Rapid Alerts

* WHAT...Dangerously hot conditions with heat index values up to 110 expected.

* WHERE...Bartow, Catoosa, Chattooga, Dade, Floyd, Gordon, Murray, Polk, Walker, and Whitfield Counties.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected.

* WHERE...Buckingham County.

* WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 11 AM to 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected.

* WHERE...Buckingham County.

* WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 11 AM to 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

The headwaters of Waterloo Creek received upwards of 5 inches of rain overnight. This is leading to near record levels on the Waterloo Creek upstream of Dorchester Iowa.

* WHAT...Stream flooding on Waterloo Creek caused by excessive rainfall is occurring. Near to record levels on the Waterloo Creek is expected near Dorchester.

* WHERE...Northwestern Allamakee County in northeastern Iowa... Northeastern Winneshiek County in northeastern Iowa...

* WHEN...Until 315 PM CDT Thursday.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS... - At 909 AM CDT, gauge reports indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 3.5 and 5 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are possible in the warned area. - Some locations that will experience flooding include... Quandahl. - http://www.weather.gov/safety/flood

...The Flood Warning continues for the following rivers in Indiana...

Patoka River near Princeton.

.Major flooding is occurring on the Pakota River near Princeton. The forecast crest is still 23.8 feet. This would be a bit higher than the crest observed in April, 2025, and about a foot less than the flood of record, which occurred in May, 2011. Major flood impacts are forecast to continue until this weekend, when water levels will begin to fall.

For the Patoka River...including Princeton...Major flooding is forecast.

* WHAT...Major flooding is occurring and major flooding is forecast. This approaches the flood of record.

* WHERE...Patoka River near Princeton.

* WHEN...Until early Wednesday morning.

* IMPACTS...At 22.0 feet, Flooding affects mainly farmland. Seasonal camping trailers closest to the river become inundated.

* ADDITIONAL DETAILS... - At 8:45 AM CDT Thursday the stage was 23.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Thursday was 23.5 feet. - Forecast...The river is expected to rise to a crest of 23.8 feet just after midnight tonight. It will then fall below flood stage Tuesday evening. - Flood stage is 18.0 feet. - Flood History...This crest compares to a previous crest of 24.0 feet on 03/16/2006. - http://www.weather.gov/safety/flood

...The National Weather Service in La Crosse has issued a Flood Warning for the following rivers in Wisconsin...

Kickapoo River at Soldiers Grove affecting Crawford County.

.Up to 4 inches of rain fell near Ontario Wisconsin overnight. This rain routing downstream, combined with the additional precipitation of around 1 inch will lead to minor flooding along the Kickapoo over the next 24 hours.

* WHAT...Minor flooding is forecast.

* WHERE...Kickapoo River at Soldiers Grove.

* WHEN...From Friday morning to Friday afternoon.

* IMPACTS...At 14.0 feet, Water may begin to flood the park and campground area in the old section of town.

* ADDITIONAL DETAILS... - There is no current observed data. - Bankfull stage is 13.0 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning to a crest of 14.7 feet Saturday morning. It will then fall below flood stage early Sunday afternoon. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood

...The National Weather Service in La Crosse has issued a Flood Warning for the following rivers in Wisconsin...

Kickapoo River at La Farge affecting Richland and Vernon Counties.

Kickapoo River at Viola affecting Richland and Vernon Counties.

Kickapoo River at Readstown affecting Vernon County.

.Up to 4 inches of rain fell near Ontario Wisconsin overnight. This rain routing downstream, combined with the additional precipitation of around 1 inch will lead to minor flooding along the Kickapoo over the next 24 hours.

* WHAT...Minor flooding is forecast.

* WHERE...Kickapoo River at La Farge.

* WHEN...From this afternoon to Friday evening.

* IMPACTS...At 13.0 feet, Some roads are under water and several residences and businesses are affected. However the majority of the people in town are still dry.

* ADDITIONAL DETAILS... - At 7:00 AM CDT Thursday the stage was 4.8 feet. - Bankfull stage is 8.0 feet. - Forecast...The river is expected to rise above flood stage late this afternoon to a crest of 12.9 feet this evening. It will then fall below flood stage late tonight. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood

...The National Weather Service in La Crosse has issued a Flood Warning for the following rivers in Wisconsin...

Kickapoo River at La Farge affecting Richland and Vernon Counties.

Kickapoo River at Viola affecting Richland and Vernon Counties.

Kickapoo River at Readstown affecting Vernon County.

.Up to 4 inches of rain fell near Ontario Wisconsin overnight. This rain routing downstream, combined with the additional precipitation of around 1 inch will lead to minor flooding along the Kickapoo over the next 24 hours.

* WHAT...Minor flooding is forecast.

* WHERE...Kickapoo River at Readstown.

* WHEN...From this afternoon to Sunday evening.

* IMPACTS...At 13.0 feet, Water is up to the bottom of the Charles Street Bridge.

* ADDITIONAL DETAILS... - At 7:59 AM CDT Thursday the stage was 8.3 feet. - Bankfull stage is 10.0 feet. - Forecast...The river is expected to rise above flood stage late this afternoon to a crest of 13.3 feet tomorrow evening. It will then fall below flood stage Sunday morning. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood

...The National Weather Service in La Crosse has issued a Flood Warning for the following rivers in Wisconsin...

Kickapoo River at La Farge affecting Richland and Vernon Counties.

Kickapoo River at Viola affecting Richland and Vernon Counties.

Kickapoo River at Readstown affecting Vernon County.

.Up to 4 inches of rain fell near Ontario Wisconsin overnight. This rain routing downstream, combined with the additional precipitation of around 1 inch will lead to minor flooding along the Kickapoo over the next 24 hours.

* WHAT...Moderate flooding is forecast.

* WHERE...Kickapoo River at Viola.

* WHEN...From this afternoon to Saturday evening.

* IMPACTS...At 16.0 feet, Water begins going over Highway 131/56 in Viola.

* ADDITIONAL DETAILS... - There is no current observed data. - Bankfull stage is 13.0 feet. - Forecast...The river is expected to rise above flood stage late this afternoon to a crest of 16.2 feet early tomorrow afternoon. It will then fall below flood stage late Saturday morning. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

...The Flood Warning is extended for the following rivers in Louisiana...

Bodcau Bayou At Bayou Bodcau Lake affecting Webster and Bossier Parishes.

For the Bodcau Bayou...including Bayou Bodcau Lake...Minor flooding is forecast.

* WHAT...Minor flooding is forecast.

* WHERE...Bodcau Bayou at Bayou Bodcau Lake.

* WHEN...From late Friday night until further notice.

* IMPACTS...At 170.0 feet, Expect minor lowland flooding along the lake. Red Chute Bayou below the lake will be at bankfull. Some secondary roadways may suffer flooding. At 172.0 feet, Expect bankfull conditions on Red Chute Bayou.

* ADDITIONAL DETAILS... - At 8:00 AM CDT Thursday the stage was 169.9 feet. - Forecast...The river is expected to rise above flood stage early Saturday morning and continue rising to 175.0 feet Tuesday morning. Additional rises are possible thereafter. - Flood stage is 172.0 feet. - http://www.weather.gov/safety/flood

...The National Weather Service in La Crosse has issued a Flood Warning for the following rivers in Wisconsin...

Kickapoo River at Gays Mills affecting Crawford County.

.Up to 4 inches of rain fell near Ontario Wisconsin overnight. This rain routing downstream, combined with the additional precipitation of around 1 inch will lead to minor flooding along the Kickapoo over the next 24 hours.

* WHAT...Minor flooding is forecast.

* WHERE...Kickapoo River at Gays Mills.

* WHEN...From late tonight to Tuesday morning.

* IMPACTS...At 15.0 feet, Moderate flooding is possible in and around Gays Mills.

* ADDITIONAL DETAILS... - At 8:00 AM CDT Thursday the stage was 7.8 feet. - Bankfull stage is 13.0 feet. - Forecast...The river is expected to rise above flood stage late tonight to a crest of 14.8 feet Sunday morning. It will then fall below flood stage late Monday evening. - Flood stage is 13.0 feet. - http://www.weather.gov/safety/flood

* WHAT...For the first Heat Advisory, heat index values up to 108. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 114 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 109 possible. For the second Heat Advisory, heat index values up to 109 expected.

* WHERE...Portions of central, eastern, and north central Arkansas.

* WHEN...For the first Heat Advisory, until noon CDT today. For the Extreme Heat Warning, from noon today to 8 PM CDT this evening. For the Extreme Heat Watch, from 8 PM CDT this evening through Friday evening. For the second Heat Advisory, from 8 PM Friday to 8 PM CDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

* WHAT...For the first Heat Advisory, heat index values up to 108. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 114 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 109 possible. For the second Heat Advisory, heat index values up to 109 expected.

* WHERE...Portions of central, eastern, and north central Arkansas.

* WHEN...For the first Heat Advisory, until noon CDT today. For the Extreme Heat Warning, from noon today to 8 PM CDT this evening. For the Extreme Heat Watch, from 8 PM CDT this evening through Friday evening. For the second Heat Advisory, from 8 PM Friday to 8 PM CDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

* WHAT...Dangerously hot conditions with peak heat index values between 105 to 110.

* WHERE...Portions of central, east central, north central, south central, southeast, southwest, and west central Indiana.

* WHEN...Until 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

...The National Weather Service in La Crosse has issued a Flood Warning for the following rivers in Wisconsin...

Kickapoo River at Ontario affecting Monroe and Vernon Counties.

* WHAT...Moderate flooding is forecast.

* WHERE...Kickapoo River at Ontario.

* WHEN...From this morning to this evening.

* IMPACTS...At 18.0 feet, Flooding occurs along the river in the Ontario area. Water may be over Highway P near Bridge 10, and also over Winchell Valley Road at Bridge 8.

* ADDITIONAL DETAILS... - At 7:00 AM CDT Thursday the stage was 15.7 feet. - Bankfull stage is 15.0 feet. - Forecast...The river is expected to rise to a crest of 18.0 feet this afternoon. It will then fall below flood stage this evening. - Flood stage is 16.0 feet. - http://www.weather.gov/safety/flood

...The Flood Warning continues for the following rivers in Louisiana...Mississippi...

Pearl River Near Bogalusa affecting Pearl River County and Washington Parish.

...The Flood Warning is extended for the following rivers in Louisiana...Mississippi...

Pearl River Near Pearl River affecting Hancock and Pearl River Counties and St. Tammany Parish.

For the Lower Pearl River...including Bogalusa, Pearl River...Minor flooding is forecast.

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Pearl River near Pearl River.

* WHEN...Until Tuesday evening.

* IMPACTS...At 16.0 feet, Lower portions of streets in River Gardens Subdivision will begin to flood. Secondary roads to the river and throughout Honey Island Swamp will remain inundated. Property in the vicinity of the gage is flooded threatening about 20 homes along the left bank. The Bogue Chitto National Wildlife Refuge will be closed to hunting at the 15.5 foot stage.

* ADDITIONAL DETAILS... - At 7:00 AM CDT Thursday the stage was 15.9 feet. - Bankfull stage is 12.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:00 AM CDT Thursday was 15.9 feet. - Forecast...The river is expected to rise to a crest of 16.0 feet tomorrow morning. It will then fall below flood stage Tuesday afternoon. - Flood stage is 14.0 feet. - Flood History...This crest compares to a previous crest of 16.0 feet on 01/09/1926. - http://www.weather.gov/safety/flood

...The Flood Warning continues for the following rivers in Louisiana...Mississippi...

Pearl River Near Bogalusa affecting Pearl River County and Washington Parish.

...The Flood Warning is extended for the following rivers in Louisiana...Mississippi...

Pearl River Near Pearl River affecting Hancock and Pearl River Counties and St. Tammany Parish.

For the Lower Pearl River...including Bogalusa, Pearl River...Minor flooding is forecast.

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Pearl River near Bogalusa.

* WHEN...Until Sunday morning.

* IMPACTS...At 20.0 feet, Woodlands and crop acreage along the river will be flooded. The Bogue Chitto Wildlife Management area will be inundated with water in recreational camps and over access roads.

* ADDITIONAL DETAILS... - At 7:15 AM CDT Thursday the stage was 20.4 feet. - Bankfull stage is 15.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:15 AM CDT Thursday was 20.4 feet. - Forecast...The river is expected to fall below flood stage early Sunday morning and continue falling to 11.1 feet Sunday, July 12. - Flood stage is 18.0 feet. - Flood History...This crest compares to a previous crest of 20.4 feet on 04/08/1976. - http://www.weather.gov/safety/flood

* WHAT...Dangerously hot conditions with heat index values up to 103.

* WHERE...Bay, Huron, Midland, Saginaw, Sanilac, and Tuscola Counties.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 110 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 110 expected.

* WHERE...Nelson County.

* WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible.

* WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia.

* WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. For the Extreme Heat Watch, from Saturday morning through Saturday evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible.

* WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia.

* WHEN...For the first Extreme Heat Warning, until 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. For the Extreme Heat Watch, from Saturday morning through Saturday evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

The National Weather Service in La Crosse has issued a

* Flash Flood Warning for... Southern Houston County in southeastern Minnesota...

* Until 800 AM CDT.

* At 559 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include... Spring Grove, New Albin, Wilmington, Reno, Eitzen, Dun Romin Park Campground, County 14 And White Tail Road, Willington Grove, County 5 And Peyton Road, County 16 And 4 Corners Drive and Newhouse.

* WHAT...Dangerously hot conditions with heat index values up to 108 expected.

* WHERE...Coastal Waldo, Interior Waldo, Kennebec, Knox, Lincoln, Sagadahoc, and Coastal Cumberland Counties.

* WHEN...From 11 AM this morning to 8 PM EDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...Overnight low temperatures will only fall into the 70s, resulting in accumulated heat stress.

* WHAT...Dangerously hot conditions with heat index values up to 110.

* WHERE...Portions of southwest and western Maine and central, northern, and southern New Hampshire.

* WHEN...Until 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...Overnight low temperatures will only fall into the 70s, resulting in accumulated heat stress.

* WHAT...Very warm conditions continue through this morning with heat index values remaining over 75 degrees. Dangerously hot conditions with heat index values up to 100 degrees then develop this afternoon and continue through this evening.

* WHERE...Portions of east central, south central, and southeast Wisconsin.

* WHEN...Until 10 PM CDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values up to 100-110 expected. Overnight lows in the upper 70s.

* WHERE...Portions of east central and northeast Kansas and central, north central, northeast, northwest, and west central Missouri.

* WHEN...Until 9 PM CDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...Several days of extreme heat will impact the region with poor heat relief during the overnight hours.

At 524 AM CDT, emergency management reported flooding resulting in closed roads and difficult travel in Mower County. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Emergency management reported.

IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Some locations that will experience flash flooding include... Austin, La Crescent, Caledonia, Preston, Chatfield, Spring Valley, Rushford, Grand Meadow, Harmony, Houston, Adams, Lanesboro, Brownsdale, Hokah, Brownsville, Wykoff, Fountain, Rose Creek, Rushford Village and Washington.

This includes Interstate 90 in Minnesota between mile markers 175 and 204.

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 115. For the Heat Advisory, heat index values up to 109 expected.

* WHERE...All of northern Alabama and southern middle Tennessee

* WHEN...For the Extreme Heat Warning, until 7 PM CDT this evening. For the Heat Advisory, from 7 PM this evening to 7 PM CDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...A portion of west central Kansas, including the following county, Scott.

* WHEN...Until 900 AM CDT.

* IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring.

* ADDITIONAL DETAILS... - At 433 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Flooding is ongoing or expected to begin shortly in the warned area. Between 3 and 4.5 inches of rain have fallen. - Some locations that will experience flooding include... Scott City and Shallow Water. - http://www.weather.gov/safety/flood

The National Weather Service in La Crosse has issued a

* Flash Flood Warning for... Fillmore County in southeastern Minnesota... Houston County in southeastern Minnesota... Mower County in southeastern Minnesota...

* Until 730 AM CDT.

* At 423 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include... Austin, La Crescent, Caledonia, Preston, Chatfield, Spring Valley, Rushford, Grand Meadow, Harmony, Houston, Adams, Lanesboro, Brownsdale, Hokah, Brownsville, Wykoff, Fountain, Rose Creek, Rushford Village and Washington.

This includes Interstate 90 in Minnesota between mile markers 175 and 204.

* WHAT...Dangerously hot conditions with heat index values near or exceeding 105 degrees. Additionally, low temperatures in the 70s will provide only limited relief at night.

* WHERE...Portions of east central, northeast, south central, and southeast Kentucky.

* WHEN...Until 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...An extended period of hot and humid conditions continues through at least Friday - with the most oppressive conditions expected on today.

* AFFECTED AREA...Fire Weather Zone 214.

* TIMING...From noon today to 8 PM MDT this evening.

* WINDS...Southwest 15 to 20 mph with gusts up to 30 mph.

* RELATIVE HUMIDITY...As low as 6 percent.

* IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.

* WHAT...Dangerously hot conditions with heat index values up to 105.

* WHERE...Anderson, Coffey, Douglas, Franklin, Osage, Shawnee, and Jefferson Counties.

* WHEN...Until 8 PM CDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values from 105 to 112 degrees will continue.

* WHERE...all of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri.

* WHEN...Until 8 PM CDT /9 PM EDT/ Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values up to 106.

* WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri.

* WHEN...Until 10 PM CDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values up to 105.

* WHERE...Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri.

* WHEN...Until 10 PM CDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...Thunderstorms and associated clouds may interrupt the heat at times today and especially on Friday.

* WHAT...Dangerously hot conditions with heat index values over 100.

* WHERE...Portions of central, south central, southeast, and southwest Iowa.

* WHEN...Until 10 PM CDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with peak heat index values between 100 and 115 degrees Fahrenheit. Mild overnight temperatures will also not allow for much reprieve from the hot and humid conditions.

* WHERE...Portions of south central Indiana and central Kentucky.

* WHEN...Until 9 PM EDT /8 PM CDT/ Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values rising this afternoon into the 100 to 105 range.

* WHERE...Portions of central, south central, southwest, and west central Michigan.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values of 100 to 110 degrees expected.

* WHERE...Portions of northern Indiana, southwest Michigan, and northwest Ohio.

* WHEN...Until 8 PM EDT /7 PM CDT/ this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...Peak afternoon heat indices around 100 degrees may extend into Friday.

* WHAT...Dangerously hot conditions with heat index values around 105.

* WHERE...Marshall, Mason, McLean, Peoria, Stark, Tazewell, Woodford, Fulton, and Knox Counties.

* WHEN...Until midnight CDT tonight.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values 105 to 110.

* WHERE...Along and south of a Rushville...to Lincoln...to Danville line.

* WHEN...Until 7 PM CDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MDT THIS EVENING DUE TO STRONG WINDS AND LOW RELATIVE HUMIDITY FOR THE NORTHEAST PLAINS AND NORTHEAST HIGHLANDS...

.Humidity will trend down some today, while wind speeds trend up sufficiently to produce critical fire weather conditions across portions of northeast NM during the afternoon and early evening hours. Several hours of single digit humidity values are expected across the Northeast Highlands.

* AFFECTED AREA...Northeast Plains (Zone 104) and Northeast Highlands (Zone 123).

* TIMING...From 1 PM this afternoon to 8 PM MDT this evening.

* 20 FOOT WINDS...Southwest winds 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...Relative humidity between 6 to 15 percent.

* IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

* WHAT...Dangerously hot conditions with heat index values up to 111 expected.

* WHERE...Bartow, Chattooga, Floyd, Gordon, Murray, Polk, and Whitfield Counties.

* WHEN...From noon today to 8 PM EDT this evening.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...Dangerously hot conditions with heat index values between 105 and 115 degrees expected each day.

* WHERE...Atlantic, Cape May, and Cumberland Counties.

* WHEN...From noon today to 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...Very warm low temperatures in the mid 70s to near 80 degrees at night will not offer any relief from the heat. This combined with multiple days of near record breaking temperatures will exacerbate the impacts from the heat and humidity. The hottest conditions are expected to occur on Friday.

* WHAT...Dangerously hot conditions with heat index values up to 110 expected.

* WHERE...Adams, Dauphin, Lancaster, Lebanon, and York Counties.

* WHEN...Until 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...The heat and humidity are now expected to continue to make dangerous conditions all the way through Saturday evening.

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 109. For the Heat Advisory, heat index values up to 103 expected.

* WHERE...A portion of central Pennsylvania.

* WHEN...For the Extreme Heat Warning, until 8 PM EDT Friday. For the Heat Advisory, from 8 PM Friday to 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...High temperatures will exceed 100 degrees in many places today and Friday with even higher heat index values expected. Temperatures will be a few degrees lower on Saturday, but heat risks will continue.

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 108 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 109 expected.

* WHERE...In Virginia, Clarke, Frederick, Page, Shenandoah, and Warren Counties. In West Virginia, Eastern Grant, Eastern Mineral, Hampshire, and Hardy Counties.

* WHEN...For the first Extreme Heat Warning, from 10 AM this morning to 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT...For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 109 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected.

* WHERE...In Maryland, Washington and Central and Eastern Allegany Counties. In West Virginia, Berkeley, Jefferson, and Morgan Counties.

* WHEN...For the first Extreme Heat Warning, from 10 AM this morning to 8 PM EDT this evening. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

The National Weather Service in Denver has issued a

* Flash Flood Warning for... Northwestern Weld County in northeastern Colorado...

* Until 415 AM MDT.

* At 118 AM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts of 0.5 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, gulches, roads, and poor drainage and low-lying areas.

* Some locations that will experience flash flooding include... Greeley, Johnstown, Milliken, Eaton, Ault, Purcell, Galeton and Lucerne.

* WHAT...Dangerously hot conditions with heat index values of 100 to 115 degrees expected today and Friday! Heat indices of 95-100+ degrees are expected on Saturday.

* WHERE...All of southern New England except the Cape and Islands.

* WHEN...Until 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...This is a prolonged and dangerous heatwave with little relief at night.

* WHAT...Dangerously hot conditions with heat index values of 105 to 115 expected.

* WHERE...Bronx, Kings (Brooklyn), New York (Manhattan), Northern Queens, Richmond (Staten Island), and Southern Queens Counties.

* WHEN...Until 9 PM EDT Saturday.

* IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.

* ADDITIONAL DETAILS...This is a multi-day extreme heat event with near record high temperatures and little overnight relief. This level of heat can be deadly for those without adequate cooling and hydration. Impacts to transportation infrastructure and electrical and water systems are also possible.

The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 10 AM Friday to midnight MDT Friday night. The Fire Weather Watch for Friday is no longer in effect.

* AFFECTED AREA...Fire Weather Zones 220, 221, 222, 223, 224, 225 and 229.

* WINDS...Southwest 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 5 percent.

* IMPACTS...Fires will catch and spread quickly. Exercise extreme caution and avoid any activities which could start a wildfire.

The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 10 AM Friday to midnight MDT Friday night. The Fire Weather Watch for Friday is no longer in effect.

* AFFECTED AREA...Fire Weather Zones 220, 221, 222, 223, 224, 225 and 229.

* WINDS...Southwest 15 to 25 mph with gusts up to 35 mph.

* RELATIVE HUMIDITY...As low as 5 percent.

* IMPACTS...Fires will catch and spread quickly. Exercise extreme caution and avoid any activities which could start a wildfire.

* WHAT...Dangerously hot conditions with heat index values up to 107 expected.

* WHERE...Bedford, Blair, and Fulton Counties.

* WHEN...Until 8 PM EDT Friday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...High temperatures will be well into the 90s and may hit 100 degrees. Heat index values will be even higher. While temperatures will remain hot on Saturday, they should be a couple of degrees lower.

* WHAT...Dangerously hot conditions with heat index values up to 110 expected.

* WHERE...Adams, Dauphin, Lancaster, Lebanon, and York Counties.

* WHEN...Until 8 PM EDT Saturday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

* ADDITIONAL DETAILS...The heat and humidity are now expected to continue to make dangerous conditions all the way through Saturday evening.

At 148 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 3 and 4 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches will be possible. Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Some locations that will experience flash flooding include... New Rome, Big Flats, Colburn, Lake Sherwood, Lake Camelot, Lake Arrowhead, The Leola Marsh Wildlife Area, County Roads O And W, County Roads D And W, County Roads G And O, County Roads D And G, County Roads C And G and Monroe Center.