NWS / NOAA weather: Extreme Heat Warning issued July 3 at 1:18AM EDT until July 4 at 9:00PM EDT by NWS Baltimore MD/Washington DC

* WHAT...Dangerously hot conditions each afternoon with heat index
values between 110 to 113 expected.

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

* WHEN...For the first Extreme Heat Warning, from 10 AM this morning
to 9 PM EDT this evening. For the second Extreme Heat Warning,
from 10 AM to 9 PM EDT Saturday.

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

Source: NWS / NOAA weather.