Elevated North America

NWS / NOAA weather: Flash Flood Warning issued July 4 at 9:21PM CDT until July 4 at 9:30PM CDT by NWS St Louis MO

{ "@context": [ "https://geojson.org/geojson-ld/geojson-context.jsonld", { "@version": "1.1", "wx": "https://api.weather.gov/ontology#", "@vocab": "https://api.weather.gov/ontology#" } ], "id": " ", "type": "Feature", "geometry": { "type": "Polygon", "coordinates": [ [ [ -90.66, 38.48 ], [ -90.73, 38.62 ], [ -90.73, 38.64 ], [ -90.71, 38.65 ], [ -90.66, 38.69 ], [ -90.55, 38.68 ], [ -90.53, 38.7 ], [ -90.53, 38.71 ], [ -90.46, 38.68 ], [ -90.19, 38.67 ], [ -90.18, 38.64 ], [ -90.2, 38.59 ], [ -90.22, 38.58 ], [ -90.26, 38.53 ], [ -90.41, 38.5 ], [ -90.59, 38.5 ], [ -90.62, 38.47 ], [ -90.64, 38.49 ], [ -90.66, 38.48 ] ] ] }, "properties": { "@id": " ", "@type": "wx:Alert", "id": " "areaDesc": "St. Louis, MO; St. Louis City, MO", "geocode": { "SAME": [ "029189", "029510" ], "UGC": [ "MOC189", "MOC510" ] }, "affectedZones": [ "https://api.weather.gov/zones/county/MOC189", "https://api.weather.gov/zones/county/MOC510" ], "references": [ { "@id": "https://api.weather.gov/alerts/ "identifier": " "sender": "w-nws.webmaster@noaa.gov", "sent": "2026-07-04T19:21:00-05:00" } ], "sent": "2026-07-04T21:21:00-05:00", "effective": "2026-07-04T21:21:00-05:00", "onset": "2026-07-04T21:21:00-05:00", "expires": "2026-07-04T21:31:00-05:00", "ends": "2026-07-04T21:30:00-05:00", "status": "Actual", "messageType": "Update", "category": "Met", "severity": "Severe", "certainty": "Likely", "urgency": "Immediate", "event": "Flash Flood Warning", "sender": "w-nws.webmaster@noaa.gov", "senderName": "NWS St Louis MO", "headline": "Flash Flood Warning issued July 4 at 9:21PM CDT until July 4 at 9:30PM CDT by NWS St Louis MO", "description": "The heavy rain has ended. Flood waters have receded. Flooding is no\nlonger expected to pose a threat. Please continue to heed remaining\nroad closures.", "instruction": null, "response": "Avoid", "note": null, "parameters": { "AWIPSidentifier": [ "FFSLSX" ], "WMOidentifier": [ "WGUS73 KLSX 050221" ], "NWSheadline": [ "FLASH FLOOD WARNING WILL EXPIRE AT 930 PM CDT THIS EVENING FOR SOUTHWESTERN SAINT LOUIS COUNTY AND THE SAINT LOUIS CITY" ], "BLOCKCHANNEL": [ "EAS", "NWEM", "CMAS" ], "EAS-ORG": [ "WXR" ], "VTEC": [ "/O.EXP.KLSX.FF.W.0044.000000T0000Z-260705T0230Z/" ], "eventEndingTime": [ "2026-07-04T21:30:00-05:00" ], "expiredReferences": [ "w-nws.webmaster@noaa.gov, w-nws.webmaster@noaa.gov, ] }, "scope": "Public", "code": "IPAWSv1.0", "language": "en-US", "web": "http://www.weather.gov", "eventCode": { "SAME": [ "FFS" ], "NationalWeatherService": [ "FFW" ] } } }

Source: NWS / NOAA weather.
Source: NWS / NOAA weather

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