Clarkson Valley, MO Weather Warnings

Issue Date: 544 PM CDT Thu May 19 2022
...FLOOD ADVISORY IN EFFECT UNTIL 845 PM CDT THIS EVENING... * WHAT...Urban and small stream flooding caused by excessive rainfall is expected. * WHERE...Portions of southwest Illinois, including the following counties, Monroe and Saint Clair. Portions of east central Missouri, including the following county and independent city, Saint Louis and Saint Louis City. * WHEN...Until 845 PM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Ponding of water in urban or other areas is occurring or is imminent. * ADDITIONAL DETAILS... - At 544 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 1 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... St. Louis, East St. Louis, Arnold, Cahokia, Crestwood, Columbia, Sunset Hills, Centreville, Washington Park, Dupo, Madison, Lakeshire, Lemay, Mehlville, Affton, Cahokia Parks Airport, Oakville, Fairmont City, Green Park and Alorton. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don`t drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 3856 9034 3866 9018 3866 9012 3858 9010 3848 9017 3840 9027 3839 9034 3841 9035 3844 9035 3845 9034 3846 9035 3845 9037 3846 9038 3855 9038

Issue Date: 244 PM CDT Thu May 19 2022
This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Tonight. Thunderstorms are expected across southeast Missouri and southwest Illinois this afternoon. Large hail, damaging winds, and tornadoes are possible. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Thunderstorm chances return to the northern part of the area Friday night, with this threat shifting slowly southward through the day Saturday. The stronger storms could contain large hail. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed through this afternoon.