Weather Alerts For Parkway, MO

# HEADLINE -------------------- FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING # DETAILS -------------------- WHAT Flash flooding caused by excessive rainfall continues to be possible. WHERE Portions of Illinois, including the following areas, Calhoun IL, Greene IL, Jersey IL, Macoupin IL, Montgomery IL and Pike IL and Missouri, including the following areas, Audrain MO, Boone MO, Callaway MO, Cole MO, Franklin MO, Gasconade MO, Lincoln MO, Moniteau MO, Montgomery MO, Osage MO, Pike MO, Saint Charles MO, Saint Louis City MO, Saint Louis MO and Warren MO. WHEN Until 7 PM CDT this evening. IMPACTS Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. ADDITIONAL DETAILS - Thunderstorms capable of producing heavy rain rates on top of already saturated ground may result in flash flooding. - SOME LOCATIONS THAT MAY EXPERIENCE FLOODING INCLUDE St. Louis, Columbia, O'Fallon, St. Charles, St. Peters, Florissant, Chesterfield, Jefferson City, Wildwood, University City, Ballwin, Wentzville, Kirkwood, Maryland Heights, Hazelwood, Webster Groves and Ferguson. ISSUED AT Friday, June 26, 2026 at 1:49 PM CDT ISSUED BY National Weather Service St Louis MO HEADER URGENT - IMMEDIATE BROADCAST REQUESTED | Flood Watch # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. # AREAS AFFECTED -------------------- Pike MO, Audrain MO, Boone MO, Calhoun IL, Callaway MO, Cole MO, Franklin MO, Gasconade MO, Greene IL, Jersey IL, Lincoln MO, Macoupin IL, Moniteau MO, Montgomery IL, Montgomery MO, Osage MO, Pike IL, Saint Charles MO, Saint Louis City MO, Saint Louis MO, Warren MO Including the cities of Mexico, Litchfield, Fulton, Saint Charles, Washington, Jefferson City, Pittsfield, Union, Saint Louis, Columbia, Sullivan, and Bowling Green

Closest strike: 29.39 miles Monitor Storms You are not at immediate risk, but frequently check WeatherBug to see if storms are moving towards you. Be aware that new storms can also form with little notice.

There is a Marginal Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE NORTHERN/CENTRAL HIGH PLAINS...SOUTHERN PLAINS TO THE LOWER OHIO VALLEY...AND PARTS OF NEW ENGLAND SUMMARY Scattered severe thunderstorm development is expected today, particularly this afternoon into tonight across parts of the southern Plains to Lower Ohio Valley and across parts of the northern and central High Plains to the Black Hills vicinity. Other severe storms are expected across portions of New England. 20Z Update The forecast remains on track, and only minor changes were made with this update. The SLGT risk in the central High Plains was expanded southeastward from southeast CO into southwest KS and parts of the OK/TX Panhandles. Guidance is in relatively good agreement, depicting thunderstorms evolving off the Raton Mesa and tracking east-southeastward along a gradient of rich boundary-layer moisture/moderate surface-based buoyancy this evening/tonight. Aided by 40 kt of effective shear and increasing low-level hodograph curvature amid a strengthening nocturnal LLJ, supercell clusters will pose a risk for severe gusts, large hail, and possibly a tornado. Farther east, a minor westward expansion of the SLGT risk was made into north-central OK. Ample diurnal heating/destabilization of a very moist air mas (middle/upper 70s dewpoints) is yielding strong surface-based buoyancy along an east/west-oriented surface boundary. Current thinking is that a few organized clusters/supercells developing along the boundary will be capable of producing severe wind gusts and large hail later this afternoon/evening.