Weather Alerts For Richwoods, MO

# HEADLINE -------------------- FLOOD WATCH NOW IN EFFECT UNTIL 7 AM CDT SATURDAY # DETAILS -------------------- WHAT Flash flooding caused by excessive rainfall continues to be possible. WHERE Portions of Illinois, including the following areas, Bond IL, Clinton IL, Fayette IL, Madison IL, Marion IL, Monroe IL, Randolph IL, Saint Clair IL and Washington IL and Missouri, including the following areas, Crawford MO, Iron MO, Jefferson MO, Madison MO, Reynolds MO, Saint Francois MO, Sainte Genevieve MO and Washington MO. WHEN Until 7 AM CDT Saturday. IMPACTS Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. ADDITIONAL DETAILS - Additional thunderstorms are expected to develop late this evening and overnight that will be capable of producing heavy rainfall and possible flash flooding. ISSUED AT Friday, June 26, 2026 at 9:43 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 -------------------- Madison IL, Madison MO, Washington MO, Bond IL, Clinton IL, Crawford MO, Fayette IL, Iron MO, Jefferson MO, Marion IL, Monroe IL, Randolph IL, Reynolds MO, Saint Clair IL, Saint Francois MO, Sainte Genevieve MO, Washington IL Including the cities of Alton, Cahokia, Chester, Salem, Vandalia, Sparta, Centralia, Farmington, Belleville, and Edwardsville

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 INTO EARLY TONIGHT FROM THE HIGH PLAINS INTO NORTHERN OKLAHOMA AND SOUTHERN MISSOURI SUMMARY Scattered severe thunderstorms with severe outflow gusts and large hail will persist into early tonight across the High Plains and from northern Oklahoma into southern Missouri. Northern OK to southern MO Multiple strong-severe storms formed late this afternoon along a stalled front from the northeast TX Panhandle eastward into northern OK into southern MO. Seasonably high moisture content in the boundary layer (dewpoints in the low-mid 70s) and lingering warm temperatures are contributing to MLCAPE near 3000 J/kg with only weak convective inhibition, while vertical shear is sufficient for supercells with large hail (1 to 2 inches in diameter). Storms will likely persist into tonight as a result of cell interactions and an increase in warm advection with a strengthening low-level jet, immediately downstream from a subtle midlevel trough now approaching northwest OK. The stronger cells/clusters will be capable of isolated large hail and occasional severe outflow gusts of 60-70 mph as storms spread slowly southeastward across northern/central/northeast OK. A similar environment extends into southern MO along and south of the stalled front, with a few ongoing cells/clusters. There has been some localized tornado threat across south central MO where a discrete storm or two are interacting with a zone of slightly enhanced low-level shear in a moist environment, though the tornado threat will remain localized/marginal. High Plains Widely scattered storm clusters formed this afternoon and continue to develop this evening with interacting outflows from MT across eastern WY/NE Panhandle into eastern CO and the western OK Panhandle on the west edge of the moisture in a largely upslope flow regime. This corridor is downstream from a pronounced midlevel trough over the Great Basin/Pacific Northwest, which will encourage a nocturnal low-level jet to support some persistence of storms into early tonight, despite weakening buoyancy and increasing inhibition with eastward extent. Occasional severe outflow gusts and large hail will be the main threats. Potential for storms to maintain a wind/hail threat a little deeper into the overnight hours will be across southwest KS and vicinity. The storm clusters spreading eastward from CO will encounter somewhat richer low-level moisture (mid-upper 60s dewpoints) on the immediate cool side of a stalled front, coincident with a nocturnal increase in the low-level jet and associated warm advection. KY area A remnant MCV is moving eastward over western KY with the primary storm cluster from far southern IN into central KY on the leading edge of the ascent. These storms have exhibited a primarily linear mode with a trailing cold pool into western KY. Earlier discrete storms have since weakened while moving atop the rain-cooled air, though a few storms may persist into early tonight in the warm advection regime on the southwest flank of the MCV. The primary severe threat appears to be isolated wind damage with the leading line segments across central/northern KY for the next 1-2 hours before boundary-layer stabilization weakens the storms.