Weather Alerts For Chester, IL

# HEADLINE -------------------- The Flood Warning continues for the following rivers in Illinois, Missouri The Flood Warning is extended for the following rivers in Illinois, Missouri FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON # SUMMARY -------------------- Mississippi River at Mel Price LD. Mississippi River at Chester. Mississippi River at Grafton. Mississippi River at Winfield. Mississippi River at Louisiana. Mississippi River at Clarksville. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. Mississippi River Chester 27.0 30.1 29.3 27.1 24.8 23.2 22.2 # DETAILS -------------------- WHAT Minor flooding is occurring and minor flooding is forecast. WHERE Mississippi River at Chester. WHEN Until Wednesday afternoon. ADDITIONAL DETAILS - At 10:00 AM CDT Sunday the stage was 30.1 feet. - RECENT ACTIVITY The maximum river stage in the 24 hours ending at 10:00 AM CDT Sunday was 31.2 feet. - FORECAST - The river is expected to fall below flood stage Tuesday morning. - Flood stage is 27.0 feet. ISSUED AT Sunday, May 3, 2026 at 10:29 AM CDT ISSUED BY National Weather Service St Louis MO HEADER Flood Statement # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

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 MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE MIDDLE MISSISSIPPI VALLEY SUMMARY Isolated severe storms capable of hail and gusty winds are possible mainly this evening across northern/eastern Missouri into south-central Illinois. Northern/eastern Missouri into south-central Illinois Airmass modification and modest-caliber moist advection will occur north-northeastward into the region along and south of a decelerating southeastward-moving front. The limited low-level moisture, coupled with strong heating and mixing, should keep the airmass across the region capped through the afternoon. However, toward/after sunset, sufficient moistening atop the decoupling boundary layer should support increasing thunderstorm development this evening. Convection will tend to be rooted around 750-850 mb, and while elevated buoyancy will not be robust, the steep lapse rates could yield some severe hail (and possibly gusty winds) in the presence of 40+ kt shear through the cloud-bearing layer. Far South Florida While a couple of strong storms could occur through the afternoon, cloud cover and an increasingly prevalent post-frontal regime, along with weak lapse rates in the cloud-bearing layer, should tend to limit storm intensity inland. Northern California/southwest Oregon Thunderstorms are expected along the northern periphery of the upper low off the central California coast. Increasing mid-level moisture and cold mid-level temperatures will support modest buoyancy amid moderate easterly flow aloft, supporting the potential for small hail and gusty winds with these westward progressing storms during the late afternoon and early evening. However, organized severe storm potential is expected to remain low.

Pollen Index: 10 Pollen Level: high Predominant Pollen: Oak, Mulberry and Grass. The pollen levels for Monday will be increasing and extend further into the very high range. This increase is due to rising temperatures, strong winds and lower relative humidity.