All alerts

Missouri weather alerts

8 National Weather Service alerts are in force in Missouri, covering 17 of its 115 counties: 6 flood warnings, a flood watch and a heat advisory.

Checked Sun, Sep 20, 2026, 1:13 PM CDT. Times are Central Daylight Time.

Warnings on the map

Every watch, warning and advisory the National Weather Service has in force over Missouri. Open it for the live map, where it pans and zooms.

Every watch, warning and advisory the National Weather Service has in force over Missouri Open the live map with warnings and watches

Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.

Alerts in force8

Every product covering any part of Missouri, worst first, with its full text.

Severe 7

Flood Warnings 6

Flood Warning

Severe

Flood Warning issued September 20 at 11:48AM CDT until September 27 at 3:00AM CDT by NWS St Louis MO

Begins Until 7 days left

Areas Adams, IL; Lewis, MO

County pages Lewis County

Full text

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at LaGrange. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at LaGrange. * WHEN...From Wednesday evening to late Saturday night. * IMPACTS...At 18.0 feet, The entrance to the lower parking lot at the Mark Twain Casino begins flooding near this height, requiring the use of an alternate entrance. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 8.6 feet. - Forecast...The river is expected to rise above flood stage Wednesday evening to a crest of 17.9 feet early Thursday afternoon. It will then fall below flood stage Friday evening. - Flood stage is 17.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

NWS St Louis MOShare this alert

Flood Warning

Severe

Flood Warning issued September 20 at 11:48AM CDT until September 27 at 12:00PM CDT by NWS St Louis MO

Begins Until 7 days left

Areas Adams, IL; Lewis, MO

County pages Lewis County

Full text

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at LaGrange. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Canton. * WHEN...From Wednesday morning to Sunday afternoon. * IMPACTS...At 16.6 feet, Front Street leading to the campground and Corps park campgrounds flood at this height. * ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday the stage was 7.0 feet. - Forecast...The river is expected to rise above flood stage late Wednesday morning to a crest of 16.6 feet Thursday evening. It will then fall below flood stage early Saturday morning. - Flood stage is 15.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

NWS St Louis MOShare this alert

Flood Warning

Severe

Flood Warning issued September 20 at 11:48AM CDT until September 27 at 1:00PM CDT by NWS St Louis MO

Begins Until 7 days left

Areas Pike, IL; Marion, MO

County pages Marion County

Full text

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at LaGrange. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...From Wednesday evening to Sunday afternoon. * IMPACTS...At 18.0 feet, The northern end of Southside Recreation #2 Park along Bear Creek begins flooding at this height. Gate wells are shut down to prevent the sewers from backing up. Also at this level pumps are set to standby. * ADDITIONAL DETAILS... - At 11:15 AM CDT Sunday the stage was 11.6 feet. - Forecast...The river is expected to rise above flood stage late Wednesday evening to a crest of 18.2 feet early Friday morning. It will then fall below flood stage Saturday morning. - Flood stage is 17.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

NWS St Louis MOShare this alert

Flood Warning

Severe

Flood Warning issued September 20 at 11:48AM CDT until September 27 at 9:00PM CDT by NWS St Louis MO

Begins Until 7 days left

Areas Pike, IL; Ralls, MO

County pages Ralls County

Full text

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at LaGrange. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Saverton. * WHEN...From Wednesday afternoon to Sunday evening. * IMPACTS...At 15.5 feet, An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level. * ADDITIONAL DETAILS... - At 10:00 AM CDT Sunday the stage was 7.7 feet. - Forecast...The river is expected to rise above flood stage early Wednesday afternoon to a crest of 18.2 feet early Friday morning. It will then fall below flood stage Saturday afternoon. - Flood stage is 16.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

NWS St Louis MOShare this alert

Flood Warning

Severe

Flood Warning issued September 20 at 11:48AM CDT by NWS St Louis MO

Begins Until 34 hr 46 min left

Areas Calhoun, IL; Lincoln, MO

County pages Lincoln County

Full text

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at LaGrange. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Winfield. * WHEN...From Thursday afternoon until further notice. * IMPACTS...At 27.5 feet, At this stage, Lock and Dam 25 will stockpile 200 tons of sand, 12,000 sandbags, and 10,000 square feet of polyethylene plastic as a precaution. * ADDITIONAL DETAILS... - At 11:30 AM CDT Sunday the stage was 18.0 feet. - Forecast...The river is expected to rise above flood stage Thursday afternoon and continue rising to a crest of 27.4 feet Friday evening. - Flood stage is 26.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

NWS St Louis MOShare this alert

Flood Warning

Severe

Flood Warning issued September 20 at 11:48AM CDT by NWS St Louis MO

Begins Until 34 hr 46 min left

Areas Calhoun, IL; Pike, MO

County pages Pike County

Full text

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Canton. Mississippi River at Clarksville. Mississippi River at Saverton. Mississippi River at LaGrange. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...From Wednesday afternoon until further notice. * IMPACTS...At 29.0 feet, Water enters the parking lot entrance at the Clarksville Riverfront Park. * ADDITIONAL DETAILS... - At 11:30 AM CDT Sunday the stage was 17.8 feet. - Forecast...The river is expected to rise above flood stage early Wednesday afternoon and continue rising to a crest of 28.2 feet Friday morning. - Flood stage is 25.0 feet.

What to do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

NWS St Louis MOShare this alert

Flood Watch

Severe

Flood Watch issued September 20 at 11:44AM CDT until September 26 at 2:00PM CDT by NWS Quad Cities IA IL

Begins Until 6 days left

Areas Hancock, IL; Clark, MO

County pages Clark County

Full text

...The Flood Watch continues for the following rivers in Missouri... Illinois... Mississippi River at Gregory Landing affecting Hancock and Clark Counties. * WHAT...Flooding is possible. * WHERE...Mississippi River at Gregory Landing. * WHEN...From Tuesday afternoon to Saturday afternoon. * ADDITIONAL DETAILS... - At 11:30 AM CDT Sunday the stage was 7.8 feet and steady. - Forecast...Rises on the river are likely through the first half of this week. The river may reach flood stage. - Flood stage is 15.0 feet.

What to do

If you are in the watch area, remain alert to possible flooding. Residents and those with interests near the river should monitor rising water levels and be prepared for possible Flood Warnings. Additional information is available at www.weather.gov/quadcities. The next statement will be issued by Monday morning.

NWS Quad Cities IA ILShare this alert

Moderate 1

Heat Advisory

Moderate

Heat Advisory issued September 20 at 4:20AM CDT until September 20 at 7:00PM CDT by NWS Paducah KY

Issued Until 5 hr 46 min left

Areas Jefferson, IL; Wayne, IL; Edwards, IL; Wabash, IL; Perry, IL; Franklin, IL; Hamilton, IL; White, IL; Jackson, IL; Williamson, IL; Saline, IL; Gallatin, IL; Union, IL; Johnson, IL; Pope, IL; Hardin, IL; Alexander, IL; Pulaski, IL; Massac, IL; Gibson, IN; Pike, IN; Posey, IN; Vanderburgh, IN; Warrick, IN; Spencer, IN; Fulton, KY; Hickman, KY; Carlisle, KY; Ballard, KY; McCracken, KY; Graves, KY; Livingston, KY; Marshall, KY; Calloway, KY; Crittenden, KY; Lyon, KY; Trigg, KY; Caldwell, KY; Union, KY; Webster, KY; Hopkins, KY; Christian, KY; Henderson, KY; Daviess, KY; McLean, KY; Muhlenberg, KY; Todd, KY; Perry, MO; Bollinger, MO; Cape Girardeau, MO; Wayne, MO; Carter, MO; Ripley, MO; Butler, MO; Stoddard, MO; Scott, MO; Mississippi, MO; New Madrid, MO

County pages Bollinger County, Butler County, Cape Girardeau County, Carter County, Mississippi County, New Madrid County, Perry County, Ripley County, Scott County, Stoddard County, Wayne County

Full text

* WHAT...Heat index values up to 102 degrees are expected. * WHERE...all of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 7 PM CDT /8 PM EDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

What to do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

NWS Paducah KYShare this alert

By county

Every county in Missouri, with what is in force there now. Each page adds the county's warning history for the past year.

What this means

Warning
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.

Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.

Sources

Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.