Portage Des Sioux Warnings, Watches and Advisories
NWS Active Alerts for MO - Map View
Flood Warning
Platte, MO
Flood Warning issued October 4 at 8:21PM CDT until October 5 at 11:38PM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Minor flooding is occurring. * WHERE...Platte River near Platte City. * WHEN...Until Monday evening. * IMPACTS...At 20.0 feet, Cropland near State Highway 92 near Platte City begins to flood. At 22.0 feet, Flooding occurs at Humphreys Access Area which is located 5 miles downstream from Platte City. 300 acres of pasture are also flooded. * ADDITIONAL DETAILS... - At 7:30 PM CDT Sunday the stage was 20.9 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling to 1.9 feet Friday evening. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Carroll, MO; Chariton, MO; Linn, MO; Livingston, MO
Flood Warning issued October 4 at 8:21PM CDT until October 6 at 12:19AM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Minor flooding is occurring. * WHERE...Grand River near Sumner. * WHEN...Until late Monday night. * IMPACTS...At 23.0 feet, Bottomland 1 to 2 miles south of the gage begins to flood. At 26.0 feet, Rural land adjacent to the river is flooded. At 28.0 feet, Rural roads are under water. * ADDITIONAL DETAILS... - At 7:45 PM CDT Sunday the stage was 27.4 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling to 10.6 feet Friday evening. - Flood stage is 26.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Jackson, MO; Lafayette, MO; Ray, MO
Flood Warning issued October 4 at 8:21PM CDT until October 6 at 9:40AM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Missouri River at Napoleon. * WHEN...Until Tuesday morning. * IMPACTS...At 17.0 feet, Low-lying areas unprotected by levees begin to flood. * ADDITIONAL DETAILS... - At 8:00 PM CDT Sunday the stage was 19.2 feet. - Forecast...The river is expected to fall below flood stage late tomorrow morning and continue falling to 8.7 feet Friday evening. - Flood stage is 17.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Carroll, MO; Chariton, MO
Flood Warning issued October 4 at 8:21PM CDT until October 6 at 11:00AM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Grand River near Brunswick. * WHEN...Until Tuesday morning. * IMPACTS...At 19.0 feet, Flooding of low-lying areas occurs along the west bank of the Grand River near the U.S. Highway 24 bridge about 1 mile west of Brunswick. At 22.0 feet, Low-lying areas along the east bank of the Grand River near the U.S. Highway 24 bridge begin to flood. * ADDITIONAL DETAILS... - At 6:45 PM CDT Sunday the stage was 22.2 feet. - Forecast...The river is expected to fall below flood stage late tomorrow morning and continue falling to 6.3 feet Friday evening. - Flood stage is 19.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Carroll, MO; Lafayette, MO; Saline, MO
Flood Warning issued October 4 at 8:21PM CDT until October 6 at 8:20PM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Missouri River at Waverly. * WHEN...Until Tuesday evening. * IMPACTS...At 23.5 feet, Rural areas along the river which are not protected by levees flood. * ADDITIONAL DETAILS... - At 7:00 PM CDT Sunday the stage was 24.3 feet. - Forecast...The river is expected to fall below flood stage tomorrow evening and continue falling to 12.5 feet Sunday, October 11. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Chariton, MO; Howard, MO; Saline, MO
Flood Warning issued October 4 at 8:21PM CDT until October 6 at 11:17PM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Missouri River at Glasgow. * WHEN...Until Tuesday evening. * IMPACTS...At 25.0 feet, Farmland along the river floods. At 27.0 feet, Many agricultural levees are overtopped. Widespread flooding of rural areas occurs. Secondary roads and homes behind levees may be inundated. * ADDITIONAL DETAILS... - At 7:30 PM CDT Sunday the stage was 28.3 feet. - Forecast...The river is expected to fall below flood stage late tomorrow evening and continue falling to 14.6 feet Friday evening. - Flood stage is 25.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Boone, MO; Cooper, MO; Howard, MO; Moniteau, MO
Flood Warning issued October 4 at 8:21PM CDT until October 7 at 5:36AM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Missouri River at Boonville. * WHEN...Until late Tuesday night. * IMPACTS...At 21.0 feet, Low-lying rural areas along the river flood. At 23.8 feet, Easley River Road and Smith Hatchery Road begin to flood. At 25.0 feet, Numerous farm levees are overtopped. Flooding of agricultural land and secondary roads occurs. Backwater flooding on Perche Creek causes flooding in McBaine. * ADDITIONAL DETAILS... - At 7:04 PM CDT Sunday the stage was 23.5 feet. - Forecast...The river is expected to rise to a crest of 23.6 feet just after midnight tonight. It will then fall below flood stage early Tuesday morning. - Flood stage is 21.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Carroll, MO; Chariton, MO; Saline, MO
Flood Warning issued October 4 at 8:21PM CDT until October 7 at 7:32AM CDT by NWS Kansas City/Pleasant Hill MO
...The Flood Warning is extended for the following rivers in Missouri... Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Sumner affecting Carroll, Chariton, Livingston and Linn Counties. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Moniteau, Cooper and Boone Counties. Missouri River at Glasgow affecting Saline, Chariton and Howard Counties. Missouri River At Miami affecting Carroll, Saline and Chariton Counties. Missouri River at Waverly affecting Carroll, Saline and Lafayette Counties. Missouri River at Napoleon affecting Lafayette, Jackson and Ray Counties. Platte River near Platte City affecting Platte County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Missouri River at Miami. * WHEN...Until Wednesday morning. * IMPACTS...At 18.0 feet, Low-lying rural areas outside of levees begin to flood. * ADDITIONAL DETAILS... - At 11:32 AM CDT Sunday the stage was 23.9 feet. - Forecast...The river is expected to fall below flood stage Tuesday morning and continue falling to 10.4 feet Friday evening. - Flood stage is 18.0 feet. - http://www.weather.gov/safety/flood
Severe
Observed
Immediate
October 4th, 2026 08:21:00 pm CDT
October 4th, 2026 08:21:00 pm CDT
October 5th, 2026 08:30:00 pm CDT
Flood Warning
Boone, MO; Callaway, MO; Cole, MO; Moniteau, MO
Flood Warning issued October 4 at 11:09AM CDT until October 7 at 1:00AM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri... Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Jefferson City. Missouri River at Hermann. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is forecast. * WHERE...Missouri River at Jefferson City. * WHEN...From Monday afternoon to late Tuesday night. * IMPACTS...At 24.5 feet, The Katy Trail Floods near Rocheport. * ADDITIONAL DETAILS... - At 10:45 AM CDT Sunday the stage was 20.5 feet. - Forecast...The river is expected to rise to a crest of 23.0 feet early tomorrow afternoon. It will then fall below flood stage tomorrow evening. - Flood stage is 23.0 feet.
Severe
Observed
Immediate
October 4th, 2026 11:09:00 am CDT
October 4th, 2026 11:09:00 am CDT
October 5th, 2026 11:15:00 pm CDT
Flood Warning
Gasconade, MO; Montgomery, MO
Flood Warning issued October 4 at 11:09AM CDT until October 7 at 2:30PM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri... Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Jefferson City. Missouri River at Hermann. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is forecast. * WHERE...Missouri River at Hermann. * WHEN...From Monday evening to Wednesday afternoon. * IMPACTS...At 21.3 feet, The southern end of School House Road south of Rhineland begins flooding near this height. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 18.2 feet. - Forecast...The river is expected to rise above flood stage tomorrow evening to a crest of 21.2 feet early Tuesday morning. It will then fall below flood stage Tuesday morning. - Flood stage is 21.0 feet.
Severe
Observed
Immediate
October 4th, 2026 11:09:00 am CDT
October 4th, 2026 11:09:00 am CDT
October 5th, 2026 11:15:00 pm CDT
Flood Warning
Callaway, MO; Osage, MO
Flood Warning issued October 4 at 11:09AM CDT until October 8 at 8:20AM CDT by NWS St Louis MO
...The Flood Warning is extended for the following rivers in Missouri... Missouri River near Chamois. ...The Flood Warning continues for the following rivers in Missouri... Missouri River at Jefferson City. Missouri River at Hermann. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is forecast. * WHERE...Missouri River near Chamois. * WHEN...From this evening to Thursday morning. * IMPACTS...At 17.0 feet, Flood Stage: Lower lying bottom land begins to flood. * ADDITIONAL DETAILS... - At 7:00 AM CDT Sunday the stage was 15.6 feet. - Forecast...The river is expected to rise above flood stage late this evening to a crest of 18.4 feet early Tuesday morning. It will then fall below flood stage Tuesday evening. - Flood stage is 17.0 feet.
Severe
Observed
Immediate
October 4th, 2026 11:09:00 am CDT
October 4th, 2026 11:09:00 am CDT
October 5th, 2026 11:15:00 pm CDT
Flood Warning
Calhoun, IL; Pike, MO
Flood Warning issued October 4 at 11:05AM CDT until October 6 at 7:00PM CDT by NWS St Louis MO
...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Clarksville. ...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Clarksville. * WHEN...Until Tuesday evening. * IMPACTS...At 25.3 feet, The road to Port Marmac, a riverside community of about 13 homes just south of Clarksville, begins flooding. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 25.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Sunday was 25.2 feet. - Forecast...The river is expected to rise to a crest of 25.1 feet this afternoon. It will then fall below flood stage early tomorrow afternoon. - Flood stage is 25.0 feet.
Severe
Observed
Immediate
October 4th, 2026 11:05:00 am CDT
October 4th, 2026 11:05:00 am CDT
October 5th, 2026 11:15:00 pm CDT
Flood Warning
Pike, IL; Pike, MO
Flood Warning issued October 4 at 11:05AM CDT until October 7 at 1:00PM CDT by NWS St Louis MO
...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Clarksville. ...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Louisiana. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Louisiana. * WHEN...Until Wednesday afternoon. * IMPACTS...At 15.0 feet, The first quarter mile of Edison Avenue beyond the railroad tracks begins flooding near this height. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday the stage was 15.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:30 AM CDT Sunday was 15.3 feet. - Forecast...The river is expected to rise to a crest of 15.3 feet this afternoon. It will then fall below flood stage Tuesday morning. - Flood stage is 15.0 feet.
Severe
Observed
Immediate
October 4th, 2026 11:05:00 am CDT
October 4th, 2026 11:05:00 am CDT
October 5th, 2026 11:15:00 pm CDT
SAFETY and DATA MESSAGE
When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.
Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Portage Des Sioux.
Use the Radar Maps link provided to understand the trajectory of a storm.
For more official information about severe storms and how to stay safe, visit the National Weather Service's Severe Thunderstorm Safety page. We encourage you to also monitor Excessive Rainfall Forecasts on their Weather Prediction Center website.