Alert archive / Missouri / River Flood Warnings in 2026
River Flood Warning 45, NWS St. Louis, MO
NWS St. Louis, MO issued this river flood warning at Apr 27, 2026, 3:53 PM CDT for Lincoln County, Missouri. It took effect at Apr 27, 2026, 11:00 PM CDT. It was in force for 3 days.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2026, 3:53 PM CDT (20:53 UTC)
- In effect from
- Apr 27, 2026, 11:00 PM CDT
- Expired
- May 1, 2026, 4:33 AM CDT
- In force
- 3 days
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- Minor
County Lincoln County, MO
The radar
The St Louis radar (KLSX), 25 km from the middle of the area, began a volume at 20:55 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Cuivre River at Old Monroe (OMNM7).
- Action stage
- 22 ft
- Minor stage
- 24 ft
- Moderate stage
- 27 ft
- Major stage
- 30 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05514705, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
915
WGUS43 KLSX 272053
FLWLSX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
353 PM CDT Mon Apr 27 2026
...The National Weather Service in St Louis has issued a Flood
Warning for the following rivers in Missouri...
Cuivre River at Old Monroe.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Rainfall heavier than forecast could cause river levels to rise even
higher than predicted. The National Weather Service will monitor this
developing situation and issue follow up statements as conditions
change.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC113-290900-
/O.NEW.KLSX.FL.W.0045.260428T0400Z-260503T0900Z/
/OMNM7.1.ER.260428T0400Z.260429T1800Z.260501T2100Z.NO/
353 PM CDT Mon Apr 27 2026
...FLOOD WARNING IN EFFECT FROM THIS EVENING TO LATE SATURDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Cuivre River at Old Monroe.
* WHEN...From this evening to late Saturday night.
* IMPACTS...At 24.5 feet, Extensive left bank agricultural flooding
develops upstream of the gage. A utility road is flooded along the
Old Monroe levee along the left bank upstream of the gage.
* ADDITIONAL DETAILS...
- At 3:30 PM CDT Monday the stage was 23.5 feet.
- Forecast...The river is expected to rise above flood stage late
this evening to a crest of 24.6 feet early Wednesday afternoon.
It will then fall below flood stage Friday afternoon.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Cuivre River
Old Monroe 24.0 23.5 24.2 24.5 24.5 24.2 23.6
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
Fuchs7 follow-up statements
773
WGUS83 KLSX 281657
FLSLSX
Flood Statement
National Weather Service St Louis MO
1157 AM CDT Tue Apr 28 2026
...The Flood Warning is extended for the following rivers in
Missouri...
Cuivre River at Old Monroe.
Cuivre River near Troy.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC113-300500-
/O.EXT.KLSX.FL.W.0045.000000T0000Z-260503T2000Z/
/OMNM7.1.ER.260427T2331Z.260430T0000Z.260502T0800Z.NO/
1157 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Cuivre River at Old Monroe.
* WHEN...Until Sunday afternoon.
* IMPACTS...At 24.5 feet, Extensive left bank agricultural flooding
develops upstream of the gage. A utility road is flooded along the
Old Monroe levee along the left bank upstream of the gage.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 25.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Tuesday was 25.1 feet.
- Forecast...The river is expected to rise to a crest of 25.5 feet
tomorrow evening. It will then fall below flood stage early
Saturday morning.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Cuivre River
Old Monroe 24.0 25.1 25.3 25.4 24.7 23.8 22.8
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
MOC113-300500-
/O.EXT.KLSX.FL.W.0044.000000T0000Z-260430T0808Z/
/TRYM7.1.ER.000000T0000Z.260428T1800Z.260429T0208Z.NO/
1157 AM CDT Tue Apr 28 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE WEDNESDAY NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Cuivre River near Troy.
* WHEN...Until late Wednesday night.
* IMPACTS...At 23.0 feet, Considerable agricultural land is flooded
between Troy and Moscow Mills.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Tuesday the stage was 22.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Tuesday was 22.7 feet.
- Forecast...The river is expected to rise to a crest of 22.8 feet
this afternoon. It will then fall below flood stage late this
evening.
- Flood stage is 21.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Cuivre River
Troy 21.0 22.0 16.1 11.0 8.7 8.0 7.7
&&
LAT...LON 3901 9106 3906 9100 3903 9098 3903 9095
3897 9089 3894 9083 3889 9079 3886 9080
3886 9087 3890 9087 3893 9093 3899 9098
$$
Fuchs077
WGUS83 KLSX 290147
FLSLSX
Flood Statement
National Weather Service St Louis MO
847 PM CDT Tue Apr 28 2026
...The Flood Warning continues for the following rivers in
Missouri...
Cuivre River at Old Monroe.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC113-301400-
/O.CON.KLSX.FL.W.0045.000000T0000Z-260503T2000Z/
/OMNM7.1.ER.260427T2331Z.260430T0000Z.260502T0800Z.NO/
847 PM CDT Tue Apr 28 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Cuivre River at Old Monroe.
* WHEN...Until Sunday afternoon.
* IMPACTS...At 24.5 feet, Extensive left bank agricultural flooding
develops upstream of the gage. A utility road is flooded along the
Old Monroe levee along the left bank upstream of the gage.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Tuesday the stage was 25.3 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:30 PM CDT Tuesday was 25.3 feet.
- Forecast...The river is expected to rise to a crest of 25.7 feet
tomorrow evening. It will then fall below flood stage early
Saturday morning.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Cuivre River
Old Monroe 24.0 25.3 25.5 24.7 23.8 22.8 21.8
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
Jaja719
WGUS83 KLSX 291735
FLSLSX
Flood Statement
National Weather Service St Louis MO
1235 PM CDT Wed Apr 29 2026
...The Flood Warning continues for the following rivers in
Missouri...
Cuivre River at Old Monroe.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC113-010545-
/O.EXT.KLSX.FL.W.0045.000000T0000Z-260503T0300Z/
/OMNM7.1.ER.260427T2331Z.260429T0830Z.260501T1500Z.NO/
1235 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Cuivre River at Old Monroe.
* WHEN...Until Saturday evening.
* IMPACTS...At 24.5 feet, Extensive left bank agricultural flooding
develops upstream of the gage. A utility road is flooded along the
Old Monroe levee along the left bank upstream of the gage.
* ADDITIONAL DETAILS...
- At 11:30 AM CDT Wednesday the stage was 25.0 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 11:30 AM CDT Wednesday was 25.4 feet.
- Forecast...The river is expected to rise to a crest of 25.1 feet
this afternoon. It will then fall below flood stage late Friday
morning.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Thu Fri Sat Sun Mon
Cuivre River
Old Monroe 24.0 25.0 24.8 24.1 23.2 22.2 21.3
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
19492
WGUS83 KLSX 300110
FLSLSX
Flood Statement
National Weather Service St Louis MO
810 PM CDT Wed Apr 29 2026
...The Flood Warning continues for the following rivers in
Missouri...
Cuivre River at Old Monroe.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC113-011315-
/O.EXT.KLSX.FL.W.0045.000000T0000Z-260502T1800Z/
/OMNM7.1.ER.260427T2331Z.260429T0830Z.260501T0600Z.NO/
810 PM CDT Wed Apr 29 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Cuivre River at Old Monroe.
* WHEN...Until Saturday afternoon.
* IMPACTS...At 24.5 feet, Extensive left bank agricultural flooding
develops upstream of the gage. A utility road is flooded along the
Old Monroe levee along the left bank upstream of the gage.
* ADDITIONAL DETAILS...
- At 7:30 PM CDT Wednesday the stage was 24.7 feet and falling.
- Recent Activity...The river rose above flood stage on April 27,
cresting near 25.4 feet on the morning of April 29.
- Forecast...The river is expected to fall below flood stage early
Friday morning and continue falling over the coming days.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Cuivre River
Old Monroe 24.0 24.7 23.9 23.0 22.0 20.9 19.9
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
Kimble388
WGUS83 KLSX 301628
FLSLSX
Flood Statement
National Weather Service St Louis MO
1128 AM CDT Thu Apr 30 2026
...The Flood Warning is extended for the following rivers in
Missouri...
Cuivre River at Old Monroe.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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
&&
MOC113-020430-
/O.EXT.KLSX.FL.W.0045.000000T0000Z-260503T0000Z/
/OMNM7.1.ER.260427T2331Z.260429T0830Z.260501T1200Z.NO/
1128 AM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Cuivre River at Old Monroe.
* WHEN...Until Saturday evening.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Thursday the stage was 24.3 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 AM CDT Thursday was 25.0 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow morning.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Cuivre River
Old Monroe 24.0 24.3 24.0 23.2 22.4 21.3 20.2
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
19396
WGUS83 KLSX 010219
FLSLSX
Flood Statement
National Weather Service St Louis MO
919 PM CDT Thu Apr 30 2026
...The Flood Warning continues for the following rivers in
Missouri...
Cuivre River at Old Monroe.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC113-021430-
/O.EXT.KLSX.FL.W.0045.000000T0000Z-260502T1800Z/
/OMNM7.1.ER.260427T2331Z.260429T0830Z.260501T0600Z.NO/
919 PM CDT Thu Apr 30 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Cuivre River at Old Monroe.
* WHEN...Until Saturday afternoon.
* IMPACTS...At 24.0 feet, Initial flooding upstream.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Thursday the stage was 24.1 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 8:30 PM CDT Thursday was 24.6 feet.
- Forecast...The river is expected to fall below flood stage just
after midnight tonight and continue falling to 18.0 feet
Thursday, May 07.
- Flood stage is 24.0 feet.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Cuivre River
Old Monroe 24.0 24.1 22.9 21.9 20.8 19.7 18.8
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
Maples327
WGUS83 KLSX 010933 RRA
FLSLSX
Flood Statement
National Weather Service St Louis MO
433 AM CDT Fri May 1 2026
...The Flood Warning is cancelled for the following rivers in
Missouri...
Cuivre River at Old Monroe.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
MOC113-011045-
/O.CAN.KLSX.FL.W.0045.000000T0000Z-260501T0933Z/
/OMNM7.1.ER.260427T2331Z.260429T0830Z.260501T0400Z.NO/
433 AM CDT Fri May 1 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Cuivre River at Old Monroe.
* ADDITIONAL DETAILS...
- At 3:30 AM CDT Friday the stage was 23.9 feet.
- Forecast...The river is expected to fall to 17.9 feet Friday, May
08.
&&
All Times CDT Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Cuivre River
Old Monroe 24.0 23.9 22.9 21.9 20.8 19.7 18.8
&&
LAT...LON 3889 9079 3892 9081 3894 9077 3895 9068
3891 9067 3890 9074
$$
ElmoreWhat forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this river flood warning went out at Apr 27, 6:47 AM CDT, 9 hours 6 minutes earlier. Its key messages:
- While periods of storms are expected through Monday morning, the most potent thunderstorms will occur this afternoon and evening.
- Thunderstorms this afternoon and evening will be capable of damaging wind gusts, large hail, and strong tornadoes.
- A period of cool, calm weather is expected mid-week through the weekend.
Area forecast discussion, Apr 27, 6:47 AM CDT, 9 hours 6 minutes before
Area Forecast Discussion...Updated Aviation National Weather Service Saint Louis MO 647 AM CDT Mon Apr 27 2026 .KEY MESSAGES... - While periods of storms are expected through Monday morning, the most potent thunderstorms will occur this afternoon and evening. - Thunderstorms this afternoon and evening will be capable of damaging wind gusts, large hail, and strong tornadoes. - A period of cool, calm weather is expected mid-week through the weekend. && .SHORT TERM... (Through Tuesday Night) Issued at 155 AM CDT Mon Apr 27 2026 Storms across southeastern Missouri continue to butt up against an instability gradient draped from north to south across Missouri. The warm air advection feeding these storms will also push greater instability slowly northeastward through this morning, though propagation vectors will favor convection continuing to move east- southeastward generally away from the CWA or into an unfavorable environment. Additionally, the low-level jet refocusing across Kansas will continue to support the downward trend in convection across southeastern Missouri early this morning. Any linger storms over the next couple of hours will be capable mainly of large hail, though there is also a very low damaging wind and tornado threat for storms that remain surface based. Our attention turns to the storms over eastern Kansas that are propagating eastward with the nose of the low-level jet. With the nose of this low-level jet edging into northeastern Missouri later this morning, the focus for these storms will spread into portions of the CWA north of I-70. Vertical thermal profiles suggest that this convection will be elevated, mitigating a threat of damaging wind gusts and/or tornadoes. However, with around 40 kts of effective shear and building MUCAPE, there is a low chance for isolated instances of large hail. How long this convection lingers is uncertain, although guidance trends have been toward a lull in convective activity in the wake of this convection and that associated with a cold front during the late afternoon and evening. Ahead of the front, the warm sector remains capped through much of the afternoon per a majority of deterministic soundings. Although, any remnant outflow or differential heating boundary from early day convection may serve as enough of a forcing mechanism to spawn discrete convection during the afternoon as lift from an approaching shortwave increases over the region. If this convection does form, it will be in an environment characterized by 2,000-2,500 J/kg of SBCAPE and roughly 50 kts of deep-layer shear. This will favor supercells capable of all hazards, with long curved hodographs favoring strong tornadoes, especially if storms are able to latch on to any remnant boundaries across the CWA. Where the environment isn't contaminated from earlier rounds of convection, additional updrafts are expected along the cold front as it enters the area 4-5pm. Forcing from the front paired with lift from the shortwave will lead to numerous updrafts along the front. While this will be occurring within a similar environment detailed prior, the number of updrafts paired with them occurring along the front may lead to destructive interactions and congealing into line segments and/or clusters. While this will tend to limit a strong tornado threat, storms will still be capable of all severe hazards. Convection is expected to depart the CWA with the front by 9-10pm. Even with the FROPA Monday evening, the threat for convection will continue on Tuesday. Guidance consensus has the front stalling just south of the CWA early Tuesday and then buckling northward as a shortwave moves through the Central Plains and into the Midwest through the day. This shortwave will send a subtle surface reflection through the Mid South along the front, with a brief period of warm air advection that will help force elevated convection for areas mainly along and south of I-70. If the front can move northward enough, shear profiles and instability amounts favor supercells capable primarily of large hail across far southeastern Missouri during the afternoon. Waning instability and the front continuing southward will bring an end to rain chances during the evening. Elmore && .LONG TERM... (Tuesday Night through Sunday) Issued at 155 AM CDT Mon Apr 27 2026 Both deterministic guidance and ensemble clusters keep upper-level troughing slowly moving eastward over the eastern CONUS through the long range forecast period. This will maintain northwesterly flow over the Middle Mississippi Valley through Saturday as several rounds of high pressure pass through the region. As a result, temperatures will run at or below climatological normals into the weekend and mostly dry weather is expected. Elmore && .AVIATION... (For the 12z TAFs through 12z Tuesday Morning) Issued at 647 AM CDT Mon Apr 27 2026 Thunderstorms are expected at times throughout the day, impacting all terminals. The greatest coverage of thunderstorms this morning is expected to be across central, northeastern MO into west-central IL impacting KCOU, KJEF, and KUIN, with lower confidence in thunderstorms reaching the St. Louis metro terminals through early afternoon. Another round of redevelopment will take place this afternoon and evening with the greatest chance of severe thunderstorms as well. These thunderstorms will be capable of hail, strong winds, and some tornadoes. Trends will need to be monitored for more significant terminal impacts beyond MVFR to IFR flight conditions. A cold front will pass through the region this evening, veering southerly winds to northwesterly with drier conditions prevailing. There is the potential for some post-frontal MVFR ceilings late tonight into Tuesday morning, with the highest chance of impacts at KUIN. However, given that confidence is low in impacts before the end of the TAF period, VFR flight conditions are maintained for now. Pfahler && .LSX WATCHES/WARNINGS/ADVISORIES... MO...None. IL...None. && WFO LSX
Hazardous weather outlook, Apr 27, 2:02 AM CDT, 13 hours 51 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 202 AM CDT Mon Apr 27 2026 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-280715- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 202 AM CDT Mon Apr 27 2026 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. Periods of thunderstorms are expected through the day into this evening. Thunderstorms this afternoon and evening will be capable of large hail, damaging wind gusts, and tornadoes. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a chance of thunderstorms Tuesday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report wind damage, hail occurrence and size, and tornado occurrence to NWS St. Louis. Elmore
In the hours before
Local storm report, Apr 27, 3:11 PM CDT, 42 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
311 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0300 PM Tstm Wnd Dmg 5 W Winfield 38.99N 90.83W
04/27/2026 Lincoln MO Emergency Mngr
Power lines down on Ethlyn Rd.
&&Local storm report, Apr 27, 3:12 PM CDT, 41 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
312 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0305 PM Hail Old Monroe 38.93N 90.75W
04/27/2026 M0.70 Inch Lincoln MO Public
&&Local storm report, Apr 27, 3:24 PM CDT, 29 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
324 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0245 PM Flash Flood 1 ENE Coalton 39.29N 89.29W
04/27/2026 Montgomery IL Public
Flooded roads outside of Nokomis on E 23rd
Rd.
&&
CarneyLocal storm report, Apr 27, 3:30 PM CDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
330 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0256 PM Hail Moscow Mills 38.95N 90.92W
04/27/2026 M1.00 Inch Lincoln MO Public
&&
CarneyLocal storm report, Apr 27, 3:51 PM CDT, 2 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
351 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0351 PM Hail 2 WSW Mexico 39.16N 91.91W
04/27/2026 E0.88 Inch Audrain MO Public
&&Local storm report, Apr 27, 3:52 PM CDT, 1 minute before
Preliminary Local Storm Report
National Weather Service St Louis MO
352 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0319 PM Hail 5 NE Columbia 39.01N 92.28W
04/27/2026 E1.00 Inch Boone MO Public
Report from mPING: Quarter (1.00 in.).
&&The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 8:43 PM CDT | Tornado Warning | LSX | Boone, Callaway, Cole, Moniteau | 30 min |
| Apr 26, 10:08 PM CDT | Tornado Warning | LSX | Osage | 13 min |
| Apr 27, 1:06 AM CDT | Severe Thunderstorm Warning | LSX | Crawford | 39 min |
| Apr 27, 2:10 AM CDT | Areal Flood Advisory | LSX | Crawford | 3 hr |
| Apr 27, 2:44 AM CDT | Severe Thunderstorm Warning | LSX | Washington | 31 min |
| Apr 27, 3:08 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois, Washington | 52 min |
| Apr 27, 3:36 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois | 39 min |
| Apr 27, 3:41 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 49 min |
| Apr 27, 4:02 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve | 24 min |
| Apr 27, 6:52 AM CDT | Severe Thunderstorm Warning | LSX | Knox, Shelby | 38 min |
| Apr 27, 7:35 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Monroe, Shelby | 55 min |
| Apr 27, 7:54 AM CDT | Tornado Warning | LSX | Monroe, Ralls | 51 min |
| Apr 27, 8:10 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Lincoln, Marion, Pike, Ralls | 65 min |
| Apr 27, 8:24 AM CDT | Tornado Warning | LSX | Pike, Ralls | 51 min |
| Apr 27, 10:09 AM CDT | River Flood Warning | LSX | Osage | 24 hr |
| Apr 27, 10:41 AM CDT | Flash Flood Warning | LSX | Boone, Cole, Moniteau | 3 hr |
| Apr 27, 11:18 AM CDT | Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Franklin, Gasconade and 10 more | 10 hr |
| Apr 27, 11:48 AM CDT | Flash Flood Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau, Montgomery and 1 more | 3 hr |
| Apr 27, 12:09 PM CDT | Areal Flood Advisory | LSX | Lincoln, Pike, Warren | 3 hr |
| Apr 27, 12:27 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis, City of Saint Louis | 48 min |
| Apr 27, 1:25 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis | 37 min |
| Apr 27, 1:51 PM CDT | Areal Flood Advisory | LSX | Montgomery, Warren | 3 hr |
| Apr 27, 1:55 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 45 min |
| Apr 27, 2:01 PM CDT | Tornado Warning | LSX | City of Saint Louis | 27 min |
| Apr 27, 2:05 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike, Warren | 40 min |
| Apr 27, 2:13 PM CDT | Areal Flood Advisory | LSX | Saint Louis, City of Saint Louis | 3 hr |
| Apr 27, 2:39 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 51 min |
| Apr 27, 2:42 PM CDT | River Flood Warning | LSX | Monroe | 20 hr |
| Apr 27, 2:49 PM CDT | Tornado Warning | LSX | Saint Charles, Warren | 41 min |
| Apr 27, 2:54 PM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 6 days |
| Apr 27, 2:57 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Moniteau | 48 min |
| Apr 27, 3:05 PM CDT | River Flood Warning | LSX | Perry, Sainte Genevieve | 8 days |
| Apr 27, 3:14 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 46 min |
| Apr 27, 3:19 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 41 min |
| Apr 27, 3:25 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway | 42 min |
| Apr 27, 3:37 PM CDT | Flash Flood Warning | LSX | Boone | 5 hr |
| Apr 27, 3:39 PM CDT | River Flood Warning | LSX | Lewis | 11 hr |
| Apr 27, 3:41 PM CDT | River Flood Warning | LSX | Lincoln | 24 hr |
| Apr 27, 3:41 PM CDT | Tornado Warning | LSX | Audrain, Callaway | 49 min |
| Apr 27, 3:43 PM CDT | Severe Thunderstorm Warning | LSX | Boone | 62 min |
| Apr 27, 3:46 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Pike, Ralls | 44 min |
| Apr 27, 3:46 PM CDT | Tornado Warning | LSX | Boone | 14 min |
| Apr 27, 3:59 PM CDT | River Flood Warning | LSX | Crawford, Washington | 18 hr |
| Apr 27, 4:00 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Callaway, Moniteau | 60 min |
| Apr 27, 4:07 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Pike, Ralls | 53 min |
| Apr 27, 4:09 PM CDT | Tornado Warning | LSX | Audrain, Montgomery, Pike, Ralls | 51 min |
| Apr 27, 4:13 PM CDT | Flash Flood Warning | LSX | Audrain | 5 hr |
| Apr 27, 4:29 PM CDT | Tornado Warning | LSX | Boone, Callaway, Cole, Moniteau | 46 min |
| Apr 27, 4:34 PM CDT | Tornado Warning | LSX | Marion | 29 min |
| Apr 27, 4:35 PM CDT | Flash Flood Warning | LSX | Monroe | 5 hr |
| Apr 27, 4:46 PM CDT | Tornado Warning | LSX | Pike | 44 min |
| Apr 27, 4:52 PM CDT | Flash Flood Warning | LSX | Marion, Ralls | 4 hr |
| Apr 27, 4:54 PM CDT | Tornado Warning | LSX | Audrain, Pike | 21 min |
| Apr 27, 4:57 PM CDT | River Flood Warning | LSX | Callaway, Osage | 4 days |
| Apr 27, 4:57 PM CDT | River Flood Warning | LSX | Gasconade, Montgomery | 3 days |
| Apr 27, 4:57 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike | 63 min |
| Apr 27, 5:00 PM CDT | Tornado Warning | LSX | Pike | 30 min |
| Apr 27, 5:04 PM CDT | River Flood Warning | LSX | Marion | 22 hr |
| Apr 27, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Callaway | 19 min |
| Apr 27, 5:14 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 61 min |
| Apr 27, 5:20 PM CDT | Flash Flood Warning | LSX | Pike, Ralls | 3 hr |
| Apr 27, 5:21 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 39 min |
| Apr 27, 5:32 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 43 min |
| Apr 27, 5:47 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 58 min |
| Apr 27, 5:55 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 50 min |
| Apr 27, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Franklin, Washington | 48 min |
| Apr 27, 5:59 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles | 46 min |
| Apr 27, 6:09 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 36 min |
| Apr 27, 6:26 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson | 64 min |
| Apr 27, 6:28 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 47 min |
| Apr 27, 6:31 PM CDT | Tornado Warning | LSX | Franklin, Jefferson, Washington | 59 min |
| Apr 27, 6:40 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis | 48 min |
| Apr 27, 6:41 PM CDT | Tornado Warning | LSX | Saint Charles, Saint Louis | 32 min |
| Apr 27, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 45 min |
Nearby
River Flood Warnings in Missouri, 2026Every river flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.