Alert archive / Missouri / Flash Flood Warnings in 2026
Flash Flood Warning 5, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Apr 2, 2026, 3:42 AM CDT for Cooper County, Missouri. It was in force for 5 hr. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 2, 2026, 3:42 AM CDT (08:42 UTC)
- Expired
- Apr 2, 2026, 9:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Cooper County, MO
The radar
The Pleasant Hill radar (KEAX), 128 km from the middle of the area, began a volume at 08:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 2, 4:30 AM CDT | FLASH FLOOD | 4 S Boonville, MO | Multiple rural roads closed from flooding. Time estimated from radar and dispatch reports. |
| Apr 2, 5:00 AM CDT | FLASH FLOOD | 2 E Pilot Grove, MO | Social media report and photo of Mile Corner Road flooded. A water rescue was also reported with a separate flooding incident around this time. |
| Apr 2, 5:15 AM CDT | FLASH FLOOD | 5 Se Lamine, MO | Water reported on Route 5 from the Petite Saline, which was out of its banks. Time estimated from social media reports and nearby gauge data. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this flash flood warning; the first came 48 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 8.7 hours before the alert went out and 242 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 384 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1511 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 81 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.0
The text
As transmitted.
254
WGUS53 KEAX 020842
FFWEAX
MOC053-021445-
/O.NEW.KEAX.FF.W.0005.260402T0842Z-260402T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
342 AM CDT Thu Apr 2 2026
The National Weather Service in Pleasant Hill MO has issued a
* Flash Flood Warning for...
Cooper County in central Missouri...
* Until 945 AM CDT Thursday.
* At 342 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1.5 and 2.5 inches of
rain have fallen. The expected rainfall rate is 1 to 1.5 inches in
1 hour. Additional rainfall amounts of 1 to 2 inches are possible
in the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Boonville, Pilot Grove, Bunceton, Prairie Home, Wooldridge and
Lamine.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3869 9299 3901 9290 3901 9289 3902 9288
3902 9287 3900 9287 3898 9285 3897 9279
3898 9272 3897 9260 3897 9256 3892 9250
3868 9262
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-1.5 INCHES IN 1 HOUR
$$
Krull1 follow-up statement
938
WGUS73 KEAX 021400
FFSEAX
Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
900 AM CDT Thu Apr 2 2026
MOC053-021410-
/O.CAN.KEAX.FF.W.0005.000000T0000Z-260402T1445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cooper MO-
900 AM CDT Thu Apr 2 2026
...FLASH FLOOD WARNING FOR COOPER COUNTY HAS BEEN REPLACED WITH A
FLOOD WARNING...
Runoff from the earlier rainfall...ranging from 1.5 to 3 inches...
will continue to produce flooding into the afternoon hours.
&&
LAT...LON 3869 9299 3901 9290 3901 9289 3902 9288
3902 9287 3900 9287 3898 9285 3897 9279
3898 9272 3897 9260 3897 9256 3892 9250
3868 9262
$$
SAWWhat forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Kansas City, MO wrote its last area forecast discussion before this flash flood warning went out at Apr 2, 1:43 AM CDT, 1 hour 59 minutes earlier. Its key messages:
- Showers and storms continue into this morning, with locally moderate to heavy rainfall possible.
- A few isolated storms may be possible this afternoon along the passing cold front, with a conditional low end risk for a strong storm or two.
- Very windy conditions are expected later this morning into this afternoon, with southwesterly winds gusting up to 35 to 40 mph.
- Severe thunderstorms will be possible Friday afternoon into Friday evening, with all severe hazards possible.
Area forecast discussion, Apr 2, 1:43 AM CDT, 1 hour 59 minutes before
Area Forecast Discussion
National Weather Service Kansas City/Pleasant Hill MO
143 AM CDT Thu Apr 2 2026
.KEY MESSAGES...
- Showers and storms continue into this morning, with locally
moderate to heavy rainfall possible.
- A few isolated storms may be possible this afternoon along the
passing cold front, with a conditional low end risk for a
strong storm or two.
- Very windy conditions are expected later this morning into
this afternoon, with southwesterly winds gusting up to 35 to
40 mph.
- Severe thunderstorms will be possible Friday afternoon into
Friday evening, with all severe hazards possible.
&&
.SHORT TERM /THROUGH FRIDAY/...
Issued at 1247 AM CDT Thu Apr 2 2026
Current H5 analysis shows the mid/upper trough axis extending
north to south across roughly the KS/CO border and into the
OK/TX Panhandles, with this trough beginning to take on a bit of
a negative tilt. At the surface, the warm front extends
eastward from the surface low across west central Kansas,
roughly along Interstate 70. Widespread showers and
thunderstorms are ongoing, but the severe threat has diminished
significantly. Significant rainfall amounts have fallen across
portions of our southern and southeastern zones, with a corridor
of roughly 4 to 6 inches from the Rich Hill area toward
Chilhowee. The surface low will move to the northeast through
the overnight hours into far NE KS by around 7 am and into far
southern Iowa by around 1 pm, with the warm front lifting
northward through the remainder of the CWA overnight tonight.
Showers and a few embedded thunderstorms should continue into
Thursday morning, coming to an end from west to east. Very
strong southwesterly winds should arrive by later this morning
out ahead of the approaching surface low and cold front, with
sustained winds on the order of 25 mph and gusts up to 40 mph
continuing into Thursday afternoon. Gusts may approach of even
exceed 45 mph toward portions of NE Missouri this afternoon, so
have issued a small wind advisory to account for this.
A few isolated showers and thunderstorms will be possible this
afternoon along the trailing cold front, especially closer to
the surface low across northern and northeastern Missouri. With
roughly 1000 J/kg of CAPE and around 40 knots of deep layer
shear, cannot rule out some better organized updrafts capable of
producing severe weather. Also, with some decent effective SRH
and right curved hodographs, there will be a non-zero tornado
threat. This has prompted SPC to included much of the CWA within
a marginal risk for severe weather this afternoon, with a small
sliver toward NE MO within a slight risk. However, 00z HREF
guidance is not particularly excited about the threat for severe
weather in our CWA this afternoon, keeping better chances
northeast of the region into eastern Iowa.
By Friday morning, a closed H5 low is projected to be centered
over eastern Wyoming, sliding into South Dakota by Friday
afternoon, with the trough axis extending southward into the
central Plains and sending a belt of 40 to 50 knot H5
southwesterly winds over the CWA. Meanwhile, at the surface, the
low should take a track not too dissimilar from the track of
the current surface low - from west central KS into far SW Iowa
by Friday evening, pulling a warm front north through the CWA
through the afternoon hours of Friday and a trailing cold front
extending to the southwest through NW Missouri into eastern KS
by around 7 PM Friday. The convective environment on Friday
afternoon across the open warm sector should be characterized by
moderate instability (2000 J/kg of ML CAPE), strong deep layer
shear (40 to 50 knots of effective bulk shear), steep mid level
lapse rates, only a modest cap at 850 mb, and substantial
effective SRH and right curving hodographs. This would support
supercells capable of all severe hazards, but that is only if
cells are able to initiate across the open warm sector. What is
more likely is storms initiating along the surface cold front by
late Friday afternoon, with storms likely growing upscale into
a line relatively quickly and becoming primarily a wind threat.
However, there will likely be embedded supercellular features
within the line, and also with 40 knots of 0-3 km shear,
mesovortices will be very much possible, especially in areas
where the shear vector becomes normal to the line. The front
should move west to east across the CWA, exiting to the east by
late Friday night. Given the likely progressive nature of the
line, think that locally heavy rainfall is unlikely on Friday.
However, if any heavy rain moves over locations that have been
impacted by heavy rain Wednesday night into early Thursday
morning, there could be some flash flooding issues.
Cooler temperatures are expected on Saturday behind the front
with gusty northwesterly winds. Warmer temperatures and calmer
winds start to ease back in by Sunday into Monday, with 30 to
40% chance for rain showers on Monday night into Tuesday
morning.
&&
.AVIATION /06Z TAFS THROUGH 06Z FRIDAY/...
Issued at 1222 AM CDT Thu Apr 2 2026
Showers with a few lightning strikes in the vicinity should
begin working their way into the terminals shortly and should by
and large continue through around 13z Thursday morning, with
reductions in VIS down to 4SM or so within the more moderate
periods of rain. The terminals remain north of the warm front at
the moment, so winds remain out of the east. However, the front
should lift northward overnight, with winds turning southerly
and then southwesterly. Wind speeds should increase
considerably, with sustained winds on the order of 20 to 25
knots and gusts up to 35 knots from roughly 13z to 21z Thursday.
Winds should finally relax entirely by around 00z Friday. IFR
CIGs should improve to MVFR by around 13z and to VFR by around
16z Thursday.
&&
.EAX WATCHES/WARNINGS/ADVISORIES...
MO...Flood Watch through this afternoon for MOZ017-021>025-028>033-
037>040-043>046-053-054.
KS...Flood Watch through this afternoon for KSZ057-060-103>105.
&&
DISCUSSION...BMW
AVIATION...BMWHazardous weather outlook, Apr 1, 5:08 AM CDT, 22 hours 34 minutes before
Hazardous Weather Outlook National Weather Service Kansas City/Pleasant Hill MO 0508 AM CDT Wed Apr 01 2026 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-021008- Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS- Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler- Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton- Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton- Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis- Cooper-Bates-Henry- 0508 AM CDT Wed Apr 01 2026 This hazardous weather outlook is for northwest...north central and west central Missouri...as well as extreme eastern Kansas. .DAY ONE...Through tonight. Please go to https://weather.gov/media/eax/DssPacket.pdf for more information on potential weather hazards. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. Please go to https://weather.gov/media/eax/DssPacket.pdf for more information on potential weather hazards. .KEY MESSAGES... - Scattered to widespread showers and storms are likely (50 to 80%) through early Wednesday morning. - Periods of showers and thunderstorms are expected (90 to 100%) Wednesday afternoon into Thursday morning. Locally heavy rainfall will be possible. Strong to severe storms are possible Wednesday afternoon into Wednesday night. - Another round of showers and storms are likely (60 to 90%) Friday afternoon into Saturday morning. Strong to severe storms will be possible once again. - Total rainfall amounts of 2 to 4 inches are likely across the region by Saturday, with isolated higher amounts possible.
In the hours before
Special weather statement, Apr 2, 12:33 AM CDT, 3 hours 9 minutes before
Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
1233 AM CDT Thu Apr 2 2026
MOZ053-054-020600-
Bates MO-Henry MO-
1233 AM CDT Thu Apr 2 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN HENRY AND
SOUTHEASTERN BATES COUNTIES THROUGH 100 AM CDT...
At 1233 AM CDT, Doppler radar was tracking a strong thunderstorm near
Appleton City, or 17 miles east of Rich Hill, moving northeast at 40
mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Deepwater, Montrose, Rockville, and La Due.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3805 9410 3804 9411 3806 9413 3805 9415
3815 9425 3843 9397 3821 9370 3821 9405
3803 9406 3803 9409
TIME...MOT...LOC 0533Z 223DEG 34KT 3815 9405
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
KrullLocal storm report, Apr 2, 12:42 AM CDT, 3 hours before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1242 AM CDT Thu Apr 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1225 AM Flash Flood 5 W Montrose 38.26N 94.08W
04/02/2026 Bates MO Dept of Highways
Flash flooding reported on Route H. Route H
closed from Route KK to Route BB.
&&
EACSpecial weather statement, Apr 2, 12:49 AM CDT, 2 hours 53 minutes before
Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
1249 AM CDT Thu Apr 2 2026
MOZ054-020615-
Henry MO-
1249 AM CDT Thu Apr 2 2026
...A STRONG THUNDERSTORM WILL IMPACT HENRY COUNTY THROUGH 115 AM
CDT...
At 1249 AM CDT, Doppler radar was tracking a strong thunderstorm near
Montrose, or 8 miles southwest of Clinton, moving northeast at 50
mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Clinton, Windsor, Calhoun, Deepwater, Coal, Brownington, La Due, and
Truman Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3832 9402 3856 9379 3856 9352 3855 9351
3843 9351 3837 9352 3821 9371 3821 9390
TIME...MOT...LOC 0549Z 220DEG 42KT 3832 9390
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
KrullLocal storm report, Apr 2, 1:18 AM CDT, 2 hours 24 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
118 AM CDT Thu Apr 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0100 AM Flash Flood Calhoun 38.47N 93.63W
04/02/2026 Henry MO Public
Social media report of flash flooding on
Route 52 between Calhoun and Clinton, with
multiple low-lying spots inundated.
&&
CMSLocal storm report, Apr 2, 1:20 AM CDT, 2 hours 22 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
120 AM CDT Thu Apr 2 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0115 AM Flash Flood 4 ENE Sumner 39.67N 93.18W
04/02/2026 Chariton MO Broadcast Media
Flash flooding reported on Route 139, south
of Route TT. Water over the road.
&&
EACSpecial weather statement, Apr 2, 2:11 AM CDT, 1 hour 31 minutes before
Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
211 AM CDT Thu Apr 2 2026
MOZ053-054-020745-
Bates MO-Henry MO-
211 AM CDT Thu Apr 2 2026
...A STRONG THUNDERSTORM WILL IMPACT WESTERN HENRY AND SOUTHEASTERN
BATES COUNTIES THROUGH 245 AM CDT...
At 211 AM CDT, Doppler radar was tracking a strong thunderstorm near
Appleton City, or 15 miles east of Rich Hill, moving northeast at 55
mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Clinton, Urich, Deepwater, Montrose, Rockville, Hartwell, and La Due.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3805 9410 3804 9412 3806 9413 3805 9415
3809 9425 3853 9399 3836 9368 3821 9383
3821 9405 3803 9406 3803 9409
TIME...MOT...LOC 0711Z 211DEG 49KT 3815 9409
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
KrullThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 7:45 PM CDT | Special Weather Statement | EAX | Johnson | 30 min |
| Apr 1, 8:01 PM CDT | Areal Flood Advisory | EAX | Bates, Cass, Henry, Johnson | 70 min |
| Apr 1, 8:08 PM CDT | Special Weather Statement | EAX | Cooper | 37 min |
| Apr 1, 8:27 PM CDT | Areal Flood Advisory | EAX | Cooper | 7 hr |
| Apr 1, 8:38 PM CDT | Special Weather Statement | EAX | Bates | 37 min |
| Apr 1, 8:41 PM CDT | Special Weather Statement | EAX | Henry | 34 min |
| Apr 1, 9:04 PM CDT | Severe Thunderstorm Warning | EAX | Henry | 41 min |
| Apr 1, 9:11 PM CDT | Flash Flood Warning | EAX | Bates, Cass, Henry, Johnson | 6 hr |
| Apr 1, 9:41 PM CDT | Areal Flood Advisory | EAX | Cass, Jackson, Johnson | 5 hr |
| Apr 1, 9:49 PM CDT | Special Weather Statement | EAX | Pettis | 26 min |
| Apr 1, 9:50 PM CDT | Areal Flood Advisory | EAX | Henry, Johnson, Pettis | 4 hr |
| Apr 1, 10:11 PM CDT | Severe Thunderstorm Warning | EAX | Henry | 49 min |
| Apr 1, 11:02 PM CDT | Special Weather Statement | EAX | Pettis | 28 min |
| Apr 1, 11:12 PM CDT | Flash Flood Warning | EAX | Cooper, Henry, Johnson, Lafayette, Pettis, Saline | 6 hr |
| Apr 1, 11:12 PM CDT | Special Weather Statement | EAX | Pettis | 33 min |
| Apr 1, 11:33 PM CDT | Flash Flood Warning | EAX | Bates, Cass, Henry, Johnson | 3 hr |
| Apr 1, 11:39 PM CDT | River Flood Warning | EAX | Bates, Cass, Henry | 41 hr |
| Apr 2, 12:08 AM CDT | Special Weather Statement | EAX | Bates | 37 min |
| Apr 2, 12:33 AM CDT | Special Weather Statement | EAX | Henry | 27 min |
| Apr 2, 12:49 AM CDT | Special Weather Statement | EAX | Henry | 26 min |
| Apr 2, 1:25 AM CDT | Areal Flood Advisory | EAX | Carroll, Chariton, Cooper, Howard, Linn, Macon and 2 more | 34 hr |
| Apr 2, 2:11 AM CDT | Special Weather Statement | EAX | Henry | 34 min |
| Apr 2, 2:55 AM CDT | Areal Flood Warning | EAX | Bates, Cass, Henry, Jackson, Johnson | 33 hr |
| Apr 2, 3:22 AM CDT | Wind Advisory | EAX | Adair, Chariton, Linn, Macon, Randolph, Schuyler and 1 more | 16 hr |
| Apr 2, 4:33 AM CDT | River Flood Warning | EAX | Howard | 20 hr |
| Apr 2, 5:16 AM CDT | Areal Flood Warning | EAX | Cooper, Henry, Johnson, Lafayette, Pettis, Saline | 31 hr |
| Apr 2, 7:16 AM CDT | River Flood Warning | EAX | Carroll | 33 hr |
| Apr 2, 9:00 AM CDT | Areal Flood Warning | EAX | Cooper | 27 hr |
| Apr 2, 1:31 PM CDT | Severe Thunderstorm Warning | EAX | Harrison, Mercer | 29 min |
| Apr 2, 2:16 PM CDT | Severe Thunderstorm Warning | EAX | Mercer | 29 min |
| Apr 2, 2:42 PM CDT | Severe Thunderstorm Warning | EAX | Mercer, Putnam | 18 min |
| Apr 2, 2:56 PM CDT | Severe Thunderstorm Warning | EAX | Mercer, Putnam | 49 min |
Nearby
Flash Flood Warnings in Missouri, 2026Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.