Alert archive / Missouri / River Flood Warnings in 2026

River Flood Warning 9, NWS Kansas City, MO

March 11, 2026Cass County, Henry County, Johnson County, Missouri

NWS Kansas City, MO issued this river flood warning at Mar 11, 2026, 3:37 PM CDT for Cass County, Henry County, Johnson County, Missouri. It took effect at Mar 12, 2026, 1:00 AM CDT. It was in force for 32 hr.

The area

The counties it named.

The facts

Issued: Mar 11, 2026, 3:37 PM CDT (20:37 UTC)
In effect from: Mar 12, 2026, 1:00 AM CDT
Expired: Mar 13, 2026, 8:31 AM CDT
In force: 32 hr
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Flood severity: Minor

Counties Cass County, MO, Henry County, MO, Johnson County, MO

The radar

The Pleasant Hill radar (KEAX), 34 km from the middle of the area, began a volume at 20:38 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 Big Creek near Blairstown (BLRM7).

Action stage: 15 ft
Minor stage: 20 ft
Moderate stage: 23 ft
Major stage: 36 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06921720, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What 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 Kansas City, MO wrote its last area forecast discussion before this river flood warning went out at Mar 11, 2:46 PM CDT, 51 minutes earlier.

Area forecast discussion, Mar 11, 2:46 PM CDT, 51 minutes before

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Hazardous weather outlook, Mar 11, 5:06 AM CDT, 10 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
0506 AM CDT Wed Mar 11 2026

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-121006-
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-
0506 AM CDT Wed Mar 11 2026

This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.

.DAY ONE...Through tonight.

There is a low probability of widespread hazardous weather.

.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...

- Additional Showers This Morning

- Elevated Fire Weather Concerns Thursday

- Next Precipitation System Sunday

In the hours before

Local storm report, Mar 11, 11:28 AM CDT, 4 hours 9 minutes before

Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1128 AM CDT Wed Mar 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0749 PM     Hail             2 W Browning            40.03N 93.21W
03/10/2026  M1.00 Inch       Linn               MO   Public

            Social media report. Time estimated from
            radar.

&&

CMS

Local storm report, Mar 11, 11:33 AM CDT, 4 hours 4 minutes before

Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1133 AM CDT Wed Mar 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0634 PM     Hail             1 W Maywood             39.13N 94.83W
03/10/2026  E1.75 Inch       Wyandotte          KS   Public

            Social media report and photos. Damage to
            several vehicles. Time estimated from radar.

0716 PM     Hail             4 NNW Pleasant Valley   39.27N 94.51W
03/10/2026  E1.25 Inch       Clay               MO   Public

            Social media report and photos. Time
            confirmed from radar.

&&

CMS

Local storm report, Mar 11, 12:10 PM CDT, 3 hours 27 minutes before

Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1210 PM CDT Wed Mar 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0920 PM     Tstm Wnd Dmg     3 NNE Richmond          39.32N 93.96W
03/10/2026                   Ray                MO   Utility Company

            Downed wires near Derstier Road. Time
            estimated from radar.

0948 PM     Hail             7 E Macon               39.75N 92.33W
03/10/2026  E1.00 Inch       Macon              MO   Public

            Social media report of quarter size hail
            between Macon and Clarence. Time estimated
            from radar.

&&

CMS

Local storm report, Mar 11, 12:15 PM CDT, 3 hours 22 minutes before

Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1215 PM CDT Wed Mar 11 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1058 PM     Tstm Wnd Dmg     Parker                  38.33N 94.99W
03/10/2026                   Linn               KS   Public

            Social media report of strong winds causing
            minor property damage to a house near
            Parker. Time estimated from radar.

1137 PM     Tstm Wnd Dmg     2 NW Rich Hill          38.11N 94.38W
03/10/2026                   Bates              MO   Public

            Public report of a downed tree and minor
            property damage at a residence near Rich
            Hill. Time estimated from radar.

&&

CMS

Local storm report, Mar 11, 12:22 PM CDT, 3 hours 15 minutes before

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Local storm report, Mar 11, 2:52 PM CDT, 45 minutes before

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The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 10, 7:10 PM CDT	Tornado Warning	EAX	Caldwell, Ray	9 min
Mar 10, 7:15 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Clay, Clinton, Daviess, Jackson and 3 more	45 min
Mar 10, 7:16 PM CDT	Tornado Warning	EAX	Clay, Jackson, Ray	15 min
Mar 10, 7:33 PM CDT	Severe Thunderstorm Warning	EAX	Schuyler	21 min
Mar 10, 7:42 PM CDT	Severe Thunderstorm Warning Considerable damage threat	EAX	Caldwell, Carroll, Clay, Ray	48 min
Mar 10, 7:49 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Grundy, Linn, Livingston, Macon, Sullivan	41 min
Mar 10, 7:55 PM CDT	Tornado Warning	EAX	Carroll, Ray	35 min
Mar 10, 8:11 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Linn, Macon, Putnam, Schuyler, Sullivan	48 min
Mar 10, 8:24 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Ray	51 min
Mar 10, 8:32 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Linn, Macon	43 min
Mar 10, 8:51 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Macon, Randolph	39 min
Mar 10, 9:01 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	44 min
Mar 10, 9:09 PM CDT	Severe Thunderstorm Warning	EAX	Ray	36 min
Mar 10, 9:23 PM CDT	Areal Flood Advisory	EAX	Carroll, Ray	3 hr
Mar 10, 9:26 PM CDT	Areal Flood Advisory	EAX	Cass, Jackson	32 min
Mar 10, 9:29 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Jackson	31 min
Mar 10, 9:44 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Chariton, Lafayette, Linn, Macon, Randolph and 2 more	46 min
Mar 10, 9:45 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	30 min
Mar 10, 9:58 PM CDT	Flash Flood Warning	EAX	Cass, Jackson	4 hr
Mar 10, 10:07 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	27 min
Mar 10, 10:33 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	27 min
Mar 10, 10:35 PM CDT	Severe Thunderstorm Warning	EAX	Chariton, Linn, Macon, Randolph	11 min
Mar 10, 10:48 PM CDT	Severe Thunderstorm Warning	EAX	Bates, Cass	28 min
Mar 10, 11:14 PM CDT	Areal Flood Warning	EAX	Carroll, Chariton	13 hr
Mar 11, 12:04 AM CDT	Severe Thunderstorm Warning	EAX	Henry	41 min
Mar 11, 12:34 AM CDT	Severe Thunderstorm Warning	EAX	Pettis	26 min
Mar 11, 12:52 AM CDT	River Flood Warning	EAX	Jackson	4 hr
Mar 11, 12:53 AM CDT	Severe Thunderstorm Warning	EAX	Cooper, Pettis	21 min
Mar 11, 2:12 AM CDT	Areal Flood Warning	EAX	Cass, Jackson	7 hr
Mar 11, 6:21 AM CDT	River Flood Warning	EAX	Carroll	32 hr
Mar 11, 10:44 AM CDT	River Flood Warning	EAX	Cooper, Saline	44 hr
Mar 11, 12:16 PM CDT	Red Flag Warning	EAX	Andrew, Atchison, Buchanan, Clinton, DeKalb, Gentry and 4 more	33 hr
Mar 10, 10:08 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Miami	26 min
Mar 10, 10:38 PM CDT	River Flood Warning	EAX	Johnson	4 hr
Mar 10, 10:44 PM CDT	Special Weather Statement	EAX	Linn, Miami	31 min
Mar 11, 8:35 AM CDT	River Flood Warning	EAX	Miami	24 hr

Nearby

River Flood Warnings in Missouri, 2026 Every 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.