Alert archive / Missouri / River Flood Warnings in 2026

River Flood Warning 23, NWS Kansas City, MO

April 17, 2026Cass County, Henry County, Johnson County, Missouri

NWS Kansas City, MO issued this river flood warning at Apr 17, 2026, 8:39 AM CDT for Cass County, Henry County, Johnson County, Missouri. It took effect at Apr 17, 2026, 3:32 PM CDT. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Apr 17, 2026, 8:39 AM CDT (13:39 UTC)
In effect from
Apr 17, 2026, 3:32 PM CDT
Expired
Apr 18, 2026, 2:27 PM CDT
In force
23 hr
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Flood severity
Moderate

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 13:38 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). The gauge peaked at 21.84 ft at Apr 18, 2026, 2:00 AM CDT.

actionminormoderate152004/1704/1804/19
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 Apr 17, 6:37 AM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Apr 17, 6:37 AM CDT, 2 hours 2 minutes before
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Hazardous weather outlook, Apr 17, 5:07 AM CDT, 3 hours 32 minutes before
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
0507 AM CDT Fri Apr 17 2026

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-181007-
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-
0507 AM CDT Fri Apr 17 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...Saturday through Thursday.

Please go to https://weather.gov/media/eax/DssPacket.pdf for more information on
potential weather hazards.

.KEY MESSAGES...

- Strong to severe thunderstorms are expected across the region
  this afternoon. All severe hazards will be possible, but large
  hail should be the primary threat soon after storm initiation
  while damaging winds become more probable as storms organize
  into clusters or lines. Isolated tornadoes cannot be ruled
  out, especially if storms can remain discrete.

- Flash flooding and river flooding is possible this evening, as
  storms will be capable of producing torrential rainfall.
  Additionally, training storms may develop in southern portions
  of the forecast area, where local rainfall amounts of 2 to 4
  inches may occur. A flood watch is in effect late this
  afternoon through tonight roughly along and south of I-70.

- Much cooler temperatures are expected on Saturday.
  Temperatures may fall into the low to mid 30s on Saturday
  night, with areas of frost possible (up to a 50 percent chance
  north and east of the Missouri River).

In the hours before

Local storm report, Apr 17, 4:27 AM CDT, 4 hours 12 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 1:42 AM CDTFlood WatchEAXBates, Carroll, Cass, Chariton, Clay, Cooper and 11 more26 hr
Apr 17, 8:39 AM CDTRiver Flood WarningEAXBates, Cass, Henry24 hr
Apr 17, 9:07 AM CDTRiver Flood WarningEAXCooper11 hr
Apr 17, 9:07 AM CDTRiver Flood WarningEAXCooper, Saline6 days
Apr 17, 9:07 AM CDTRiver Flood WarningEAXJohnson, Pettis3 days
Apr 17, 9:07 AM CDTRiver Flood WarningEAXCooper45 hr
Apr 17, 1:16 PM CDTSevere Thunderstorm WarningEAXGentry, Nodaway, Worth44 min
Apr 17, 2:03 PM CDTSevere Thunderstorm WarningEAXGentry, Nodaway42 min
Apr 17, 2:27 PM CDTSevere Thunderstorm WarningEAXCaldwell, Carroll, Daviess, Grundy, Livingston, Ray48 min
Apr 17, 2:27 PM CDTSevere Thunderstorm WarningEAXBuchanan, Platte48 min
Apr 17, 2:31 PM CDTSevere Thunderstorm WarningEAXCaldwell, Daviess, Grundy44 min
Apr 17, 2:33 PM CDTSevere Thunderstorm WarningEAXGentry, Harrison42 min
Apr 17, 2:34 PM CDTSevere Thunderstorm WarningEAXHoward, Randolph41 min
Apr 17, 2:35 PM CDTSevere Thunderstorm WarningEAXGentry, Harrison, Worth40 min
Apr 17, 2:38 PM CDTSevere Thunderstorm WarningEAXBuchanan, Platte37 min
Apr 17, 2:40 PM CDTSevere Thunderstorm WarningEAXCaldwell, Ray35 min
Apr 17, 2:47 PM CDTSevere Thunderstorm WarningEAXAndrew, DeKalb, Gentry28 min
Apr 17, 2:47 PM CDTSevere Thunderstorm WarningEAXRay28 min
Apr 17, 2:51 PM CDTSevere Thunderstorm WarningEAXDaviess, Grundy, Linn, Livingston, Mercer, Putnam and 1 more39 min
Apr 17, 2:55 PM CDTSevere Thunderstorm WarningEAXGentry, Grundy, Harrison, Mercer, Worth50 min
Apr 17, 2:57 PM CDTTornado WarningEAXBuchanan, Platte33 min
Apr 17, 2:59 PM CDTSevere Thunderstorm WarningEAXRandolph31 min
Apr 17, 3:07 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXAndrew, Buchanan, Holt, Platte38 min
Apr 17, 3:09 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXCaldwell, Carroll, Daviess, Livingston51 min
Apr 17, 3:11 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXAndrew, Buchanan, Clinton, Daviess, DeKalb, Gentry and 1 more64 min
Apr 17, 3:14 PM CDTSevere Thunderstorm WarningEAXMercer, Putnam31 min
Apr 17, 3:25 PM CDTTornado WarningEAXBuchanan, Clinton, Platte20 min
Apr 17, 3:26 PM CDTSevere Thunderstorm WarningEAXMercer, Putnam, Sullivan49 min
Apr 17, 3:33 PM CDTSevere Thunderstorm WarningEAXGrundy, Mercer, Sullivan27 min
Apr 17, 3:33 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXHarrison, Mercer, Putnam57 min
Apr 17, 3:39 PM CDTSevere Thunderstorm WarningEAXBuchanan, Platte42 min
Apr 17, 3:39 PM CDTSevere Thunderstorm WarningEAXGrundy, Linn, Livingston, Mercer, Sullivan36 min
Apr 17, 3:45 PM CDTTornado WarningEAXGrundy, Linn, Livingston, Sullivan45 min
Apr 17, 3:51 PM CDTSevere Thunderstorm WarningEAXBuchanan, Caldwell, Clinton, Daviess, DeKalb39 min
Apr 17, 3:56 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXGrundy, Linn, Livingston, Mercer, Sullivan64 min
Apr 17, 4:08 PM CDTSevere Thunderstorm WarningEAXAdair, Mercer, Putnam, Schuyler, Sullivan52 min
Apr 17, 4:20 PM CDTSevere Thunderstorm WarningEAXCaldwell, Clinton, Daviess, DeKalb, Grundy, Livingston40 min
Apr 17, 4:24 PM CDTTornado WarningEAXAdair, Linn, Macon, Sullivan37 min
Apr 17, 4:35 PM CDTSevere Thunderstorm Warning Destructive damage threatEAXCass40 min
Apr 17, 4:44 PM CDTSevere Thunderstorm WarningEAXClay, Jackson, Platte, Ray46 min
Apr 17, 4:53 PM CDTSevere Thunderstorm WarningEAXAdair, Caldwell, Daviess, Grundy, Linn, Livingston and 2 more52 min
Apr 17, 4:58 PM CDTSevere Thunderstorm Warning Destructive damage threatEAXCaldwell, Daviess, Grundy, Livingston33 min
Apr 17, 4:59 PM CDTSevere Thunderstorm WarningEAXAdair, Macon, Putnam, Schuyler46 min
Apr 17, 5:02 PM CDTFlash Flood WarningEAXClay, Jackson, Platte3 hr
Apr 17, 5:02 PM CDTSevere Thunderstorm Warning Destructive damage threatEAXBates, Cass, Jackson58 min
Apr 17, 5:11 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXBates, Caldwell, Carroll, Cass, Clay, Henry and 4 more79 min
Apr 17, 5:13 PM CDTTornado WarningEAXCass, Jackson32 min
Apr 17, 5:23 PM CDTSevere Thunderstorm WarningEAXAdair, Chariton, Linn, Livingston, Macon, Randolph67 min
Apr 17, 5:25 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXClay, Jackson35 min
Apr 17, 5:39 PM CDTSevere Thunderstorm WarningEAXBates, Henry66 min
Apr 17, 5:43 PM CDTSevere Thunderstorm WarningEAXAdair, Macon, Schuyler47 min
Apr 17, 5:46 PM CDTSevere Thunderstorm WarningEAXBates, Cass44 min
Apr 17, 5:47 PM CDTSevere Thunderstorm WarningEAXCaldwell, Carroll, Chariton, Lafayette, Livingston, Ray and 1 more43 min
Apr 17, 6:01 PM CDTSevere Thunderstorm WarningEAXJohnson, Lafayette, Pettis, Saline30 min
Apr 17, 6:20 PM CDTSevere Thunderstorm WarningEAXCarroll, Chariton, Howard, Linn, Macon, Randolph and 1 more42 min
Apr 17, 6:21 PM CDTTornado WarningEAXBates24 min
Apr 17, 6:30 PM CDTSevere Thunderstorm WarningEAXBates, Cass, Henry45 min
Apr 17, 4:27 PM CDTSevere Thunderstorm WarningEAXJohnson48 min
Apr 17, 5:17 PM CDTSevere Thunderstorm Warning Considerable damage threatEAXJohnson, Miami, Wyandotte28 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.