Alert archive / Missouri / Flash Flood Warnings in 2026
Flash Flood Warning 60, NWS Kansas City, MO
NWS Kansas City, MO issued this flash flood warning at Aug 19, 2026, 3:19 AM CDT for Leavenworth County, Wyandotte County, Kansas; Clay County, Jackson County, Platte County, Missouri. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 19, 2026, 3:19 AM CDT (08:19 UTC)
- Expired
- Aug 19, 2026, 6:54 AM CDT
- In force
- 4 hr
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Leavenworth County, KS, Wyandotte County, KS, Clay County, MO, Jackson County, MO, Platte County, MO
The radar
The Pleasant Hill radar (KEAX), 61 km from the middle of the area, began a volume at 08:22 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
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, 8.3 hours before the alert went out and 262 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
- 1335 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 2050 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 255 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.8
The text
As transmitted.
271
WGUS53 KEAX 190819
FFWEAX
KSC103-209-MOC047-095-165-191415-
/O.NEW.KEAX.FF.W.0060.260819T0819Z-260819T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Kansas City/Pleasant Hill MO
319 AM CDT Wed Aug 19 2026
The National Weather Service in Pleasant Hill has issued a
* Flash Flood Warning for...
Leavenworth County in northeastern Kansas...
Wyandotte County in northeastern Kansas...
Southwestern Clay County in west central Missouri...
Northwestern Jackson County in west central Missouri...
Southeastern Platte County in west central Missouri...
* Until 915 AM CDT.
* At 319 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
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...
Kansas City, Leavenworth, Gladstone, Lansing, Mission, Smithville,
Bonner Springs, Parkville, Tonganoxie, Platte City, Basehor,
Edwardsville and North Kansas City.
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.
&&
LAT...LON 3905 9491 3906 9519 3913 9519 3913 9518
3938 9518 3934 9447 3902 9448 3903 9461
3904 9461 3904 9480 3906 9484 3906 9487
3905 9488
FLASH FLOOD...RADAR INDICATED
$$
Pesel2 follow-up statements
746
WGUS73 KEAX 191009
FFSEAX
Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
509 AM CDT Wed Aug 19 2026
KSC103-209-MOC047-095-165-191415-
/O.CON.KEAX.FF.W.0060.000000T0000Z-260819T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Leavenworth KS-Wyandotte KS-Clay MO-Jackson MO-Platte MO-
509 AM CDT Wed Aug 19 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 915 AM CDT THIS
MORNING FOR LEAVENWORTH, WYANDOTTE, SOUTHWESTERN CLAY, NORTHWESTERN
JACKSON AND SOUTHEASTERN PLATTE COUNTIES...
At 509 AM CDT, The storms which produced 2 to 4 inches of rain across
the warned area have pushed south of the region and weakened. No
significant rainfall is expected in the short-term. However, runoff
from the earlier heavy rainfall will continue to produce flooding
across flood-prone areas during the next couple of hours.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Kansas City, Leavenworth, Gladstone, Lansing, Mission, Smithville,
Bonner Springs, Parkville, Tonganoxie, Platte City, Basehor,
Edwardsville and North Kansas City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3905 9491 3906 9519 3913 9519 3913 9518
3938 9518 3934 9447 3902 9448 3903 9461
3904 9461 3904 9480 3906 9484 3906 9487
3905 9488
FLASH FLOOD...RADAR INDICATED
$$
SAW122
WGUS73 KEAX 191154
FFSEAX
Flash Flood Statement
National Weather Service Kansas City/Pleasant Hill MO
654 AM CDT Wed Aug 19 2026
KSC103-209-MOC047-095-165-191204-
/O.CAN.KEAX.FF.W.0060.000000T0000Z-260819T1415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Leavenworth KS-Wyandotte KS-Clay MO-Jackson MO-Platte MO-
654 AM CDT Wed Aug 19 2026
...FLASH FLOOD WARNING IS CANCELLED FOR LEAVENWORTH, WYANDOTTE,
SOUTHWESTERN CLAY, NORTHWESTERN JACKSON AND SOUTHEASTERN PLATTE
COUNTIES...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 3905 9491 3906 9519 3913 9519 3913 9518
3938 9518 3934 9447 3902 9448 3903 9461
3904 9461 3904 9480 3906 9484 3906 9487
3905 9488
$$
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 Aug 19, 2:19 AM CDT, 1 hour earlier. Its key messages:
- Showers and thunderstorms continue through the morning hours. Damaging winds, hail, and heavy rainfall continues.
- Additional showers and thunderstorms are possible this afternoon and evening primarily across northern MO.
- Temperatures gradually warm through the week with more hot and humid conditions possible next week. Additional storm chances are possible through this week.
Area forecast discussion, Aug 19, 2:19 AM CDT, 1 hour before
Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 219 AM CDT Wed Aug 19 2026 .KEY MESSAGES... - Showers and thunderstorms continue through the morning hours. Damaging winds, hail, and heavy rainfall continues. - Additional showers and thunderstorms are possible this afternoon and evening primarily across northern MO. - Temperatures gradually warm through the week with more hot and humid conditions possible next week. Additional storm chances are possible through this week. && .DISCUSSION... Issued at 217 AM CDT Wed Aug 19 2026 Showers and thunderstorms continue along a diffuse warm frontal boundary stretching from Oskaloosa, KS southeast through Pilot Grove, MO. Upper level instability and ample DCAPE still promote an environment for storms with damaging winds and some hail. As of writing, storms are progressing just enough to mitigate most flooding concerns. There is still some concern for hydrological impacts as radar QPE show around 1.5 to 2 inches of rainfall across portions of Atchison (KS) and Leavenworth counties progress eastward into the KC metro. Storms continue to gradually sink southward with showers and thunderstorms lingering through the morning hours; ending by midday. Upper level flow pivots to the northwest which help usher a mid level shortwave southward. This brings additional opportunities for showers and thunderstorms later this afternoon into the evening hours primarily for areas north of the MO River. Ample instability and shear do present a marginal opportunity for a strong to severe storm; however, we will have a much better idea once this current complex roles through. Another cooler airmass moves in behind this front but all it does is delay the warming trend that arrives later this week as broadscale ridging begins to slowly build into the central CONUS. The center of this ridge stalls across the Rockies putting our CWA in the NW flow of the eastern hemisphere of the synoptic ridge. This opens up flow to allow multiple shortwaves to pass over the region presenting further opportunities for precipitation later in the week. Long term guidance slowly slides this high to the east suggesting the potential for another stretch of hot and humid conditions next week. && .AVIATION /06Z TAFS THROUGH 06Z THURSDAY/... Issued at 1242 AM CDT Wed Aug 19 2026 RA and TSRA continues for the next couple of hours across the terminals. Gusty winds across the south side of these storms continue affecting IXD. Additional development behind the initial line of storms keeps RA/TSRA around through much of the overnight. VFR conditions return during the morning and look to persist through much of the day. Additional TSRA is possible north of the MO River during the late afternoon/early evening; however, some uncertainties remain with RA forecast. Winds become light and variable after sunset. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && DISCUSSION...Pesel AVIATION...Pesel
Hazardous weather outlook, Aug 18, 5:05 AM CDT, 22 hours 14 minutes before
Hazardous Weather Outlook National Weather Service Kansas City/Pleasant Hill MO 0505 AM CDT Tue Aug 18 2026 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-191005- 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- 0505 AM CDT Tue Aug 18 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...Wednesday through Monday. The probability for widespread hazardous weather is low. .KEY MESSAGES... - Severe thunderstorms are possible today and tonight, with the most likely timing from late this evening through the overnight hours. - Near-normal temperatures likely Wednesday into early next week with low precipitation chances, mainly early next week.
In the hours before
Local storm report, Aug 19, 1:30 AM CDT, 1 hour 49 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
130 AM CDT Wed Aug 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0122 AM Hail 1 NNW Maywood 39.14N 94.81W
08/19/2026 E1.75 Inch Wyandotte KS Trained Spotter
Shared photos of several hailstones
approximately golf ball sized. Time
estimated from radar.
&&
SPGLocal storm report, Aug 19, 1:32 AM CDT, 1 hour 47 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
132 AM CDT Wed Aug 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0120 AM Hail 2 NE Piper 39.16N 94.83W
08/19/2026 E1.75 Inch Wyandotte KS Public
Golf Ball sized hail reported by the public.
Time estimated from radar.
&&
SPGLocal storm report, Aug 19, 1:37 AM CDT, 1 hour 42 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
137 AM CDT Wed Aug 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0116 AM Hail 3 NNW Piper 39.18N 94.88W
08/19/2026 M1.75 Inch Wyandotte KS Public
Photo shared on social media of measured
hail around golf ball sized. Time estimated
from radar.
&&
SPGLocal storm report, Aug 19, 1:50 AM CDT, 1 hour 29 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
150 AM CDT Wed Aug 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0122 AM Hail 2 NE Piper 39.16N 94.83W
08/19/2026 M1.75 Inch Wyandotte KS Emergency Mngr
Emergency manager shared photo of golf ball
sized hail, time estimated from radar.
&&
SPGLocal storm report, Aug 19, 1:53 AM CDT, 1 hour 26 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
153 AM CDT Wed Aug 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0132 AM Hail 2 E Maywood 39.13N 94.76W
08/19/2026 E1.00 Inch Wyandotte KS Public
Public reported quarter sized hail. Time
estimated from radar.
0145 AM Hail 1 NW Kansas City 39.11N 94.59W
08/19/2026 E1.25 Inch Jackson MO Public
Public reported half dollar sized hail. Time
estimated from radar.
&&Local storm report, Aug 19, 2:56 AM CDT, 23 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
256 AM CDT Wed Aug 19 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0113 AM Tstm Wnd Dmg 2 SSE Fairmount 39.17N 94.92W
08/19/2026 Leavenworth KS Emergency Mngr
Emergency manager reports large tree down
across the roadway with powerlines down
alongside a camper. Time estimated from
radar.
0128 AM Hail 1 NNE Maywood 39.15N 94.79W
08/19/2026 M1.50 Inch Wyandotte KS Public
Public shared photo of hailstone on social
media. Time estimated from radar.
0144 AM Hail 1 NW North Kansas City 39.15N 94.58W
08/19/2026 E1.25 Inch Clay MO Public
Public shared report via social media of
several hailstones approximately half dollar
sized. Time estimated from radar.
0150 AM Hail 1 SSE North Kansas City 39.11N 94.56W
08/19/2026 E1.75 Inch Jackson MO Public
Public shared photo on social media of many
large hailstones, with the largest
approximately golf ball sized. Time
estimated from radar.
0150 AM Hail Independence 39.09N 94.41W
08/19/2026 E1.25 Inch Jackson MO Public
Public shared photo of hail approximately
half dollar sized. Time estimated from
radar.
0156 AM Hail 2 W Sugar Creek 39.10N 94.48W
08/19/2026 E1.75 Inch Jackson MO Public
Social media shared a photo of hail
approximately golf ball sized. Time
estimated from radar.
0156 AM Hail Sugar Creek 39.11N 94.45W
08/19/2026 M1.00 Inch Jackson MO Public
Public shared photo of quarter sized hail.
Time estimated from radar.
0201 AM Hail 1 SW Independence 39.08N 94.43W
08/19/2026 M1.50 Inch Jackson MO Public
Social media shared report of hail
approximately ping pong in size. Time
estimated from radar.
&&The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 9:37 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 38 min |
| Aug 18, 10:10 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Leavenworth, Wyandotte | 36 min |
| Aug 18, 10:33 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Leavenworth, Wyandotte | 42 min |
| Aug 18, 11:09 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Wyandotte | 36 min |
| Aug 19, 12:38 AM CDT | Severe Thunderstorm Warning | EAX | Leavenworth, Wyandotte | 37 min |
| Aug 19, 1:00 AM CDT | Severe Thunderstorm Warning | EAX | Wyandotte | 45 min |
| Aug 19, 1:12 AM CDT | Severe Thunderstorm Warning | EAX | Leavenworth, Wyandotte | 23 min |
| Aug 19, 1:26 AM CDT | Areal Flood Advisory | EAX | Leavenworth, Wyandotte | 3 hr |
| Aug 19, 1:40 AM CDT | Severe Thunderstorm Warning | EAX | Wyandotte | 50 min |
| Aug 19, 3:39 PM CDT | Severe Thunderstorm Warning | EAX | Doniphan | 66 min |
| Aug 19, 4:18 PM CDT | Severe Thunderstorm Warning | EAX | Doniphan | 42 min |
| Aug 19, 4:35 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 25 min |
| Aug 19, 4:56 PM CDT | Severe Thunderstorm Warning | EAX | Doniphan | 49 min |
| Aug 19, 4:29 AM CDT | Special Weather Statement | EAX | Johnson | 31 min |
| Aug 19, 2:19 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 41 min |
| Aug 19, 3:05 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 55 min |
| Aug 19, 3:58 PM CDT | Severe Thunderstorm Warning | EAX | Atchison, Nodaway | 21 min |
| Aug 19, 5:07 PM CDT | Special Weather Statement | EAX | Buchanan, Clinton, Platte | 38 min |
| Aug 19, 5:27 PM CDT | Severe Thunderstorm Warning | EAX | Buchanan, Caldwell, Clinton, Daviess, DeKalb, Gentry and 2 more | 48 min |
| Aug 19, 5:53 PM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Carroll, Clinton, Daviess, Livingston, Ray | 52 min |
| Aug 19, 6:28 PM CDT | Special Weather Statement | EAX | Livingston | 32 min |
Nearby
Flash Flood Warnings in Missouri, 2026Flash Flood Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.