During the late afternoon hours of April 9th, storms brought damaging wind gusts to Leavenworth County KS.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS EAX wrote it up.
During the late afternoon hours of April 9th, storms brought damaging wind gusts to Leavenworth County KS.
The local office's own words before the first event, 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 the first event at Apr 9, 5:38 PM CST, 4 hours earlier. Its key messages:
Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 638 PM CDT Thu Apr 9 2026 .KEY MESSAGES... * An active weather pattern is expected this evening through the weekend and into early next week. * A few strong to severe storms are possible tonight. Large hail and damaging winds are the primary threats. * Although several rounds of storms area expected Friday through the weekend, the severe threat looks low at this time. * The next threat for severe storms will come Monday night into Tuesday, but uncertainty remains high. * Several consecutive days of rain could lead to minor river/areal flood concerns. && .SHORT TERM /THROUGH FRIDAY/... Issued at 250 PM CDT Thu Apr 9 2026 Current 500-hPa analysis shows largely zonal flow across the central CONUS with a closed low digging down the Pacific Coast and a trough lifting into eastern Canada. At the surface, a stationary front has settled across northern MO with temperatures in the mid-to-upper 70s south of the front. A 25-35 kt LLJ has been persistent through the day thus far and in conjunction with the front, has forced a few showers and thunderstorms across eastern KS. As the afternoon progresses, moisture return will result in 1000-1500 J/kg of MUCAPE developing along and north of the front. The LLJ will intensify this evening resulting in shear values of 40-50 kts creating a setup for possible severe weather as a shortwave moves through the pattern. Storms will begin to develop in southeastern NE and northeastern KS late this afternoon and will move into northwestern MO between 6-7pm this evening. Storms will primarily be elevated in nature resulting in the main threat being large hail, however, a damaging wind gust cannot be ruled out, particularly in any storms that are able to move off the front and become surface based. The front will slowly shift southward tonight allowing showers and storms to build through the area overnight. The primary severe threat will be north of I-70 and west of I-35 with MUCAPE values diminishing as storms move southward through the night. The front will again stall out tomorrow morning, this time across southern MO. The front will continue to be a focal point for showers and storms on Friday as several more quick moving shortwaves progress through the pattern, so the southern portion of the CWA will likely (70-80%) remain wet into the afternoon. However, the best instability will be concentrated south of the area, so the severe threat in our area is low. With the front passing through tonight, temperatures will be cooler tomorrow with highs in the low-to-mid 60s. && .LONG TERM /FRIDAY NIGHT THROUGH THURSDAY/... Issued at 250 PM CDT Thu Apr 9 2026 By Friday night, the closed low that is currently over the Pacific Coast will open into a shortwave and lift northeast across the Rockies. This will create southwesterly flow across the Central Plains as ridging develops over the Mississippi River Valley. The front will once again cross the area, this time lifting northward as a warm front and will again bring widespread shower and storm chances (60-70%) on Saturday. WAA induced showers and storms will be prevalent again on Sunday with 60-80% chances areawide through the day, however the severe threat will remain low through the weekend. Another trough is expected to dig down the West Coast through the weekend and begin to eject inland by Monday bringing our next chance for severe weather to the area Monday night. A lot of uncertainty remains in the timing of the system, however, 1500-2500 J/kg of MUCAPE are expected to develop Monday afternoon with deep layer shear values increasing through the evening as a mid-level jet streak begins to nose into the area. As of now, the timing seems to be more of a late evening to overnight threat, however, that may be subject to change as more details iron themselves out over the coming days. The severe threat continues on Tuesday as the trough progresses across the central CONUS, with a cold front finally bringing an end to this round of storms by Wednesday. Given the multiple rounds of showers and storms expected through midweek next week, flooding may be of concern. Most areas will see 1-3" of rainfall spread across several days, so the threat remains fairly low at this time, however, it is something to keep an eye on over the coming days. Temperatures through the extended will continue to be warm. Highs will return to the mid-to-upper 70s this weekend as the front lifts north through the area. Monday and Tuesday look to be the warmest days with highs in the low 80s before a return to the mid-to-upper 70s by midweek. && .AVIATION /00Z TAFS THROUGH 00Z SATURDAY/... Issued at 638 PM CDT Thu Apr 9 2026 Within the next several hours, showers and storms will begin to impact all four terminals, extending into the overnight and early morning hours on Friday. Winds will gradually begin to shift to out of the north/northeast by sunrise with CIGs falling to IFR/near IFR conditions. IFR CIGs will likely hang around for a few hours after rain ends before returning to MVFR/VFR in the afternoon hours on Friday. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && SHORT TERM...Carothers LONG TERM...Carothers AVIATION...Macko
Hazardous Weather Outlook National Weather Service Kansas City/Pleasant Hill MO 0508 AM CDT Thu Apr 09 2026 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-101008- 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 Thu Apr 09 2026 This hazardous weather outlook is for northwest...north central and west central Missouri...as well as extreme eastern Kansas. .DAY ONE...Through tonight. The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. The probability for widespread hazardous weather is low. .KEY MESSAGES... * An active weather pattern is expected today through the weekend and into early next week. * A few strong to severe storms are possible tonight. Large hail and damaging winds are the primary threats. * Although several rounds of storms area expected Friday through the the severe threat looks low at this time. * The next threat for severe storms will come Monday night into Tuesday, but uncertainty remains high. * Several consecutive days of rain could lead to minor river/areal flood concerns.
Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
1015 PM CDT Thu Apr 9 2026
KSZ025-103-MOZ020-028-100345-
Atchison KS-Leavenworth KS-Platte MO-Buchanan MO-
1015 PM CDT Thu Apr 9 2026
...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN LEAVENWORTH...
SOUTHEASTERN ATCHISON...SOUTHWESTERN BUCHANAN AND NORTHWESTERN PLATTE
COUNTIES THROUGH 1045 PM CDT...
At 1015 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from Atchison to Winchester to
Meriden. Movement was east at 40 mph.
HAZARD...Wind gusts up to 50 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Leavenworth, Weston, Dearborn, Easton, Lewis and Clark Village, De
Kalb, Iatan, Fort Leavenworth, Lowemont, Jarbalo, and Bean Lake.
This includes Interstate 29 between mile markers 30 and 34.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Kansas...and northwestern and west central Missouri.
&&
LAT...LON 3942 9518 3942 9511 3958 9509 3959 9474
3924 9497 3915 9518
TIME...MOT...LOC 0315Z 290DEG 34KT 3954 9511 3933 9527 3920 9554
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
KrullThe Pleasant Hill radar (KEAX), 76 km away, was scanning. The volume nearest the first event began at 03:37 UTC.
2 thunderstorm wind. Local standard time, as filed.
Measured wind gust of 64 mph at a personal weather station west of Fairmount.
Roof damaged on west side of Leavenworth.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2026Every state in 2026This day in weather historyWarnings in Kansas, April 2026
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1322621, 1322623.