On the late afternoon of May 9th, a squall line brought damaging winds and one report of ping pong ball sized hail to far eastern Kansas.
Every event with a place to put it. Tap one for its entry below.
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.
On the late afternoon of May 9th, a squall line brought damaging winds and one report of ping pong ball sized hail to far eastern Kansas.
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 May 9, 1:15 PM CST, 3 hours 11 minutes earlier.
AREA FORECAST DISCUSSION National Weather Service Kansas City/Pleasant Hill MO 215 PM CDT Tue May 9 2023 .Discussion... Issued at 215 PM CDT TUE MAY 9 2023 Key Points: * Thunderstorms expected this evening, with severe weather likely south of a line from the southern Metro to Clinton. * Additional thunderstorms possible Wednesday and Thursday. Detailed discussion... Mature MCS across north central KS is expected to roll southeast through the afternoon hours impacting eastern KS/western Missouri late this afternoon/this evening. Diffuse surface boundary extending from roughly the KC metro southeast towards Clinton MO. South of this boundary, southerly component of the wind is going to lead to increasing moisture and instability. Models are underdoing amount of near surface moisture, leading to ~1500 J/kg of ML CAPE is south of the boundary, while areas north are increasingly stable. Mid-day sounding from TOP showing extreme temperature lapse rates from the surface to near 850 mb. MCS is expected to move southeast along the boundary/instability gradient, with additional development on the southern end of the complex. Inverted V soundings and downdraft CAPE of 1000+ J/kg supporting strong to severe wind gusts through the evening hours. Complex is expected to move southeast into southern Missouri towards 03Z Wednesday. Uncertainty remains on sensible weather on Wednesday with surface ridge across the Great Lakes region funneling drier air into eastern Missouri, while more muggy more conditionally unstable air is across central and western Missouri. Ill-timed short wave is expected to move across the region Wednesday morning, increasing shear but usable instability is limited. With lingering cloud cover, there is a question as to how much it will warm through the afternoon. If temperatures are able to warm into the upper 70s to near 80F with dew points in the mid to upper 60s, cin becomes minimal and may be able to develop diurnally driven thunderstorms. Additional, more organized storms are possible on Thursday as area of low pressure on the east coast of Texas Wednesday morning lifts south to north across Missouri on Thursday. Another trough across the central Plains will lead to additional thunderstorms across western Kansas/Nebraska. && .Aviation...(For the 18Z TAFS through 18Z Wednesday Afternoon) Issued at 1227 PM CDT TUE MAY 9 2023 VFR conditions are expected outside of a complex of storms moving from north central KS into the area after 21Z. Storms are expected to move to the southeast into eastern KS/western MO by 21Z. Gusty winds are possible on the leading edge of the storms. Thunderstorms are expected to move southeast of the area by 03Z Wednesday. && .EAX WATCHES/WARNINGS/ADVISORIES... KS...NONE. MO...NONE. && Discussion...BT Aviation...Collier
Hazardous Weather Outlook National Weather Service Kansas City/Pleasant Hill MO 338 AM CDT Tue May 9 2023 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-100845- 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- 338 AM CDT Tue May 9 2023 This hazardous weather outlook is for northwest...north central and west central Missouri...as well as extreme eastern Kansas. .DAY ONE...Today and Tonight A few strong storms will be possible this afternoon and evening over east central Kansas into west central Missouri. The main threats will be for hail up to the size of a quarter and wind gusts up to 60 mph. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Several rounds of scattered thunderstorms will be possible through Friday. Some storms late Thursday night may be strong to severe with damaging wind gusts. More detailed information can be accessed at... https://www.weather.gov/eax/hwo
The Pleasant Hill radar (KEAX), 69 km away, was scanning. The volume nearest the first event began at 22:23 UTC.
3 thunderstorm wind, 1 hail. Local standard time, as filed.
Estimated wind gusts up to 60 mph were estimated in Osawatomie.
Estimated wind gusts up to 65 mph was reported in Parker.
Ping pong ball sized hail was reported in Osawatomie.
Estimated wind gusts up to 60 mph was reported in Pleasanton.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2023Every state in 2023This day in weather historyWarnings in Kansas, May 2023
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: 1103922, 1103924, 1103927, 1103926.