During the afternoon hours of September 3rd, a storm brough a severe wind gust to Miami County.
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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 afternoon hours of September 3rd, a storm brough a severe wind gust to Miami County.
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 Sep 3, 5:57 PM CST, 47 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Kansas City/Pleasant Hill MO 657 PM CDT Wed Sep 3 2025 ...00Z Aviation Update... .KEY MESSAGES... * Showers/storms, a few severe possible, late afternoon and evening as a cold front moves through area. - Large hail and damaging winds main storm risks - Best chances appear central/eastern KS into western MO * Some surface smoke potential behind cold front through Thursday - Mainly hazy look to sky and minor issues near-surface possible * Much below normal temperatures settle in Thursday and through the weekend as another/reinforcing cold front moves through Friday - As much as 10 to 15 degrees below normal - Friday likely coolest day && .DISCUSSION... Issued at 248 PM CDT Wed Sep 3 2025 Objective surface analysis early this afternoon shows the surface cold front having crossed into NW Missouri and is roughly angled in an elongated U-shape fashion; arcing to the WNW and ENE from NW Missouri. Mid-level water vapor satellite imagery also depicts a compact mid-level shortwave moving into the same area, primarily accompanied by increased mid-level cloud cover and weak (unlikely reaching the ground in most cases) radar returns. Otherwise, synoptically speaking the pattern remains highly amplified with NW mid-upper level flow established across the central CONUS as a deepening cutoff low churns into the W/NW Great Lakes Region. It's accompanying surface low continues to drift NE into eastern Ontario while large surface high builds into the northern Plains. For today, main concern remains focused on the potential for a few strong to severe storms later this afternoon and evening. HRRR and other CAM guidance remain largely unchanged in their areal and timing depictions, suggesting most robust activity from around 5pm to 10pm LT. So, where and what will this robust activity be? For the most part, CAMs remain in fair agreement in this regard as well. Best near-surface moisture return/pooling and convergence remains expected central/eastern Kansas where southerly surface flow will largely prevail. Working eastward into western and central Missouri, surface winds orient more westerly and dew points should be a few degrees less, making it more difficult to at least initially convect/be surface based. Instead, activity may be more post frontal in this area, concentrated more towards 850mb and the top of the air mass/cold air advection where a ribbon of moisture is indicated amongst model guidance. Then further eastward toward eastern Missouri, better synoptic scale lift remains poised to initiate weak, non-severe convection. Focusing back toward the best strong/severe potential, areas of central/eastern Kansas hi-res guidance continues to signal SB/MLCAPE values >1500-2000 J/kg later this afternoon/evening, excluding the ever moist/robust NAMnest. Of note, moisture return thus far has appeared weaker than hi-res guidance previously suggested, but HRRR remains adamant of achieving ~68 deg Td ahead of initiation, likely relying on pooling immediately ahead of the front. Vertical wind profiles remain adequate for organization with increasing mid-level winds helping yield >35-40 kts 0-6km bulk shear. Hodograph curvature is best in the immediate vicinity of the front and post frontal, showing good low level curvature. Moving off the front southward, wind profiles become less supportive near-surface (curvature) and aloft (weaker speeds). This suggests strongest organization and severe potential to be with frontal initiation in Kansas and as this activity drifts SE, portions of western Missouri. With storm bases ~6kft and dry below, there will be an enhanced wind threat, along with a hail threat with any supercellular activity as freezing levels reside around 10kft, modest mid-level lapse rates, and dry air below the LCL to help limit melting. As hinted earlier, initiation time ~5pm LT or just after remains anticipated with strong/severe threat continuing into the evening before nocturnal cooling/stabilization decreases overall risks. Targeting roughly the I-70 corridor for this initiation, which does keep the KC Metro at least initially in play, though risk is greater westward where the environment and near-surface convergence will be better. Day 1 SPC Outlook remains in good placement, if not a little aggressive on the eastward extent at the moment. The heavy rain risk too remains virtually nil with progressive features and the wider are able to handle a good amount of rainfall given antecedent conditions. Post frontal, the well advertised anomalously cold air mass will begin to settle in. Guidance of all ilks continue to point towards temperatures around 10 to 15 deg F below normal, which often puts these temperatures toward the 1 to 2.5 percentiles for this time of the year. Quickly on Friday, a reinforcing cold front drops through the Plains as a mid-level shortwave trough and accompanying developing surface low round the larger Ontario cutoff low. Synoptic guidance has seen an uptick in precipitation chances and QPF, primarily in response to deeper and more widespread lift depicted as the area may reside in the right-entrance region of 100-130kt upper level jet. Nothing of consequence aside from likely welcome rainfall. The combination of the reinforcing cold front and rain/cloud cover will make Friday the coldest day of forecast with highs in the mid-upper 60s followed by Saturday morning lows in the mid 40s in most cases. The below normal conditions carry on through the weekend with highs in the 70s and dry conditions. Coupled with light winds, it should be quite the pleasant fall (we are in meteorological fall after all) weekend. By next week, large scale pattern shifts from NW flow aloft to more zonal and eventually building ridging and will allow more persistent southerly winds and increasing 850mb temps to return to the region. This will yield a gradual warming trend with mid-80s likely by mid-week. && .AVIATION /00Z TAFS THROUGH 00Z FRIDAY/... Issued at 657 PM CDT Wed Sep 3 2025 Vicinity showers expected at TAF sites until 03z just behind a cold front that has moved through the area, with any isolated thunder remaining east of KSTJ, and west of KIXD. Brief MVFR cigs are possible through 06z, but predominant BKN050-080 cigs are expected and will persist through 06z-08z, then clouds will scatter out. No vsby restrictions are expected. Winds will persist from the north at 6-10kt through 07z, then become light and variable overnight, with a shift to the south around 5kts between 14z-18z. && .EAX WATCHES/WARNINGS/ADVISORIES... MO...None. KS...None. && DISCUSSION...Curtis
Hazardous Weather Outlook National Weather Service Kansas City/Pleasant Hill MO 0505 AM CDT Wed Sep 03 2025 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-041005- 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 Wed Sep 03 2025 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...Thursday through Tuesday. The probability for widespread hazardous weather is low. .KEY MESSAGES... * Patchy shallow fog across the area this morning. * A strong fast moving cold front will be the focus for thunderstorms later today. Very large hail and damaging winds will be the primary severe weather threats. * Cooler conditions through the remainder of the week, but northern flow may draw wildfire smoke back to the region.
Special Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
707 PM CDT Wed Sep 3 2025
KSZ057-040030-
Miami KS-
707 PM CDT Wed Sep 3 2025
...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN MIAMI COUNTY THROUGH
730 PM CDT...
At 707 PM CDT, Doppler radar was tracking a strong thunderstorm over
Osawatomie, moving southeast at 25 mph.
HAZARD...Half inch hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Osawatomie, Fontana, New Lancaster, and Beagle.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
east central Kansas.
&&
LAT...LON 3853 9504 3858 9498 3846 9469 3839 9479
3839 9494
TIME...MOT...LOC 0007Z 307DEG 23KT 3851 9495
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH
KrullPreliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
725 PM CDT Wed Sep 3 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0712 PM Hail Osawatomie 38.50N 94.95W
09/03/2025 E0.88 Inch Miami KS Trained Spotter
Trained spotter reported nickel size hail in
Osawatomie.
&&
BPSpecial Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
726 PM CDT Wed Sep 3 2025
KSZ057-060-MOZ053-040100-
Miami KS-Linn KS-Bates MO-
726 PM CDT Wed Sep 3 2025
...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN MIAMI...NORTHEASTERN
LINN AND NORTHWESTERN BATES COUNTIES THROUGH 800 PM CDT...
At 726 PM CDT, Doppler radar was tracking a strong thunderstorm near
Fontana, or 7 miles south of Paola, moving southeast at 40 mph.
HAZARD...Half inch hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Paola, Osawatomie, La Cygne, Drexel, Linn Valley, Fontana, Amsterdam,
Merwin, and New Lancaster.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
east central Kansas...and west central Missouri.
&&
LAT...LON 3821 9464 3850 9498 3859 9490 3850 9461
3848 9461 3848 9453 3844 9442
TIME...MOT...LOC 0026Z 299DEG 37KT 3848 9482
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH
KrullThe Pleasant Hill radar (KEAX), 52 km away, was scanning. The volume nearest the first event began at 00:45 UTC.
1 thunderstorm wind. Local standard time, as filed.
Personal weather station recorded wind gust 65 mph just west of Drexel.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2025Every state in 2025This day in weather historyWarnings in Kansas, September 2025
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: 1293258.