Developing thunderstorms produced a severe wind gust in Cloud County early on 7/25.
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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 TOP wrote it up.
Developing thunderstorms produced a severe wind gust in Cloud County early on 7/25.
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 Topeka, KS wrote its last area forecast discussion before the first event at Jul 25, 4:31 AM CST, 2 hours 32 minutes earlier.
Area Forecast Discussion National Weather Service Topeka KS 531 AM CDT Sun Jul 25 2021 ...Update to aviation forecast discussion... .DISCUSSION... Issued at 256 AM CDT Sun Jul 25 2021 At 07Z, GOES imagery and the most recent 00Z upper air data suggest that weak flow remains over the forecast area with the mean Westerlies well to the north of the area into Canada and along portions of the international border. A negatively tilted trough continues to work into portions of the northeastern CONUS and eastern Canadian provinces. Situated just south of the area over the southern Plains is a dome of high pressure that continues to build and eventually dominate the weather pattern across the forecast area into this upcoming week bringing a return to dangerous heat across the region. The monsoonal moisture remains over the Desert Southwest. A weak frontal boundary is just north of the area generally just north of the Kansas/Nebraska border. A few elevated storms remain over north central MO and then back over south central Nebraska. These storms should be maintained over south central NE and begin to move southeast into the early morning hours today. As they do so, outflows should develop and help to push the surface boundary into the area. Mainly convectively induced shortwave energy should also help to sustain development augmented a bit by the heating of the day today. The largest hazard through today and even possibly through part of the Monday appears to be downdraft winds and then isolated areas of heavy rain with slow moving storms. Wouldn't rule out some minor flooding that would likely be highly localized through this afternoon. Also, gusty winds with some storms could briefly cause winds to be around the 40mph range with heating this afternoon creating the typical inverted-V atmospheric profile across the area. As conditions trend dry going through the day on Monday, the heat will be allowed to return with clearing conditions, plenty of insolation and building heights over the area with the upper ridge expanding. This should lead to several days of dangerous heat index values and won't rule out the possible need for multi-day heat advisories or a possible heat warning due to the prolonged nature of the dangerous heat. Will continue to refine the timeframe encompassing the stretch of heat related weather. Bottom line and forecast highlights are anticipated to be heat for the foreseeable future until a meaningful pattern change can take place. && .AVIATION...(For the 12Z TAFS through 12Z Monday morning) Issued at 519 AM CDT Sun Jul 25 2021 A line of showers and storms is developing north of the terminals and should continue to fill in over the next couple of hours and then move south gradually through the day. Cigs should lower within the areas of heavier rain and embedded storms. Otherwise could maintain VFR levels. Have not gone with any MVFR mention at this time as the expectation is that MVFR cig/vis would be brief. Could also see some gusty winds with storms into the afternoon. Otherwise an easterly component under 10kts should be common. && .TOP WATCHES/WARNINGS/ADVISORIES... NONE. && DISCUSSION...Drake AVIATION...Drake
Hazardous Weather Outlook National Weather Service Topeka KS 304 AM CDT Sun Jul 25 2021 KSZ008>012-020>024-026-034>040-054>056-058-059-260815- Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley- Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris- Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson- 304 AM CDT Sun Jul 25 2021 This hazardous weather outlook is for east central...north central and northeast Kansas. .DAY ONE...Today and Tonight. Mainly non-severe thunderstorms will be possible across much of the area from early this morning through the afternoon. Heavy rain and non-severe wind gusts are the most likely impacts. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Dangerous heat is possible in the middle and later portions of next week. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed through tonight. && More detailed information can be accessed at... http://www.weather.gov/top/sitrep
Special Weather Statement
National Weather Service Topeka KS
749 AM CDT Sun Jul 25 2021
KSZ008-251315-
Republic-
749 AM CDT Sun Jul 25 2021
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN REPUBLIC COUNTY UNTIL 815
AM CDT...
At 748 AM CDT, Doppler radar was tracking a strong thunderstorm over
Cuba, moving southeast at 20 mph.
Penny size hail and winds in excess of 40 mph will be possible with
this storm.
Locations impacted include...
Belleville, Cuba, Munden and Agenda.
LAT...LON 3984 9737 3965 9737 3965 9749 3984 9773
3999 9761
TIME...MOT...LOC 1248Z 316DEG 19KT 3980 9748
GarganThe Grand Island radar (KUEX), 110 km away, was scanning. The volume nearest the first event began at 13:02 UTC.
1 thunderstorm wind. Local standard time, as filed.
Kcnk asos reported 58 mph wind with thunderstorm outflow.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2021Every state in 2021This day in weather historyWarnings in Kansas, July 2021
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: 972579.