An isolated thunderstorm produced quarter sized hail in Nemaha County during the morning of 6/12.
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The episode as NWS TOP wrote it up.
An isolated thunderstorm produced quarter sized hail in Nemaha County during the morning of 6/12.
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 Jun 12, 5:15 AM CST, 2 hours 57 minutes earlier.
Area Forecast Discussion National Weather Service Topeka KS 615 AM CDT Sun Jun 12 2022 ...Update to aviation forecast discussion... .DISCUSSION... Issued at 241 AM CDT Sun Jun 12 2022 Key Messages: - Potential for dangerous heat continues today - Thunderstorm chances return midweek Discussion: High dewpoints and very warm temperatures aloft still spell a potential for dangerous heat today, although cloud cover from decaying storms to the west and broad lift this afternoon may hold temperatures below their full potential. Will continue the heat advisory as conditions will be very muggy and winds will again be pretty light, and the less mixing that occurs, the more afternoon humidity we'll retain. Storms are expected to form over high terrain in CO/WY early this afternoon, with additional DCI possible across the High Plains where an approaching trough will add upper support to an unstable afternoon environment. The transition to southwesterly flow across the High/Northern Plains will steer the majority of thunderstorm activity north of the forecast area, but cold pool dynamics could allow storms to briefly enter the northwest forecast area before pushing off into south central Nebraska. Any storms that enter the forecast area have the potential to be severe, but the overall probability of this occurring is low (10-20%). Hot temperatures are expected again Monday and Tuesday, but better mixing should reduce dewpoints and bring breezier conditions, both which will make it feel less oppressive than yesterday and today. Heat indices (and air temperatures, in central KS) do approach 105 degrees Monday, so an additional day may need to be added to the heat advisory for Monday afternoon. Thunderstorm chances return as early as Tuesday night when a deep upper low begins lifting slowly into the far Northern Plains and enhances southwest flow across the region. The highest chances for storms will be at night, as the LLJ may be the best forcing for initiation. A cold front will then begin to sag southward into the region, bringing an additional focus for thunderstorm development whenever frontal passage occurs (currently looking like the Thursday afternoon or evening time frame). Slightly cooler but still quite warm conditions are expected midweek through the end of the forecast period as the flow transitions from broadly ridged to more southwesterly, although the ridge shows some signs of re- strengthening over the central Plains near the end of the period (next weekend). && .AVIATION...(For the 12Z TAFS through 12Z Monday morning) Issued at 615 AM CDT Sun Jun 12 2022 VFR conditions are expected through the TAF period. High clouds will increase in coverage this morning, as anvil blowoff from decaying storms to the west and more robust storms to the north move into the area. Winds will gradually increase out of the southeast, reaching speeds around 8-10 kts by this afternoon. && .TOP WATCHES/WARNINGS/ADVISORIES... Heat Advisory from 1 PM this afternoon to 9 PM CDT this evening for KSZ008>012-020>024-026-034>040-054>056-058-059. && DISCUSSION...Laflin AVIATION...Laflin
Hazardous Weather Outlook National Weather Service Topeka KS 303 AM CDT Sun Jun 12 2022 KSZ008>012-020>024-026-034>040-054>056-058-059-130815- Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley- Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris- Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson- 303 AM CDT Sun Jun 12 2022 This hazardous weather outlook is for east central...north central and northeast Kansas. .DAY ONE...Today and Tonight Heat indices of 105 to 108 degrees are expected this afternoon for the majority of the outlook area. A Heat Advisory is in effect. There is a small (10-20 percent) chance for strong to severe storms in north central Kansas this evening. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Heat indices and air temperatures will approach 105 degrees again Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed through tonight. && More detailed information can be accessed at... http://www.weather.gov/media/top/DssPacket.pdf
The Topeka radar (KTWX), 94 km away, was scanning. The volume nearest the first event began at 14:12 UTC.
1 hail. Local standard time, as filed.
Report of mainly pea to half inch hail with a few hailstones around quarter size.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2022Every state in 2022This day in weather historyWarnings in Kansas, June 2022
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: 1036983.