A couple rounds of severe storms rolled across western Wisconsin during the evening of September 24th. These storms produced a tornado in Clark County that started southwest of Greenwood and ended west of Loyal.
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 ARX wrote it up.
A couple rounds of severe storms rolled across western Wisconsin during the evening of September 24th. These storms produced a tornado in Clark County that started southwest of Greenwood and ended west of Loyal. The tornado damaged several farm buildings, silos and trees along its path. High winds from the storms blew down trees from Alma and Modena (Buffalo County), east through Eleva and Osseo (Trempealeau County) to near Humbird (Clark County). The Governor of Wisconsin declared a state of emergency for Clark 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 La Crosse, WI wrote its last area forecast discussion before the first event at Sep 24, 5:08 PM CST, 2 hours 18 minutes earlier.
Area Forecast Discussion National Weather Service La Crosse WI 608 PM CDT Tue Sep 24 2019 .SHORT TERM...(Tonight through Wednesday Night) Issued at 140 PM CDT Tue Sep 24 2019 Current water vapor showing a strong mid-level trough moving through the Dakotas/northwest MN. This was pushing a cold front across MN with radar showing some showers and few storms firing along it. This front will continue to push southeast into the area by this evening with a corridor of 1500-3000J/kg of MUCAPE and 0-3km bulk shear around 30kt in place. Expecting storms to fire by 6 pm (lasting through 10 pm) as the front pushes in and as cap weakens. Question is still there as to whether the bulk of these storms will be surface based as the caps weakens -or- will the cap be strong enough for mainly elevated storms. This will dictate whether there will be a tornado threat (if they are indeed surface based) -or- mainly elevated hail/wind producers. Will keep an eye on all severe parameters with this situation. Breezy west winds and cooler conditions expected for Wednesday in the wake of the low and cold front. With lingering cooler cyclonic flow aloft, could see a few pop-up showers across northern WI. Look for highs in the mid 60s to lower 70s. High pressure builds in Wednesday night for clear and cool conditions. Plan on overnight lows mainly in the 40s -coldest in the sand country of central WI. .LONG TERM...(Thursday through Tuesday) Issued at 140 PM CDT Tue Sep 24 2019 High pressure will hold across the region through Thursday but then fairly fast west-northwest flow aloft ushers in low pressure across the Dakotas into MN Thursday night with push of warm air advection and moisture transport into our area. This should fuel a few showers and storms. Shower and storm chances continue into Friday as the cold front pushes through the area. Otherwise, look for highs once again in the 60s/lower 70s. Shower and storm chances will be seen this weekend into next week as upper flow becomes more southwesterly with embedded waves of low pressure. && .AVIATION...(For the 00Z TAFS through 00Z Wednesday evening) Issued at 608 PM CDT Tue Sep 24 2019 Closely watching showers and storms that have developed just west of the local area as expected. Based on current timing, those will advance east and impact RST roughly 01-03Z and LSE 02-04Z, though with some minor adjustments to timing still likely as storms near. Brief IFR conditions expected in heavier rainfall, and can't rule out some hail or brief wind gusts to 40+ knots in any storms, but with a rapid clearing trend expected once storms pass. Heading into Wednesday, some passing cumulus clouds are likely as cooler air aloft works through the region, with winds shifting west/northwesterly and gusting 20-25 knots at times. && .ARX WATCHES/WARNINGS/ADVISORIES... WI...None. MN...None. IA...None. && SHORT TERM...DAS LONG TERM...DAS AVIATION...Lawrence
Hazardous Weather Outlook National Weather Service La Crosse WI 219 PM CDT Tue Sep 24 2019 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-251930- Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- 219 PM CDT Tue Sep 24 2019 This Hazardous Weather Outlook is for portions of southeast Minnesota...northeast Iowa and southwest into central Wisconsin. .DAY ONE...Through Tonight Severe storms will be possible across the area between 6 PM and midnight tonight. The main threat with these storms will be large hail, but damaging winds and isolated tornadoes will also be possible. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There will be on and off thunderstorm chances Thursday night through Monday, with periodic heavy rain possible on Friday and from Sunday night into the middle of next week. .SPOTTER INFORMATION STATEMENT... Spotters may be needed this evening. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
759 PM CDT TUE SEP 24 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0758 PM TSTM WND GST ZUMBRO FALLS 44.28N 92.42W
09/24/2019 E80 MPH WABASHA MN PUBLIC
&&
CAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
800 PM CDT TUE SEP 24 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0759 PM LIGHTNING BLOOMING PRAIRIE 43.87N 93.04W
09/24/2019 DODGE MN LAW ENFORCEMENT
LIGHTNING STRIKE CAUSED STRUCTURE FIRE.
&&
CAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
801 PM CDT TUE SEP 24 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0757 PM TSTM WND GST 3 E AUSTIN 43.67N 92.92W
09/24/2019 M60 MPH MOWER MN AWOS
AWOS STATION KAUM AUSTIN MUNICIPAL AIRPORT.
&&
CAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
816 PM CDT TUE SEP 24 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0810 PM TSTM WND GST 3 NNW STEWARTVILLE 43.90N 92.50W
09/24/2019 M60 MPH OLMSTED MN ASOS
ASOS STATION KRST ROCHESTER INTERNATIONAL
AIRPORT.
&&
CAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
822 PM CDT TUE SEP 24 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0813 PM TSTM WND GST 3 NE ROCHESTER 44.04N 92.42W
09/24/2019 M41 MPH OLMSTED MN BROADCAST MEDIA
&&
CAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
823 PM CDT TUE SEP 24 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0807 PM TSTM WND GST 1 ENE DEXTER 43.73N 92.68W
09/24/2019 M65 MPH MOWER MN MESONET
MESONET STATION MN010 1 ENE DEXTER.
&&
CAThe La Crosse radar (KARX), 79 km away, was scanning. The volume nearest the first event began at 01:22 UTC.
11 thunderstorm wind, 1 tornado. Local standard time, as filed.
Several trees were blown down along County Highway E near Alma.
Several trees were blown down in Modena.
Trees and power lines were blown down in Eleva.
Trees and power lines were blown down in Dodge.
Trees and power lines were blown down in Osseo.
Trees and power lines were blown down in Galesville.
A tree was uprooted and blown down across a power line east of Price.
Trees and power lines were blown down north of Humbird.
Trees and power lines were blown down in Greenwood.
An EF1 tornado tracked across rural sections of central Clark County. The tornado touched down near the Black River southwest of Greenwood and then moved northeast before dissipating west of Loyal. Along its path, the tornado damaged trees, barns, silos, and crops. At least three cows were killed at one farm.
Trees and power lines were blown down in Loyal.
An estimated 60 mph wind gust occurred southwest of Spencer.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2019Every state in 2019This day in weather historyThe tornado archive for Wisconsin, 2019Warnings in Wisconsin, September 2019
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: 855797, 855796, 855799, 855801, 855800, 855802, 855803, 855805, 855806, 855818, 855807, 855804.