A line of thunderstorms that developed over northern Iowa Monday evening, May 30th, moved northeast and re-intensified over west central Wisconsin late in the night, during the very early hours of May 31. This line produced wind damage with a few trees blown down or uprooted from near Eau Claire/Chippewa Falls, northeast toward Cornell.
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 MPX wrote it up.
A line of thunderstorms that developed over northern Iowa Monday evening, May 30th, moved northeast and re-intensified over west central Wisconsin late in the night, during the very early hours of May 31. This line produced wind damage with a few trees blown down or uprooted from near Eau Claire/Chippewa Falls, northeast toward Cornell.
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 Twin Cities, MN wrote its last area forecast discussion before the first event at May 30, 11:00 PM CST, 1 hour 26 minutes earlier.
Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 1200 AM CDT Tue May 31 2022 .UPDATE... Issued at 1115 PM CDT Mon May 30 2022 Updated to include 06z aviation discussion below. In addition, the "main event" of the day with the tornado outbreak in western MN has passed with only a narrow line of convection over far SE MN which may try to make a run for our western WI counties after midnight. It is in these western WI counties where the severe thunderstorm watch remains until 2am CT where there could be some potential for storms to rise to the level of being strong/severe. Strong winds and hail to quarter-size remain the main threats. Once this line passes, which will coincide with the cold front moving through, temperatures will drop to the 60s with dewpoints down to the 50s within a much more stable airmass. Some weak showers are possible in western and central MN during the early morning hours and first half of Tuesday but convection is expected to be a non-issue. && .DISCUSSION...(This evening through Monday) Issued at 320 PM CDT Mon May 30 2022 Our "main event" is starting to get going with storms near the MN/SD border at 3pm. This is a rare, high- end environment that will be capable of producing a severe weather outbreak across the MPX forecast area. The first concern is the potential for a few supercells to develop in the warm sector ahead of the approaching cold front. The WoFS has picked up a on these supercells forming over northwest IA/southwest MN and moving northeast into central MN by 21Z. This potential will be monitored closely as they'd be capable of producing all severe hazards including tornadoes. However, recent trends from the WoFS has been to back down on the intensity of these supercells, instead showing a severe QLCS coming out of SD. The storms that form along the cold front will be capable of producing all severe hazards too. This will track into eastern Minnesota into western Wisconsin later this evening. Storm mode is expected to transition from embedded supercells along the cold front to a QLCS- like linear set up. The LLJ will enhance low level shear this evening across western WI. This is concerning as it could promote an environment capable of a QLCS tornado threat this evening/early tonight. Areas in the warm sector continue to recover with temperatures warming back into the low/mid 80s. The mid level clouds have likely helped our dew points stay in the mid to upper 60s across southern MN, with less mixing due to stubborn cloud cover. This has kept our LCLs on the lower side and if this trend continues, would be more favorable for potential tornado development. Steep mid-level lapse rates of 8.0C/km or greater are located with the area of best CAPE with values of 2500J/kg or greater. KMPX VAD profile shows a highly sheared environment present with 25+ kts of 0-1km shear and 300+ m2/s2 0-1km storm relative helicity. These storms will be moving quickly with storm motions likely 60s kts or greater so it will be important to plan ahead and act quickly after receiving any severe or tornado warnings this afternoon. Once again, this environment has analogs to some of historical, higher-end severe weather outbreaks across the Upper Midwest. Final concern for this evening, behind the severe threat, is a threat for widespread severe/damaging wind over southwest MN. This is a sting jet setup within the dryslot that will come in to the south of the surface low. This is over Nebraska now, where we have seen the occasional 50-60 mph wind gust. This is only expected to intensify between 00z and 06z over southwest MN, the RAP showing h85 winds increasing to nearly 80 kts. The big question is can we mix any of this down to the surface. Forecast soundings for RWF say no, but several CAMs do and they show the potential for a swath of 50-70 mph winds over southwest MN. This is something we'll watch closely as we may need to transition the Tornado Watch to a High Wind Warning. The upper level low that brought the severe weather to the area will remain mostly stationary in south central Canada through the week. A cold front Thursday night may spark a few showers with the models showing the best chance for any measurable precipitation to be in west central Wisconsin. A better chance for some measurable precipitation comes this weekend with a boundary getting hung up somewhere in the vicinity of the Iowa/Minnesota border on Saturday, and models are in pretty good agreement with an overrunning precipitation type of event affecting southern Minnesota. Late in the period the upper low in southern Canada elongates and starts to depart eastward and a trough may slide into the area and offer another chance for showers on Monday. The biggest change for in the long term will be the temperatures. Highs each day will be in the 60s and 70s, with lows each morning in the 40s and 50s. && .AVIATION...(For the 06Z TAFS through 06Z Tuesday night) Issued at 1115 PM CDT Mon May 30 2022 Main issues through this TAF duration: LLWS at the start with continued strong low level jetting, few showers in west-central MN the first half of Tuesday, potential for MVFR ceilings midday. CB/TS not expected at any of the terminals, though the only site with possibly a chance is KEAU during the first couple hours as a line of TSRA moves northeast from SE MN. Otherwise, clouds will fill in across the region overnight through Tuesday, with subsidence and a relatively moisture airmass in place being able to produce MVFR ceilings for most of the day before VFR conditions return by Tuesday evening. After a relative lull in surface winds overnight immediately post-front, SW to W winds will increase within a tightened pressure gradient environment to near 20G30kt before diminishing Tuesday evening. KMSP...No precipitation expected throughout this TAF duration (potentially a few light rain showers midday but chances are too low for inclusion at this point). Clouds will increase but am expecting them to remain within VFR, but MVFR cannot be ruled out Tuesday afternoon briefly. /OUTLOOK FOR KMSP/ Wed...VFR. Wind NW 10 kts. Thu...VFR. Wind W 10-15 kts. Fri...VFR. Wind W 5-10 kts. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. && UPDATE...JPC DISCUSSION...BPH/MPG/CEO AVIATION...JPC
Hazardous Weather Outlook National Weather Service Twin Cities/Chanhassen MN 1207 AM CDT Tue May 31 2022 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014-015-023>025- 010515- Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington- Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota- Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth- Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-St. Croix- Pierce-Dunn- 1207 AM CDT Tue May 31 2022 This Hazardous Weather Outlook is for portions of central and southern Minnesota, and west central Wisconsin. .DAY ONE...Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... SKYWARN spotter activation will not be needed. WIZ016-026>028-010515- Rusk-Pepin-Chippewa-Eau Claire- 1207 AM CDT Tue May 31 2022 This Hazardous Weather Outlook is for portions of northwest Wisconsin and west central Wisconsin. .DAY ONE...Tonight. A few strong or severe thunderstorms are still possible over west central Wisconsin through 2 AM. The main hazard is damaging winds, with a lesser threat of large hail. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... SKYWARN spotter activation will not be needed.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
917 PM CDT MON MAY 30 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0720 PM TSTM WND GST 2 ESE CAMBRIDGE 45.56N 93.19W
05/30/2022 M63 MPH ISANTI MN TRAINED SPOTTER
TIME ESTIMATED.
&&
MKMPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
952 PM CDT MON MAY 30 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0725 PM TSTM WND DMG 3 NE BOYD 44.89N 95.86W
05/30/2022 LAC QUI PARLE MN PUBLIC
100 YEAR OLD PINE TREE DOWN. TIME ESTIMATED.
&&
MKMPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
956 PM CDT MON MAY 30 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0620 PM TSTM WND DMG 5 SSE DASSEL 45.02N 94.27W
05/30/2022 MEEKER MN PUBLIC
SHED DAMAGED. TREE ON VEHICLE. REPORTED NEAR
LAMSON VIA TWITTER. PHOTO INCLUDED. TIME
ESTIMATED.
&&
MKMPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1009 PM CDT MON MAY 30 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0826 PM NON-TSTM WND GST 2 SW ALEXANDRIA 45.87N 95.40W
05/30/2022 M56 MPH DOUGLAS MN ASOS
ASOS STATION KAXN ALEXANDRIA MN ASOS.
&&PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1219 AM CDT TUE MAY 31 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0725 PM TSTM WND DMG 1 ESE CAMBRIDGE 45.56N 93.21W
05/30/2022 ISANTI MN TRAINED SPOTTER
18 INCH TREE SNAPPED OFF AND LARGE BRANCH
DOWN.
&&
JRBSpecial Weather Statement
National Weather Service Twin Cities/Chanhassen MN
103 AM CDT Tue May 31 2022
WIZ025>028-310700-
Chippewa WI-Dunn WI-Eau Claire WI-Pepin WI-
103 AM CDT Tue May 31 2022
...A thunderstorm with gusty winds will impact portions of
northeastern Pepin, southeastern Dunn, Chippewa and Eau Claire
Counties through 200 AM CDT...
At 102 AM CDT, Doppler radar was tracking a strong thunderstorm near
Modena, or 8 miles southwest of Mondovi, moving northeast at 45 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fall Creek and Augusta.
This includes the following highways...
Interstate 94 in Wisconsin between mile markers 44 and 86.
U.S. Highway 53 between mile markers 86 and 108.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
west central Wisconsin.
&&
LAT...LON 4460 9201 4490 9192 4506 9158 4519 9092
4460 9093
TIME...MOT...LOC 0602Z 241DEG 38KT 4450 9181
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
JRBThe La Crosse radar (KARX), 111 km away, was scanning. The volume nearest the first event began at 06:25 UTC.
5 thunderstorm wind. Local standard time, as filed.
A large tree branch blew off a tree and landed on a car.
A large tree was blown down near Albertville.
A couple of large trees blew down in Chippewa Falls.
A large tree blew down in Lake Wissota State Park. There was a public weather wind sensor that measured 68 mph wind gust near the area.
A large tree was uprooted east of Cornell.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2022Every state in 2022This day in weather historyWarnings in Wisconsin, May 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: 1019240, 1019241, 1019242, 1019243, 1019244.