Heavy rain fell across portions of southeast Minnesota from April 12th into the 13th. Runoff from this rain caused some minor river flooding to occur on the Whitewater River in Whitewater State Park (Olmsted County).
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.
Heavy rain fell across portions of southeast Minnesota from April 12th into the 13th. Runoff from this rain caused some minor river flooding to occur on the Whitewater River in Whitewater State Park (Olmsted 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 Apr 12, 11:22 PM CST, 1 hour 6 minutes earlier.
Area Forecast Discussion National Weather Service La Crosse WI 1222 AM CDT Wed Apr 13 2022 .DISCUSSION...(This evening through Tuesday) Issued at 254 PM CDT Tue Apr 12 2022 Key Messages: - Gusty winds/scattered storms late this afternoon with hail potential - Severe weather risk this evening/tonight, highest west of the MS River - Strong, gusty winds likely on Thursday Tonight: Severe Storm Risk The main focus late this afternoon and tonight remains on severe storm potential. Preceding the surface low, gusty S/SE winds have developed in conjunction with strengthening low-level flow. Gusts have locally reached 45 to 50 mph in some areas so did issue a short wind advisory for areas west of the MS River. Additionally, showers and storms will continue to translate northeast with a slug of strong mid-level warm advection on the edge of the elevated instability axis through late afternoon. With the steepening mid- level lapse rates, any storms may produce some hail, with a few storms likely to produce hail to 1"+. Heading into this evening, the filling surface low will lift from eastern NE into southern MN with its associated warm front lifting north into the area. Despite the extensive low clouds north of the boundary, an airmass change will occur as the boundary lifts north with increasing dew points/temps. While a plume of elevated instability will lift north through the afternoon/evening as lapse rates steepen aloft, a pool of MLCAPE will spread north and east more gradually and weaken ahead of the low/cold front this evening/tonight. After the initial warm advection storms, the general expectation is for storms to develop late this afternoon closer to the triple point in western IA/eastern NE/southwest MN spreading east through evening and likely organizing into a linear band of storms by the time they approach. HREF UH paintballs show clustering across western IA/southern MN during the evening, with storms approaching the local area by late evening (10-11 pm), weakening as they track east into WI overnight. Scattered elevated storms also could form by early to mid evening near the warm front in northern IA/southern MN/northern WI as the low-level jet strengthens posing primarily a hail threat given the strong low-level stability/capping in the warm sector. There remains some uncertainty in the evolution/strength of the storms late this evening. RAP soundings show fairly stable/capped low-levels despite the moistening/increasing MLCAPE through the evening. The window for surface-based storms looks quite narrow, focused right ahead of the approaching front. This is when the risk for damaging winds or an isolated tornado would be maximized with any bowing segments/mesovortices, especially across far southwestern counties where HREF/RAP fields show SBCAPE/MLCAPE maximized over 1000 J/kg. Some severe weather risk could persist into western WI, although buoyancy will be on the decline overnight as storms move into this area. Despite the impressive low-level shear, the low-level thermodynamic profiles and late evening/overnight timing decreases confidence in the overall threat, especially with eastward extent, but it will be an evening to keep on eye on trends as storms begin to develop, given the rapid airmass change as warm, moist air advects north. Wednesday/Wednesday Night Upper level closed low over the Northern Plains States lifts slowly northeast into northern Minnesota Wednesday into Thursday. Several pieces of energy rotate around the closed upper level low into the Upper Mississippi River valley. Main surface front passes across the forecast area early Wednesday morning. This will push the deeper moisture transport/east of the forecast area during the day Wednesday. However...with pieces of energy rotating around the upper closed low...showers and potentially a few thunderstorms will linger mainly along and east of the Mississippi River Wednesday afternoon. Cooler temperatures will advect in behind the surface front and allow for temperatures to remain nearly steady or fall into the middle 40s to lower 50s by middle of Wednesday afternoon. Thursday Focus turns to the windy conditions across the forecast area Thursday. Combination of pressure gradient tightening and winds aloft mixing down to the surface will produce windy conditions across the forecast area. Both of the NAM/GFS Bufkit soundings show 45 to 50 knots at the top of the mixed layer. Expect wind gusts to be 40 to 50 miles per hour. Along with the windy conditions...rain/snow showers will develop Thursday afternoon and mainly over the northern half of the forecast area. Friday through Tuesday Main forecast concerns Friday through Tuesday are precipitation chances Sunday into Monday. Upper level closed low/trough slowly pulls east of the Upper Mississippi River valley and another shortwave trough will track into the Northern Plains States this weekend. The 12.12z deterministic GFS/ECMWF show some differences on the strength with the shortwave trough. This will have impacts on timing of precipitation chances. Depending on temperatures Sunday into Monday...light snow will continue to be possible across much of the forecast area. The deterministic models continue to show cooler airmass filtering in with the shortwave trough and into early next week. The 12.12z GFS/ECMWF indicate 925mb temperatures around 0 degrees celsius to minus 4 degrees celsius through the forecast period. Temperatures will remain well below normal...with highs mainly in the 40s. && .AVIATION...(For the 06Z TAFS through 06Z Wednesday night) Issued at 1222 AM CDT Wed Apr 13 2022 The line of the convection continues to make steady eastward progress and will be past KLSE by 13.07Z. Once the line moves past, there will be a period of some light rain with VFR conditions before the rain ends as MVFR ceilings move back in. These ceilings are then expected to remain for much of the day in the wrap around moisture behind the departing area of low pressure. These ceilings are then expected to move out late Wednesday afternoon with VFR conditions returning. && .ARX WATCHES/WARNINGS/ADVISORIES... WI...NONE. MN...NONE. IA...NONE. && DISCUSSION...DTJ/JM AVIATION...04
Hazardous Weather Outlook National Weather Service La Crosse WI 326 AM CDT Tue Apr 12 2022 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-131230- 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- 326 AM CDT Tue Apr 12 2022 This Hazardous Weather Outlook is for portions of southeast Minnesota...northeast Iowa and southwest into central Wisconsin. .DAY ONE...Today and Tonight Strong to severe storms are possible this evening and early tonight, mainly across northeast Iowa and southeast Minnesota. Hail and damaging winds would be the main threats along with a narrow window of opportunity for a few tornadoes. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Strong west to southwest winds develop on Thursday with gusts of 40 to 50 mph possible. Scattered snow showers are possible north of Interstate 90 that, when combined with the strong winds, may lead to brief visibility reductions. .SPOTTER INFORMATION STATEMENT... Severe weather reports may be needed this evening. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled. KDS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1216 AM CDT WED APR 13 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1147 PM TSTM WND DMG 2 W WINONA 44.05N 91.70W
04/12/2022 WINONA MN EMERGENCY MNGR
TREES AND POWER LINE DAMAGE
&&
SHEAPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1226 AM CDT WED APR 13 2022
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1159 PM HAIL HAWKEYE 42.94N 91.95W
04/12/2022 E0.75 INCH FAYETTE IA FIRE DEPT/RESCUE
&&
SHEASpecial Weather Statement
National Weather Service La Crosse WI
1227 AM CDT Wed Apr 13 2022
WIZ041-042-053-130600-
Vernon WI-La Crosse WI-Monroe WI-
1227 AM CDT Wed Apr 13 2022
...Strong thunderstorms will impact portions of eastern La Crosse,
central Vernon and western Monroe Counties through 100 AM CDT...
At 1226 AM CDT, trained weather spotters reported strong
thunderstorms along a line extending from near North Bend to near
Bangor to 9 miles east of New Albin. Movement was east at 50 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Trained weather spotters.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Strong thunderstorms will be near...
Bangor around 1230 AM CDT.
Sparta, Viroqua, Cashton and Cataract around 1240 AM CDT.
Fort Mc Coy around 1250 AM CDT.
This includes Interstate 90 in Wisconsin between mile markers 13 and
36.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
southwestern and west central Wisconsin.
&&
LAT...LON 4355 9066 4355 9067 4350 9067 4346 9068
4344 9115 4383 9107 4407 9108 4407 9097
4409 9097 4411 9060 4381 9059
TIME...MOT...LOC 0526Z 268DEG 46KT 4405 9106 4384 9104 4351 9110
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
SkowSpecial Weather Statement
National Weather Service La Crosse WI
1232 AM CDT Wed Apr 13 2022
IAZ011-029-030-WIZ053>055-061-130600-
Clayton IA-Fayette IA-Allamakee IA-Richland WI-Vernon WI-Crawford WI-
Grant WI-
1232 AM CDT Wed Apr 13 2022
...Strong thunderstorms will impact far eastern Iowa and southwest
Wisconsin through 100 AM CDT...
At 1231 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 9 miles northeast of Lansing to Marquette to
near Strawberry Point. Movement was east at 55 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Strong thunderstorms will be near...
Prairie Du Chien, McGregor and Marquette around 1235 AM CDT.
Guttenberg, Boscobel and Cassville around 100 AM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
northeastern Iowa...and southwestern Wisconsin.
&&
LAT...LON 4265 9176 4306 9138 4344 9118 4346 9057
4312 9061 4265 9095
TIME...MOT...LOC 0531Z 259DEG 48KT 4343 9106 4304 9120 4265 9159
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
SkowSpecial Weather Statement
National Weather Service La Crosse WI
1252 AM CDT Wed Apr 13 2022
IAZ030-WIZ042>044-053>055-061-130615-
Clayton IA-Juneau WI-Richland WI-Vernon WI-Adams WI-Crawford WI-
Monroe WI-Grant WI-
1252 AM CDT Wed Apr 13 2022
...A line of strong thunderstorms will impact southwest Wisconsin
through 115 AM CDT...
At 1250 AM CDT, automated stations reported strong thunderstorms
along a line extending from 7 miles north of Tomah to near Boscobel
to near Colesburg. Movement was east at 60 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Automated weather observations.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Strong thunderstorms will be near...
Tomah around 1255 AM CDT.
Muscoda around 105 AM CDT.
Necedah around 110 AM CDT.
Dickeyville around 115 AM CDT.
This includes the following highways...
Interstate 94 between mile markers 137 and 147.
Interstate 90/94 between mile markers 46 and 80.
Interstate 90 in Wisconsin between mile markers 36 and 45.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4264 9071 4268 9090 4265 9090 4264 9128
4320 9086 4411 9057 4409 8979 4364 8989
4364 9031 4355 9031 4355 9019 4317 9019
4321 9029 4320 9043 4251 9042 4251 9064
TIME...MOT...LOC 0550Z 265DEG 53KT 4410 9050 4321 9076 4266 9118
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
SkowSpecial Weather Statement
National Weather Service La Crosse WI
117 AM CDT Wed Apr 13 2022
IAZ030-WIZ043-044-055-061-130645-
Clayton IA-Juneau WI-Richland WI-Adams WI-Grant WI-
117 AM CDT Wed Apr 13 2022
...Strong thunderstorms will impact portions of southwest Wisconsin
through 145 AM CDT...
At 117 AM CDT, trained weather spotters reported strong thunderstorms
along a line extending from near Necedah to near Muscoda to near Holy
Cross. Movement was east at 50 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Trained weather spotters.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Strong thunderstorms will be near...
Necedah around 120 AM CDT.
Dellwood around 125 AM CDT.
Friendship and Adams around 135 AM CDT.
Dickeyville around 140 AM CDT.
Cuba City and Hazel Green around 145 AM CDT.
This includes Interstate 90/94 between mile markers 59 and 86.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4264 9073 4268 9090 4265 9090 4265 9106
4319 9045 4355 9032 4355 9021 4356 9020
4364 9019 4364 9029 4414 9012 4410 8960
4364 8960 4317 9019 4321 9029 4320 9043
4251 9042 4251 9064
TIME...MOT...LOC 0617Z 277DEG 44KT 4407 9008 4319 9038 4265 9101
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
SkowThe national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Runoff after a heavy rain event pushed the Whitewater River out of its banks in the Whitewater State Park. The river crested almost a foot above flood stage at 14.3 feet.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2022Every state in 2022This day in weather historyWarnings in Minnesota, April 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: 1020165.