During the evening hours on June 12th, an individual storm cell produced some strong winds across portions of Floyd County which resulted in sporadic tree damage.
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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 ARX wrote it up.
During the evening hours on June 12th, an individual storm cell produced some strong winds across portions of Floyd County which resulted in sporadic tree damage.
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 Jun 12, 6:22 PM CST, 8 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service La Crosse WI 722 PM CDT Thu Jun 12 2025 .KEY MESSAGES... - Rain focus turns northward tonight, mostly north of I-94. Smaller rain chances (20-40%) continue south of there for the rest of the afternoon/evening, repeating for Fri afternoon/evening. - A smattering of low end rain chances for the weekend (20-40%), but there will be more dry periods than wet. A return to a more active pattern (aka, rain chances) for the start of the new work week. && .DISCUSSION... Issued at 130 PM CDT Thu Jun 12 2025 - REST OF THE AFTERNOON/TONIGHT: the focus for widespread rains turns northward tonight as a shortwave trough tracks from the northern plains to across northern MN/northern WI. The low level jet/850 mb moisture transport noses into the shortwave, while the system transitions east along an elevated 850 mb west-east running front over northern WI. An area of showers and a few storms will blossom across central MN this evening, spreading east across northern WI overnight. Locally, most of the pcpn chances will be north of I-94. To the south, the front that sparked the storms across IA yesterday is still wavering from southern MN southeast into northeast IA. Instability has pooled south of the front, and as daytime heating peaks the CAMS suggest spotty showers/storms could spark in response to the lift/instability. Little shear to work with, and the instability is marginally. Whatever storm could get going would likely be pulsy in nature. A stronger storm could produce small hail, enhanced wind gusts. Not anticipating severe storms. -FRIDAY: pcpn will be ongoing to the north and likely continue for the better part the day (again, locally north of I-94). To the south, that same sfc front is still hanging around, but will get some push east as a ripple in the upper level flow slips east across MN. Meanwhile, farther south over the mid mississippi river valley, another, but more defined shortwave trough, will be making slow profess east. Spiral bands on the northside of the trough center could swing far enough north to graze parts of northeast IA/southwest WI. Its a "mess" with a hodgepodge of forcing mechanisms, nothing strong, but will provide enough lift along with increasing instability south of I-90 for more shower/storm chances in the afternoon/evening (mostly 20-40%). - WEEKEND INTO NEXT WEEK: broad ridging still on tap for the weekend, but not stout and doesn't look like much of a barrier to eastward progression of any various bits of shortwave energy/mcvs. GEFS/EPS/NAM12 have suggested more dry than not for the weekend, however - at least until Sunday night. Moving into the new week the upper level flow looks like it will flatten and be more zonal in orientation. Various shortwave troughs, mcvs, any lingering frontal boundaries will provide more shower and storm chances. The setup is rather messy, chaotic in nature and the models don't have "clear cut" scenarios to latch on to. This lowers confidence in location/timing for the higher end chances, but Mon- Wed continues to favor rain chances across the region. Expect more refinement to the expectations as we move through the weekend. && .AVIATION /00Z TAFS THROUGH 00Z SATURDAY/... Issued at 711 PM CDT Thu Jun 12 2025 Primary TAF concern is immediate term storms slowly shifting east in the far southwestern periphery of the forecast area near KAUM. Storms that have exhibited a slight northern progression have exhibited weakening, affecting KRST TAF site. Have accounted for this with VCTS. The scattered nature of storms combined with weakening trend limits overall confidence. As the frontal boundary shifts north MVFR ceilings move in primarily affecting sites west of the Mississippi River Valley through Friday morning. && .ARX WATCHES/WARNINGS/ADVISORIES... WI...None. MN...None. IA...None. && DISCUSSION...Rieck AVIATION...JAR
Hazardous Weather Outlook National Weather Service La Crosse WI 251 AM CDT Thu Jun 12 2025 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-131100- 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- 251 AM CDT Thu Jun 12 2025 This Hazardous Weather Outlook is for portions of southeast Minnesota...northeast Iowa...and southwest into central Wisconsin. .DAY ONE... Today and Tonight Thunderstorms will be possible this afternoon and tonight. The greatest chance will be south of Interstate 90 where hail up to 1 inch in diameter and gusty winds will be the primary threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Additional storms are expected on Friday and Friday night and from Sunday night into Wednesday. .SPOTTER INFORMATION STATEMENT... No action needed. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled. Boyne
Preliminary Local Storm Report
National Weather Service La Crosse WI
242 PM CDT Thu Jun 12 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0800 AM Rain Eastman 43.16N 91.02W
06/12/2025 M0.57 Inch Crawford WI Public
Rain ended around 7:30 this morning.
&&
KBThe La Crosse radar (KARX), 147 km away, was scanning. The volume nearest the first event began at 00:27 UTC.
3 thunderstorm wind. Local standard time, as filed.
The public reported a third of a large willow tree blown down in Floyd.
Local broadcast media relayed a photo of a fallen large tree in Floyd.
A Rochester news station passed on photos of two mature ponderosa pines that fell onto Highway 218 about 2 miles north of Floyd. Time estimated on radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2025Every state in 2025This day in weather historyWarnings in Iowa, June 2025
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: 1276504, 1276505, 1276506.