Alert archive / Wisconsin / Flood Watches in 2026

Flood Watch 4, NWS La Crosse, WI

April 15, 20267 counties in Wisconsin

NWS La Crosse, WI issued this flood watch at Apr 15, 2026, 12:16 PM CDT for 7 counties in Wisconsin. It took effect at Apr 15, 2026, 4:00 PM CDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued: Apr 15, 2026, 12:16 PM CDT (17:16 UTC)
In effect from: Apr 15, 2026, 4:00 PM CDT
Expired: Apr 16, 2026, 3:00 AM CDT
In force: 11 hr
Issued by: NWS La Crosse, WI
Flood severity: None

Counties Adams County, WI, Crawford County, WI, Grant County, WI, Juneau County, WI, Monroe County, WI, Richland County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 64 km from the middle of the area, began a volume at 17:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 5.3 hours before the alert went out and 287 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 937 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flood watch went out, 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 this flood watch went out at Apr 15, 5:51 AM CDT, 6 hours 25 minutes earlier.

Area forecast discussion, Apr 15, 5:51 AM CDT, 6 hours 25 minutes before

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Hazardous weather outlook, Apr 15, 4:19 AM CDT, 7 hours 57 minutes before

Hazardous Weather Outlook
National Weather Service La Crosse WI
419 AM CDT Wed Apr 15 2026

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-161330-
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-
419 AM CDT Wed Apr 15 2026

This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.

.DAY ONE...Today and Tonight

Severe storms could affect parts of the area this afternoon and
evening, mainly over northeast Iowa and southwest Wisconsin.
Large hail of 2 inches in diameter or greater, damaging winds of
60 to 70 mph, and locally heavy rain will be the main impacts.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The threat for severe weather returns for Friday as a line of
storms moves through the region. How far north along this line the
severe weather threat extends and the exact hazards will be
refined in the coming days.

.SPOTTER INFORMATION STATEMENT...

Spotter reports may be needed this afternoon and again Friday
afternoon.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

KDS

In the hours before

Local storm report, Apr 15, 7:36 AM CDT, 4 hours 40 minutes before

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Local storm report, Apr 15, 7:44 AM CDT, 4 hours 32 minutes before

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Local storm report, Apr 15, 8:41 AM CDT, 3 hours 35 minutes before

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Local storm report, Apr 15, 8:43 AM CDT, 3 hours 33 minutes before

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Local storm report, Apr 15, 8:44 AM CDT, 3 hours 32 minutes before

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Local storm report, Apr 15, 10:15 AM CDT, 2 hours 1 minute before

Preliminary Local Storm Report
National Weather Service La Crosse WI
1015 AM CDT Wed Apr 15 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0737 AM     Flood            2 ESE Wyeville          44.02N 90.35W
04/15/2026                   Monroe             WI   Emergency Mngr

            Water from Lemonweir River over the roadway
            at County Rd PP and Excelsior. Road is
            closed.

&&

JAW

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 14, 11:27 PM CDT	Severe Thunderstorm Warning	ARX	Adams	18 min
Apr 15, 3:25 AM CDT	Dense Fog Advisory	ARX	Adams, Juneau, Richland	6 hr
Apr 15, 3:50 AM CDT	River Flood Watch	ARX	Grant, Iowa, Richland	25 hr
Apr 15, 9:47 AM CDT	Areal Flood Warning	ARX	Juneau	72 hr
Apr 15, 9:56 AM CDT	Areal Flood Warning	ARX	Monroe	72 hr
Apr 15, 10:00 AM CDT	River Flood Watch	ARX	Crawford	6 days
Apr 15, 10:00 AM CDT	River Flood Warning	ARX	Richland, Vernon	71 hr
Apr 15, 10:00 AM CDT	River Flood Warning	ARX	Vernon	35 hr
Apr 15, 4:10 PM CDT	Severe Thunderstorm Warning	ARX	Crawford	33 min
Apr 15, 4:48 PM CDT	Special Weather Statement	ARX	Grant, Richland	57 min
Apr 15, 5:12 PM CDT	Severe Thunderstorm Warning	ARX	Grant	33 min
Apr 15, 5:36 PM CDT	Areal Flood Warning	ARX	Juneau	30 hr

Nearby

Flood Watches in Wisconsin, 2026 Every flood watch in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.