textproduct: La Crosse

DISCUSSION

Issued at 1231 AM CDT Mon May 11 2026

Rain Potential Late Monday Night Through Tuesday Morning:

An upper level wave seen traversing the southern Canadian Rockies tonight on GOES water vapor imagery loops will cause local widespread preciptiation potential initially late Monday night through Tuesday morning. As the wave shifts east through Monday, unification with meager CONUS Rocky Mountain Low cyclogenesis causes a more meridional, southeast, dive near or just northeast of the local forecast area. Current diurnal timing limits overall instability whilst the rapid progression limits duration of 75th percentile 0.8" PWATs. Overall amounts of 0.25"+ more likely closer to the low center across the northern half of the forecast area into northern Minnesota and Wisconsin.

Warm Weekend and Early Next Week:

Initial ridge axis appendage progresses over the forecast area for the start of the week, ushering in upper 70 to low 80 degree temperatures for some of the local forecast area Tuesday. A short cool down Wednesday quickly comes to an end for Thursday as the anomalous ridge (90th percentile SPC RAOB Climatology) axis is expected to shift east through the Central Plains.

While current confidence is low regarding exact temperatures as the local forecast area is expected to be on the northeastern periphery of near record temperatures, current models suggest low to mid 80 degree high temperatures for Friday through Monday next week.

AVIATION /06Z TAFS THROUGH 06Z TUESDAY/

Issued at 1231 AM CDT Mon May 11 2026

It will be mostly clear through the overnight and Monday. As a low pressure system approaches the area from the Northern Plains, the high clouds will gradually increase on Monday evening. In addition, as the surface pressure gradient increases on Monday evening, southeast winds will climb into the 10 to 20 knot range. Winds gusts in southeast Minnesota and northeast Iowa will climb into the 20 to 30 knot range.

ARX WATCHES/WARNINGS/ADVISORIES

WI...Frost Advisory until 8 AM CDT this morning for WIZ032-041- 053>055-061. Freeze Warning until 8 AM CDT this morning for WIZ017-029-033- 034-042>044. MN...Frost Advisory until 8 AM CDT this morning for MNZ079-086>088- 094>096. IA...Frost Advisory until 8 AM CDT this morning for IAZ008>011-018- 019-029-030.