Alert archive / Wisconsin / Freeze Warnings in 2021
Freeze Warning 1, NWS La Crosse, WI
NWS La Crosse, WI issued this freeze warning at May 7, 2021, 1:37 PM CDT for 7 counties in Wisconsin. It took effect at May 8, 2021, 12:00 AM CDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 7, 2021, 1:37 PM CDT (18:37 UTC)
- In effect from
- May 8, 2021, 12:00 AM CDT
- Expired
- May 8, 2021, 8:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS La Crosse, WI
Counties Adams County, WI, Clark County, WI, Jackson County, WI, Juneau County, WI, Monroe County, WI, Taylor County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 78 km from the middle of the area, began a volume at 18:39 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 6.6 hours before the alert went out and 194 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
287 WWUS73 KARX 071837 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 137 PM CDT Fri May 7 2021 WIZ017-029-033-034-042>044-080245- /O.NEW.KARX.FZ.W.0001.210508T0500Z-210508T1300Z/ Taylor-Clark-Trempealeau-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Arcadia, Whitehall, Black River Falls, Sparta, Tomah, Mauston, and Friendship 137 PM CDT Fri May 7 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Sub-freezing temperatures in the mid to upper 20s. * WHERE...Taylor, Clark, Trempealeau, Jackson, Monroe, Juneau and Adams Counties. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-041- 053>055-061-080245- /O.NEW.KARX.FR.Y.0002.210508T0500Z-210508T1300Z/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-La Crosse-Vernon-Crawford-Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 137 PM CDT Fri May 7 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Temperatures in the lower 30s will result in frost formation. * WHERE...Portions of southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost could damage sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
1 follow-up statement
225 WWUS73 KARX 080146 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 846 PM CDT Fri May 7 2021 WIZ017-029-033-034-042>044-081300- /O.CON.KARX.FZ.W.0001.210508T0500Z-210508T1300Z/ Taylor-Clark-Trempealeau-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Arcadia, Whitehall, Black River Falls, Sparta, Tomah, Mauston, and Friendship 846 PM CDT Fri May 7 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Sub-freezing temperatures in the mid to upper 20s. * WHERE...Monroe, Juneau, Adams, Trempealeau, Jackson, Taylor and Clark Counties. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-041- 053>055-061-081300- /O.CON.KARX.FR.Y.0002.210508T0500Z-210508T1300Z/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-La Crosse-Vernon-Crawford-Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 846 PM CDT Fri May 7 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Temperatures in the low to mid 30s will result in frost formation. * WHERE...Portions of southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 1:37 PM CDT | Frost Advisory | ARX | Buffalo, Crawford, Grant, La Crosse, Richland, Vernon | 18 hr |
Nearby
Freeze Warnings in Wisconsin, 2021Every freeze warning in 2021
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.