Alert archive / Wisconsin / Freeze Warnings in 2021
Freeze Warning 4, NWS La Crosse, WI
NWS La Crosse, WI issued this freeze warning at May 11, 2021, 1:45 PM CDT for 6 counties in Wisconsin. It took effect at May 12, 2021, 2:00 AM CDT. It was in force for 6 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 11, 2021, 1:45 PM CDT (18:45 UTC)
- In effect from
- May 12, 2021, 2:00 AM CDT
- Expired
- May 12, 2021, 8:00 AM CDT
- In force
- 6 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
The radar
The La Crosse radar (KARX), 86 km from the middle of the area, began a volume at 18:43 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, 6.8 hours before the alert went out and 184 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
- 1163 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
225 WWUS73 KARX 111845 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 145 PM CDT Tue May 11 2021 WIZ017-029-034-042-120245- /O.NEW.KARX.FZ.W.0004.210512T0700Z-210512T1200Z/ Taylor-Clark-Jackson-Monroe- Including the cities of Medford, Neillsville, Black River Falls, Sparta, and Tomah 145 PM CDT Tue May 11 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 7 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 24 to 30 expected. * WHERE...Taylor, Clark, Jackson and Monroe Counties. * WHEN...From 2 AM to 7 AM CDT Wednesday. * 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. && $$ IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-033-041- 043-044-053>055-061-120245- /O.NEW.KARX.FR.Y.0006.210512T0700Z-210512T1200Z/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-La Crosse-Juneau-Adams-Vernon-Crawford- Richland-Grant- Including the cities of Osage, Cresco, Decorah, Waukon, Charles City, New Hampton, Oelwein, Elkader, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Caledonia, Alma, Arcadia, Whitehall, La Crosse, Mauston, Friendship, Viroqua, Prairie Du Chien, Richland Center, and Platteville 145 PM CDT Tue May 11 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 7 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 31 to 35 will result in frost formation. * WHERE...Portions of central, southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...From 2 AM to 7 AM CDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Zapotocny
3 follow-up statements
208 WWUS73 KARX 120223 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 923 PM CDT Tue May 11 2021 WIZ043-044-121030- /O.UPG.KARX.FR.Y.0006.210512T0700Z-210512T1200Z/ /O.EXB.KARX.FZ.W.0004.210512T0700Z-210512T1300Z/ Juneau-Adams- Including the cities of Mauston and Friendship 923 PM CDT Tue May 11 2021 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 24 to 30 expected. * WHERE...Juneau and Adams Counties. * WHEN...From 2 AM to 8 AM CDT Wednesday. * IMPACTS...Sub-freezing temperatures will kill crops and unprotected 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. && $$ WIZ017-029-034-042-121030- /O.EXT.KARX.FZ.W.0004.210512T0700Z-210512T1300Z/ Taylor-Clark-Jackson-Monroe- Including the cities of Medford, Neillsville, Black River Falls, Sparta, and Tomah 923 PM CDT Tue May 11 2021 ...FREEZE WARNING NOW IN EFFECT FROM 2 AM TO 8 AM CDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 24 to 30 expected. * WHERE...Monroe, Jackson, Taylor and Clark Counties. * WHEN...From 2 AM to 8 AM CDT Wednesday. * IMPACTS...Sub-freezing temperatures will kill crops and unprotected sensitive vegetation, and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-033-041- 053>055-061-121030- /O.EXT.KARX.FR.Y.0006.210512T0700Z-210512T1300Z/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-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, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 923 PM CDT Tue May 11 2021 ...FROST ADVISORY NOW IN EFFECT FROM 2 AM TO 8 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 31 to 35 will result in frost formation. * WHERE...Portions of southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...From 2 AM to 8 AM CDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Boyne
350 WWUS73 KARX 120749 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 249 AM CDT Wed May 12 2021 WIZ017-029-034-042>044-121300- /O.CON.KARX.FZ.W.0004.000000T0000Z-210512T1300Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 249 AM CDT Wed May 12 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 24 to 30 expected. * WHERE...Monroe, Juneau, Adams, Jackson, Taylor and Clark Counties. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Sub-freezing temperatures will kill crops and unprotected sensitive vegetation, and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-033-041- 053>055-061-121300- /O.CON.KARX.FR.Y.0006.000000T0000Z-210512T1300Z/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-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, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 249 AM CDT Wed May 12 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 31 to 35 will result in frost formation. * WHERE...Portions of southwest and west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...Until 8 AM CDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
272 WWUS73 KARX 121257 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 757 AM CDT Wed May 12 2021 WIZ017-029-034-042>044-121400- /O.EXP.KARX.FZ.W.0004.000000T0000Z-210512T1300Z/ Taylor-Clark-Jackson-Monroe-Juneau-Adams- Including the cities of Medford, Neillsville, Black River Falls, Sparta, Tomah, Mauston, and Friendship 757 AM CDT Wed May 12 2021 ...FREEZE WARNING WILL EXPIRE AT 8 AM CDT THIS MORNING... Temperatures have warmed into the upper 30s and 40s, the freeze warning will be allowed to expire. $$ IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ032-033-041- 053>055-061-121400- /O.EXP.KARX.FR.Y.0006.000000T0000Z-210512T1300Z/ Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Buffalo-Trempealeau-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, Arcadia, Whitehall, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 757 AM CDT Wed May 12 2021 ...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING... Temperatures have warmed into the upper 30s and 40s, therefore, the frost advisory has been allowed to expire. $$ Zapotocny
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 1:45 PM CDT | Frost Advisory | ARX | Adams, Buffalo, Crawford, Grant, Juneau, La Crosse and 3 more | 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.