Alert archive / Minnesota / Freeze Warnings in 2021
Freeze Warning 6, NWS La Crosse, WI
NWS La Crosse, WI issued this freeze warning at Oct 21, 2021, 3:07 AM CDT for Buffalo County, Trempealeau County, Wisconsin; 6 counties in Minnesota; 6 counties in Iowa. It took effect at Oct 22, 2021, 1:00 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
- Oct 21, 2021, 3:07 AM CDT (08:07 UTC)
- In effect from
- Oct 22, 2021, 1:00 AM CDT
- Expired
- Oct 22, 2021, 9:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS La Crosse, WI
Counties Chickasaw County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Buffalo County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 85 km from the middle of the area, began a volume at 08:07 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 00:00Z, 8.1 hours before the alert went out and 171 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
- 575 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 167 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
625 WWUS73 KARX 210807 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 307 AM CDT Thu Oct 21 2021 IAZ008>010-018-019-029-MNZ079-086>088-094-095-WIZ032-033-211615- /O.NEW.KARX.FZ.W.0006.211022T0600Z-211022T1400Z/ Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Fayette-Wabasha-Dodge- Olmsted-Winona-Mower-Fillmore-Buffalo-Trempealeau- Including the cities of Osage, Cresco, Decorah, Charles City, New Hampton, Oelwein, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Alma, Arcadia, and Whitehall 307 AM CDT Thu Oct 21 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT FRIDAY... * WHAT...Temperatures will fall to around 30 late tonight. This will result in freeze which may end the growing season. * WHERE...Portions of west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...From 1 AM to 9 AM CDT Friday. * IMPACTS...Freeze conditions will kill 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. && $$ IAZ011-030-MNZ096-WIZ041-053>055-061-211615- /O.NEW.KARX.FR.Y.0012.211022T0600Z-211022T1400Z/ Allamakee-Clayton-Houston-La Crosse-Vernon-Crawford-Richland- Grant- Including the cities of Waukon, Elkader, Caledonia, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 307 AM CDT Thu Oct 21 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT FRIDAY... * WHAT...Temperatures will fall to around freezing late tonight. This will result in frost formation. * WHERE...In Wisconsin, La Crosse, Vernon, Crawford, Richland and Grant Counties. In Iowa, Allamakee and Clayton Counties. In Minnesota, Houston County. * WHEN...From 1 AM to 9 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Boyne
3 follow-up statements
133 WWUS73 KARX 211526 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 1026 AM CDT Thu Oct 21 2021 IAZ008>010-018-019-029-MNZ079-086>088-094-095-WIZ032-033-221400- /O.CON.KARX.FZ.W.0006.211022T0600Z-211022T1400Z/ Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Fayette-Wabasha-Dodge- Olmsted-Winona-Mower-Fillmore-Buffalo-Trempealeau- Including the cities of Osage, Cresco, Decorah, Charles City, New Hampton, Oelwein, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Alma, Arcadia, and Whitehall 1026 AM CDT Thu Oct 21 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT FRIDAY... * WHAT...Temperatures will fall to around 30 late tonight. This will result in freeze which may end the growing season. * WHERE...Portions of west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...From 1 AM to 9 AM CDT Friday. * 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. && $$ IAZ011-030-MNZ096-WIZ041-053>055-061-221400- /O.CON.KARX.FR.Y.0012.211022T0600Z-211022T1400Z/ Allamakee-Clayton-Houston-La Crosse-Vernon-Crawford-Richland- Grant- Including the cities of Waukon, Elkader, Caledonia, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 1026 AM CDT Thu Oct 21 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT FRIDAY... * WHAT...Temperatures will fall to around freezing late tonight. This will result in frost formation. * WHERE...In Wisconsin, Grant, Richland, Crawford, Vernon and La Crosse Counties. In Iowa, Allamakee and Clayton Counties. In Minnesota, Houston County. * WHEN...From 1 AM to 9 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
497 WWUS73 KARX 220800 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 300 AM CDT Fri Oct 22 2021 IAZ008>010-018-019-029-MNZ079-086>088-094-095-WIZ032-033-221400- /O.CON.KARX.FZ.W.0006.000000T0000Z-211022T1400Z/ Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Fayette-Wabasha-Dodge- Olmsted-Winona-Mower-Fillmore-Buffalo-Trempealeau- Including the cities of Osage, Cresco, Decorah, Charles City, New Hampton, Oelwein, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Alma, Arcadia, and Whitehall 300 AM CDT Fri Oct 22 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Temperatures will fall to around 30 late tonight. This will result in freeze which may end the growing season. * WHERE...Portions of west central Wisconsin, north central and northeast Iowa and southeast Minnesota. * WHEN...From 1 AM to 9 AM CDT Friday. * 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. && $$ IAZ011-030-MNZ096-WIZ041-053>055-061-221400- /O.CON.KARX.FR.Y.0012.000000T0000Z-211022T1400Z/ Allamakee-Clayton-Houston-La Crosse-Vernon-Crawford-Richland- Grant- Including the cities of Waukon, Elkader, Caledonia, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 300 AM CDT Fri Oct 22 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Temperatures will fall to around freezing late tonight. This will result in frost formation. * WHERE...In Wisconsin, Grant, Richland, Crawford, Vernon and La Crosse Counties. In Iowa, Allamakee and Clayton Counties. In Minnesota, Houston County. * WHEN...From 1 AM to 9 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
549 WWUS73 KARX 221350 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 850 AM CDT Fri Oct 22 2021 IAZ008>010-018-019-029-MNZ079-086>088-094-095-WIZ032-033-221500- /O.EXP.KARX.FZ.W.0006.000000T0000Z-211022T1400Z/ Mitchell-Howard-Winneshiek-Floyd-Chickasaw-Fayette-Wabasha-Dodge- Olmsted-Winona-Mower-Fillmore-Buffalo-Trempealeau- Including the cities of Osage, Cresco, Decorah, Charles City, New Hampton, Oelwein, Wabasha, Dodge Center, Rochester, Winona, Austin, Preston, Alma, Arcadia, and Whitehall 850 AM CDT Fri Oct 22 2021 ...FREEZE WARNING WILL EXPIRE AT 9 AM CDT THIS MORNING... Temperatures have risen above freezing so the Freeze Warning for this morning will be allowed to expire. $$ IAZ011-030-MNZ096-WIZ041-053>055-061-221500- /O.EXP.KARX.FR.Y.0012.000000T0000Z-211022T1400Z/ Allamakee-Clayton-Houston-La Crosse-Vernon-Crawford-Richland- Grant- Including the cities of Waukon, Elkader, Caledonia, La Crosse, Viroqua, Prairie Du Chien, Richland Center, and Platteville 850 AM CDT Fri Oct 22 2021 ...FROST ADVISORY WILL EXPIRE AT 9 AM CDT THIS MORNING... Temperatures have risen above freezing so the Frost Advisory this morning will be allowed to expire. $$
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 21, 3:07 AM CDT | Frost Advisory | ARX | Crawford, Grant, La Crosse, Richland, Vernon | 30 hr |
Nearby
Freeze Warnings in Minnesota, 2021Freeze Warnings in Iowa, 2021Freeze 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.