Alert archive / Wisconsin / Freeze Warnings in 2021
Freeze Warning 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this freeze warning at May 7, 2021, 1:50 PM CDT for Chippewa County, Eau Claire County, 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, 1:50 PM CDT (18:50 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 Twin Cities, MN
Counties Chippewa County, WI, Eau Claire County, WI
The radar
The La Crosse radar (KARX), 120 km from the middle of the area, began a volume at 18:49 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, 6.8 hours before the alert went out and 183 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
- 1309 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
331 WWUS73 KMPX 071850 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 150 PM CDT Fri May 7 2021 WIZ027-028-080300- /O.NEW.KMPX.FZ.W.0001.210508T0500Z-210508T1300Z/ Chippewa-Eau Claire- Including the cities of Chippewa Falls and Eau Claire 150 PM CDT Fri May 7 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 27 expected. * WHERE...Chippewa and Eau Claire 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. && $$ MNZ063-070-078-WIZ023>026-080300- /O.NEW.KMPX.FR.Y.0004.210508T0500Z-210508T1300Z/ Washington-Dakota-Goodhue-St. Croix-Pierce-Dunn-Pepin- Including the cities of Stillwater, Hastings, Red Wing, Hudson, River Falls, Menomonie, and Durand 150 PM CDT Fri May 7 2021 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Wisconsin, St. Croix, Pierce, Dunn and Pepin Counties. In Minnesota, Washington, Dakota and Goodhue Counties. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
1 follow-up statement
823 WWUS73 KMPX 080126 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 826 PM CDT Fri May 7 2021 WIZ027-028-080930- /O.CON.KMPX.FZ.W.0001.210508T0500Z-210508T1300Z/ Chippewa-Eau Claire- Including the cities of Chippewa Falls and Eau Claire 826 PM CDT Fri May 7 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 27 expected. * WHERE...Chippewa and Eau Claire 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. && $$ MNZ063-070-078-WIZ023>026-080930- /O.CON.KMPX.FR.Y.0004.210508T0500Z-210508T1300Z/ Washington-Dakota-Goodhue-St. Croix-Pierce-Dunn-Pepin- Including the cities of Stillwater, Hastings, Red Wing, Hudson, River Falls, Menomonie, and Durand 826 PM CDT Fri May 7 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Wisconsin, St. Croix, Pierce, Dunn and Pepin Counties. In Minnesota, Washington, Dakota and Goodhue Counties. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 1:50 PM CDT | Frost Advisory | MPX | Dunn, Pepin, Pierce, Saint Croix | 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.