Alert archive / Wisconsin / Frost Advisories in 2021
Frost Advisory 1, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at May 4, 2021, 2:15 PM CDT for 6 counties in Wisconsin; Goodhue County, Minnesota. It took effect at May 5, 2021, 2:00 AM CDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- May 4, 2021, 2:15 PM CDT (19:15 UTC)
- In effect from
- May 5, 2021, 2:00 AM CDT
- Expired
- May 5, 2021, 8:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS Twin Cities, MN
Counties Goodhue County, MN, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 121 km from the middle of the area, began a volume at 19:18 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, 7.3 hours before the alert went out and 124 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
- 978 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
382 WWUS73 KMPX 041915 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 215 PM CDT Tue May 4 2021 MNZ078-WIZ023>028-050315- /O.NEW.KMPX.FR.Y.0001.210505T0700Z-210505T1300Z/ Goodhue-St. Croix-Pierce-Dunn-Pepin-Chippewa-Eau Claire- Including the cities of Red Wing, Hudson, River Falls, Menomonie, Durand, Chippewa Falls, and Eau Claire 215 PM CDT Tue May 4 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In Wisconsin, St. Croix, Pierce, Dunn, Pepin, Chippewa and Eau Claire Counties. In Minnesota, Goodhue County. * 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. && $$ Borghoff
3 follow-up statements
003 WWUS73 KMPX 050303 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 1003 PM CDT Tue May 4 2021 MNZ078-WIZ023>028-051115- /O.CON.KMPX.FR.Y.0001.210505T0700Z-210505T1300Z/ Goodhue-St. Croix-Pierce-Dunn-Pepin-Chippewa-Eau Claire- Including the cities of Red Wing, Hudson, River Falls, Menomonie, Durand, Chippewa Falls, and Eau Claire 1003 PM CDT Tue May 4 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM CDT WEDNESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In Wisconsin, St. Croix, Pierce, Dunn, Pepin, Chippewa and Eau Claire Counties. In Minnesota, Goodhue County. * WHEN...From 2 AM to 8 AM CDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
834 WWUS73 KMPX 050818 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 318 AM CDT Wed May 5 2021 MNZ078-WIZ023>028-051300- /O.CON.KMPX.FR.Y.0001.000000T0000Z-210505T1300Z/ Goodhue-St. Croix-Pierce-Dunn-Pepin-Chippewa-Eau Claire- Including the cities of Red Wing, Hudson, River Falls, Menomonie, Durand, Chippewa Falls, and Eau Claire 318 AM CDT Wed May 5 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...In Wisconsin, St. Croix, Pepin, Chippewa, Pierce, Dunn and Eau Claire Counties. In Minnesota, Goodhue County. * 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. && $$
882 WWUS73 KMPX 051244 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 744 AM CDT Wed May 5 2021 MNZ078-WIZ023>028-051345- /O.EXP.KMPX.FR.Y.0001.000000T0000Z-210505T1300Z/ Goodhue-St. Croix-Pierce-Dunn-Pepin-Chippewa-Eau Claire- Including the cities of Red Wing, Hudson, River Falls, Menomonie, Durand, Chippewa Falls, and Eau Claire 744 AM CDT Wed May 5 2021 ...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING... More frost is expected tonight and another Frost Advisory will likely be issued later today. $$ Borghoff
Nearby
Frost Advisories in Wisconsin, 2021Frost Advisories in Minnesota, 2021Every frost advisory 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.