Alert archive / Wisconsin / Frost Advisories in 2021
Frost Advisory 9, NWS Twin Cities, MN
NWS Twin Cities, MN issued this frost advisory at Oct 17, 2021, 2:25 PM CDT for Chippewa County, Eau Claire County, Rusk County, Wisconsin. It took effect at Oct 18, 2021, 3:00 AM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Oct 17, 2021, 2:25 PM CDT (19:25 UTC)
- In effect from
- Oct 18, 2021, 3:00 AM CDT
- Expired
- Oct 18, 2021, 8:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Twin Cities, MN
Counties Chippewa County, WI, Eau Claire County, WI, Rusk County, WI
The radar
The La Crosse radar (KARX), 141 km from the middle of the area, began a volume at 19:29 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, 7.4 hours before the alert went out and 188 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
- 2109 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
528 WWUS73 KMPX 171925 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 225 PM CDT Sun Oct 17 2021 WIZ016-027-028-180330- /O.NEW.KMPX.FR.Y.0009.211018T0800Z-211018T1300Z/ Rusk-Chippewa-Eau Claire- Including the cities of Ladysmith, Chippewa Falls, and Eau Claire 225 PM CDT Sun Oct 17 2021 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Rusk, Chippewa and Eau Claire Counties. * WHEN...From 3 AM to 8 AM CDT Monday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
2 follow-up statements
458 WWUS73 KMPX 180323 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 1023 PM CDT Sun Oct 17 2021 WIZ016-027-028-181130- /O.CON.KMPX.FR.Y.0009.211018T0800Z-211018T1300Z/ Rusk-Chippewa-Eau Claire- Including the cities of Ladysmith, Chippewa Falls, and Eau Claire 1023 PM CDT Sun Oct 17 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CDT MONDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Eau Claire, Rusk and Chippewa Counties. * WHEN...From 3 AM to 8 AM CDT Monday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ Borghoff
872 WWUS73 KMPX 180940 NPWMPX URGENT - WEATHER MESSAGE National Weather Service Twin Cities/Chanhassen MN 440 AM CDT Mon Oct 18 2021 WIZ016-027-028-181300- /O.CON.KMPX.FR.Y.0009.000000T0000Z-211018T1300Z/ Rusk-Chippewa-Eau Claire- Including the cities of Ladysmith, Chippewa Falls, and Eau Claire 440 AM CDT Mon Oct 18 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Eau Claire, Rusk and Chippewa Counties. * 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. && $$
Nearby
Frost Advisories in Wisconsin, 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.