Alert archive / Wisconsin / Freeze Warnings in 2012
Freeze Warning 6, NWS Twin Cities, MN
NWS Twin Cities, MN issued this freeze warning at Apr 20, 2012, 3:29 PM CDT for Chippewa County, Eau Claire County, Wisconsin. It took effect at Apr 21, 2012, 3:00 AM CDT. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 20, 2012, 3:29 PM CDT (20:29 UTC)
- In effect from
- Apr 21, 2012, 3:00 AM CDT
- Expired
- Apr 21, 2012, 3:25 AM CDT
- In force
- 25 min
- 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 20:32 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, 8.5 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
- 1625 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -199 m²/s²
- 0-3 km storm-relative helicity
- -182 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
330 WWUS73 KMPX 202029 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 329 PM CDT FRI APR 20 2012 ...FREEZING TEMPERATURES LATE TONIGHT... .A FREEZE WARNING IS IN EFFECT LATE TONIGHT FOR AREAS EAST OF A LINE FROM ABOUT BLOOMER TO EAU CLAIRE. HIGH PRESSURE AND MOSTLY CLEAR SKIES WILL ALLOW TEMPERATURES TO DROP TO THE UPPER 20S BY MORNING...BUT WITH A FEW HOURS NEAR FREEZING AFTER 3 AM. WIZ027-028-210430- /O.NEW.KMPX.FZ.W.0006.120421T0800Z-120421T1200Z/ CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE... ALTOONA 329 PM CDT FRI APR 20 2012 ...FREEZE WARNING IN EFFECT FROM 3 AM TO 7 AM CDT SATURDAY... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 3 AM TO 7 AM CDT SATURDAY. * TIMING...FROM 3 AM TO 7 AM. * TEMPERATURE...SUB-FREEZING TEMPERATURES ARE LIKELY LATE TONIGHT WITH LOWS IN THE UPPER 20S. * IMPACTS...FRUIT TREES AND YOUNG VEGETATION WILL BE AT RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
2 follow-up statements
380 WWUS73 KMPX 210253 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 953 PM CDT FRI APR 20 2012 ...FREEZING TEMPERATURES LATE TONIGHT... .A FREEZE WARNING IS IN EFFECT LATE TONIGHT FOR AREAS EAST OF A LINE FROM ABOUT BLOOMER TO EAU CLAIRE. HIGH PRESSURE WILL BRING LIGHT WINDS WITH MOSTLY CLEAR SKIES EARLY TONIGHT. CLOUDS WILL INCREASE LATE TONIGHT. TEMPERATURES TO DROP TO THE UPPER 20S TO LOWER 30S BY MORNING. WIZ027-028-211100- /O.CON.KMPX.FZ.W.0006.120421T0800Z-120421T1200Z/ CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE... ALTOONA 953 PM CDT FRI APR 20 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM TO 7 AM CDT SATURDAY... * TIMING...FROM 3 AM TO 7 AM. * TEMPERATURE...SUB-FREEZING TEMPERATURES ARE LIKELY LATE TONIGHT WITH LOWS IN THE UPPER 20S TO LOWER 30S. * IMPACTS...FRUIT TREES AND YOUNG VEGETATION WILL BE AT RISK. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$
070 WWUS73 KMPX 210825 NPWMPX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 325 AM CDT SAT APR 21 2012 ...FREEZE WARNING CANCELLED... .THE FREEZE WARNING FOR EAU CLARIE AND CHIPPEWA COUNTIES HAS BEEN CANCELLED. CLOUDINESS WAS INCREASING ACROSS THE REGION EARLY THIS MORNING AND WIDESPREAD SUB FREEZING TEMPERATURES ARE NO LONGER EXPECTED. WIZ027-028-210930- /O.CAN.KMPX.FZ.W.0006.000000T0000Z-120421T1200Z/ CHIPPEWA-EAU CLAIRE- INCLUDING THE CITIES OF...CHIPPEWA FALLS...BLOOMER...EAU CLAIRE... ALTOONA 325 AM CDT SAT APR 21 2012 ...FREEZE WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS CANCELLED THE FREEZE WARNING. SUB FREEZING TEMPERATURES ARE NO LONGER EXPECTED EARLY THIS MORNING FOR EAU CLAIRE AND CHIPPEWA COUNTIES AS CLOUDINESS INCREASES. $$
Nearby
Freeze Warnings in Wisconsin, 2012Every freeze warning in 2012
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.