Alert archive / Wisconsin / Freeze Warnings in 2012
Freeze Warning 9, NWS Green Bay, WI
NWS Green Bay, WI issued this freeze warning at Apr 16, 2012, 2:44 PM CDT for 13 counties in Wisconsin. It took effect at Apr 17, 2012, 1:00 AM CDT. It was in force for 7 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
- Apr 16, 2012, 2:44 PM CDT (19:44 UTC)
- In effect from
- Apr 17, 2012, 1:00 AM CDT
- Expired
- Apr 17, 2012, 8:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Green Bay, WI
Counties Brown County, WI, Calumet County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The Green Bay radar (KGRB), 56 km from the middle of the area, began a volume at 19:41 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.7 hours before the alert went out and 57 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
- 78 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 680 m above ground
- 0-6 km bulk shear
- 100 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
831 WWUS73 KGRB 161944 NPWGRB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREEN BAY WI 244 PM CDT MON APR 16 2012 ...A COLD NIGHT IN STORE FOR CENTRAL AND EAST-CENTRAL WISCONSIN... .A COLD...CANADIAN AIR MASS WILL SETTLE OVER THE REGION TONIGHT. AS SKIES BECOME PARTLY CLOUDY AND WINDS GRADUALLY DIMINISH...THIS WILL ALLOW TEMPERATURES TO FALL INTO THE MIDDLE TO UPPER 20S IN CENTRAL AND EAST-CENTRAL WISCONSIN. THESE FREEZING CONDITIONS COULD DAMAGE SENSITIVE VEGETATION IF NOT PROTECTED. WIZ020-030-031-035>039-045-048-049-073-074-170330- /O.NEW.KGRB.FZ.W.0009.120417T0600Z-120417T1300Z/ MENOMINEE-MARATHON-SHAWANO-WOOD-PORTAGE-WAUPACA-OUTAGAMIE-BROWN- WAUSHARA-WINNEBAGO-CALUMET-SOUTHERN MARINETTE-SOUTHERN OCONTO- INCLUDING THE CITIES OF...KESHENA...WAUSAU...WISCONSIN RAPIDS... STEVENS POINT...APPLETON...GREEN BAY...WAUTOMA...OSHKOSH... CHILTON...CRIVITZ 244 PM CDT MON APR 16 2012 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM CDT TUESDAY... THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM 1 AM TO 8 AM CDT TUESDAY. * TEMPERATURES ARE FORECAST TO FALL INTO THE MIDDLE TO UPPER 20S BY DAYBREAK. * THESE FREEZING TEMPERATURES COULD DAMAGE EARLY SEASON VEGETATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE EXPECTED. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ AK
1 follow-up statement
740 WWUS73 KGRB 170237 NPWGRB URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE GREEN BAY WI 937 PM CDT MON APR 16 2012 ...A COLD NIGHT IN STORE FOR CENTRAL AND EAST-CENTRAL WISCONSIN... .A COLD...CANADIAN AIR MASS WILL SETTLE OVER THE REGION TONIGHT. AS SKIES BECOME PARTLY CLOUDY AND WINDS GRADUALLY DIMINISH...THIS WILL ALLOW TEMPERATURES TO FALL INTO THE MIDDLE TO UPPER 20S IN CENTRAL AND EAST-CENTRAL WISCONSIN. THESE FREEZING CONDITIONS COULD DAMAGE SENSITIVE VEGETATION. WIZ020-030-031-035>039-045-048-049-073-074-171300- /O.CON.KGRB.FZ.W.0009.120417T0600Z-120417T1300Z/ MENOMINEE-MARATHON-SHAWANO-WOOD-PORTAGE-WAUPACA-OUTAGAMIE-BROWN- WAUSHARA-WINNEBAGO-CALUMET-SOUTHERN MARINETTE-SOUTHERN OCONTO- INCLUDING THE CITIES OF...KESHENA...WAUSAU...WISCONSIN RAPIDS... STEVENS POINT...APPLETON...GREEN BAY...WAUTOMA...OSHKOSH... CHILTON...CRIVITZ 937 PM CDT MON APR 16 2012 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT TUESDAY... * OVERNIGHT LOW TEMPERATURES ARE FORECAST TO BE IN THE MIDDLE TO UPPER 20S. * THE FREEZING TEMPERATURES COULD DAMAGE EARLY SEASON VEGETATION. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE EXPECTED. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ JS
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 10:56 AM CDT | Gale Warning | GRB | 10 hr | |
| Apr 16, 10:56 AM CDT | Small Craft Advisory | GRB | 17 hr |
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.