Alert archive / Wisconsin / Freeze Warnings in 2012

Freeze Warning 2, NWS Green Bay, WI

March 28, 201215 counties in Wisconsin

NWS Green Bay, WI issued this freeze warning at Mar 28, 2012, 2:12 PM CDT for 15 counties in Wisconsin. It took effect at Mar 29, 2012, 2:00 AM CDT. It was in force for 2 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
Mar 28, 2012, 2:12 PM CDT (19:12 UTC)
In effect from
Mar 29, 2012, 2:00 AM CDT
Expired
Mar 29, 2012, 4:11 AM CDT
In force
2 hr
Issued by
NWS Green Bay, WI

Counties Florence County, WI, Forest County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Portage County, WI, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 101 km from the middle of the area, began a volume at 19:10 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, 7.2 hours before the alert went out and 103 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2012-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2012-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
879 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

420 
WWUS73 KGRB 281912
NPWGRB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
212 PM CDT WED MAR 28 2012

...FREEZING TEMPERATURES EXPECTED TONIGHT...

.A RIDGE OF HIGH PRESSURE IS FORECAST TO MOVE ACROSS THE REGION
TONIGHT. A COOL...DRY AIR MASS COMBINED WITH DIMINISHING WINDS...
WILL ALLOW TEMPERATURES ACROSS NORTHERN WISCONSIN TO DROP WELL
BELOW FREEZING.

WIZ005-010>013-018>021-290300-
/O.NEW.KGRB.FZ.W.0002.120329T0700Z-120329T1400Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-
INCLUDING THE CITIES OF...EAGLE RIVER...RHINELANDER...CRANDON...
TOMAHAWK...ANTIGO...KESHENA
212 PM CDT WED MAR 28 2012

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM CDT THURSDAY. 

* TEMPERATURES ARE EXPECTED TO DROP TO BETWEEN 24 AND 29 DEGREES
  AFTER MIDNIGHT TONIGHT.

* COLD-SENSITIVE VEGETATION WILL BE EXTREMELY VULNERABLE TO SEVERE
  DAMAGE DUE TO THE SUB-FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE EXPECTED.
THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

$$

AK
2 follow-up statements
449 
WWUS73 KGRB 290213
NPWGRB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
913 PM CDT WED MAR 28 2012

...FREEZING TEMPERATURES EXPECTED TONIGHT...

.A RIDGE OF HIGH PRESSURE IS FORECAST TO MOVE ACROSS THE REGION
OVERNIGHT. A COOL DRY AIR MASS...COMBINED WITH LIGHT WINDS...WILL
ALLOW TEMPERATURES ACROSS NORTHERN AND CENTRAL WISCONSIN TO DROP
WELL BELOW FREEZING.

WIZ030-031-035>037-045-291400-
/O.EXA.KGRB.FZ.W.0002.120329T0700Z-120329T1400Z/
MARATHON-SHAWANO-WOOD-PORTAGE-WAUPACA-WAUSHARA-
INCLUDING THE CITIES OF...WAUSAU...WISCONSIN RAPIDS...
STEVENS POINT...WAUTOMA
913 PM CDT WED MAR 28 2012

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM CDT THURSDAY. 

* TEMPERATURES ARE EXPECTED TO DROP TO BETWEEN 25 AND 29 DEGREES
  LATE TONIGHT INTO EARLY THURSDAY.

* COLD-SENSITIVE VEGETATION WILL BE EXTREMELY VULNERABLE TO 
  SEVERE DAMAGE DUE TO THE SUB-FREEZING TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE EXPECTED.
THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

$$

WIZ005-010>013-018>021-291400-
/O.CON.KGRB.FZ.W.0002.120329T0700Z-120329T1400Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-
INCLUDING THE CITIES OF...EAGLE RIVER...RHINELANDER...CRANDON...
TOMAHAWK...ANTIGO...KESHENA
913 PM CDT WED MAR 28 2012

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT
THURSDAY...

* TEMPERATURES ARE EXPECTED TO DROP TO BETWEEN 22 AND 28 DEGREES
  LATE TONIGHT INTO EARLY THURSDAY.

* COLD-SENSITIVE VEGETATION WILL BE EXTREMELY VULNERABLE TO 
  SEVERE DAMAGE DUE TO THE SUB-FREEZING TEMPERATURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE EXPECTED.
THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

$$
KIECKBUSCH
117 
WWUS73 KGRB 290911
NPWGRB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
411 AM CDT THU MAR 29 2012

WIZ005-010>013-018>021-030-031-035>037-045-291015-
/O.CAN.KGRB.FZ.W.0002.000000T0000Z-120329T1400Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-MARATHON-SHAWANO-WOOD-PORTAGE-WAUPACA-
WAUSHARA-
INCLUDING THE CITIES OF...EAGLE RIVER...RHINELANDER...CRANDON...
TOMAHAWK...ANTIGO...KESHENA...WAUSAU...WISCONSIN RAPIDS...
STEVENS POINT...WAUTOMA
411 AM CDT THU MAR 29 2012

...FREEZE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS CANCELLED THE
FREEZE WARNING. 

$$

JS

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 9:46 PM CDTSmall Craft AdvisoryGRB18 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.