Alert archive / Wisconsin / Frost Advisories in 2012

Frost Advisory 4, NWS Green Bay, WI

May 30, 20127 counties in Wisconsin

NWS Green Bay, WI issued this frost advisory at May 30, 2012, 4:09 AM CDT for 7 counties in Wisconsin. It took effect at May 31, 2012, 1:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 30, 2012, 4:09 AM CDT (09:09 UTC)
In effect from
May 31, 2012, 1:00 AM CDT
Expired
May 31, 2012, 7:00 AM CDT
In force
6 hr
Issued by
NWS Green Bay, WI

Counties Florence County, WI, Forest County, WI, Langlade County, WI, Lincoln County, WI, Marinette County, WI, Oneida County, WI, Vilas County, WI

The radar

The Green Bay radar (KGRB), 141 km from the middle of the area, began a volume at 09:12 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 00:00Z, 9.2 hours before the alert went out and 144 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 00:00Z on 2012-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 00:00Z on 2012-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
4 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1726 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
52 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.

563 
WWUS73 KGRB 300909
NPWGRB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
409 AM CDT WED MAY 30 2012

...FROSTY CONDITIONS EXPECTED LATE TONIGHT AND EARLY THURSDAY...

.HIGH PRESSURE MOVING IN WILL BRING LIGHT WINDS AND COOLER
TEMPERATURES TO THE REGION TODAY AND TONIGHT.  

WIZ005-010>013-018-019-301715-
/O.NEW.KGRB.FR.Y.0004.120531T0600Z-120531T1200Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
INCLUDING THE CITIES OF...EAGLE RIVER...RHINELANDER...CRANDON...
TOMAHAWK...ANTIGO
409 AM CDT WED MAY 30 2012

...FROST ADVISORY IN EFFECT FROM 1 AM TO 7 AM CDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM CDT THURSDAY. 

* TEMPERATURES WILL DROP TO BETWEEN 30 AND 35 DEGREES...WITH A FEW
  SPOTS SEEING THE UPPER 20S.

* PLANTS THAT ARE SENSITIVE TO THE COLD TEMPERATURES COULD BE
  DAMAGED IF PROTECTIVE ACTIONS ARE NOT TAKEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
3 follow-up statements
976 
WWUS73 KGRB 301647
NPWGRB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
1147 AM CDT WED MAY 30 2012

...FROSTY CONDITIONS EXPECTED LATE TONIGHT AND EARLY THURSDAY...

.HIGH PRESSURE MOVING IN WILL BRING LIGHT WINDS AND COOLER
TEMPERATURES TO THE REGION TODAY AND TONIGHT.

WIZ005-010>013-018-019-310100-
/O.CON.KGRB.FR.Y.0004.120531T0600Z-120531T1200Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
INCLUDING THE CITIES OF...EAGLE RIVER...RHINELANDER...CRANDON...
TOMAHAWK...ANTIGO
1147 AM CDT WED MAY 30 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 AM CDT
THURSDAY...

* TEMPERATURES WILL DROP TO BETWEEN 30 AND 35 DEGREES...WITH A 
  FEW SPOTS SEEING THE UPPER 20S. 

* PLANTS THAT ARE SENSITIVE TO THE COLD TEMPERATURES COULD BE 
  DAMAGED IF PROTECTIVE ACTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
ECKBERG
421 
WWUS73 KGRB 301949
NPWGRB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
249 PM CDT WED MAY 30 2012

...FROSTY CONDITIONS EXPECTED LATE TONIGHT AND EARLY THURSDAY...

.HIGH PRESSURE MOVING IN WILL BRING LIGHT WINDS AND COOLER
TEMPERATURES TO THE REGION TONIGHT.

WIZ005-010>013-018-019-310400-
/O.CON.KGRB.FR.Y.0004.120531T0600Z-120531T1200Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
INCLUDING THE CITIES OF...EAGLE RIVER...RHINELANDER...CRANDON...
TOMAHAWK...ANTIGO
249 PM CDT WED MAY 30 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 AM CDT
THURSDAY...

* TEMPERATURES WILL DROP TO BETWEEN 30 AND 36 DEGREES. A FEW SPOTS
  ACROSS VILAS COUNTY COULD DROP INTO THE UPPER 20S.

* PLANTS THAT ARE SENSITIVE TO THE COLD TEMPERATURES COULD BE 
  DAMAGED IF PROTECTIVE ACTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
ECKBERG
569 
WWUS73 KGRB 310317
NPWGRB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
1017 PM CDT WED MAY 30 2012

...FROSTY CONDITIONS ACROSS THE NORTH OVERNIGHT...

.HIGH PRESSURE WILL BRING LIGHT WINDS AND COOL TEMPERATURES TO
THE REGION OVERNIGHT.

WIZ005-010>013-018-019-311200-
/O.CON.KGRB.FR.Y.0004.120531T0600Z-120531T1200Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
INCLUDING THE CITIES OF...EAGLE RIVER...RHINELANDER...CRANDON...
TOMAHAWK...ANTIGO
1017 PM CDT WED MAY 30 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 AM CDT
THURSDAY...

* TEMPERATURES WILL DROP TO BETWEEN 30 AND 36 DEGREES. A FEW 
  SPOTS ACROSS VILAS COUNTY COULD DROP INTO THE UPPER 20S. 

* PLANTS THAT ARE SENSITIVE TO THE COLD TEMPERATURES COULD BE 
  DAMAGED IF PROTECTIVE ACTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

Nearby

Frost Advisories in Wisconsin, 2012Every frost advisory 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.