Alert archive / Wisconsin / Red Flag Warnings in 2012

Red Flag Warning 1, NWS Green Bay, WI

April 8, 201222 counties in Wisconsin

NWS Green Bay, WI issued this red flag warning at Apr 8, 2012, 4:42 AM CDT for 22 counties in Wisconsin. It took effect at Apr 8, 2012, 1:00 PM 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 8, 2012, 4:42 AM CDT (09:42 UTC)
In effect from
Apr 8, 2012, 1:00 PM CDT
Expired
Apr 8, 2012, 8:00 PM CDT
In force
7 hr
Issued by
NWS Green Bay, WI
All 22 counties

Brown County, WI, Calumet County, WI, Door County, WI, Florence County, WI, Forest County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 63 km from the middle of the area, began a volume at 09:45 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, 9.7 hours before the alert went out and 65 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 2012-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1808 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
225 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.

258 
WWUS83 KGRB 080942
RFWGRB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
442 AM CDT SUN APR 8 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM CDT THROUGH 8 PM CDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY...

.WEST WINDS ARE EXPECTED TO BECOME RATHER GUSTY BY THIS AFTERNOON
AND CONTINUE INTO EARLY THIS EVENING. COMBINED WITH LOW AFTERNOON
RELATIVE HUMIDITY IN THE 20 TO 25 PERCENT RANGE AND VERY DRY
FUELS...WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS THIS
AFTERNOON.

WIZ005-010>013-018>021-030-031-035>040-045-048>050-073-074-081800-
/O.UPG.KGRB.FW.A.0001.120408T1800Z-120409T0100Z/
/O.NEW.KGRB.FW.W.0001.120408T1800Z-120409T0100Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-MARATHON-SHAWANO-WOOD-PORTAGE-WAUPACA-
OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO-CALUMET-MANITOWOC-
SOUTHERN MARINETTE-SOUTHERN OCONTO-
442 AM CDT SUN APR 8 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHEAST
AND CENTRAL WISCONSIN...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING. THE FIRE
WEATHER WATCH IS NO LONGER IN EFFECT.

* THE AFFECTED COUNTIES ARE...VILAS...ONEIDA...FOREST...
  FLORENCE...MARINETTE...LINCOLN...LANGLADE...
  MENOMINEE...OCONTO...MARATHON...SHAWANO...WOOD...
  PORTAGE...WAUPACA...OUTAGAMIE...BROWN...KEWAUNEE...WAUSHARA...
  WINNEBAGO...CALUMET...AND MANITOWOC..

* WINDS FROM THE WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* RELATIVE HUMIDITY FALLING TO AS LOW AS 20 PERCENT.

* TEMPERATURES RISING TO THE MID 50S NORTH TO AROUND 60 CENTRAL.

* IMPACTS...FIRES COULD START VERY EASILY AND SPREAD AT A FAST
  RATE. BURNING RESTRICTIONS ARE LIKELY IN EFFECT. FOR MORE
  INFORMATION ON BURNING RESTRICTIONS...VISIT THE WISCONSIN DNR
  WEBSITE AT HTTP://DNR.WI.GOV/TOPIC/FORESTFIRE/RESTRICTIONS.ASP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN CRITICAL FIRE WEATHER
CONDITIONS ARE EITHER OCCURING NOW...OR ARE IMMINENT. A
COMBINATION OF STRONG WINDS...VERY LOW RELATIVE HUMIDITY...AND
EXCEPTIONALLY DRY FUELS WILL CREATE DANGEROUS WILDLAND FIRE
CONDITIONS. 

&&

$$

TH
2 follow-up statements
502 
WWUS83 KGRB 081417
RFWGRB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
917 AM CDT SUN APR 8 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM CDT THROUGH 8 PM CDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY...

.WEST WINDS ARE EXPECTED TO BECOME RATHER GUSTY BY THIS AFTERNOON
AND CONTINUE INTO EARLY THIS EVENING. COMBINED WITH LOW AFTERNOON
RELATIVE HUMIDITY IN THE 20 TO 25 PERCENT RANGE AND VERY DRY
FUELS...WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS THIS
AFTERNOON.

WIZ022-082230-
/O.EXA.KGRB.FW.W.0001.120408T1800Z-120409T0100Z/
DOOR-
917 AM CDT SUN APR 8 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHEAST
WISCONSIN...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING.

* THE AFFECTED COUNTIES ARE...DOOR.

* WINDS FROM THE WEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY FALLING TO AS LOW AS 25 PERCENT.

* TEMPERATURES RISING TO IN THE LOWER 50S.

* IMPACTS...FIRES COULD START VERY EASILY AND SPREAD AT A FAST 
  RATE. BURNING RESTRICTIONS ARE LIKELY IN EFFECT. FOR MORE 
  INFORMATION ON BURNING RESTRICTIONS...VISIT THE WISCONSIN DNR 
  WEBSITE AT 
  HTTP://DNR.WI.GOV/TOPIC/FORESTFIRE/RESTRICTIONS.ASP. 

* IMPACTS...BURNING RESTRICTIONS ARE LIKELY IN EFFECT. FOR MORE 
  INFORMATION ON BURNING RESTRICTIONS...VISIT THE WISCONSIN DNR 
  WEBSITE AT HTTP://DNR.WI.GOV/TOPIC/FORESTFIRE/RESTRICTIONS.ASP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN CRITICAL FIRE WEATHER
CONDITIONS ARE EITHER OCCURRING NOW...OR ARE IMMINENT. A
COMBINATION OF STRONG WINDS...VERY LOW RELATIVE HUMIDITY...AND
EXCEPTIONALLY DRY FUELS WILL CREATE DANGEROUS WILDLAND FIRE
CONDITIONS.

A RED FLAG WARNING IS ISSUED WHEN CRITICAL FIRE WEATHER
CONDITIONS ARE EITHER OCCURRING NOW...OR ARE IMMINENT. A
COMBINATION OF STRONG WINDS...VERY LOW RELATIVE HUMIDITY...WARM
TEMPERATURES AND EXCEPTIONALLY DRY FUELS WILL CREATE DANGEROUS
WILDLAND FIRE CONDITIONS. PERSONS ARE URGED TO BE CAREFUL WITH
ANY ACTIVITIES THAT COULD POTENTIALLY LEAD TO A WILDLAND FIRE.
CAMPFIRES...OUTDOOR GRILLS...SMOKING MATERIALS...CHAIN SAWS...AND
ALL-TERRAIN VEHICLES ALL HAVE THE POTENTIAL TO THROW A SPARK AND
IGNITE A DANGEROUS AND DESTRUCTIVE FIRE.

PLEASE ADVISE THE APPROPRIATE OFFICIALS OR FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

&&

$$

WIZ005-010>013-018>021-030-031-035>040-045-048>050-073-074-082230-
/O.CON.KGRB.FW.W.0001.120408T1800Z-120409T0100Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-MARATHON-SHAWANO-WOOD-PORTAGE-WAUPACA-
OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO-CALUMET-MANITOWOC-
SOUTHERN MARINETTE-SOUTHERN OCONTO-
917 AM CDT SUN APR 8 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
8 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR
NORTHEAST AND CENTRAL WISCONSIN...

* THE AFFECTED COUNTIES ARE...VILAS...ONEIDA...FOREST...
  FLORENCE...NORTHERN MARINETTE...LINCOLN...LANGLADE...
  MENOMINEE... NORTHERN OCONTO...MARATHON...SHAWANO...WOOD...
  PORTAGE...WAUPACA...OUTAGAMIE...BROWN...KEWAUNEE...WAUSHARA...
  WINNEBAGO...CALUMET...MANITOWOC...SOUTHERN MARINETTE AND
  SOUTHERN OCONTO.

* WINDS FROM THE WEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* RELATIVE HUMIDITY FALLING TO AS LOW AS 21 PERCENT.

* TEMPERATURES RISING TO IN THE MID 50S.

* IMPACTS...FIRES COULD START VERY EASILY AND SPREAD AT A FAST 
  RATE. BURNING RESTRICTIONS ARE LIKELY IN EFFECT. FOR MORE 
  INFORMATION ON BURNING RESTRICTIONS...VISIT THE WISCONSIN DNR 
  WEBSITE AT 
  HTTP://DNR.WI.GOV/TOPIC/FORESTFIRE/RESTRICTIONS.ASP. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN CRITICAL FIRE WEATHER
CONDITIONS ARE EITHER OCCURING NOW...OR ARE IMMINENT. A
COMBINATION OF STRONG WINDS...VERY LOW RELATIVE HUMIDITY...AND
EXCEPTIONALLY DRY FUELS WILL CREATE DANGEROUS WILDLAND FIRE
CONDITIONS.

&&

$$

MG
996 
WWUS83 KGRB 081749
RFWGRB

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
1249 PM CDT SUN APR 8 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM CDT THROUGH 8 PM CDT THIS
EVENING FOR WIND AND LOW RELATIVE HUMIDITY...

.GUSTY WEST WINDS WILL CONTINUE THROUGH EARLY EVENING. THE
WINDS...COMBINED WITH LOW RELATIVE HUMIDITY VALUES IN THE 20 TO
25 PERCENT RANGE AND VERY DRY FUELS...HAVE PRODUCED CRITICAL FIRE
WEATHER CONDITIONS THAT WILL LAST INTO THE EARLY EVENING HOURS.

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-090100-
/O.CON.KGRB.FW.W.0001.120408T1800Z-120409T0100Z/
VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE-
MENOMINEE-NORTHERN OCONTO-DOOR-MARATHON-SHAWANO-WOOD-PORTAGE-
WAUPACA-OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO-CALUMET-
MANITOWOC-SOUTHERN MARINETTE-SOUTHERN OCONTO-
1249 PM CDT SUN APR 8 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR NORTHEAST AND CENTRAL
WISCONSIN...

* THE AFFECTED COUNTIES ARE...VILAS...ONEIDA...FOREST...
  FLORENCE...NORTHERN MARINETTE...LINCOLN...LANGLADE...
  MENOMINEE... NORTHERN OCONTO...DOOR...MARATHON...SHAWANO...
  WOOD...PORTAGE...WAUPACA...OUTAGAMIE...BROWN...KEWAUNEE...
  WAUSHARA...WINNEBAGO...CALUMET...MANITOWOC...SOUTHERN MARINETTE
  AND SOUTHERN OCONTO.

* WINDS FROM THE WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* RELATIVE HUMIDITY FALLING TO AS LOW AS 21 PERCENT.

* TEMPERATURES RISING TO IN THE MID 50S.

* IMPACTS...FIRES COULD START VERY EASILY AND SPREAD AT A FAST 
  RATE. BURNING RESTRICTIONS ARE LIKELY IN EFFECT. FOR MORE 
  INFORMATION ON BURNING RESTRICTIONS...VISIT THE WISCONSIN DNR 
  WEBSITE AT 
  HTTP://DNR.WI.GOV/TOPIC/FORESTFIRE/RESTRICTIONS.ASP. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING IS ISSUED WHEN CRITICAL FIRE WEATHER
CONDITIONS ARE EITHER OCCURRING NOW...OR ARE IMMINENT. A
COMBINATION OF STRONG WINDS...VERY LOW RELATIVE HUMIDITY...AND
EXCEPTIONALLY DRY FUELS WILL CREATE DANGEROUS WILDLAND FIRE
CONDITIONS.

&&

$$

MG

Nearby

Red Flag Warnings in Wisconsin, 2012Every red flag 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.