Alert archive / Minnesota / Red Flag Warnings in 2009
Red Flag Warning 3, NWS Twin Cities, MN
NWS Twin Cities, MN issued this red flag warning at Apr 23, 2009, 3:38 AM CDT for 42 counties in Minnesota; 9 counties in Wisconsin. It took effect at Apr 23, 2009, 12:00 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 23, 2009, 3:38 AM CDT (08:38 UTC)
- In effect from
- Apr 23, 2009, 12:00 PM CDT
- Expired
- Apr 23, 2009, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Twin Cities, MN
All 51 counties
Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Douglas County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 20 km from the middle of the area, began a volume at 08:41 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
Minneapolis, MN (KMPX), launched 00:00Z, 8.6 hours before the alert went out and 17 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
- 3729 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
449 WWUS83 KMPX 230947 RFWMPX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 338 AM CDT THU APR 23 2009 ...RED FLAG WARNING FROM NOON UNTIL 7 PM CDT FOR PARTS OF WEST CENTRAL AND SOUTH CENTRAL MINNESOTA...FOR LOW HUMIDITY...STRONG WINDS...AND DRY FUELS... .SOUTHERLY WINDS WILL INCREASE LATER THIS MORNING INTO THE 25 TO 35 MPH RANGE OUT AHEAD OF A COLD FRONT DROPPING SOUTH ACROSS NORTHERN MINNESOTA. THE STRONG SOUTHERLY WINDS WILL ALSO HELP USHER IN UNSEASONABLY WARM AIR INTO THE WARNED AREA...RESULTING IN HIGHS THIS AFTERNOON GETTING INTO 80S. WITH DRY AIR STILL IN PLACE...THIS WILL ALLOW AFTERNOON HUMIDITIES TO DROP INTO THE 20 TO 25 PERCENT RANGE. THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL COMBINE WITH DRY FUELS IN PLACE TO YIELD DANGEROUS WILDFIRE CONDITIONS THIS AFTERNOON FOR THE WARNED AREA. THE RED FLAG WARNING IS IN EFFECT ALONG AND WEST OF A LINE FROM BENSON...TO LITCHFIELD...TO BLUE EARTH. MNZ054>058-064>067-073>075-082-083-091-092-231645- /O.NEW.KMPX.FW.W.0003.090423T1700Z-090424T0000Z/ LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-MEEKER-YELLOW MEDICINE- RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-NICOLLET-WATONWAN-BLUE EARTH- MARTIN-FARIBAULT- 338 AM CDT THU APR 23 2009 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING. SOUTHERLY WINDS WILL INCREASE LATER THIS MORNING INTO THE 25 TO 35 MPH RANGE OUT AHEAD OF A COLD FRONT DROPPING SOUTH ACROSS NORTHERN MINNESOTA. THE STRONG SOUTHERLY WINDS WILL ALSO HELP USHER IN UNSEASONABLY WARM AIR INTO THE WARNED AREA...RESULTING IN HIGHS THIS AFTERNOON GETTING INTO 80S. WITH DRY AIR STILL IN PLACE...THIS WILL ALLOW AFTERNOON HUMIDITIES TO DROP INTO THE 20 TO 25 PERCENT RANGE. THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL COMBINE WITH DRY FUELS IN PLACE TO YIELD DANGEROUS WILDFIRE CONDITIONS THIS AFTERNOON FOR THE WARNED AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
2 follow-up statements
000 WWUS83 KMPX 231438 RFWMPX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 938 AM CDT THU APR 23 2009 ...RED FLAG WARNING FROM NOON UNTIL 7 PM CDT FOR CENTRAL AND SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN FOR LOW HUMIDITY...STRONG WINDS...AND DRY FUELS... .SOUTHERLY WINDS WILL CONTINUE TO INCREASE THIS MORNING INTO THE 25 TO 35 MPH RANGE OUT AHEAD OF A COLD FRONT DROPPING SOUTH ACROSS NORTHERN MINNESOTA. THE STRONG SOUTHERLY WINDS WILL ALSO HELP USHER IN UNSEASONABLY WARM AIR INTO THE WARNED AREA...RESULTING IN HIGHS THIS AFTERNOON GETTING INTO MID 70S TO MID 80S. WITH DRY AIR STILL IN PLACE...THIS WILL ALLOW AFTERNOON HUMIDITIES TO DROP INTO THE 20 TO 30 PERCENT RANGE. THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL COMBINE WITH DRY FUELS IN PLACE TO YIELD DANGEROUS WILDFIRE CONDITIONS THIS AFTERNOON FOR THE WARNED AREA. THE RED FLAG WARNING HAS BEEN EXPANDED TO INCLUDE AREAS FROM ALBERT LEA THEN NORTH THROUGH THE TWIN CITIES TO THE CAMBRIDGE AND MORA AREA. IT ALSO NOW INCLUDES THE WEST CENTRAL WISCONSIN AREAS FROM AMERY TO RICE LAKE TO LADYSMITH TO EAU CLAIRE AND DURAND. MNZ041>045-047>053-059>063-068>070-076>078-084-085-093-WIZ014>016- 023>028-232245- /O.EXA.KMPX.FW.W.0003.090423T1700Z-090424T0000Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-WRIGHT-HENNEPIN-ANOKA-RAMSEY- WASHINGTON-CARVER-SCOTT-DAKOTA-LE SUEUR-RICE-GOODHUE-WASECA- STEELE-FREEBORN-POLK-BARRON-RUSK-ST. CROIX-PIERCE-DUNN-PEPIN- CHIPPEWA-EAU CLAIRE- 938 AM CDT THU APR 23 2009 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. SOUTHERLY WINDS WILL CONTINUE TO INCREASE THIS MORNING INTO THE 25 TO 35 MPH RANGE OUT AHEAD OF A COLD FRONT DROPPING SOUTH ACROSS NORTHERN MINNESOTA. THE STRONG SOUTHERLY WINDS WILL ALSO HELP USHER IN UNSEASONABLY WARM AIR INTO THE WARNED AREA...RESULTING IN HIGHS THIS AFTERNOON GETTING INTO THE MID 70S TO LOWER 80S. WITH DRY AIR STILL IN PLACE...THIS WILL ALLOW AFTERNOON HUMIDITIES TO DROP INTO THE 25 PERCENT RANGE. THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL COMBINE WITH DRY FUELS IN PLACE TO YIELD DANGEROUS WILDFIRE CONDITIONS THIS AFTERNOON FOR THE WARNED AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ MNZ054>058-064>067-073>075-082-083-091-092-232245- /O.CON.KMPX.FW.W.0003.090423T1700Z-090424T0000Z/ LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-MEEKER-YELLOW MEDICINE- RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-NICOLLET-WATONWAN-BLUE EARTH- MARTIN-FARIBAULT- 938 AM CDT THU APR 23 2009 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. SOUTHERLY WINDS WILL CONTINUE TO INCREASE INTO THE 25 TO 35 MPH RANGE THIS MORNING OUT AHEAD OF A COLD FRONT DROPPING SOUTH ACROSS NORTHERN MINNESOTA. THE STRONG SOUTHERLY WINDS WILL ALSO HELP USHER IN UNSEASONABLY WARM AIR INTO THE WARNED AREA...RESULTING IN HIGHS THIS AFTERNOON GETTING INTO 80S. WITH DRY AIR STILL IN PLACE...THIS WILL ALLOW AFTERNOON HUMIDITIES TO DROP INTO THE 20 TO 25 PERCENT RANGE. THE STRONG WINDS AND LOW RELATIVE HUMIDITIES WILL COMBINE WITH DRY FUELS IN PLACE TO YIELD DANGEROUS WILDFIRE CONDITIONS THIS AFTERNOON FOR THE WARNED AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ BAP
000 WWUS83 KMPX 232315 RFWMPX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 615 PM CDT THU APR 23 2009 ...RED FLAG WARNING FROM NOON UNTIL 7 PM CDT FOR CENTRAL AND SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN FOR LOW HUMIDITY... STRONG WINDS...AND DRY FUELS... .DANGEROUS WILDFIRE CONDITIONS PREVAILED EARLY THIS EVENING ACROSS CENTRAL AND SOUTHERN MINNESOTA AS TEMPERATURES IN THE MIDDLE 80S TO LOWER 90S WERE OCCURRING ALONG WITH SOUTHERLY WINDS NEAR 25 MPH AND RELATIVE HUMIDITY VALUES BELOW 25 PERCENT. CONDITIONS WERE A LITTLE BETTER OVER WEST CENTRAL WISCONSIN WHERE WIND SPEEDS WERE NOT AS GREAT AND HUMIDITY VALUES WERE MUCH HIGHER DUE TO AFTERNOON CLOUDINESS. THE DANGEROUS WILDFIRE CONDITIONS ACROSS CENTRAL AND SOUTHERN MINNESOTA WILL SLOWLY DIMINISH THIS EVENING AS WIND SPEEDS DROP AND RELATIVE HUMIDITY VALUES RISE AS TEMPERATURES DECREASE. MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 240015- /O.CON.KMPX.FW.W.0003.000000T0000Z-090424T0000Z/ DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS- BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA- KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON- YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA- REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH- WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-RUSK- ST. CROIX-PIERCE-DUNN-PEPIN-EAU CLAIRE- 615 PM CDT THU APR 23 2009 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. DANGEROUS WILDFIRE CONDITIONS PREVAILED EARLY THIS EVENING ACROSS CENTRAL AND SOUTHERN MINNESOTA AS TEMPERATURES IN THE MIDDLE 80S TO LOWER 90S WERE OCCURRING ALONG WITH SOUTHERLY WINDS NEAR 25 MPH AND RELATIVE HUMIDITY VALUES BELOW 25 PERCENT. CONDITIONS WERE A LITTLE BETTER OVER WEST CENTRAL WISCONSIN WHERE WIND SPEEDS WERE NOT AS GREAT AND HUMIDITY VALUES WERE MUCH HIGHER DUE TO AFTERNOON CLOUDINESS. THE DANGEROUS WILDFIRE CONDITIONS ACROSS CENTRAL AND SOUTHERN MINNESOTA WILL SLOWLY DIMINISH THIS EVENING AS WIND SPEEDS DROP AND RELATIVE HUMIDITY VALUES RISE AS TEMPERATURES DECREASE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ RAH
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 3:52 AM CDT | Wind Advisory | MPX | Blue Earth, Brown, Chippewa, Faribault, Freeborn, Goodhue and 12 more | 15 hr |
Nearby
Red Flag Warnings in Minnesota, 2009Red Flag Warnings in Wisconsin, 2009Every red flag warning in 2009
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.