Alert archive / Minnesota / Red Flag Warnings in 2009
Red Flag Warning 2, NWS La Crosse, WI
NWS La Crosse, WI issued this red flag warning at Apr 23, 2009, 9:51 AM CDT for 6 counties in Wisconsin; 7 counties in Minnesota. 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, 9:51 AM CDT (14:51 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 La Crosse, WI
Counties Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Buffalo County, WI, Jackson County, WI, La Crosse County, WI, Monroe County, WI, Trempealeau County, WI, Vernon County, WI
The radar
The La Crosse radar (KARX), 44 km from the middle of the area, began a volume at 14:53 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 12:00Z, 2.9 hours before the alert went out and 179 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
- 2395 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 847 m²/s²
- 0-3 km storm-relative helicity
- 1063 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WWUS83 KARX 231451 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 951 AM CDT THU APR 23 2009 ...DANGEROUS FIRE CONDITIONS TODAY... .STRONG SOUTH WINDS OF 15 TO 25 MPH...WITH GUSTS OF 30 TO 35 MPH...ALONG WITH AFTERNOON RELATIVE HUMIDITIES OF 25 TO 30 PERCENT...WILL INCREASE ALREADY CRITICAL FIRE CONDITIONS FOR PORTIONS OF THE REGION. WITH THE ADDITION OF VERY DRY FUELS... AND HIGH TEMPERATURES CLIMBING INTO THE 70S...A RED FLAG WARNING WILL BE ISSUED FOR THIS AFTERNOON AND EARLY EVENING TO ACCOUNT FOR THESE DANGEROUS FIRE CONDITIONS. MNZ079-086>088-094>096-WIZ032>034-041-042-053-232300- /O.NEW.KARX.FW.W.0002.090423T1700Z-090424T0000Z/ WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-BUFFALO- TREMPEALEAU-JACKSON-LA CROSSE-MONROE-VERNON- INCLUDING THE CITIES OF...ROCHESTER...WINONA...AUSTIN... BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...VIROQUA 951 AM CDT THU APR 23 2009 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. THE COMBINATION OF GUSTY SOUTH WINDS OF 15 TO 25 MPH...AFTERNOON HUMIDITIES OF 25 TO 30 PERCENT...VERY DRY FUELS AND HIGH TEMPERATURES CLIMBING INTO THE 70S...WILL CREATE VERY DANGEROUS FIRE CONDITIONS THIS AFTERNOON AND EARLY EVENING. 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. && $$ RIECK
2 follow-up statements
000 WWUS83 KARX 231952 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 252 PM CDT THU APR 23 2009 ...DANGEROUS FIRE CONDITIONS PERSIST INTO THIS EVENING... .GUSTY SOUTH WINDS...RELATIVE HUMIDITIES OF 25 TO 35 PERCENT...AND VERY DRY FUELS WILL KEEP THE FIRE DANGER HIGH THROUGH EARLY EVENING. A RED FLAG WARNING WILL CONTINUE INTO EARLY THIS EVENING FOR PARTS OF SOUTHEAST MINNESOTA AND WESTERN WISCONSIN TO ACCOUNT FOR THESE DANGEROUS FIRE CONDITIONS. MNZ079-086>088-094>096-WIZ032>034-041-042-053-240000- /O.CON.KARX.FW.W.0002.000000T0000Z-090424T0000Z/ WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-BUFFALO- TREMPEALEAU-JACKSON-LA CROSSE-MONROE-VERNON- INCLUDING THE CITIES OF...ROCHESTER...WINONA...AUSTIN... BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...VIROQUA 252 PM CDT THU APR 23 2009 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... A RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING. THE COMBINATION OF GUSTY SOUTH WINDS OF 15 TO 25 MPH...HUMIDITIES OF 25 TO 35 PERCENT...VERY DRY FUELS AND TEMPERATURES IN THE 70S...WILL CONTINUE VERY DANGEROUS FIRE CONDITIONS INTO EARLY EVENING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ RIECK
000 WWUS83 KARX 232359 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 659 PM CDT THU APR 23 2009 ...RED FLAG WARNING ALLOWED TO EXPIRE... .WINDS WILL CONTINUE TO SLOWLY DIMINISH THROUGH THE EVENING AS RELATIVE HUMIDITIES RISE. THUS THE RED FLAG WARNING IS BEING ALLOWED TO EXPIRE AT 7 PM. MNZ079-086>088-094>096-WIZ032>034-041-042-053-240100- /O.EXP.KARX.FW.W.0002.000000T0000Z-090424T0000Z/ WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON-BUFFALO- TREMPEALEAU-JACKSON-LA CROSSE-MONROE-VERNON- INCLUDING THE CITIES OF...ROCHESTER...WINONA...AUSTIN... BLACK RIVER FALLS...LA CROSSE...SPARTA/TOMAH...VIROQUA 659 PM CDT THU APR 23 2009 ...RED FLAG WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING... THE RED FLAG WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING. THE RED FLAG WARNING IS BEING ALLOWED TO EXPIRE AT 7 PM. THE WINDS WILL CONTINUE TO DIMINISH THROUGH THE EVENING HOURS WITH RELATIVE HUMIDITIES RISING. $$ RABERDING
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.