Alert archive / Minnesota / Red Flag Warnings in 2012
Red Flag Warning 4, NWS La Crosse, WI
NWS La Crosse, WI issued this red flag warning at Aug 29, 2012, 3:28 PM CDT for 7 counties in Minnesota; Floyd County, Howard County, Mitchell County, Iowa. It took effect at Aug 30, 2012, 12:00 PM CDT. It was in force for 8 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
- Aug 29, 2012, 3:28 PM CDT (20:28 UTC)
- In effect from
- Aug 30, 2012, 12:00 PM CDT
- Expired
- Aug 30, 2012, 8:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS La Crosse, WI
Counties Floyd County, IA, Howard County, IA, Mitchell County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN
The radar
The La Crosse radar (KARX), 94 km from the middle of the area, began a volume at 20:30 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, 8.5 hours before the alert went out and 161 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
- 85 J/kg
- Mixed-layer CIN
- -435 J/kg
- Mixed-layer LCL
- 1598 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -44 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.6
The text
As transmitted, in the capitals the NWS used until 2016.
453 WWUS83 KARX 292028 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 328 PM CDT WED AUG 29 2012 ...DANGEROUS WEATHER CONDITIONS FOR FIRES ON THURSDAY... .DANGEROUS WEATHER CONDITIONS SUPPORTIVE OF QUICK STARTING AND FAST MOVING FIRES ARE LIKELY ACROSS SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA THURSDAY. THIS IS DUE TO A COMBINATION OF HOT TEMPERATURES IN THE MIDDLE TO UPPER 90S...STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 30 MPH...AND RELATIVE HUMIDITIES AS LOW AS 20 PERCENT. CONDITIONS ARE EXPECTED TO IMPROVE QUICKLY THURSDAY EVENING AS THE WINDS GRADUALLY SUBSIDE AND THE RELATIVE HUMIDITY RISES. WIZ017-029-032>034-041>044-292130- /O.CAN.KARX.FW.A.0003.120830T1700Z-120831T0200Z/ TAYLOR-CLARK-BUFFALO-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU- ADAMS- 328 PM CDT WED AUG 29 2012 ...FIRE WEATHER WATCH IS CANCELLED FOR WESTERN INTO CENTRAL WISCONSIN... THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS CANCELLED THE FIRE WEATHER WATCH. ALTHOUGH THE WEATHER CONDITIONS THURSDAY WILL BE CONDUCIVE FOR ISOLATED FIRE STARTS...THE GRASSES...TIMBERS...WOODLANDS AND OTHER FUELS REMAIN BELOW DANGEROUS LEVELS AND WILL BE EASIER TO CONTROL. AS SUCH...THE FIRE WEATHER WATCH IS CANCELLED. $$ IAZ008-009-018-MNZ079-086>088-094>096-300430- /O.UPG.KARX.FW.A.0003.120830T1700Z-120831T0200Z/ /O.NEW.KARX.FW.W.0004.120830T1700Z-120831T0100Z/ MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE- HOUSTON- 328 PM CDT WED AUG 29 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM CDT THURSDAY FOR SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA... THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A RED FLAG WARNING FOR STRONG SOUTHWEST WINDS AND LOW RELATIVE HUMIDITY. * AFFECTED AREA...SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * TEMPERATURES...IN THE MIDDLE TO UPPER 90S. * IMPACTS...FIRES COULD START EASILY AND SPREAD QUICKLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ ZT
4 follow-up statements
883 WWUS83 KARX 300233 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 933 PM CDT WED AUG 29 2012 ...DANGEROUS WEATHER CONDITIONS FOR FIRES ON THURSDAY... .DANGEROUS WEATHER CONDITIONS SUPPORTIVE OF QUICK STARTING AND FAST MOVING FIRES ARE LIKELY ACROSS SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA THURSDAY. THIS IS DUE TO A COMBINATION OF HOT TEMPERATURES IN THE MIDDLE TO UPPER 90S...STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 30 MPH...AND RELATIVE HUMIDITIES AS LOW AS 20 PERCENT. CONDITIONS ARE EXPECTED TO IMPROVE QUICKLY THURSDAY EVENING AS THE WINDS GRADUALLY SUBSIDE AND THE RELATIVE HUMIDITY RISES. IAZ008-009-018-MNZ079-086>088-094>096-301045- /O.CON.KARX.FW.W.0004.120830T1700Z-120831T0100Z/ MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE- HOUSTON- 933 PM CDT WED AUG 29 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM CDT THURSDAY FOR SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA... * AFFECTED AREA...SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 20 PERCENT. * TEMPERATURES...IN THE MIDDLE TO UPPER 90S. * IMPACTS...FIRES COULD START EASILY AND SPREAD QUICKLY. 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. && $$
475 WWUS83 KARX 300855 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 355 AM CDT THU AUG 30 2012 ...DANGEROUS WEATHER CONDITIONS FOR FIRES TODAY... .THE WEATHER CONDITIONS TODAY WILL BE VERY CONDUCIVE FOR QUICK STARTING AND FAST MOVING FIRES ACROSS SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA. THIS IS DUE TO A COMBINATION OF TEMPERATURES IN THE MIDDLE TO UPPER 90S...STRONG SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 35 MPH AND RELATIVE HUMIDITIES AROUND 20 PERCENT. CONDITIONS ARE EXPECTED TO IMPROVE QUICKLY THIS EVENING AS THE WINDS DIMINISH AND THE RELATIVE HUMIDITY INCREASES. IAZ008-009-018-MNZ079-086>088-094>096-301700- /O.CON.KARX.FW.W.0004.120830T1700Z-120831T0100Z/ MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE- HOUSTON- 355 AM CDT THU AUG 30 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING FOR SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA... * AFFECTED AREA...SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AROUND 20 PERCENT. * TEMPERATURES...IN THE MIDDLE AND UPPER 90S. * IMPACTS...FIRES COULD START EASILY AND SPREAD QUICKLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ BOYNE
672 WWUS83 KARX 301602 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 1102 AM CDT THU AUG 30 2012 ...DANGEROUS WEATHER CONDITIONS FOR FIRES THROUGH THIS EVENING... .THE WEATHER CONDITIONS THROUGH THIS EVENING WILL BE VERY CONDUCIVE FOR QUICK STARTING AND FAST MOVING FIRES ACROSS SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA. TEMPERATURES WILL TOP OUT IN THE MIDDLE 90S TO AROUND 100 THIS AFTERNOON. EXPECT STRONG SOUTHWEST WINDS OF 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. LOOK FOR MINIMUM RELATIVE HUMIDITIES TO DROP TO AROUND 20 PERCENT. AFTER SUNSET...CONDITIONS WILL QUICKLY IMPROVE AS THE WINDS DIMINISH AND THE RELATIVE HUMIDITY INCREASES. IAZ008-009-018-MNZ079-086>088-094>096-310015- /O.CON.KARX.FW.W.0004.120830T1700Z-120831T0100Z/ MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE- HOUSTON- 1102 AM CDT THU AUG 30 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING ACROSS SOUTHEAST MINNESOTA AND PARTS OF NORTHEAST IOWA... * AFFECTED AREA...SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA. * WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AROUND 20 PERCENT. * TEMPERATURES...IN THE MIDDLE 90S TO AROUND 100. * IMPACTS...FIRES COULD START EASILY AND SPREAD QUICKLY. 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. && $$ ZT
480 WWUS83 KARX 310056 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 756 PM CDT THU AUG 30 2012 ...FIRE WEATHER CONDITIONS IMPROVING... .DIMINISHING WINDS AND RISING HUMIDITIES HAVE IMPROVED THE FIRE WEATHER CONDITIONS THIS EVENING AND THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 8 PM. IAZ008-009-018-MNZ079-086>088-094>096-310200- /O.EXP.KARX.FW.W.0004.000000T0000Z-120831T0100Z/ MITCHELL-HOWARD-FLOYD-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE- HOUSTON- 756 PM CDT THU AUG 30 2012 ...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR SOUTHEAST MINNESOTA AND PORTIONS OF NORTHEAST IOWA WINDS HAVE DECREASED THIS EVENING...WHILE HUMIDITIES HAVE INCREASED. THUS...THE CRITICAL AND DANGEROUS FIRE WEATHER CONDITIONS WILL IMPROVE AND THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE. $$
Nearby
Red Flag Warnings in Minnesota, 2012Red Flag Warnings in Iowa, 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.