Alert archive / Iowa / Red Flag Warnings in 2012
Red Flag Warning 6, NWS La Crosse, WI
NWS La Crosse, WI issued this red flag warning at Oct 8, 2012, 3:48 AM CDT for 8 counties in Iowa; 7 counties in Minnesota. It took effect at Oct 8, 2012, 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
- Oct 8, 2012, 3:48 AM CDT (08:48 UTC)
- In effect from
- Oct 8, 2012, 12:00 PM CDT
- Expired
- Oct 8, 2012, 7:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS La Crosse, WI
Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek 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), 85 km from the middle of the area, began a volume at 08:53 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 00:00Z, 8.8 hours before the alert went out and 190 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
- 2864 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
754 WWUS83 KARX 080848 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 348 AM CDT MON OCT 8 2012 ...CRITICAL FIRE WEATHER CONDITIONS TODAY... .WINDY AND DRY CONDITIONS WILL LEAD TO FAVORABLE CONDITIONS FOR WILDFIRES THIS AFTERNOON AND EARLY EVENING WEST OF THE MISSISSIPPI RIVER IN NORTHEAST IOWA AND SOUTHEAST MINNESOTA. SOUTH TO SOUTHWEST SUSTAINED WIND OF 15 TO 25 MPH WITH GUSTS UP TO 35 MPH WILL ACCOMPANY RELATIVE HUMIDITY VALUES IN THE LOW 20S THIS AFTERNOON. THESE FACTORS COMBINED WITH THE DROUGHT CONDITIONS REGION WIDE OVER THE PAST YEAR WILL CREATE THE HAZARDOUS FIRE WEATHER CONCERNS FOR TODAY. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-081700- /O.UPG.KARX.FW.A.0004.121008T1700Z-121009T0000Z/ /O.NEW.KARX.FW.W.0006.121008T1700Z-121009T0000Z/ MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE- CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON- 348 AM CDT MON OCT 8 2012 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHEAST MINNESOTA AND NORTHEAST IOWA... THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...SOUTHEAST MINNESOTA AND NORTHEAST IOWA THIS AFTERNOON AND EARLY EVENING. * WINDS...SUSTAINED SOUTH TO SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...22 TO 27 PERCENT. * TEMPERATURES...63 TO 68. * 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. && $$ HALBACH
3 follow-up statements
646 WWUS83 KARX 081457 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 957 AM CDT MON OCT 8 2012 ...CRITICAL FIRE WEATHER CONDITIONS TODAY... .WINDY AND DRY CONDITIONS WILL LEAD TO FAVORABLE CONDITIONS FOR WILDFIRES THIS AFTERNOON AND EARLY EVENING WEST OF THE MISSISSIPPI RIVER IN NORTHEAST IOWA AND SOUTHEAST MINNESOTA. SOUTH TO SOUTHWEST SUSTAINED WIND OF 15 TO 25 MPH WITH GUSTS UP TO 35 MPH WILL ACCOMPANY RELATIVE HUMIDITY VALUES IN THE LOW 20S THIS AFTERNOON. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-082300- /O.CON.KARX.FW.W.0006.121008T1700Z-121009T0000Z/ MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE- CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON- 957 AM CDT MON OCT 8 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHEAST MINNESOTA AND NORTHEAST IOWA... * AFFECTED AREA...SOUTHEAST MINNESOTA AND NORTHEAST IOWA THIS AFTERNOON AND EARLY EVENING. * WINDS...SOUTH TO SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...22 TO 27 PERCENT. * TEMPERATURES...60 TO 67 * IMPACTS...FIRES COULD START EASILY AND SPREAD QUICKLY PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WETENKAMP
657 WWUS83 KARX 082029 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 329 PM CDT MON OCT 8 2012 ...CRITICAL FIRE WEATHER CONDITIONS THROUGH EARLY EVENING... .WINDY AND DRY CONDITIONS ARE PRODUCING FAVORABLE CONDITIONS FOR WILDFIRES AND WILL CONTINUE TO DO SO THROUGH EARLY THIS EVENING WEST OF THE MISSISSIPPI RIVER IN NORTHEAST IOWA AND SOUTHEAST MINNESOTA. SOUTHWEST SUSTAINED WINDS OF 15 TO 25 MPH WITH GUSTS AROUND 35 MPH WILL ACCOMPANY RELATIVE HUMIDITY VALUES IN THE LOW 20S. WIND GUSTS OF 30 TO 37 MPH ARE OCCURRING ACROSS SOUTHEAST MINNESOTA AND NORTHEAST IOWA. RELATIVE HUMIDITY VALUES HAVE FALLEN INTO THE 25 TO 30 PERCENT RANGE...WITH A FEW LOCATIONS REPORTING VALUES IN THE LOWER 20S. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-090000- /O.CON.KARX.FW.W.0006.000000T0000Z-121009T0000Z/ MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE- CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON- 329 PM CDT MON OCT 8 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTHEAST MINNESOTA AND NORTHEAST IOWA... * AFFECTED AREA...SOUTHEAST MINNESOTA AND NORTHEAST IOWA THIS AFTERNOON AND EARLY EVENING. * WINDS...SOUTH 15 TO 25 MPH WITH GUSTS AROUND 35 MPH. * RELATIVE HUMIDITY...21 TO 27 PERCENT. * TEMPERATURES...62 TO 67 THROUGH LATE AFTERNOON. * IMPACTS...FIRES COULD START EASILY AND SPREAD QUICKLY PRECAUTIONARY/PREPAREDNESS ACTIONS... CRITICAL FIRE WEATHER CONDITIONS ARE OCCURRING NOW. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL THROUGH EARLY THIS EVENING. && $$ WETENKAMP
853 WWUS83 KARX 082358 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 658 PM CDT MON OCT 8 2012 ...CONDITIONS IMPROVING THIS EVENING... .THE CRITICAL FIRE CONDITIONS WILL CONTINUE TO IMPROVE THROUGH THE EVENING HOURS. WINDS WILL DIMINISH AND THE RELATIVE HUMIDITIES WILL CONTINUE TO INCREASE. THUS THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 7 PM. IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-090100- /O.EXP.KARX.FW.W.0006.000000T0000Z-121009T0000Z/ MITCHELL-HOWARD-WINNESHIEK-ALLAMAKEE-FLOYD-CHICKASAW-FAYETTE- CLAYTON-WABASHA-DODGE-OLMSTED-WINONA-MOWER-FILLMORE-HOUSTON- 658 PM CDT MON OCT 8 2012 ...RED FLAG WARNING WILL EXPIRE AT 7 PM CDT THIS EVENING FOR STRONG WINDS AND VERY LOW RELATIVE HUMIDITIES... THE SOUTH WINDS WILL CONTINUE TO DECREASE THIS EVENING AND THE RELATIVE HUMIDITY WILL CONTINUE TO INCREASE. THIS HAS EASED THE THREAT FOR RAPIDLY SPREADING FIRES AND THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 7 PM. $$
Nearby
Red Flag Warnings in Iowa, 2012Red Flag Warnings in Minnesota, 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.