Alert archive / Minnesota / Red Flag Warnings in 2012
Red Flag Warning 3, NWS La Crosse, WI
NWS La Crosse, WI issued this red flag warning at Apr 9, 2012, 3:38 AM CDT for 4 counties in Minnesota. It took effect at Apr 9, 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 9, 2012, 3:38 AM CDT (08:38 UTC)
- In effect from
- Apr 9, 2012, 1:00 PM CDT
- Expired
- Apr 9, 2012, 8:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS La Crosse, WI
Counties Dodge County, MN, Fillmore County, MN, Mower County, MN, Olmsted County, MN
The radar
The La Crosse radar (KARX), 107 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 141 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
- 3359 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
585 WWUS83 KARX 090838 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 338 AM CDT MON APR 9 2012 ...CRITICAL FIRE WEATHER EXPECTED THIS AFTERNOON AND EARLY EVENING ACROSS PORTIONS OF SOUTHEAST MINNESOTA... .NORTHWEST WINDS WILL INCREASE QUICKLY THIS MORNING...THEN CONTINUE AT 20 TO 25 MPH WITH GUSTS TO 35 MPH INTO THE EVENING. WITH THE MINIMUM RELATIVE HUMIDITY DROPPING TO AROUND 25 PERCENT...THIS COMBINATION OF DRY AIR AND GUSTY WINDS WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS FOR MUCH OF SOUTHEAST MINNESOTA. MNZ086-087-094-095-091645- /O.UPG.KARX.FW.A.0002.120409T1800Z-120410T0100Z/ /O.NEW.KARX.FW.W.0003.120409T1800Z-120410T0100Z/ DODGE-OLMSTED-MOWER-FILLMORE- 338 AM CDT MON APR 9 2012 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING FOR GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE HUMIDITY IN SOUTHEAST MINNESOTA... THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A RED FLAG WARNING FOR SOUTHEAST MINNESOTA...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM CDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...SOUTHEAST MINNESOTA. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AROUND 25 PERCENT. * TEMPERATURES...AROUND 50. * 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. && $$ BOYNE
3 follow-up statements
937 WWUS83 KARX 091554 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 1054 AM CDT MON APR 9 2012 ...DANGEROUS FIRE WEATHER CONDITIONS EXPECTED THIS AFTERNOON AND EARLY EVENING ACROSS PORTIONS OF SOUTHEAST MINNESOTA... .LOOK FOR NORTHWEST WINDS OF 20 TO 25 MPH WITH GUSTS NEAR 40 MPH THROUGH THIS AFTERNOON AND INTO EARLY THIS EVENING. THE COMBINATION OF THE GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE HUMIDITY IN THE 20 TO 25 PERCENT RANGE WILL PRODUCE DANGEROUS FIRE WEATHER CONDITIONS FOR MUCH OF SOUTHEAST MINNESOTA. CONDITIONS WILL GRADUALLY IMPROVE AFTER SUNSET. MNZ086-087-094-095-100000- /O.CON.KARX.FW.W.0003.120409T1800Z-120410T0100Z/ DODGE-OLMSTED-MOWER-FILLMORE- 1054 AM CDT MON APR 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE HUMIDITY FOR PORTIONS OF SOUTHEAST MINNESOTA... * AFFECTED AREA...PORTIONS OF SOUTHEAST MINNESOTA INCLUDING DODGE...MOWER...OLMSTED...AND FILLMORE COUNTIES. * WINDS...NORTHWEST 20 TO 25 MPH WITH GUSTS NEAR 40 MPH. * RELATIVE HUMIDITY...IN THE 20 TO 25 PERCENT RANGE. * IMPACTS...FIRES COULD START EASILY AND SPREAD QUICKLY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ DAS
141 WWUS83 KARX 092012 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 312 PM CDT MON APR 9 2012 ...DANGEROUS FIRE WEATHER CONDITIONS TO CONTINUE INTO EARLY THIS EVENING ACROSS PORTIONS OF SOUTHEAST MINNESOTA... .LOOK FOR NORTHWEST WINDS OF 20 TO 25 MPH WITH GUSTS NEAR 40 MPH TO CONTINUE INTO EARLY THIS EVENING. THE COMBINATION OF THE GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE HUMIDITY IN THE 20 TO 25 PERCENT RANGE WILL CONTINUE TO PRODUCE DANGEROUS FIRE WEATHER CONDITIONS UNTIL SUNSET. CONDITIONS WILL THEN GRADUALLY IMPROVE AFTER SUNSET AS WINDS SUBSIDE AND THE RELATIVE HUMIDITY BEGINS TO RECOVER. MNZ086-087-094-095-100100- /O.CON.KARX.FW.W.0003.000000T0000Z-120410T0100Z/ DODGE-OLMSTED-MOWER-FILLMORE- 312 PM CDT MON APR 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE HUMIDITY FOR PORTIONS OF SOUTHEAST MINNESOTA... * AFFECTED AREA...PORTIONS OF SOUTHEAST MINNESOTA INCLUDING DODGE...MOWER...OLMSTED...AND FILLMORE COUNTIES. * WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...20 TO 25 PERCENT. * 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 AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ DAS
976 WWUS83 KARX 100045 RFWARX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LA CROSSE WI 745 PM CDT MON APR 9 2012 ...DANGEROUS FIRE CONDITIONS IMPROVING... .WINDS WILL QUICKLY DECREASE EARLY THIS EVENING...WITH AN INCREASE IN RELATIVE HUMIDITY. THUS...THE CRITICAL AND DANGEROUS FIRE WEATHER CONDITIONS WILL CONTINUE TO IMPROVE TONIGHT. MNZ086-087-094-095-100145- /O.EXP.KARX.FW.W.0003.000000T0000Z-120410T0100Z/ DODGE-OLMSTED-MOWER-FILLMORE- 745 PM CDT MON APR 9 2012 ...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT THIS EVENING FOR GUSTY NORTHWEST WINDS AND VERY LOW RELATIVE HUMIDITY FOR PORTIONS OF SOUTHEAST MINNESOTA... WINDS WILL RAPIDLY DECREASE THIS EVENING...WHILE HUMIDITIES INCREASE. THUS...THE CRITICAL AND DANGEROUS FIRE WEATHER CONDITIONS WILL IMPROVE AND THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE. $$ RIECK
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 3:24 AM CDT | Freeze Warning | ARX | Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more | 31 hr |
Nearby
Red 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.