Alert archive / Iowa / Red Flag Warnings in 2011
Red Flag Warning 3, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this red flag warning at May 4, 2011, 10:16 AM CDT. It took effect at May 4, 2011, 1:00 PM CDT. It was in force for 6 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
- May 4, 2011, 10:16 AM CDT (15:16 UTC)
- In effect from
- May 4, 2011, 1:00 PM CDT
- Expired
- May 4, 2011, 7:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Sioux Falls, SD
The text
As transmitted, in the capitals the NWS used until 2016.
512 WWUS83 KFSD 041516 RFWFSD URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1016 AM CDT WED MAY 4 2011 ...RED FLAG WARNING IN EFFECT THIS AFTERNOON FOR NORTHWEST IOWA... .SOUTHEAST WINDS WILL INCREASE TO AROUND 25 MPH WITH GUSTS OVER 35 MPH THIS AFTERNOON. AT THE SAME TIME...TEMPERATURES WILL WARM INTO THE MID 60S WITH THE RELATIVE HUMIDITY FALLING TO AROUND 25 PERCENT. THE WORST CONDITIONS ARE EXPECTED TO BE EAST OF HIGHWAY 59. AS A COLD FRONT APPROACHES THIS EVENING...CONDITIONS WILL SLOWLY IMPROVE WITH AN INCREASING CHANCE OF RAIN DURING THE EVENING. IAZ300-301-050000- /O.NEW.KFSD.FW.W.0003.110504T1800Z-110505T0000Z/ NORTHERN LOESS HILLS AND FLOYD RIVER BASIN- IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS- 1016 AM CDT WED MAY 4 2011 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 300 AND 301... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. * AFFECTED AREA...IN IOWA...FIRE WEATHER ZONE 300 NORTHERN LOESS HILLS AND FLOYD RIVER BASIN...FIRE WEATHER ZONE 301 IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS. * WIND...SOUTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OVER 35 MPH CAN BE EXPECTED THIS AFTERNOON. THE STRONGEST WINDS ARE EXPECTED TO BE FROM STORM LAKE INTO THE IOWA GREAT LAKES. * HUMIDITY...THE RELATIVE HUMIDITY THIS AFTERNOON WILL RANGE FROM 20 PERCENT AROUND SPENCER AND STORM LAKE TO 30 PERCENT NEAR THE BIG SIOUX RIVER. * IMPACTS...UNDER THESE CONDITIONS...FIRE RATE OF SPREAD IN DORMANT GRASSES WILL BE EXTREMELY FAST. DEBRIS BURNING SHOULD NOT BE PERFORMED TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR IN THE NEAR FUTURE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ SCHUMACHER HTTP://WEATHER.GOV/SIOUXFALLS
2 follow-up statements
238 WWUS83 KFSD 041650 RFWFSD URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 1150 AM CDT WED MAY 4 2011 ...RED FLAG WARNING IN EFFECT THIS AFTERNOON FOR NORTHWEST IOWA AND SOUTHWEST MINNESOTA... .SOUTHEAST WINDS WILL INCREASE TO AROUND 25 MPH WITH GUSTS OVER 35 MPH THIS AFTERNOON. AT THE SAME TIME...TEMPERATURES WILL WARM INTO THE LOWER TO MID 60S WITH THE RELATIVE HUMIDITY FALLING TO AROUND 25 PERCENT. THE WORST CONDITIONS ARE EXPECTED TO BE EAST OF HIGHWAY 59. AS A COLD FRONT APPROACHES THIS EVENING...CONDITIONS WILL SLOWLY IMPROVE WITH AN INCREASING CHANCE OF RAIN DURING THE EVENING. MNZ900-050000- /O.EXA.KFSD.FW.W.0003.110504T1800Z-110505T0000Z/ SOUTHWEST MINNESOTA- 1150 AM CDT WED MAY 4 2011 ...RED FLAG WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 900... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT UNTIL 7 PM CDT THIS EVENING. * AFFECTED AREA...IN MINNESOTA...FIRE WEATHER ZONE 900 SOUTHWEST MINNESOTA. * WIND...SOUTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OVER 35 MPH CAN BE EXPECTED THIS AFTERNOON. THE STRONGEST WINDS ARE EXPECTED TO BE ALONG AND EAST OF THE BUFFALO RIDGE. * HUMIDITY...THE RELATIVE HUMIDITY THIS AFTERNOON WILL RANGE FROM 20 TO 30 PERCENT WITH THE LOWEST RELATIVE HUMIDITY ALONG AND EAST OF INTERSTATE 29. * IMPACTS...UNDER THESE CONDITIONS...FIRE RATE OF SPREAD IN DORMANT GRASSES WILL BE EXTREMELY FAST. DEBRIS BURNING SHOULD NOT BE PERFORMED TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR IN THE NEAR FUTURE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ IAZ300-301-050000- /O.CON.KFSD.FW.W.0003.110504T1800Z-110505T0000Z/ NORTHERN LOESS HILLS AND FLOYD RIVER BASIN- IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS- 1150 AM CDT WED MAY 4 2011 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING FOR LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 300 AND 301... * AFFECTED AREA...IN IOWA...FIRE WEATHER ZONE 300 NORTHERN LOESS HILLS AND FLOYD RIVER BASIN...FIRE WEATHER ZONE 301 IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS. * WIND...SOUTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OVER 35 MPH CAN BE EXPECTED THIS AFTERNOON. THE STRONGEST WINDS ARE EXPECTED TO BE FROM STORM LAKE INTO THE IOWA GREAT LAKES. * HUMIDITY...THE RELATIVE HUMIDITY THIS AFTERNOON WILL RANGE FROM 20 PERCENT AROUND SPENCER AND STORM LAKE TO 30 PERCENT NEAR THE BIG SIOUX RIVER. * IMPACTS...UNDER THESE CONDITIONS...FIRE RATE OF SPREAD IN DORMANT GRASSES WILL BE EXTREMELY FAST. DEBRIS BURNING SHOULD NOT BE PERFORMED TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR IN THE NEAR FUTURE. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ SCHUMACHER HTTP://WEATHER.GOV/SIOUXFALLS
073 WWUS83 KFSD 050004 RFWFSD URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE SIOUX FALLS SD 704 PM CDT WED MAY 4 2011 .HUMIDITY VALUES ARE BEGINNING TO RAISE THIS EVENING AS LIGHT SHOWERS MOVE INTO THE AREA. IAZ300-301-MNZ900-050115- /O.EXP.KFSD.FW.W.0003.000000T0000Z-110505T0000Z/ NORTHERN LOESS HILLS AND FLOYD RIVER BASIN- IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS-SOUTHWEST MINNESOTA- 704 PM CDT WED MAY 4 2011 ...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 300...301 AND 900... THE RED FLAG WARNING IS NO LONGER IN EFFECT. * AFFECTED AREA...IN IOWA...FIRE WEATHER ZONE 300 NORTHERN LOESS HILLS AND FLOYD RIVER BASIN...FIRE WEATHER ZONE 301 IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS. IN MINNESOTA... FIRE WEATHER ZONE 900 SOUTHWEST MINNESOTA. * WIND...SOUTHERLY WINDS WILL CONTINUE TO BE BREEZY THIS EVENING IN THE 15 TO 30 MPH RANGE. * HUMIDITY...HUMIDITY VALUES WILL CONTINUE TO RISE THIS EVENING GREATLY LOWERING THE FIRE THREAT. $$ HTTP://WEATHER.GOV/SIOUXFALLS
Nearby
Red Flag Warnings in Iowa, 2011Red Flag Warnings in Minnesota, 2011Every red flag warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.