Alert archive / Iowa / Red Flag Warnings in 2012
Red Flag Warning 3, NWS Des Moines, IA
NWS Des Moines, IA issued this red flag warning at Sep 10, 2012, 3:24 PM CDT for 36 counties in Iowa. It took effect at Sep 11, 2012, 11:00 AM 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
- Sep 10, 2012, 3:24 PM CDT (20:24 UTC)
- In effect from
- Sep 11, 2012, 11:00 AM CDT
- Expired
- Sep 11, 2012, 7:12 PM CDT
- In force
- 8 hr
- Issued by
- NWS Des Moines, IA
All 36 counties
Adair County, IA, Adams County, IA, Audubon County, IA, Boone County, IA, Bremer County, IA, Butler County, IA, Calhoun County, IA, Carroll County, IA, Cass County, IA, Cerro Gordo County, IA, Crawford County, IA, Dallas County, IA, Emmet County, IA, Franklin County, IA, Greene County, IA, Grundy County, IA, Guthrie County, IA, Hamilton County, IA, Hancock County, IA, Hardin County, IA, Humboldt County, IA, Kossuth County, IA, Madison County, IA, Marshall County, IA, Palo Alto County, IA, Pocahontas County, IA, Polk County, IA, Ringgold County, IA, Sac County, IA, Story County, IA, Taylor County, IA, Union County, IA, Webster County, IA, Winnebago County, IA, Worth County, IA, Wright County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 8.4 hours before the alert went out and 217 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
- 1686 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
684 WWUS83 KDMX 102024 RFWDMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 324 PM CDT MON SEP 10 2012 ...EXTREME FIRE WEATHER CONDITIONS ARE EXPECTED TUESDAY... .THE COMBINATION OF LOW RELATIVE HUMIDITY...ABNORMALLY DRY CONDITIONS...AND STRONG SOUTH TO SOUTHWEST WINDS WILL RESULT IN EXTREME FIRE WEATHER CONDITIONS ON TUESDAY. IAZ004>007-015>017-023>025-033>035-044>046-057-058-070-110430- /O.UPG.KDMX.FW.A.0003.120911T1800Z-120912T0000Z/ /O.NEW.KDMX.FW.W.0003.120911T1600Z-120912T0200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-SAC-CALHOUN-WEBSTER-CRAWFORD-CARROLL- GREENE-AUDUBON-GUTHRIE-CASS- 324 PM CDT MON SEP 10 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM CDT TUESDAY FOR EXTREME FIRE CONDITIONS.... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A RED FLAG WARNING FOR EXTREME FIRE CONDITIONS...WHICH IS IN EFFECT FROM 11 AM TO 9 PM CDT TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * TIMING...FROM 100 PM TUESDAY AFTERNOON UNTIL 700 PM TUESDAY EVENING. * WIND...SOUTHWEST WIND OF 20 TO 30 MPH...WITH GUSTS TO 40 MPH. * RELATIVE HUMIDITY...DROPPING TO 15 TO 25 PERCENT IN THE AFTERNOON. * FUEL...FIELD CROPS ARE NEARLY CURED AND HAVE BECOME HIGHLY COMBUSTIBLE. IN COMBINATION WITH THE FORECAST CONDITIONS TUESDAY...THIS WOULD LEAD TO RAPID FIRE GROWTH. IN ADDITION...THE DRYING OF GRASSES IS WELL AHEAD OF SCHEDULE DUE TO THE HOT AND DRY CONDITIONS THIS SUMMER. * IMPACTS...IF A FIRE STARTS TUESDAY AFTERNOON...RAPID FIRE GROWTH WOULD BE POSSIBLE AND IT WOULD BE VERY DIFFICULT TO CONTAIN. 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. && $$ IAZ026>028-036>038-047>049-059-060-071-072-081-082-092-093-110430- /O.NEW.KDMX.FW.W.0003.120911T1600Z-120912T0200Z/ FRANKLIN-BUTLER-BREMER-HAMILTON-HARDIN-GRUNDY-BOONE-STORY- MARSHALL-DALLAS-POLK-ADAIR-MADISON-ADAMS-UNION-TAYLOR-RINGGOLD- 324 PM CDT MON SEP 10 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM CDT TUESDAY FOR EXTREME FIRE CONDITIONS.... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A RED FLAG WARNING FOR EXTREME FIRE CONDITIONS...WHICH IS IN EFFECT FROM 11 AM TO 9 PM CDT TUESDAY. * TIMING...FROM 100 PM TUESDAY AFTERNOON UNTIL 700 PM TUESDAY EVENING. * WIND...SOUTHWEST WIND OF 20 TO 30 MPH...WITH GUSTS TO 40 MPH. * RELATIVE HUMIDITY...DROPPING TO 20 TO 25 PERCENT IN THE AFTERNOON. * FUEL...FIELD CROPS ARE NEARLY CURED AND HAVE BECOME HIGHLY COMBUSTIBLE. IN COMBINATION WITH THE FORECAST CONDITIONS TUESDAY...THIS WOULD LEAD TO RAPID FIRE GROWTH. IN ADDITION...THE DRYING OF GRASSES IS WELL AHEAD OF SCHEDULE DUE TO THE HOT AND DRY CONDITIONS THIS SUMMER. * IMPACTS...IF A FIRE STARTS TUESDAY AFTERNOON...RAPID FIRE GROWTH WOULD BE POSSIBLE AND IT WOULD BE VERY DIFFICULT TO CONTAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
5 follow-up statements
016 WWUS83 KDMX 110126 RFWDMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 826 PM CDT MON SEP 10 2012 ...EXTREME FIRE WEATHER CONDITIONS ARE EXPECTED TUESDAY... .THE COMBINATION OF LOW RELATIVE HUMIDITY...ABNORMALLY DRY CONDITIONS...AND STRONG SOUTH TO SOUTHWEST WINDS WILL RESULT IN EXTREME FIRE WEATHER CONDITIONS TUESDAY. IAZ004>007-015>017-023>028-033>038-044>049-057>060-070>072-081- 082-092-093-110930- /O.CON.KDMX.FW.W.0003.120911T1600Z-120912T0200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-CRAWFORD-CARROLL-GREENE-BOONE- STORY-MARSHALL-AUDUBON-GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR-RINGGOLD- 826 PM CDT MON SEP 10 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 9 PM CDT TUESDAY FOR EXTREME FIRE CONDITIONS.... * TIMING...FROM 100 PM TUESDAY AFTERNOON UNTIL 700 PM TUESDAY EVENING. * WIND...SOUTHWEST WIND OF 20 TO 30 MPH...WITH GUSTS TO 40 MPH. * RELATIVE HUMIDITY...DROPPING TO 15 TO 25 PERCENT IN THE AFTERNOON. * FUEL...FIELD CROPS ARE NEARLY CURED AND HAVE BECOME HIGHLY COMBUSTIBLE. IN COMBINATION WITH THE FORECAST CONDITIONS TUESDAY...THIS WOULD LEAD TO RAPID FIRE GROWTH. IN ADDITION... THE DRYING OF GRASSES IS WELL AHEAD OF SCHEDULE DUE TO THE HOT AND DRY CONDITIONS THIS SUMMER. * IMPACTS...IF A FIRE STARTS TUESDAY AFTERNOON...RAPID FIRE GROWTH WOULD BE POSSIBLE AND IT WOULD BE VERY DIFFICULT TO CONTAIN. 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. && $$ REV
168 WWUS83 KDMX 110856 RFWDMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 356 AM CDT TUE SEP 11 2012 ...EXTREME FIRE WEATHER CONDITIONS ARE EXPECTED TODAY... .THE COMBINATION OF LOW RELATIVE HUMIDITY...ABNORMALLY DRY CONDITIONS...AND STRONG SOUTH TO SOUTHWEST WINDS WILL RESULT IN EXTREME FIRE WEATHER CONDITIONS FROM MID DAY THROUGH THIS EVENING. IAZ004>007-015>017-023>028-033>038-044>049-057>060-070>072-081- 082-092-093-111700- /O.CON.KDMX.FW.W.0003.120911T1600Z-120912T0200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-CRAWFORD-CARROLL-GREENE-BOONE- STORY-MARSHALL-AUDUBON-GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR-RINGGOLD- 356 AM CDT TUE SEP 11 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 9 PM CDT THIS EVENING FOR EXTREME FIRE CONDITIONS.... * TIMING...FROM 1100 AM THIS AFTERNOON UNTIL 900 PM THIS EVENING. * WIND...SOUTHWEST WIND OF 20 TO 30 MPH...WITH GUSTS TO 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 18 TO 22 PERCENT. * FUEL...FIELD CROPS ARE NEARLY CURED AND HAVE BECOME HIGHLY COMBUSTIBLE. IN COMBINATION WITH THE FORECAST CONDITIONS TUESDAY...THIS WOULD LEAD TO RAPID FIRE GROWTH. IN ADDITION... THE DRYING OF GRASSES IS WELL AHEAD OF SCHEDULE DUE TO THE HOT AND DRY CONDITIONS THIS SUMMER. * IMPACTS...IF A FIRE STARTS TUESDAY AFTERNOON...RAPID FIRE GROWTH WOULD BE POSSIBLE AND IT WOULD BE VERY DIFFICULT TO CONTAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
191 WWUS83 KDMX 111610 RFWDMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 1110 AM CDT TUE SEP 11 2012 ...EXTREME FIRE WEATHER CONDITIONS ARE EXPECTED THROUGH THIS EVENING... .THE COMBINATION OF LOW RELATIVE HUMIDITY...ABNORMALLY DRY CONDITIONS...AND STRONG SOUTHWEST WINDS WILL RESULT IN EXTREME FIRE WEATHER CONDITIONS FROM MID DAY THROUGH THIS EVENING. IAZ004>007-015>017-023>028-033>038-044>049-057>060-070>072-081- 082-092-093-120000- /O.CON.KDMX.FW.W.0003.000000T0000Z-120912T0200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-CRAWFORD-CARROLL-GREENE-BOONE- STORY-MARSHALL-AUDUBON-GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR-RINGGOLD- 1110 AM CDT TUE SEP 11 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR EXTREME FIRE CONDITIONS.... * TIMING...UNTIL 900 PM THIS EVENING. * WIND...SOUTHWEST WIND OF 20 TO 30 MPH...WITH GUSTS TO 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 19 PERCENT. * FUEL...FIELD CROPS ARE NEARLY CURED AND HAVE BECOME HIGHLY COMBUSTIBLE AND IN COMBINATION WITH THE FORECAST CONDITIONS THIS AFTERNOON...WOULD LEAD TO RAPID FIRE GROWTH. IN ADDITION...THE DRYING OF GRASSES IS WELL AHEAD OF SCHEDULE DUE TO THE HOT AND DRY CONDITIONS THIS SUMMER. * IMPACTS...IF A FIRE STARTS THIS AFTERNOON...RAPID FIRE GROWTH WOULD BE POSSIBLE AND IT WOULD BE VERY DIFFICULT TO CONTAIN. 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. && $$
743 WWUS83 KDMX 112055 RFWDMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 355 PM CDT TUE SEP 11 2012 ...EXTREME FIRE WEATHER CONDITIONS ARE EXPECTED THROUGH THIS EVENING... .THE COMBINATION OF LOW RELATIVE HUMIDITY...ABNORMALLY DRY CONDITIONS...AND STRONG SOUTHWEST WINDS WILL RESULT IN EXTREME FIRE WEATHER CONDITIONS FROM MID DAY THROUGH THIS EVENING. IAZ004>007-015>017-023>028-033>038-044>049-057>060-070>072-081- 082-092-093-120200- /O.CON.KDMX.FW.W.0003.000000T0000Z-120912T0200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-CRAWFORD-CARROLL-GREENE-BOONE- STORY-MARSHALL-AUDUBON-GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR-RINGGOLD- 355 PM CDT TUE SEP 11 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR EXTREME FIRE CONDITIONS.... * TIMING...UNTIL 900 PM THIS EVENING. * WIND...SOUTHWEST WIND OF 15 TO 25 MPH...WITH GUSTS TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * FUEL...FIELD CROPS ARE NEARLY CURED AND HAVE BECOME HIGHLY COMBUSTIBLE AND IN COMBINATION WITH THE FORECAST CONDITIONS LATE THIS AFTERNOON AND EARLY EVENING...WOULD LEAD TO RAPID FIRE GROWTH. IN ADDITION...THE DRYING OF GRASSES IS WELL AHEAD OF SCHEDULE DUE TO THE HOT AND DRY CONDITIONS THIS SUMMER. * IMPACTS...IF A FIRE STARTS THIS AFTERNOON...RAPID FIRE GROWTH WOULD BE POSSIBLE AND IT WOULD BE VERY DIFFICULT TO CONTAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ CC
980 WWUS83 KDMX 120012 RFWDMX URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE DES MOINES IA 712 PM CDT TUE SEP 11 2012 IAZ004>007-015>017-023>028-033>038-044>049-057>060-070>072-081- 082-092-093-120115- /O.CAN.KDMX.FW.W.0003.000000T0000Z-120912T0200Z/ EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO- POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN- WEBSTER-HAMILTON-HARDIN-GRUNDY-CRAWFORD-CARROLL-GREENE-BOONE- STORY-MARSHALL-AUDUBON-GUTHRIE-DALLAS-POLK-CASS-ADAIR-MADISON- ADAMS-UNION-TAYLOR-RINGGOLD- 712 PM CDT TUE SEP 11 2012 ...RED FLAG WARNING IS CANCELLED FOR EXTREME FIRE CONDITIONS.... THE NATIONAL WEATHER SERVICE IN DES MOINES HAS CANCELLED THE RED FLAG WARNING. RED FLAG WARNING CONDITIONS ARE NO LONGER BEING MET WITH GRADUAL BUT SUFFICIENT RISES AND FALLS IN RELATIVE HUMIDITY AND WIND SPEEDS RESPECTIVELY. THUS THE RED FLAG WARNING HAS BEEN CANCELED FOR MUCH OF CENTRAL IOWA. $$ SMALL
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 10, 4:10 AM CDT | Fire Weather Watch | DMX | Audubon, Calhoun, Carroll, Cass, Cerro Gordo, Crawford and 13 more | 11 hr |
Nearby
Red 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.