Alert archive / Iowa / Red Flag Warnings in 2012

Red Flag Warning 6, NWS Sioux Falls, SD

April 1, 2012

NWS Sioux Falls, SD issued this red flag warning at Apr 1, 2012, 4:25 PM CDT. It was in force for 4 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 1, 2012, 4:25 PM CDT (21:25 UTC)
Expired: Apr 1, 2012, 8:00 PM CDT
In force: 4 hr
Issued by: NWS Sioux Falls, SD

The text

As transmitted, in the capitals the NWS used until 2016.

361 
WWUS83 KFSD 012125
RFWFSD

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
425 PM CDT SUN APR 1 2012

...RED FLAG WARNING UNTIL 8 PM CDT THIS EVENING FOR WIND AND LOW
RELATIVE HUMIDITY...

.RECORD WARMTH AND DRY RELATIVE HUMIDITY...ALONG WITH SOUTHERLY WINDS
GUSTING TO OVER 25 MPH...WILL PRODUCE RED FLAG CONDITIONS ACROSS MUCH
OF NORTHWEST IOWA AND EXTREME NORTHEAST NEBRASKA FOR THE REMAINDER OF
THE AFTERNOON.

IAZ300-301-NEZ249-020100-
/O.NEW.KFSD.FW.W.0006.120401T2125Z-120402T0100Z/
NORTHERN LOESS HILLS AND FLOYD RIVER BASIN-
IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS-
EXTREME NORTHEAST NEBRASKA-
425 PM CDT SUN APR 1 2012

...RED FLAG WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 249...
300 AND 301...

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
UNTIL 8 PM CDT THIS EVENING.

* AFFECTED AREA...IN IOWA...FIRE WEATHER ZONES 300 AND 301. IN 
  NEBRASKA...FIRE WEATHER ZONE 249.

* WINDS...SOUTHEAST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 18 PERCENT.

* IMPACTS...ANY FIRES THAT START WILL SPREAD RAPIDLY DUE TO THE GUSTY
  WINDS AND LOW HUMIDITY CONDITIONS...COUPLED WITH DRY VEGETATION.
  FIRES WILL EXHIBIT EXTREME CHARACTERISTICS...INCLUDING LONG RANGE
  SPOTTING POTENTIAL AND RAPID MOVEMENT.

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.

&&

$$

1 follow-up statement

325 
WWUS83 KFSD 020108
RFWFSD

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
808 PM CDT SUN APR 1 2012


IAZ300-301-NEZ249-020215-
/O.EXP.KFSD.FW.W.0006.000000T0000Z-120402T0100Z/
NORTHERN LOESS HILLS AND FLOYD RIVER BASIN-
IOWA GREAT LAKES/ROCK AND LITTLE SIOUX BASINS-
EXTREME NORTHEAST NEBRASKA-
808 PM CDT SUN APR 1 2012

...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR
FIRE WEATHER ZONES 249...300 AND 301...

WITH WINDS DECREASING TO LESS THAN 25 MPH AND THE RELATIVE
HUMIDITY RISING AS TEMPERATURE COOL...THE RED FLAG WARNING HAS
BEEN ALLOWED TO EXPIRE.

$$

SCHUMACHER

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 1, 3:22 AM CDT	Dense Fog Advisory	FSD	Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 3 more	7 hr

Nearby

Red Flag Warnings in Iowa, 2012 Red Flag Warnings in Nebraska, 2012 Every 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.