Red Flag Warning 51, NWS Cheyenne, WY

Issued

Aug 18, 2012, 1:13 PM CDT (18:13 UTC)

Expired

Aug 18, 2012, 7:45 PM CDT

In force

7 hr

Issued by

NWS Cheyenne, WY

605 
WWUS85 KCYS 181813
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1213 PM MDT SAT AUG 18 2012

...RED FLAG WARNING THROUGH 7 PM THIS EVENING FOR GUSTY WINDS AND
LOW HUMIDITIES FOR THE NEBRASKA PANHANDLE...

.GUSTY NORTH TO NORTHEAST WINDS WILL CONTINUE THIS AFTERNOON. WITH
HUMIDITIES FALLING INTO THE LOW TO MID TEENS THIS
AFTERNOON...CRITICAL FIRE WEATHER CONDITIONS WILL EXIST. THESE
WINDS WILL BEGIN DECREASING TOWARDS LATE AFTERNOON.

NEZ311>313-190100-
/O.NEW.KCYS.FW.W.0051.120818T1813Z-120819T0100Z/
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-
BOX BUTTE/SOUTH SIOUX-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
1213 PM MDT SAT AUG 18 2012

...RED FLAG WARNING IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 311...
312 AND 313...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
UNTIL 7 PM MDT THIS EVENING.

* AFFECTED AREA...FIRE WEATHER ZONE 311 PINE RIDGE/NEBRASKA 
  NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS...FIRE WEATHER ZONE 
  312 BOX BUTTE/SOUTH SIOUX AND FIRE WEATHER ZONE 313 SCOTTS 
  BLUFF NATIONAL MONUMENT/WILDCAT HILLS.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 12 PERCENT.

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTH WINDS
  WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS THROUGH THE LATE
  AFTERNOON.

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.

&&

$$

628 
WWUS85 KCYS 190045
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
645 PM MDT SAT AUG 18 2012

...THE RED FLAG WARNING FOR THE WESTERN NEBRASKA PANHANDLE HAS
BEEN CANCELLED...

.THE GUSTY NORTHERLY WINDS HAVE DIMINISHED EARLY THIS EVENING 
OVER THE WESTERN NEBRASKA PAANHANDLE. ALSO...THE RELATIVE HUMIDITY
VALUES ARE SLOWLY INCREASING. FOR THOSE REASONS...THE CRITICAL
FIRE WEATHER CONDITIONS HAVE ENDED OVER THE WESTERN NEBRASKA 
PANHANDLE. 

NEZ311>313-190145-
/O.CAN.KCYS.FW.W.0051.000000T0000Z-120819T0100Z/
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-
BOX BUTTE/SOUTH SIOUX-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
645 PM MDT SAT AUG 18 2012

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 311...312 AND 313...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE RED
FLAG WARNING.

WINDS HAVE DECREASED OVER THE WESTERN NEBRASKA PANHANDLE EARLY
THIS EVENING AND WINDS WILL BE LIGHT FOR THE REST OF THE NIGHT. 
IN ADDITION...RELATIVE HUMIDITY VALUES WILL CONTINUE TO SLOWLY
INCREASE OVER THAT AREA THE REST OF TONIGHT. 

$$

WEILAND

Red Flag Warnings in Nebraska, 2012Every red flag warning in 2012

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.