Alert archive / Nebraska / Red Flag Warnings in 2012

Red Flag Warning 77, NWS Cheyenne, WY

November 21, 2012

NWS Cheyenne, WY issued this red flag warning at Nov 21, 2012, 3:59 AM CST. It took effect at Nov 21, 2012, 10:00 AM CST. It was in force for 9 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
Nov 21, 2012, 3:59 AM CST (09:59 UTC)
In effect from
Nov 21, 2012, 10:00 AM CST
Expired
Nov 21, 2012, 6:57 PM CST
In force
9 hr
Issued by
NWS Cheyenne, WY

The text

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

765 
WWUS85 KCYS 210959
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
259 AM MST WED NOV 21 2012

...RED FLAG WARNING LATE THIS MORNING AND THIS AFTERNOON FOR PART
OF SOUTHEAST WYOMING AND WESTERN NEBRASKA...

.SURFACE LOW PRESSURE WILL STRENGTHEN TODAY ACROSS THE WESTERN
DAKOTAS AND WILL COMBINE WITH A STRENGTHENING PRESSURE GRADIENT...
LOW HUMIDITIES AND GUSTY WEST WINDS TO PRODUCE CRITICAL FIRE WEATHER
CONDITIONS LATE THIS MORNING AND THIS AFTERNOON.

NEZ311>313-WYZ310-220100-
/O.NEW.KCYS.FW.W.0077.121121T1600Z-121122T0100Z/
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-
BOX BUTTE/SOUTH SIOUX-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
259 AM MST WED NOV 21 2012

...RED FLAG WARNING IN EFFECT FROM 9 AM THIS MORNING TO 6 PM MST
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER
ZONES 310...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
FROM 9 AM THIS MORNING TO 6 PM MST THIS EVENING.

* AFFECTED AREA...FIRE WEATHER ZONE 310 PLATTE/GOSHEN/CENTRAL 
  AND EASTERN LARAMIE...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...WEST 15 TO 30 MPH WITH GUSTS UP TO 45 MPH ACROSS
  WESTERN LARAMIE COUNTY...AND UP TO 35 MPH ELSEWHERE. 

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* IMPACTS...GUSTY WINDS AND LOW RELATIVE HUMIDITIES WILL RESULT IN
  THE POTENTIAL FOR RAPID FIRE WEATHER GROWTH.

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.

&&

$$

RUBIN
1 follow-up statement
754 
WWUS85 KCYS 220057
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
557 PM MST WED NOV 21 2012

...RED FLAG WARNING HAS BEEN CANCELLED...

.RELATIVE HUMIDITIES HAVE RISEN ABOVE CRITERIA REQURIED FOR RED
FLAG WARNINGS THEREFORE THE RED FLAG WARNING IS NO LONGER IN EFFECT.

NEZ311>313-WYZ310-220200-
/O.CAN.KCYS.FW.W.0077.000000T0000Z-121122T0100Z/
PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS-
BOX BUTTE/SOUTH SIOUX-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
557 PM MST WED NOV 21 2012

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 310...311...312 AND 313...

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



$$

GRIFFITH

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 21, 3:52 AM CSTHigh Wind WatchCYSBanner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more10 hr
Nov 21, 3:52 AM CSTHigh Wind WarningCYSBanner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more36 hr

Nearby

Red Flag Warnings in Nebraska, 2012Red Flag Warnings in Wyoming, 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.