Alert archive / Utah / Red Flag Warnings in 2011

Red Flag Warning 18, NWS Salt Lake City, UT

August 9, 2011

NWS Salt Lake City, UT issued this red flag warning at Aug 9, 2011, 3:24 AM MDT. It took effect at Aug 9, 2011, 1:00 PM MDT. It was in force for 7 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
Aug 9, 2011, 3:24 AM MDT (09:24 UTC)
In effect from
Aug 9, 2011, 1:00 PM MDT
Expired
Aug 9, 2011, 8:00 PM MDT
In force
7 hr
Issued by
NWS Salt Lake City, UT

The text

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

511 
WWUS85 KSLC 090924
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
324 AM MDT TUE AUG 9 2011

UTZ439>441-446-092100-
/O.NEW.KSLC.FW.W.0018.110809T1900Z-110810T0200Z/
UTAHS DIXIE AND ZION CANYON-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-
ARCHES NATIONAL PARK AND SURROUNDING AREAS-
324 AM MDT TUE AUG 9 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 439...440...441 AND 446...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED
FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN
EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MDT THIS EVENING. 

* AFFECTED AREA...FIRE WEATHER ZONE 439 UTAHS DIXIE AND ZION 
  CANYON...FIRE WEATHER ZONE 440 SOUTH CENTRAL UTAH...FIRE 
  WEATHER ZONE 441 GLEN CANYON RECREATION AREA/LAKE POWELL AND 
  FIRE WEATHER ZONE 446 ARCHES NATIONAL PARK AND SURROUNDING 
  AREAS.

* WINDS...SOUTHWEST 15 TO 20 MPH WITH GUSTS OVER 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 4 PERCENT.

* IMPACTS...COMBINATION OF DRY FUELS...EXTREMELY LOW RH AND GUSTY
  WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS.

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.

&&

$$

UTZ434-435-445-447-448-092100-
/O.NEW.KSLC.FW.W.0018.110809T1900Z-110810T0200Z/
WEST CENTRAL DESERTS AND MOUNTAINS-
SOUTHWEST DESERTS AND MOUNTAINS-GRAND FLAT/ROAN AND BOOK CLIFFS-
CANYONLANDS NATIONAL PARK AND NATURAL BRIDGES NATIONAL MONUMENT-
LA SAL AND ABAJO MOUNTAINS-
324 AM MDT TUE AUG 9 2011

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM
MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 434...435...445...447 AND 448 BELOW 7500 FEET...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED
FLAG WARNING BELOW 7500 FEET FOR WIND AND LOW RELATIVE HUMIDITY...
WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MDT THIS
EVENING. 

* AFFECTED AREA...FIRE WEATHER ZONE 434 WEST CENTRAL DESERTS AND 
  MOUNTAINS BELOW 7500 FEET...FIRE WEATHER ZONE 435 SOUTHWEST 
  DESERTS AND MOUNTAINS BELOW 7500 FEET...FIRE WEATHER ZONE 445 
  GRAND FLAT/ROAN AND BOOK CLIFFS BELOW 7500 FEET...FIRE WEATHER 
  ZONE 447 CANYONLANDS NATIONAL PARK AND NATURAL BRIDGES 
  NATIONAL MONUMENT BELOW 7500 FEET AND FIRE WEATHER ZONE 448 LA 
  SAL AND ABAJO MOUNTAINS BELOW 7500 FEET.

* WINDS...SOUTHWEST 15 TO 20 MPH WITH GUSTS OVER 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 5 PERCENT.

* IMPACTS...COMBINATION OF DRY FUELS...EXTREMELY LOW RH AND GUSTY
  WINDS WILL RESULT IN HAZARDOUS FIRE WEATHER CONDITIONS.

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.

&&

$$

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)

Nearby

Red Flag Warnings in Utah, 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.