Alert archive / Utah / Red Flag Warnings in 2011

Red Flag Warning 14, NWS Salt Lake City, UT

July 17, 2011

NWS Salt Lake City, UT issued this red flag warning at Jul 17, 2011, 8:20 AM MDT. It took effect at Jul 17, 2011, 12:00 PM MDT. 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
Jul 17, 2011, 8:20 AM MDT (14:20 UTC)
In effect from
Jul 17, 2011, 12:00 PM MDT
Expired
Jul 17, 2011, 8:59 PM MDT
In force
9 hr
Issued by
NWS Salt Lake City, UT

The text

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

293 
WWUS85 KSLC 171420
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
820 AM MDT SUN JUL 17 2011

UTZ439-171530-
/O.CAN.KSLC.FW.W.0013.000000T0000Z-110718T0300Z/
UTAHS DIXIE AND ZION CANYON-
820 AM MDT SUN JUL 17 2011

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY
FOR FIRE ZONE 439...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE
RED FLAG WARNING FOR FIRE ZONE 439 UTAHS DIXIE AND ZION CANYON.

WINDS AND HUMIDITIES ARE NO LONGER EXPECTED TO REACH CRITICAL
VALUES TODAY. HOWEVER...THERE IS A POTENTIAL OF BRIEF STRONG GUSTY
AND ERRATIC OUTFLOW WINDS FROM THUNDERSTORMS IN THIS AREA THIS
AFTERNOON AND EVENING.

$$

UTZ420-434-180230-
/O.NEW.KSLC.FW.W.0014.110717T1800Z-110718T0300Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
WEST CENTRAL DESERTS AND MOUNTAINS-
820 AM MDT SUN JUL 17 2011

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 420 AND
434...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING. 

* AFFECTED AREA: FIRE ZONE 420 GREAT SALT LAKE DESERT AND 
  MOUNTAINS...FIRE ZONE 434 WEST CENTRAL DESERTS AND MOUNTAINS.

* WIND: SOUTH WINDS 15 TO 25 MPH DEVELOPING BY LATE MORNING AND
  CONTINUING THROUGH MID EVENING WITH GUSTS OVER 30 MPH. DRY
  THUNDERSTORMS LATE TODAY AND THIS EVENING IN ZONE 434 COULD
  GENERATE BRIEF GUSTS OVER 50 MPH.

* HUMIDITY: DROPPING BELOW 15 PERCENT AROUND MIDDAY AND AS LOW AS
  ABOUT 9 PERCENT THROUGH THE LATE AFTERNOON. 

* IMPACTS: THE COMBINATION OF WINDS AND LOW HUMIDITY WILL CREATE
  AREAS OF CRITICAL 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)
2 follow-up statements
651 
WWUS85 KSLC 172006
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
206 PM MDT SUN JUL 17 2011

UTZ420-434-180300-
/O.CON.KSLC.FW.W.0014.000000T0000Z-110718T0300Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
WEST CENTRAL DESERTS AND MOUNTAINS-
206 PM MDT SUN JUL 17 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 420 AND 434...

* AFFECTED AREA: FIRE ZONE 420 GREAT SALT LAKE DESERT AND 
  MOUNTAINS...FIRE ZONE 434 WEST CENTRAL DESERTS AND MOUNTAINS.

* WIND: SOUTH WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL
  CONTINUE INTO THIS EVENING THEN DIMINISH. DRY THUNDERSTORMS THIS
  EVENING IN EASTERN ZONE 434 COULD GENERATE BRIEF GUSTS OVER 50
  MPH.

* HUMIDITY: VALUES BELOW 10 PERCENT WILL CONTINUE INTO EARLY THIS
  EVENING THEN GRADUALLY RECOVER. 

* IMPACTS: THE COMBINATION OF WIND AND LOW HUMIDITY WILL CREATE
  AREAS OF CRITICAL 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)
831 
WWUS85 KSLC 180259
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
859 PM MDT SUN JUL 17 2011

UTZ420-434-180400-
/O.CAN.KSLC.FW.W.0014.000000T0000Z-110718T0300Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
WEST CENTRAL DESERTS AND MOUNTAINS-
859 PM MDT SUN JUL 17 2011

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY
FOR FIRE ZONES 420 AND 434...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ALLOWED THE RED
FLAG WARNING FOR FIRE WEATHER ZONES 420 AND 434 TO EXPIRE.

THE GUSTY SOUTH WINDS FROM THIS AFTERNOON HAVE BEEN TRENDING
DOWNWARD THIS EVENING. THIS TREND WILL CONTINUE OVERNIGHT.
HUMIDITIES STILL REMAIN IN THE SINGLE DIGITS TO MID-TEENS OVER
MUCH OF THE AREA AT MID-EVENING. MOISTURE INCREASING FROM THE EAST
WILL SLOWLY INCREASE HUMIDITIES OVERNIGHT...WITH HUMIDITIES
CONTINUING TO CLIMB DUE TO INCREASING SHOWERS AND THUNDERSTORMS
MONDAY. 



$$


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

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 17, 5:45 PM MDTSpecial Weather StatementSLCRich30 min

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.