Alert archive / Utah / Red Flag Warnings in 2011

Red Flag Warning 16, NWS Salt Lake City, UT

July 21, 2011

NWS Salt Lake City, UT issued this red flag warning at Jul 21, 2011, 2:09 PM MDT. It took effect at Jul 22, 2011, 12:00 PM MDT. It was in force for 10 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 21, 2011, 2:09 PM MDT (20:09 UTC)
In effect from
Jul 22, 2011, 12:00 PM MDT
Expired
Jul 22, 2011, 10:01 PM MDT
In force
10 hr
Issued by
NWS Salt Lake City, UT

The text

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

164 
WWUS85 KSLC 212009
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
209 PM MDT THU JUL 21 2011

UTZ439-221100-
/O.NEW.KSLC.FW.W.0016.110722T1800Z-110723T0300Z/
UTAHS DIXIE AND ZION CANYON-
209 PM MDT THU JUL 21 2011

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 439...

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 NOON TO 9 PM MDT FRIDAY. 

* AFFECTED AREA...FIRE WEATHER ZONE 439 UTAHS DIXIE AND ZION 
  CANYON.

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 8 PERCENT.

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE
  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.

&&

$$

UTZ440-221100-
/O.NEW.KSLC.FW.W.0016.110722T1800Z-110723T0300Z/
SOUTH CENTRAL UTAH-
209 PM MDT THU JUL 21 2011

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 440 BELOW
6000 FEET...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED
FLAG WARNING BELOW 6000 FEET FOR WIND AND LOW RELATIVE HUMIDITY...
WHICH IS IN EFFECT FROM NOON TO 9 PM MDT FRIDAY. 

* AFFECTED AREA...FIRE WEATHER ZONE 440 SOUTH CENTRAL UTAH BELOW 
  6000 FEET.

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE
  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.

&&

$$

UTZ434-435-221100-
/O.NEW.KSLC.FW.W.0016.110722T1800Z-110723T0300Z/
WEST CENTRAL DESERTS AND MOUNTAINS-
SOUTHWEST DESERTS AND MOUNTAINS-
209 PM MDT THU JUL 21 2011

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT FRIDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 434 AND
435 BELOW 7000 FEET...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED
FLAG WARNING BELOW 7000 FEET FOR WIND AND LOW RELATIVE HUMIDITY...
WHICH IS IN EFFECT FROM NOON TO 9 PM MDT FRIDAY. 

* AFFECTED AREA...FIRE WEATHER ZONE 434 WEST CENTRAL DESERTS AND 
  MOUNTAINS BELOW 7000 FEET AND FIRE WEATHER ZONE 435 SOUTHWEST 
  DESERTS AND MOUNTAINS BELOW 7000 FEET.

* WINDS...SOUTHWEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH.

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

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE
  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)
3 follow-up statements
106 
WWUS85 KSLC 220831
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
231 AM MDT FRI JUL 22 2011

UTZ420-222200-
/O.EXB.KSLC.FW.W.0016.110723T0000Z-110723T0600Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
231 AM MDT FRI JUL 22 2011

...RED FLAG WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT
MDT TONIGHT FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONE 420...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT MDT TONIGHT. 

* AFFECTED AREA...FIRE WEATHER ZONE 420 GREAT SALT LAKE DESERT AND
  MOUNTAINS.

* WINDS...SOUTHEASTERLY UPSLOPE WINDS OF 5-10 MPH WILL SWITCH TO
  THE NORTHWEST RAPIDLY DURING THE EVENING...INCREASING THEREAFTER
  TO 20-25 MPH WITH GUSTS TO 40 MPH.

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

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE
  HAZARDOUS FIRE WEATHER CONDITIONS IN THE EVENING HOURS BEFORE
  WINDS DISSIPATE AND RH CLIMBS THROUGH THE SECOND HALF OF THE NIGHT.

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.

&&

$$

UTZ439-222200-
/O.CON.KSLC.FW.W.0016.110722T1800Z-110723T0300Z/
UTAHS DIXIE AND ZION CANYON-
231 AM MDT FRI JUL 22 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONE 439...

* AFFECTED AREA...FIRE WEATHER ZONE 439 UTAHS DIXIE AND ZION 
  CANYON.

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 8 PERCENT.

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE 
  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.

&&

$$

UTZ440-222200-
/O.CON.KSLC.FW.W.0016.110722T1800Z-110723T0300Z/
SOUTH CENTRAL UTAH-
231 AM MDT FRI JUL 22 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONE
440 BELOW 6000 FEET...

* AFFECTED AREA...FIRE WEATHER ZONE 440 SOUTH CENTRAL UTAH 
  BELOW 6000 FEET. 

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE 
  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.

&&

$$

UTZ434-435-222200-
/O.CON.KSLC.FW.W.0016.110722T1800Z-110723T0300Z/
WEST CENTRAL DESERTS AND MOUNTAINS-
SOUTHWEST DESERTS AND MOUNTAINS-
231 AM MDT FRI JUL 22 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES
434 AND 435 BELOW 7000 FEET...

* AFFECTED AREA...FIRE WEATHER ZONE 434 WEST CENTRAL DESERTS 
  AND MOUNTAINS BELOW 7000 FEET AND FIRE WEATHER ZONE 435 
  SOUTHWEST DESERTS AND MOUNTAINS BELOW 7000 FEET.

* WINDS...SOUTHWEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH.

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

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE 
  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)
351 
WWUS85 KSLC 222150
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
350 PM MDT FRI JUL 22 2011

UTZ439-230300-
/O.CON.KSLC.FW.W.0016.000000T0000Z-110723T0300Z/
UTAHS DIXIE AND ZION CANYON-
350 PM MDT FRI JUL 22 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONE 439...

* AFFECTED AREA...FIRE WEATHER ZONE 439 UTAHS DIXIE AND ZION 
  CANYON. 

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 8 PERCENT.

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE 
  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.

&&

$$

UTZ420-230600-
/O.CON.KSLC.FW.W.0016.110723T0000Z-110723T0600Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
350 PM MDT FRI JUL 22 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT
FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONE 420...

* AFFECTED AREA...FIRE WEATHER ZONE 420 GREAT SALT LAKE DESERT 
  AND MOUNTAINS. 

* WINDS...NORTHWEST WINDS WILL INCREASE TO 25-30 MPH BEHIND THE 
FRONT WITH GUSTS UP TO 35 MPH.

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

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE 
  HAZARDOUS FIRE WEATHER CONDITIONS IN THE EVENING HOURS BEFORE 
  WINDS DISSIPATE AND RH CLIMBS THROUGH THE SECOND HALF OF THE 
  NIGHT. 

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.

&&

$$

UTZ440-230300-
/O.CON.KSLC.FW.W.0016.000000T0000Z-110723T0300Z/
SOUTH CENTRAL UTAH-
350 PM MDT FRI JUL 22 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONE 440 BELOW
6000 FEET...

* AFFECTED AREA...FIRE WEATHER ZONE 440 SOUTH CENTRAL UTAH BELOW 
  6000 FEET. 

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE 
  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.

&&

$$

UTZ434-435-230300-
/O.CON.KSLC.FW.W.0016.000000T0000Z-110723T0300Z/
WEST CENTRAL DESERTS AND MOUNTAINS-
SOUTHWEST DESERTS AND MOUNTAINS-
350 PM MDT FRI JUL 22 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE ZONES 434 AND 435 BELOW
7000 FEET...

* AFFECTED AREA...FIRE WEATHER ZONE 434 WEST CENTRAL DESERTS AND 
  MOUNTAINS BELOW 7000 FEET AND FIRE WEATHER ZONE 435 SOUTHWEST 
  DESERTS AND MOUNTAINS BELOW 7000 FEET. 

* WINDS...SOUTHWEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH.

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

* IMPACTS...THE WINDS AND LOW HUMIDITY WILL COMBINE TO CREATE 
  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)
899 
WWUS85 KSLC 230401
RFWSLC

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1001 PM MDT FRI JUL 22 2011

UTZ420-230515-
/O.CAN.KSLC.FW.W.0016.000000T0000Z-110723T0600Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
1001 PM MDT FRI JUL 22 2011

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

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE
RED FLAG WARNING. HUMIDITY RECOVERED FASTER THAN ANTICIPATED IN
WAKE OF THE COLD FRONTAL PASSAGE. CRITICAL FIRE WEATHER CONCERNS
FOR FIRE WEATHER ZONE 420 GREAT SALT LAKE DESERT AND MOUNTAINS ARE
NO LONGER EXPECTED THIS EVENING.


$$


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.