Red Flag Warning 11, NWS Salt Lake City, UT

000 
WWUS85 KSLC 060442
RFWSLC

RED FLAG WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1042 PM MDT TUE JUN 5 2007

UTZ423-424-426-427-434>437-060800-
/O.NEW.KSLC.FW.W.0012.070606T0442Z-070606T0800Z/
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
WASATCH MOUNTAINS NORTH OF I80-
WASATCH MOUNTAINS SOUTH OF I80 AND NORTHERN AND WESTERN SLOPES
OF THE UINTA MOUNTAINS-WEST CENTRAL DESERTS AND MOUNTAINS-
SOUTHWEST DESERTS AND MOUNTAINS-CENTRAL UTAH MOUNTAINS-
SOUTHWEST AND SOUTH CENTRAL MOUNTAINS-
1042 PM MDT TUE JUN 5 2007

...RED FLAG WARNING IN EFFECT UNTIL 2 AM MDT WEDNESDAY FOR WINDS AND 
LOW RH AND A DRY COLD FRONT PASSAGE. THIS WARNING IS FOR FIRE WEATHER
ZONES 423...424...426...AND 434 THROUGH 437 IN NORTHERN AND CENTRAL 
UTAH....

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT UNTIL 2 AM MDT WEDNESDAY FOR WINDS AND 
LOW RH. THIS WARNING IS FOR FIRE WEATHER ZONES 423...424...426...AND
434 THROUGH 437 IN NORTHERN AND CENTRAL UTAH.

STRONG WINDS AHEAD OF A COLD FRONT...COMBINED WITH VERY LOW RH
WILL KEEP MANY AREA WITHING RED FLAG CONDITIONS FOR A FEW MORE
HOURS THIS EVENING. AS THE COLD FRONT PASSES...WINDS WILL SHIFT TO
NORTHWESTERLY...BUT IT MAY TAKE AN HOUR OR TWO FOR RH VALUES TO
CLIMB ABOVE 15 PERCENT. THE WIND SHIFT MAY ALSO IMPACT ANY ACTIVE
FIRES.

CLIMBING RELATIVE HUMIDITIES AND PRECIPITATION WILL ALLEVIATE THE
FIRE WEATHER SITUATION TOWARD MORNING.

A RED FLAG WARNING MEANS THAT SEVERE FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW...OR WILL SHORTLY.

$$

UTZ439>441-061100-
/O.EXT.KSLC.FW.W.0011.070606T0442Z-070607T0300Z/
UTAHS DIXIE AND ZION CANYON-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-
1042 PM MDT TUE JUN 5 2007

...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT WEDNESDAY FOR 
WINDS AND LOW RH. THIS INCLUDES FIRE WEATHER ZONES 439 THROUGH 441 IN
SOUTHERN UTAH...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 9 PM MDT WEDNESDAY FOR 
WINDS AND LOW RH. THIS INCLUDES FIRE WEATHER ZONES 439 THROUGH 441 IN
SOUTHERN UTAH...

STRONG SOUTHERLY WINDS AHEAD OF A COLD FRONT WILL PERSIST ACROSS
FAR SOUTHERN UTAH. RH VALUES MAY CLIME TO ABOVE 15 PERCENT
TONIGHT. HUMIDITIES WILL DROP QUICKLY ONCE AGAIN ON WEDNESDAY AHEAD
OF THE FRONT. THIS COMBINED WITH THE STRONG WINDS WILL CONTINUE
TO RESULT IN WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS OVER
EXTREME SOUTHERN UTAH THROUGH THIS EVENING.

AS THIS FRONT PASSES THROUGH THE AREA...WINDS WILL BECOME
WESTERLY BUT REMAIN STRONG DURING THE DAY WEDNESDAY. LOW
HUMIDITIES ARE EXPECTED TO REMAIN IN PLACE NEAR THE ARIZONA
BORDER...ONCE AGAIN RESULTING IN CRITICAL FIRE WEATHER CONDITIONS
ACROSS THIS AREA.

A RED FLAG WARNING MEANS THAT SEVERE FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW...OR WILL SHORTLY.

$$

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

000 
WWUS85 KSLC 061013
RFWSLC

RED FLAG WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
413 AM MDT WED JUN 6 2007

UTZ439>441-062000-
/O.CON.KSLC.FW.W.0011.000000T0000Z-070607T0300Z/
UTAHS DIXIE AND ZION CANYON-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-
413 AM MDT WED JUN 6 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING FOR WIND AND LOW RH. THIS INCLUDES FIRE WEATHER ZONES
439 THROUGH 441 IN SOUTHERN UTAH...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR WIND AND LOW RH. THIS INCLUDES FIRE WEATHER ZONES 439 THROUGH
441 IN SOUTHERN UTAH.

STRONG SOUTHERLY WINDS AHEAD OF A COLD FRONT WILL PERSIST ACROSS
FAR SOUTHERN UTAH. RH RECOVERY WAS INSIGNIFICANT OVERNIGHT...AND
RH VALUES WILL QUICKLY FALL BELOW 15 PERCENT THIS MORNING. THIS
COMBINED WITH THE STRONG WINDS WILL CONTINUE TO RESULT IN
WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS OVER EXTREME SOUTHERN
UTAH THROUGH THIS EVENING.

IN AIDDITION...THE FRONT ITSELF WILL HAVE LITTLE OR NO RAIN
INITIALLY. THIS WILL RESULT IN A DRY COLD FRONT PASSAGE OVER MANY
AREAS. ISOLATED DRY THUNDERSTORMS ARE ALSO POSSIBLE THIS AFTERNOON.

A RED FLAG WARNING MEANS THAT SEVERE FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW...OR WILL SHORTLY.

$$

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

000 
WWUS85 KSLC 061937
RFWSLC

RED FLAG WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
137 PM MDT WED JUN 6 2007

UTZ439>441-070300-
/O.CON.KSLC.FW.W.0011.000000T0000Z-070607T0300Z/
UTAHS DIXIE AND ZION CANYON-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-
137 PM MDT WED JUN 6 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING FOR STRONG WEST WINDS AND LOW RELATIVE HUMIDITY ALONG 
THE UTAH ARIZONA BORDER. THIS RED FLAG WARNING IS FOR ZONES 439 
THROUGH 441...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR EXTREME SOUTHERN UTAH. 

STRONG WEST SOUTHWESTERLY WINDS OF 20 TO 30 MPH...WITH GUSTS IN
EXCESS OF 45 MPH...WILL PERSIST ACROSS FAR SOUTHERN UTAH INTO THE
EVENING HOURS. THIS COMBINED WITH HUMIDITY VALUES BELOW 15 PERCENT
WILL CONTINUE TO RESULT IN CRITICAL FIRE WEATHER CONDITIONS ACROSS
FAR SOUTHERN UTAH INTO THE EVENING HOURS. 

IN ADDITION TO THE WINDS AND LOW HUMIDITY...ISOLATED DRY
THUNDERSTORMS DEVELOPING ACROSS THE HIGHER TERRAIN OF SOUTHERN
UTAH MAY SPREAD SOUTHWARD ACROSS LOWER ELEVATIONS OF FAR SOUTHERN
UTAH THROUGH THE EARLY EVENING HOURS. 

A RED FLAG WARNING MEANS SEVERE FIRE WEATHER CONDITIONS ARE EITHER
OCCURRING NOW...OR WILL SHORTLY.

$$

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

000 
WWUS85 KSLC 070319
RFWSLC

RED FLAG WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
919 PM MDT WED JUN 6 2007

UTZ439>441-070430-
/O.EXP.KSLC.FW.W.0011.000000T0000Z-070607T0300Z/
UTAHS DIXIE AND ZION CANYON-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-
919 PM MDT WED JUN 6 2007

...RED FLAG WARNING HAS EXPIRED FOR FIRE WEATHER ZONES 439 THROUGH 441...

THE RED FLAG WARNING IS NO LONGER IN EFFECT FOR FIRE WEATHER ZONES
439 THROUGH 441.

THOUGH RELATIVE HUMIDITY VALUES REMAIN BELOW CRITICAL LEVELS
ACROSS PORTIONS OF EXTREME SOUTHERN UTAH...WINDS HAVE DECREASED
BELOW RED FLAG CRITERIA. ISOLATED AREAS...PARTICULARLY IN SOUTH
CENTRAL UTAH...MAY SEE GUSTS NEAR 25 MPH FOR THE NEXT COUPLE OF
HOURS. OTHERWISE...RED FLAG CONDITIONS ARE NO LONGER EXPECTED.

$$

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

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
932 AM MDT TUE JUN 5 2007

.SYNOPSIS...AN UNSEASONABLY COLD PACIFIC STORM SYSTEM WILL MOVE INTO
THE GREAT BASIN TODAY. THIS STORM WILL REMAIN OVER THE AREA THROUGH
THE END OF THE WEEK. DRIER CONDITIONS AND MORE SEASONAL TEMPERATURES
WILL RETURN THIS WEEKEND.

&&

.DISCUSSION...THE DEEP UPPER TROUGH IS CURRENTLY MOVING ONSHORE THE
PACIFIC NORTHWEST. THIS NEGATIVELY TILTED TROUGH WILL CONTINUE TO
MOVE SOUTHEAST TODAY AND INTO THE WESTERN GREAT BASIN THIS EVENING.
STRONG WARMING AHEAD OF THE COLD FRONT WILL TIGHTEN THE THERMAL
GRADIENT ALONG THE FRONT THIS AFTERNOON. THIS WILL HELP TO
STRENGTHEN THE WINDS AHEAD OF THE COLD FRONT THIS AFTERNOON AND
EVENING. WIND GUSTS OF 30 TO 35 KTS ARE ALREADY BEING REPORTED IN
WIND PRONE AREAS INCLUDING THE TOOELE VALLEY AND PARTS OF THE SALT
LAKE VALLEY. THESE WINDS WILL ONLY INCREASE THROUGHOUT THE
AFTERNOON. IN ADDITION TO THE WINDS...RELATIVE HUMIDITIES HAVE
ALREADY FALLEN BELOW CRITICAL LEVELS THIS MORNING. RED FLAG WARNINGS
HAVE BEEN POSTED FOR MUCH OF THE STATE. SEE THE FIRE WEATHER
DISCUSSION FOR MORE DETAILS.

THE COLD FRONT IS EXPECTED TO MOVE ACROSS NORTHWEST UTAH THIS
EVENING AND ACROSS THE SALT LAKE VALLEY BETWEEN 03-05Z TONIGHT. THE
FRONT WILL CONTINUE ITS SOUTHEASTWARD PROGRESSION THROUGH THE NIGHT.
WINDS WILL SHIFT TO THE NORTHWEST BUT REMAIN STRONG THROUGH THE
OVERNIGHT HOURS BEHIND THE FRONT.

INCREASED CLOUD COVER DUE TO SUBSTANTIAL CIRRUS SHIELD APPARENT ON
VISIBLE SATELLITE THIS MORNING. NO OTHER UPDATES NEEDED AT THIS
TIME.

&&

.AVIATION...STRONG SOUTHERLY WINDS HAVE ALREADY DEVELOPED ACROSS THE
KSLC TERMINAL. THESE WINDS WILL CONTINUE TO INCREASE THROUGH THE
AFTERNOON AND EVENING WITH GUSTS TO 50 MPH POSSIBLE AFTER 100 PM
THIS AFTERNOON. THE COLD FRONT IS EXPECTED TO MOVE ACROSS THE
TERMINAL BETWEEN 03-05Z. THERE IS A 20 PERCENT CHANCE THE COLD FRONT
WILL MOVE THROUGH EARLIER...BETWEEN 01-03Z. ONCE THE FRONT MOVES
THROUGH...WINDS WILL SHIFT TO THE NORTHWEST AND REMAIN STRONG
THROUGH MIDNIGHT TONIGHT AND THEN BEGIN TO DECREASE.

&&

.FIRE WEATHER...EXPECT WIDESPREAD RED FLAG CONDITIONS TODAY. SOME
QUESTION OF WIND SPEEDS ACROSS NORTH CENTRAL UTAH EARLY THIS
AFTERNOON...BUT THERE SHOULD BE ENOUGH TIME DURING MAX HEATING AND
BEFORE FRONT PASSAGE TO REACH CRITERIA. ZONE 420 SHOULD SEE A DRY
COLD FRONT PASSAGE...HOWEVER HIGH BASED CONVECTION IS POSSIBLE WITH
THE FRONT.

AS THE FRONT PUSHES SOUTHWARD THROUGH THE STATE...COOLER AIR AND
PRECIP WILL BRING RELIEF TO THE FIRE WEATHER SITUATION.
HOWEVER...WITH THE FRONT FORECAST TO STALL JUST NORTH OF THE ARIZONA
BORDER...RED FLAG CONDITION MAY ONCE AGAIN BE MET ON WEDNESDAY. A
WATCH IN IN EFFECT FOR EXTREME SOUTHERN ZONES.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...RED FLAG WARNING THROUGH TUESDAY EVENING FOR FIRE WEATHER
     ZONES UTZ434-435-437-439>441.
  ...RED FLAG WARNING TUESDAY AFTERNOON THROUGH TUESDAY EVENING
     FOR FIRE WEATHER ZONES UTZ420-423-424-425>427-433-436-438.
  ...HIGH WIND WARNING UTZ005 FROM NOON TODAY TO 6 AM WEDNESDAY.
  ...HIGH WIND WARNING UTZ003-015-016-019 FROM NOON TODAY THROUGH
     MIDNIGHT THIS EVENING.
  ...WIND ADVISORY UTZ004-006>011-014-517-518 FROM NOON TODAY
     THROUGH 3 AM WEDNESDAY.
  ...WIND ADVISORY UTZ020-021 FROM NOON TODAY THROUGH 6 AM
     WEDNESDAY.
  ...WIND ADVISORY UTZ002 FROM NOON TODAY THROUGH MIDNIGHT TONIGHT.
  ...FIRE WEATHER WATCH WEDNESDAY AFTERNOON THROUGH WEDNESDAY
     EVENING FOR FIRE WEATHER ZONES UTZ439>441.
WY...NONE.

&&

C.SMITH/SEAMAN

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

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
307 PM MDT TUE JUN 5 2007

UTZ001>016-019>021-517-518-WYZ021-062030-
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-SALT LAKE AND TOOELE
VALLEYS-SOUTHERN WASATCH FRONT-GREAT SALT LAKE DESERT AND MOUNTAINS-
WASATCH MOUNTAIN VALLEYS-WASATCH MOUNTAINS I-80 NORTH-WASATCH
MOUNTAINS SOUTH OF I-80-WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK
CLIFFS-WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-UTAHS DIXIE
AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-GLEN CANYON RECREATION
AREA/LAKE POWELL-CENTRAL MOUNTAINS-SOUTHERN MOUNTAINS-SOUTHWEST
WYOMING-
307 PM MDT TUE JUN 5 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF
UTAH AND EXTREME SOUTHWEST WYOMING.

.DAY ONE...TODAY AND TONIGHT

A STRONG COLD FRONT WILL MOVE THROUGH NORTHERN UTAH THIS EVENING.
STRONG SOUTH WINDS WILL OCCUR AHEAD OF THE FRONT AND THEN SHIFT TO
THE WEST TO NORTHWEST BEHIND THE FRONT WHILE REMAINING STRONG THIS
EVENING AND OVERNIGHT. THE FRONT WILL CONTINUE THROUGH THE REST
OF THE REGION LATE THIS EVENING AND OVERNIGHT. REFER TO LATEST
WIND PRODUCTS FOR DETAILS.

THE COMBINATION OF WIND AND VERY LOW HUMIDITY IS ALSO CREATING
EXTREME FIRE WEATHER DANGER. REFER TO FIRE WEATHER PRODUCTS
FOR DETAILS.

ISOLATED THUNDERSTORMS WILL FORM ACROSS NORTHERN UTAH THIS EVENING
AND THEN PRECIPITATION WILL INCREASE OVERNIGHT. SIGNIFICANT PRECIPITATION
IS EXPECTED. SNOW LEVELS WILL LOWER LATE TONIGHT WITH THE ONSET
OF STEADY PRECIPITATION IN NORTHERN UTAH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

UNSEASONABLY COLD AND WET CONDITIONS WILL EXIST ACROSS THE
NORTHERN TWO-THIRDS OF UTAH AND SOUTHWEST WYOMING ON WEDNESDAY.
WIDESPREAD VALLEY RAIN AND MOUNTAIN SNOW ARE EXPECTED ON
WEDNESDAY. REFER TO WINTER WEATHER PRODUCTS FOR DETAILS.

THE UTAH AND ARIZONA BORDER WILL REMAIN WINDY AND MOSTLY DRY
ON WEDNESDAY CONTINUING HAZARDOUS FIRE WEATHER CONDITIONS. REFER
TO FIRE WEATHER PRODUCTS FOR DETAILS.

SCATTERED SHOWERS AND COOL TEMPERATURES WILL CONTINUE ACROSS THE
NORTHERN AND CENTRAL PORTIONS OF UTAH AND SOUTHWEST WYOMING ON
THURSDAY. DRIER WEATHER WILL OCCUR ON FRIDAY AND CONTINUE INTO THE
WEEKEND WITH A WARMING TREND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

TARDY

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