FIRE WEATHER PLANNING FORECAST FOR UTAH NATIONAL WEATHER SERVICE SALT LAKE CITY UT

FNUS55 KSLC 022058 FWFSLC FIRE WEATHER PLANNING FORECAST FOR UTAH NATIONAL WEATHER SERVICE SALT LAKE CITY UT 258 PM MDT THU JUL 2 2009 ...MOISTURE PEAKS FRIDAY THEN GRADUAL DRYING FOR THE WEEKEND... .BROADCAST DISCUSSION...HIGH PRESSURE WILL SLOWLY SHIFT TO THE EAST THROUGH FRIDAY...ALLOWING MOISTURE TO INCREASE ACROSS THE AREA. A DRIER AIRMASS WILL GRADUALLY SPREAD BACK INTO THE AREA FROM THE WEST OVER THE WEEKEND. BREEZY AND DRY EARLY NEXT WEEK. .DISCUSSION...THE COMBINATION OF A RIDGE OF HIGH PRESSURE OVER NEW MEXICO AND A TROUGH OFF THE CALIFORNIA COAST WILL CONTINUE TO SPREAD DEEP MOISTURE NORTHWARD ACROSS THE REGION THROUGH FRIDAY. AS THE CALIFORNIA TROUGH WEAKENS AND MOVES INLAND THE FLOW ALOFT WILL SHIFT TO WESTERLY WHICH WILL BRING MUCH DRIER AIR TO THE REGION. HOWEVER...THIS TRANSITION TO DRIER CONDITIONS WILL TAKE THREE DAYS. BY MONDAY DRY SOUTHWEST WINDS WILL PREVAIL ACROSS THE INTERMOUNTAIN REGION AND BECOME QUITE BREEZY ON TUESDAY AND WEDNESDAY...ESPECIALLY OVER WESTERN DESERTS...AS A LOBE OF ENERGY LIFTS NORTHEAST OUT OF THE WEST COAST TROUGH. IN THE MEANTIME...THE MOIST AIRMASS WILL KEEP RELATIVE HUMIDITIES VERY HIGH THROUGH FRIDAY BEFORE A GRADUAL DECREASE. ***THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS*** ***ALL WINDS ARE 20 FOOT...10-MINUTE AVERAGES*** UTZ420>427-031245- FORECAST AREA 1...NORTHERN UTAH (NORTHERN UTAH IFC AREA)- ZONE 420 GREAT SALT LAKE DESERT AND MOUNTAINS...ZONE 421 CACHE VALLEY...ZONE 422 NORTHERN WASATCH FRONT...ZONE 423 SALT LAKE AND TOOELE VALLEYS...ZONE 424 SOUTHERN WASATCH FRONT...ZONE 425 WASATCH MOUNTAIN VALLEYS...ZONE 426 WASATCH MOUNTAINS NORTH OF I_80...ZONE 427 WASATCH MOUNTAINS SOUTH OF I_80 AND NORTHERN AND WESTERN SLOPES OF THE UINTA MOUNTAINS- 258 PM MDT THU JUL 2 2009 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (85-100 PCT CLOUD COVER). SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 2400. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 2400. MIN TEMPERATURE.....NEAR 5000 FEET...59-69. NEAR 8000 FEET...43-53. MAX HUMIDITY........NEAR 5000 FEET...75-85 PERCENT. NEAR 8000 FEET...83-93 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......SOUTHWEST 5-15 MPH BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT. LAL.................4 IN THE EVENING THEN 2. CWR.................30 PERCENT. HAINES INDEX........3 ..VERY LOW. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY (50-60 PCT CLOUD COVER). ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...80-88. NEAR 8000 FEET...62-70. MIN HUMIDITY........NEAR 5000 FEET...24-34 PERCENT. NEAR 8000 FEET...38-48 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4. CWR.................20 PERCENT. HAINES INDEX........4 ..LOW. .FRIDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (50-60 PCT CLOUD COVER). WIDELY SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 2400...THEN ISOLATED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....NEAR 5000 FEET...59-68. NEAR 8000 FEET...43-53. MAX HUMIDITY........NEAR 5000 FEET...63-73 PERCENT. NEAR 8000 FEET...80-90 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......WEST 10-20 MPH SHIFTING TO LIGHT AND VARIABLE AFTER MIDNIGHT. LAL.................3 IN THE EVENING THEN 2. CWR.................10 PERCENT. HAINES INDEX........4 ..LOW. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY (50-60 PCT CLOUD COVER). ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...82-90. NEAR 8000 FEET...65-72. MIN HUMIDITY........NEAR 5000 FEET...21-29 PERCENT. NEAR 8000 FEET...31-40 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4. CWR.................10 PERCENT. HAINES INDEX........5 ..MODERATE. = $$ UTZ433-434-436-438-031245- FORECAST AREA 2...CENTRAL UTAH (RICHFIELD IFC AREA)- ZONE 433 SANPETE AND SEVIER VALLEYS...ZONE 434 WEST CENTRAL DESERTS AND MOUNTAINS...ZONE 436 CENTRAL UTAH MOUNTAINS...ZONE 438 HENRY MOUNTAINS- 258 PM MDT THU JUL 2 2009 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (85-95 PCT CLOUD COVER). WIDELY SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS MIN TEMPERATURE.....NEAR 5000 FEET...56-66. NEAR 8000 FEET...49-59. MAX HUMIDITY........NEAR 5000 FEET...78-90 PERCENT. NEAR 8000 FEET...78-90 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................3. CWR.................20 PERCENT. HAINES INDEX........3 ..VERY LOW. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY (50-60 PCT CLOUD COVER). ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN WIDELY SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...82-92. NEAR 8000 FEET...67-77. MIN HUMIDITY........NEAR 5000 FEET...26-36 PERCENT. NEAR 8000 FEET...36-48 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................3. CWR.................0 PERCENT. HAINES INDEX........4 ..LOW. .FRIDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (45-55 PCT CLOUD COVER). SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 2400...THEN ISOLATED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....NEAR 5000 FEET...57-67. NEAR 8000 FEET...49-59. MAX HUMIDITY........NEAR 5000 FEET...59-69 PERCENT. NEAR 8000 FEET...63-73 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH RIDGETOPS......LIGHT AND VARIABLE. LAL.................3. CWR.................0 PERCENT. HAINES INDEX........4 ..LOW. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY (40-50 PCT CLOUD COVER). ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN WIDELY SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...83-93. NEAR 8000 FEET...68-78. MIN HUMIDITY........NEAR 5000 FEET...19-29 PERCENT. NEAR 8000 FEET...30-40 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................3. CWR.................0 PERCENT. HAINES INDEX........4 ..LOW. = $$ UTZ435-437-439>441-031245- FORECAST AREA 3...SOUTHWEST UTAH (CEDAR CITY IFC AREA)- ZONE 435 SOUTHWEST DESERTS AND MOUNTAINS...ZONE 437 SOUTHWEST AND SOUTH CENTRAL MOUNTAINS...ZONE 439 UTAHS DIXIE AND ZION CANYON...ZONE 440 SOUTH CENTRAL UTAH...ZONE 441 GLEN CANYON RECREATION AREA/LAKE POWELL- 258 PM MDT THU JUL 2 2009 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (60-70 PCT CLOUD COVER). SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 2400. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 2400. MIN TEMPERATURE.....NEAR 3000 FEET...76-82. NEAR 5000 FEET...59-69. NEAR 8000 FEET...47-57. MAX HUMIDITY........NEAR 3000 FEET...37-45 PERCENT. NEAR 5000 FEET...67-77 PERCENT. NEAR 8000 FEET...77-87 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................3. CWR.................10 PERCENT IN THE VALLEYS AND 30 PERCENT IN THE MOUNTAINS. HAINES INDEX........3 ..VERY LOW. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY (40-50 PCT CLOUD COVER). ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN WIDELY SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 3000 FEET...94-100. NEAR 5000 FEET...85-95. NEAR 8000 FEET...70-80. MIN HUMIDITY........NEAR 3000 FEET...19-25 PERCENT. NEAR 5000 FEET...23-33 PERCENT. NEAR 8000 FEET...41-51 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......SOUTHWEST 10-20 MPH. LAL.................3. CWR.................20 PERCENT. HAINES INDEX........4 ..LOW. .FRIDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PCT CLOUD COVER). SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 2400...THEN ISOLATED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....NEAR 3000 FEET...76-82. NEAR 5000 FEET...60-70. NEAR 8000 FEET...46-56. MAX HUMIDITY........NEAR 3000 FEET...29-39 PERCENT. NEAR 5000 FEET...51-61 PERCENT. NEAR 8000 FEET...68-78 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4. CWR.................0 PERCENT. HAINES INDEX........3 ..VERY LOW. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PCT CLOUD COVER) UNTIL 1200...THEN PARTLY CLOUDY (45-55 PCT CLOUD COVER). ISOLATED SHOWERS AND THUNDERSTORMS IN THE VALLEYS AND SCATTERED SHOWERS AND THUNDERSTORMS IN THE MOUNTAINS. MAX TEMPERATURE.....NEAR 3000 FEET...AROUND 99. NEAR 5000 FEET...85-95. NEAR 8000 FEET...71-81. MIN HUMIDITY........NEAR 3000 FEET...17 PERCENT. NEAR 5000 FEET...18-27 PERCENT. NEAR 8000 FEET...31-41 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4. CWR.................0 PERCENT. HAINES INDEX........3 ..VERY LOW. = $$ UTZ431-432-445>449-031245- FORECAST AREA 4...SOUTHEAST AND EAST CENTRAL UTAH (MOAB IFC AREA)- ZONE 431 EASTERN SLOPE WASATCH PLATEAU AND CASTLE VALLEY...ZONE 432 SOUTHWEST TAVAPUTS PLATEAU/BOOK CLIFFS AND THE SAN RAFAEL SWELL...ZONE 445 GRAND FLAT...ROAN AND BOOK CLIFFS...ZONE 446 ARCHES NATIONAL PARK AND SURROUNDING AREAS...ZONE 447 CANYONLANDS NATIONAL PARK AND BRIDGES NATIONAL MONUMENT...ZONE 448 LA SAL AND ABAJO MOUNTAINS...ZONE 449 SOUTHERN SAN JUAN COUNTY- 258 PM MDT THU JUL 2 2009 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (60-70 PCT CLOUD COVER). WIDELY SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 2400. AFTER 2400 ISOLATED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....NEAR 5000 FEET...58-68. NEAR 8000 FEET...51-61. MAX HUMIDITY........NEAR 5000 FEET...67-77 PERCENT. NEAR 8000 FEET...70-80 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................3 UNTIL 2400 THEN 2. CWR.................20 PERCENT. HAINES INDEX........3 ..VERY LOW. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY (50-60 PCT CLOUD COVER). IN THE VALLEYS...ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN SCATTERED SHOWERS AND THUNDERSTORMS. IN THE MOUNTAINS...SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...82-92. NEAR 8000 FEET...70-80. MIN HUMIDITY........NEAR 5000 FEET...20-30 PERCENT. NEAR 8000 FEET...30-40 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4 IN THE VALLEYS AND 5 IN THE MOUNTAINS. CWR.................10 PERCENT. HAINES INDEX........3 ..VERY LOW. .FRIDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (50-60 PCT CLOUD COVER). IN THE VALLEYS...SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 2400...THEN ISOLATED SHOWERS AND THUNDERSTORMS. IN THE MOUNTAINS...SCATTERED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....NEAR 5000 FEET...59-69. NEAR 8000 FEET...51-61. MAX HUMIDITY........NEAR 5000 FEET...66-76 PERCENT. NEAR 8000 FEET...67-77 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING SOUTHEAST AROUND 15 MPH AFTER MIDNIGHT. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4 IN THE VALLEYS AND 5 IN THE MOUNTAINS. CWR.................10 PERCENT. HAINES INDEX........3 ..VERY LOW. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY (45-55 PCT CLOUD COVER). IN THE VALLEYS...ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN SCATTERED SHOWERS AND THUNDERSTORMS. IN THE MOUNTAINS...SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...82-92. NEAR 8000 FEET...70-80. MIN HUMIDITY........NEAR 5000 FEET...19-29 PERCENT. NEAR 8000 FEET...28-38 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4. CWR.................10 PERCENT. HAINES INDEX........3 ..VERY LOW. = $$ .FORECAST DAYS 3 THROUGH 7... .SUNDAY...PARTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S IN THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. HIGHS AROUND 90 IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. SOUTHWEST WINDS AROUND 15 MPH. .MONDAY...MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S IN THE VALLEYS AND IN THE LOWER 50S IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. SOUTHWEST WINDS AROUND 20 MPH. .TUESDAY...BREEZY. MOSTLY CLEAR. LOWS AROUND 60 IN THE VALLEYS AND AROUND 50 IN THE MOUNTAINS. HIGHS IN THE LOWER 90S IN THE VALLEYS AND IN THE UPPER 70S IN THE MOUNTAINS. SOUTHWEST WINDS AROUND 25 MPH. .WEDNESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. .THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 50S IN THE VALLEYS AND IN THE UPPER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 80S IN THE VALLEYS AND IN THE MID 70S IN THE MOUNTAINS. .8-14 DAY OUTLOOK FOR FRIDAY JULY 10 TO THURSDAY JULY 16 TEMPERATURE... BELOW NORMAL PRECIPITATION... ABOVE NORMAL = $$