977 FNUS55 KSLC 121434 RRA FWFSLC FIRE WEATHER PLANNING FORECAST FOR UTAH NATIONAL WEATHER SERVICE SALT LAKE CITY UT 301 AM MDT WED SEP 12 2012 ...DRIER AIR MOVING IN... .BROADCAST DISCUSSION...DRIER AIR OVER NORTHERN UTAH WILL PUSH INTO SOUTHERN UTAH THIS AFTERNOON AS A COLD FRONT EXITS THE DISTRICT. HIGH PRESSURE WILL BUILD BEGINNING THURSDAY. SOME MOISTURE IS EXPECTED TO RETURN OVER THE WEEKEND. .DISCUSSION...THE COLD FRONT OVER SOUTHERN UTAH WILL MOVE OUT OF THE DISTRICT THIS AFTERNOON AS A PACIFIC NORTHWEST TROUGH MOVES INTO MONTANA AND WYOMING. THIS WILL PUSH DRIER AIR OVER NORTHERN UTAH INTO THE ENTIRE STATE BY THIS EVENING. SOME SHOWERS AND THUNDERSTORMS OVER SOUTHERN UTAH WILL DIMINISH AS THE DRY AIR MOVES IN...BUT SOME MAY LINGER THROUGH LATE AFTERNOON. HIGH PRESSURE WILL BUILD THURSDAY AND FRIDAY. FORECAST MODELS SUGGEST THAT SOME MONSOONAL MOISTURE WILL RETURN OVER THE WEEKEND. ***THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS*** ***ALL WINDS ARE 20 FOOT...10-MINUTE AVERAGES*** UTZ478>480-130045- FORECAST AREA 1...NORTHERN UTAH (NORTHERN UTAH IFC AREA)- ZONE 478 SALT LAKE DESERT...ZONE 479 WASATCH MOUNTAINS...ZONE 480 UINTA MOUNTAINS- 301 AM MDT WED SEP 12 2012 .TODAY... SKY/WEATHER.........IN THE VALLEYS...MOSTLY SUNNY (5-15 PCT CLOUD COVER). IN THE MOUNTAINS...MOSTLY SUNNY (20-30 PCT CLOUD COVER). MAX TEMPERATURE.....NEAR 5000 FEET...69-78. NEAR 8000 FEET...59-68. MIN HUMIDITY........NEAR 5000 FEET...10-20 PERCENT. NEAR 8000 FEET...16-26 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE BECOMING NORTHWEST 10-20 MPH IN THE AFTERNOON. LAL.................1. CWR.................0 PERCENT. HAINES INDEX........5 ..MODERATE. .TONIGHT... SKY/WEATHER.........CLEAR (0-5 PCT CLOUD COVER). MIN TEMPERATURE.....NEAR 5000 FEET...46-56. NEAR 8000 FEET...32-42. MAX HUMIDITY........NEAR 5000 FEET...40-50 PERCENT. NEAR 8000 FEET...42-52 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH BECOMING EAST AROUND 15 MPH AFTER MIDNIGHT. RIDGETOPS......LIGHT AND VARIABLE BECOMING EAST 10-20 MPH AFTER MIDNIGHT. LAL.................1. CWR.................0 PERCENT. HAINES INDEX........5 ..MODERATE. .THURSDAY... SKY/WEATHER.........SUNNY (0-5 PCT CLOUD COVER). MAX TEMPERATURE.....NEAR 5000 FEET...74-82. NEAR 8000 FEET...64-74. MIN HUMIDITY........NEAR 5000 FEET...10-20 PERCENT. NEAR 8000 FEET...15-25 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................1. CWR.................0 PERCENT. HAINES INDEX........5 ..MODERATE. = $$ UTZ492>494-130045- FORECAST AREA 2...WEST CENTRAL UTAH (RICHFIELD IFC AREA)- ZONE 492 CENTRAL UTAH WEST DESERT...ZONE 493 CENTRAL UTAH MOUNTAINS...ZONE 494 CANYONLANDS- 301 AM MDT WED SEP 12 2012 .TODAY... SKY/WEATHER.........IN THE VALLEYS...PARTLY CLOUDY (40-50 PCT CLOUD COVER) UNTIL 1200...THEN MOSTLY SUNNY (15-25 PCT CLOUD COVER)...WIDELY SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 1200. ISOLATED SHOWERS AND THUNDERSTORMS AFTER 1200. IN THE MOUNTAINS...PARTLY CLOUDY (50-60 PCT CLOUD COVER) UNTIL 1200...THEN MOSTLY SUNNY (25-35 PCT CLOUD COVER)...WIDELY SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...69-79. NEAR 8000 FEET...61-71. MIN HUMIDITY........NEAR 5000 FEET...9-18 PERCENT. NEAR 8000 FEET...22-32 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE BECOMING NORTH 10-20 MPH IN THE AFTERNOON. LAL.................3. CWR.................10 PERCENT. HAINES INDEX........5 ..MODERATE. .TONIGHT... SKY/WEATHER.........CLEAR (0-10 PCT CLOUD COVER). MIN TEMPERATURE.....NEAR 5000 FEET...42-52. NEAR 8000 FEET...38-48. MAX HUMIDITY........NEAR 5000 FEET...41-51 PERCENT. NEAR 8000 FEET...50-60 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......NORTH 10-20 MPH BECOMING LIGHT AND VARIABLE AFTER MIDNIGHT. LAL.................1. CWR.................0 PERCENT. HAINES INDEX........5 ..MODERATE. .THURSDAY... SKY/WEATHER.........SUNNY (0-5 PCT CLOUD COVER). MAX TEMPERATURE.....NEAR 5000 FEET...73-83. NEAR 8000 FEET...64-74. MIN HUMIDITY........NEAR 5000 FEET...11-17 PERCENT. NEAR 8000 FEET...15-25 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................1. CWR.................0 PERCENT. HAINES INDEX........5 ..MODERATE. = $$ UTZ495>498-130045- FORECAST AREA 3...SOUTHWEST UTAH (CEDAR CITY IFC AREA)- ZONE 495 COLOR COUNTRY WEST DESERT...ZONE 496 COLOR COUNTRY MOUNTAINS...ZONE 497 MOJAVE DESERT...ZONE 498 GRAND STAIRCASE- 301 AM MDT WED SEP 12 2012 .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PCT CLOUD COVER) UNTIL 1200...THEN PARTLY CLOUDY (35-45 PCT CLOUD COVER). IN THE VALLEYS...SCATTERED SHOWERS AND THUNDERSTORMS UNTIL 1200...THEN ISOLATED SHOWERS AND THUNDERSTORMS. IN THE MOUNTAINS...SCATTERED SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....NEAR 3000 FEET...78-88. NEAR 5000 FEET...74-84. NEAR 8000 FEET...62-72. MIN HUMIDITY........NEAR 3000 FEET...21-27 PERCENT. NEAR 5000 FEET...21-31 PERCENT. NEAR 8000 FEET...34-44 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................4. CWR.................10 PERCENT IN THE VALLEYS AND 30 PERCENT IN THE MOUNTAINS. HAINES INDEX........4 ..LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PCT CLOUD COVER). IN THE VALLEYS...ISOLATED SHOWERS AND THUNDERSTORMS UNTIL 2400. IN THE MOUNTAINS...ISOLATED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....NEAR 3000 FEET...61-67. NEAR 5000 FEET...47-57. NEAR 8000 FEET...37-47. MAX HUMIDITY........NEAR 3000 FEET...53-63 PERCENT. NEAR 5000 FEET...65-75 PERCENT. NEAR 8000 FEET...72-82 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...NORTH 15-20 MPH. RIDGETOPS......NORTH 15-25 MPH. LAL.................2. CWR.................0 PERCENT. HAINES INDEX........5 ..MODERATE. .THURSDAY... SKY/WEATHER.........SUNNY (0-5 PCT CLOUD COVER). MAX TEMPERATURE.....NEAR 3000 FEET...90-96. NEAR 5000 FEET...78-88. NEAR 8000 FEET...66-76. MIN HUMIDITY........NEAR 3000 FEET...12-22 PERCENT. NEAR 5000 FEET...13-22 PERCENT. NEAR 8000 FEET...22-32 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......LIGHT AND VARIABLE. LAL.................1. CWR.................0 PERCENT. HAINES INDEX........5 ..MODERATE. = $$ UTZ488>491-130045- FORECAST AREA 4...SOUTHEAST AND EAST CENTRAL UTAH (MOAB IFC AREA)- ZONE 488 MANTI LA SAL NATIONAL FOREST...ZONE 489 SAN RAFAEL SWELL...ZONE 490 COLORADO RIVER BASIN...ZONE 491 SOUTHEAST UTAH- 301 AM MDT WED SEP 12 2012 .TODAY... SKY/WEATHER.........PARTLY CLOUDY (55-65 PCT CLOUD COVER). IN THE VALLEYS...SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS UNTIL 1200...THEN ISOLATED SHOWERS AND THUNDERSTORMS. IN THE MOUNTAINS...SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS. MAX TEMPERATURE.....NEAR 5000 FEET...73-83. NEAR 8000 FEET...60-70. MIN HUMIDITY........NEAR 5000 FEET...27-37 PERCENT. NEAR 8000 FEET...41-51 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH BECOMING NORTH AROUND 15 MPH IN THE AFTERNOON. RIDGETOPS......LIGHT AND VARIABLE BECOMING NORTHWEST 10-20 MPH IN THE AFTERNOON. LAL.................4. CWR.................10 PERCENT. HAINES INDEX........3 ..VERY LOW. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PCT CLOUD COVER). IN THE VALLEYS...ISOLATED THUNDERSTORMS UNTIL 2400. ISOLATED RAIN SHOWERS. IN THE MOUNTAINS...ISOLATED SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....NEAR 5000 FEET...49-59. NEAR 8000 FEET...39-49. MAX HUMIDITY........NEAR 5000 FEET...56-66 PERCENT. NEAR 8000 FEET...56-66 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...NORTH AROUND 15 MPH IN THE EVENING BECOMING DOWNSLOPE/DOWNVALLEY 5-10 MPH. RIDGETOPS......NORTH 10-20 MPH DECREASING TO EAST AFTER MIDNIGHT. LAL.................2. CWR.................0 PERCENT. HAINES INDEX........4 ..LOW. .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (15-25 PCT CLOUD COVER). IN THE MOUNTAINS...ISOLATED THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....NEAR 5000 FEET...73-83. NEAR 8000 FEET...63-73. MIN HUMIDITY........NEAR 5000 FEET...16-26 PERCENT. NEAR 8000 FEET...21-31 PERCENT. 20-FOOT WINDS.......SLOPE/VALLEY...UPSLOPE/UPVALLEY 5-10 MPH. RIDGETOPS......EAST 10-20 MPH. LAL.................1 IN THE VALLEYS AND 2 IN THE MOUNTAINS. CWR.................0 PERCENT. HAINES INDEX........4 ..LOW. = $$ .FORECAST DAYS 3 THROUGH 7... .FRIDAY...CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND AROUND 70 IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH. .SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE MID 80S IN THE VALLEYS AND IN THE LOWER 70S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH. .SUNDAY...MOSTLY CLEAR. ISOLATED SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 50S IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE LOWER 80S IN THE VALLEYS AND IN THE UPPER 60S IN THE MOUNTAINS. WINDS GENERALLY LESS THAN 15 MPH. .MONDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S IN THE VALLEYS AND IN THE MID 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. .TUESDAY...MOSTLY CLEAR. LOWS AROUND 50 IN THE VALLEYS AND IN THE LOWER 40S IN THE MOUNTAINS. HIGHS IN THE UPPER 70S IN THE VALLEYS AND IN THE MID 60S IN THE MOUNTAINS. .8-14 DAY OUTLOOK FOR WEDNESDAY SEPTEMBER 19 TO TUESDAY SEPTEMBER 25 TEMPERATURE... ABOVE NORMAL PRECIPITATION... BELOW NORMAL = $$