FNUS75 KRIW 301258 FWSRIW SPOT FORECAST FOR OTTER CREEK...BLM WOD NATIONAL WEATHER SERVICE RIVERTON WY 658 AM MDT SAT JUN 30 2012 FORECAST IS BASED ON REQUEST TIME OF 0625 MDT ON JUNE 30. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING... .DISCUSSION... A BROAD FLAT HIGH PRESSURE RIDGE EXTENDS ACROSS WESTERN WYOMING WITH A PACIFIC LOW PRESSURE TROUGH JUST OFF THE PACIFIC NORTHWEST COAST. THE PATTERN IS RATHER STAGNANT WITH LITTLE MOVEMENT OF THE MAIN UPPER LEVEL FEATURES. TODAY THE WINDS WILL BE LIGHTER WITH WARM TEMPERATURES AND LOW RELATIVE HUMIDITY. AS THE TROUGH MOVE SLOWLY EAST...THE RIDGE WILL BUILD AND THE SOUTHWEST FLOW ALOFT WILL INCREASE OVER WESTERN WYOMING ON SUNDAY WITH WARMER TEMPERATURES...VERY LOW RELATIVE HUMIDITY AND INCREASED GUSTY SURFACE WINDS. RED FLAG CONDITIONS ARE EXPECTED TO DEVELOP SUNDAY AFTERNOON. ...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS... ...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT... FORECASTER...C.BAKER .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....86-89. MIN HUMIDITY........10-13 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. RIDGE TOP WINDS.....SOUTH AROUND 10 MPH SHIFTING TO THE WEST IN THE LATE MORNING AND AFTERNOON. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......3600-4600 FT AGL INCREASING TO 9100-10100 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH AROUND 12 MPH SHIFTING TO THE WEST 9 TO 13 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....FAIR (41700-44000 KNOT-FT) THIS MORNING INCREASING TO VERY GOOD (120000 KNOT-FT) IN THE AFTERNOON. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....60-65. MAX HUMIDITY........45-50 PERCENT. 20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH BECOMING EAST 12 TO 15 MPH WITH GUSTS TO AROUND 24 MPH IN THE LATE EVENING AND OVERNIGHT. RIDGE TOP WINDS.....EAST AROUND 10 MPH INCREASING TO AROUND 25 MPH IN THE LATE EVENING AND OVERNIGHT. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......9600-10600 FT AGL DECREASING TO 3900-4900 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....EAST AROUND 13 MPH INCREASING TO 25 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....GOOD TO VERY GOOD (97800-102300 KNOT-FT). .SUNDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). MAX TEMPERATURE.....92-95. MIN HUMIDITY........5-8 PERCENT. 20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH IN THE MORNING BECOMING SOUTHWEST AT 15 WITH GUSTS TO 28 MPH BY NOON. RIDGE TOP WINDS.....EAST AROUND 15 MPH SHIFTING TO THE SOUTHWEST IN THE LATE MORNING AND AFTERNOON INCREASING TO 20 MPH WITH GUSTS TO 30 MPH. LAL.................1. CHC OF WETTING RAIN.ZERO PERCENT. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4400-5400 FT AGL INCREASING TO 12100-13100 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....EAST AROUND 17 MPH SHIFTING TO THE WEST 15 TO 20 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....GOOD (64200 KNOT-FT) INCREASING TO EXCELLENT (260000 KNOT-FT) IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .SUNDAY NIGHT...MOSTLY CLEAR. LOWS IN THE UPPER 50S. WINDS GENERALLY LESS THAN 10 MPH. .MONDAY...MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND ISOLATED DRY THUNDERSTORMS. LOWS AROUND 60. HIGHS IN THE UPPER 80S. WINDS GENERALLY LESS THAN 10 MPH. .TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS AROUND 90. WINDS GENERALLY LESS THAN 10 MPH. .INDEPENDENCE DAY...MOSTLY CLEAR. LOWS IN THE MID 60S. HIGHS AROUND 90. WINDS GENERALLY LESS THAN 10 MPH. $$ FORECASTER...C.BAKER REQUESTED BY...OTTER CREEK IC REASON FOR REQUEST...WILDFIRE .TAG 20120630.OTTER.01/RIW