FNUS75 KRIW 251007
FWSRIW

SPOT FORECAST FOR NORTH LITTLE MT5...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
407 AM MDT THU APR 25 2013

FORECAST IS BASED ON IGNITION TIME OF 1400 MDT ON APRIL 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A WARMING TREND THROUGH SATURDAY WITH DRY CONDITIONS. WINDS SHOULD
BE MAINLY TERRAIN DRIVEN...OR SOUTH TO SOUTHWEST AT THE FIRE SITE
THROUGH SATURDAY. A WEAK COLD FRONT SHOULD PUSH ACROSS NORTHERN
WYOMING LATE SATURDAY NIGHT AND SUNDAY MORNING WITH A SLIGHT
CHANCE FOR SOME RAIN SHOWER ACTIVITY. AS THE PRESSURE GRADIENT
TIGHTENS AHEAD OF THIS SYSTEM...WINDS ON SATURDAY COULD BE
SOMEWHAT BREEZY SATURDAY AFTERNOON. HOWEVER A STRONGER COLD FRONT
IS EXPECTED TO PUSH ACROSS THE AREA MONDAY NIGHT...WITH A
BETTER CHANCE OF WINDY CONDITIONS AHEAD OF THIS FRONT MONDAY.

...THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS...
...HAINES INDEX IS HIGH LEVEL HAINES BOTH DAY AND NIGHT...

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........VARIABLE MID AND HIGH CLOUDS (30-60 PERCENT).
MAX TEMPERATURE.....56.
MIN HUMIDITY........22 PERCENT.
20 FOOT WINDS.......SOUTH 4-8 MPH...BECOMING SOUTHWEST 5-10 MPH
                    BETWEEN NOON AND 2 PM. GUSTS TO 15 MPH IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....SOUTH SOUTHWEST 10-15 MPH...BECOMING SOUTHWEST
                    IN THE EARLY AFTERNOON.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......1500 FT AGL INCREASING TO 6800 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH...BECOMING WEST AROUND
                    20 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO FAIR BY NOON...AND THEN GOOD
                    BY 2 PM.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....35.
MAX HUMIDITY........60 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTH SOUTHWEST AROUND 10 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 900 FT AGL BY 9 PM.
TRANSPORT WINDS.....SOUTH SOUTHWEST AROUND 10 MPH.
SMOKE DISPERSAL.....POOR BY 9 PM.

.FRIDAY...
SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....65.
MIN HUMIDITY........18 PERCENT.
20 FOOT WINDS.......SOUTH TO SOUTHWEST 4-8 MPH.
RIDGE TOP WINDS.....SOUTH SOUTHWEST AROUND 10 MPH.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......6000-7000 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 10-15 MPH...INCREASING TO AROUND
                    15 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR INCREASING TO FAIR BY NOON...THEN GOOD
                    AGAIN BY 2 PM.

.FORECAST DAYS 3 THROUGH 5...

.FRIDAY NIGHT...PARTLY CLOUDY. LOWS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.

.SATURDAY...PARTLY CLOUDY. HIGHS IN THE LOWER 70S. SOUTH TO
SOUTHWEST WINDS AROUND 10 MPH. GUSTS TO 20 MPH.

.SUNDAY...MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS AROUND 40.
HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.

.MONDAY...MOSTLY CLOUDY...BREEZY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S.
SOUTHWEST TO WEST 10-20 MPH. GUSTS TO 30 MPH IN THE AFTERNOON.

$$

FORECASTER...MURRELL
REQUESTED BY...MONONI
REASON FOR REQUEST...PRESCRIBED
.TAG 20130425.NORTH.01/RIW