FNUS75 KRIW 061652
FWSRIW

SPOT FORECAST FOR GAMBEL S BASIN...BLM WOD
NATIONAL WEATHER SERVICE RIVERTON WY
1052 AM MDT MON MAY 6 2013

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON MAY 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A SYSTEM PUSHING NORTH FROM COLORADO WILL COMBINE WITH A
DISTURBANCE MOVING INTO WESTERN WYOMING TO SEND ADDITIONAL
MOISTURE AND INSTABILITY OVER THE BURN SITE THIS AFTERNOON.
AFTERNOON SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE OVER THE BURN
SITE TODAY...WITH WEAK COVERAGE ANTICIPATED. THE MAIN THREAT WITH
ANY STORM ACTIVITY WILL BE GUSTY AND ERRATIC WIND...WITH GUSTS OF
30 TO 40 MPH POSSIBLE DURING THE AFTERNOON. THOUGH THUNDERSTORM
COVERAGE WILL DECREASE THROUGH THE EVENING...SOME LINGERING
MOISTURE MAY KEEP A FEW SHOWERS AROUND THE BURN SITE...THOUGH HAVE
BETTER INCREASE IN ACTIVITY TO THE WEST OF THE BURN SITE. THE
WARMING TREND IS EXPECTED TO CONTINUE THROUGH TUESDAY. GENERALLY
MILD CONDITIONS WITH AFTERNOON SHOWERS AND THUNDERSTORMS WILL
REMAIN POSSIBLE FOR THE NEXT FEW DAYS.

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

FORECASTER...BRANHAM

.TODAY...
SKY/WEATHER.........CLEAR (0-15 PERCENT) BECOMING PARTLY CLOUDY
                    (50-65 PERCENT) BY 1300. ISOLATED SHOWERS
                    AND THUNDERSTORMS AFTER 1300 BECOMING SCATTERED
                    BY 1500.
MAX TEMPERATURE.....58-61 BELOW 8000 FT...56-59 AT OR ABOVE 8000 FT.
MIN HUMIDITY........32-35 PERCENT BELOW 8000 FT...34-37 PERCENT ABOVE
                    8000 FT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....SOUTH 8 TO 12 MPH.
LAL.................1 UNTIL 1300...THEN 3.
CHC OF WETTING RAIN.7 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......INCREASING TO 6300-7300 FT AGL BY 1600.
TRANSPORT WINDS.....SOUTH 12 TO 16 MPH.
SMOKE DISPERSAL.....FAIR TO GOOD (59900-99300 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (45-55 PERCENT) AFTER 2300. ISOLATED
                    SHOWERS AND THUNDERSTORMS THROUGH 2200.
MIN TEMPERATURE.....38-41 BELOW 8000 FT...36-39 ABOVE 8000 FT.
MAX HUMIDITY........63-66 PERCENT BELOW 8000 FT...61-64 ABOVE 8000 FT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....LIGHT AND VARIABLE...GENERALLY UNDER 10 MPH.
LAL.................2 UNTIL 2200...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 3200-4200 FT AGL BY 0200.
TRANSPORT WINDS.....SOUTHEAST 7-10 MPH SHIFTING TO THE
                    WEST AFTER 2300.
SMOKE DISPERSAL.....POOR TO FAIR (20000-45600 KNOT-FT).

.TUESDAY...
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (70-80 PERCENT) BY 1100. SCATTERED
                    SHOWERS AND THUNDERSTORMS AFTER 1300.
MAX TEMPERATURE.....59-62 BELOW 8000 FT...57-60 ABOVE 8000 FT.
MIN HUMIDITY........29-32 PERCENT ALL LEVELS.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
RIDGE TOP WINDS.....NORTH 4-7 MPH SHIFTING TO THE EAST AND INCREASING
                    TO 8-12 MPH AFTER 1300.
LAL.................1 UNTIL 1300...THEN 3.
CHC OF WETTING RAIN.17 PERCENT.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3000-4000 FT AGL INCREASING TO 5300-6300 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 10 TO 12 MPH SHIFTING TO THE EAST 14 TO
                    17 MPH IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR TO GOOD (31400-66900 KNOT-FT).

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLOUDY. CHANCE OF SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING...THEN SCATTERED SHOWERS AFTER
MIDNIGHT. LOWS AROUND 40. WINDS GENERALLY LESS THAN 10 MPH.

.WEDNESDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WINDS GENERALLY LESS THAN 10 MPH.

.THURSDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WINDS GENERALLY LESS THAN 10 MPH.

.FRIDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS...SNOW SHOWERS AND
ISOLATED THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...BRANHAM
REQUESTED BY...KEVIN MARINO
REASON FOR REQUEST...PRESCRIBED
.TAG 20130507.GAMBE.01/RIW