FNUS75 KRIW 191211
FWSRIW

SPOT FORECAST FOR LOST LAKE...USFS SHF
NATIONAL WEATHER SERVICE RIVERTON WY
611 AM MDT MON AUG 19 2013

FORECAST IS BASED ON REQUEST TIME OF 2103 MDT ON AUGUST 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

VERY WARM AND DRY CONDITIONS WILL CONTINUE ACROSS THE WILDFIRE
AREA TODAY. CONDITIONS SHOULD BE SIMILAR TO YESTERDAY...EXCEPT VARIABLE
HIGH CLOUDINESS IS EXPECTED IN THE AFTERNOON.

MONSOONAL MOISTURE BEGINS TO SURGE NORTHWARD TUESDAY. THIS WILL RESULT
IN ISOLATED THUNDERSTORMS ACROSS NORTHWEST WYOMING TUESDAY...AS WELL
AS A SLIGHT INCREASE IN RELATIVE HUMIDITY. A BETTER SHOT AT THUNDERSTORMS
WILL OCCUR WEDNESDAY.

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

FORECASTER...MURRELL

.TODAY...
SKY/WEATHER.........SUNNY (5 PERCENT) IN THE MORNING WITH VARIABLE
                    HIGH CLOUDINESS (40 PERCENT) IN THE AFTERNOON.
MAX TEMPERATURE.....80.
MIN HUMIDITY........15 PERCENT.
20 FOOT WINDS.......LIGHT AND VARIABLE 2-4 MPH...BECOMING WEST TO
                    SOUTHWEST 5-10 MPH BY AROUND NOON. GUSTS 15 TO
                    20 MPH IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST AROUND 5 MPH...BECOMING WEST 10-15 MPH
                    BY AROUND NOON.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8900 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH...BECOMING WEST 15-20 MPH
                    BY AFTERNOON.
SMOKE DISPERSAL.....VERY GOOD.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........52-55 PERCENT.
20 FOOT WINDS.......WEST SOUTHWEST 4-8 MPH...BECOMING LIGHT AND
                    VARIABLE 2-4 MPH BY 10 PM.
RIDGE TOP WINDS.....WEST TO SOUTHWEST 5-10 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......DECREASING TO 800 FT AGL.
TRANSPORT WINDS.....WEST SOUTHWEST 5-10 MPH.
SMOKE DISPERSAL.....DECREASING TO POOR.

.TUESDAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (50-60 PERCENT). ISOLATED SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....78.
MIN HUMIDITY........22 PERCENT.
20 FOOT WINDS.......WEST SOUTHWEST 4-8 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGE TOP WINDS.....WEST SOUTHWEST 5-10 MPH.
LAL.................1 UNTIL NOON...THEN 2.
CHC OF WETTING RAIN.5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......8800 FT AGL.
TRANSPORT WINDS.....WEST SOUTHWEST 10-15 MPH.
SMOKE DISPERSAL.....GOOD.

.FORECAST DAYS 3 THROUGH 5...

.TUESDAY NIGHT...PARTLY CLOUDY WITH ISOLATED SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. WINDS GENERALLY LESS THAN
10 MPH.

.WEDNESDAY...MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
HIGHS IN THE UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.

.THURSDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WINDS
GENERALLY LESS THAN 10 MPH.

.FRIDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 70S.
SOUTHWEST WINDS AROUND 10 MPH.

$$

FORECASTER...MURRELL
REQUESTED BY...TIM HAAS
REASON FOR REQUEST...WILDFIRE
.TAG 20130818.LOSTL.01/RIW