FNUS75 KRIW 271722
FWSRIW

SPOT FORECAST FOR ALPINE LAKE...BIA WRA
NATIONAL WEATHER SERVICE RIVERTON WY
1122 AM MDT MON AUG 27 2012

FORECAST IS BASED ON IGNITION TIME OF 1115 MDT ON AUGUST 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

HIGH PRESSURE WILL BRING WARMER TEMPERATURES TO THE FIRE AREA FOR
THE NEXT COUPLE DAYS. MOISTURE IN SOUTHWEST FLOW ALOFT WILL BRING
A CHANCE FOR SOME ISOLATED SHOWERS AND THUNDERSTORMS DURING THE
AFTERNOON AND EVENING HOURS EACH OF THE NEXT SEVERAL DAYS. BREEZY
TO WINDY SOUTHWEST WINDS ARE EXPECTED THROUGH AT LEAST WEDNESDAY.


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

FORECASTER...BERC

.TODAY...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (55-65 PERCENT). ISOLATED RAIN
                    SHOWERS AND DRY THUNDERSTORMS POSSIBLE IN THE
                    AFTERNOON.
MAX TEMPERATURE.....69-73.
MIN HUMIDITY........22-26 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 16 TO 17 MPH WITH GUSTS TO
                    AROUND 30 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST AROUND 30 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.4 PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4200-5200 FT AGL INCREASING TO 7900-8900 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 37 TO 40 MPH.
SMOKE DISPERSAL.....VERY GOOD (141700 KNOT-FT) INCREASING TO
                    EXCELLENT (262900 KNOT-FT) IN THE AFTERNOON.

.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). ISOLATED RAIN
                    SHOWERS AND DRY THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........50-53 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 11 TO 17 MPH WITH GUSTS TO
                    AROUND 30 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE EVENING.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
LAL.................2 UNTIL 2400...THEN 1.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5900-6900 FT AGL DECREASING TO 2200-3100 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 31 TO 38 MPH.
SMOKE DISPERSAL.....EXCELLENT (188900 KNOT-FT) DECREASING TO GOOD
                    (79500 KNOT-FT) AFTER MIDNIGHT.

.TUESDAY...
SKY/WEATHER.........SUNNY (0-5 PERCENT). ISOLATED RAIN SHOWERS POSSIBLE
                    EARLY WITH ISOLATED DRY THUNDERSTORMS AFTER 1200.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........15-18 PERCENT.
20 FOOT WINDS.......SOUTHWEST WINDS 13 TO 17 MPH WITH GUSTS TO
                    AROUND 30 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGE TOP WINDS.....SOUTHWEST 25 TO 30 MPH.
LAL.................1 UNTIL 1200...THEN 2.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......4100-5100 FT AGL INCREASING TO 7800-8800 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 33 TO 38 MPH.
SMOKE DISPERSAL.....VERY GOOD (141600 KNOT-FT) INCREASING TO
                    EXCELLENT (240000 KNOT-FT) IN THE AFTERNOON.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...MOSTLY CLEAR. ISOLATED SHOWERS AND DRY
THUNDERSTORMS IN THE EVENING. AREAS OF SMOKE THROUGH THE NIGHT.
LOWS IN THE UPPER 40S. SOUTHWEST WINDS AROUND 13 MPH.
.WEDNESDAY...PARTLY CLOUDY WITH ISOLATED SHOWERS AND DRY
THUNDERSTORMS. AREAS OF SMOKE. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. SOUTHWEST WINDS AROUND 19 MPH.
.THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS GENERALLY LESS THAN
10 MPH.

$$

FORECASTER...BERC
REQUESTED BY...CAL ANACKER
REASON FOR REQUEST...PRESCRIBED
.TAG 20120827.ALPIN.01/RIW