FNUS75 KRIW 272122
FWSRIW

SPOT FORECAST FOR BULL...IA TDC
NATIONAL WEATHER SERVICE RIVERTON WY
322 PM MDT MON SEP 27 2010

FORECAST IS BASED ON IGNITION TIME OF 1450 MDT ON SEPTEMBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...UPPER LEVEL HIGH PRESSURE CONTINUES OVER THE GREAT
BASIN TODAY...BRINGING HIGH CLOUDS TO WESTERN WYOMING...ALONG WITH
VERY WARM AND DRY CONDITIONS. TEMPERATURES EXPECTED TO REMAIN
RELATIVELY WARM OVERNIGHT...WITH POOR HUMIDITY RECOVERY AT THE
HIGHER ELEVATIONS. LOWER ELEVATION INVERSIONS WILL CONTINUE
TOMORROW MORNING...AND BREAK BY LATE MORNING. WITH WEAK LOW
PRESSURE DEVELOPING IN EASTERN WYOMING TUESDAY AFTERNOON...WINDS
WILL INCREASE TUESDAY AFTERNOON TO 10 TO 20 MPH RANGE IN MORE
EXPOSED LOCATIONS. ALSO EXPECT TUESDAY TO BE MUCH-ABOVE-NORMAL
WARMER AND DRIER COMPARED TO MONDAY. SLIGHT COOLING POSSIBLE ON
WEDNESDAY WITH WEAK FRONT FROM NORTHEAST MOVING THROUGH WEDNESDAY
NIGHT.


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

FORECASTER...MCDONALD

.THIS AFTERNOON...
SKY/WEATHER.........MOSTLY SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 75.
MIN HUMIDITY........12-15 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-10 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 WITH GUSTS 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
SMOKE DISPERSAL.....GOOD (82500 KNOT-FT).

.TONIGHT...
SKY/WEATHER.........CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........45-55 PERCENT.
20 FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH SHIFTING TO THE EAST AROUND
                    7 MPH AFTER MIDNIGHT.
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 DECREASING TO 1200-2200 FT AGL
                    AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH SHIFTING TO THE NORTHEAST
                    AFTER MIDNIGHT.
SMOKE DISPERSAL.....POOR (4500-24400 KNOT-FT).

.TUESDAY...
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....75-80 HIGHER ELEVATIONS...80-85 LOWER ELEVATIONS.
MIN HUMIDITY........AROUND 10 PERCENT.
20 FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH IN THE MORNING...BECOMING
                    WEST 10 TO 15 MPH AFTER 1200 WITH GUSTS TO 20 MPH.
RIDGE TOP WINDS.....AFTER 1000 BECOMING WEST 15 TO 20 MPH.
LAL.................1.
CHC OF WETTING RAIN.ZERO PERCENT.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1200-2200 FT AGL INCREASING TO 4500-5000 FT AGL
                    IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 8 MPH SHIFTING TO THE WEST 15
                    TO 25 MPH IN THE LATE MORNING AND AFTERNOON.
SMOKE DISPERSAL.....POOR (AROUND 15000 KNOT-FT) BECOMING GOOD
                    (AROUND 95000 KNOT-FT) AFTER 1200.

.FORECAST DAYS 3 THROUGH 5...
.TUESDAY NIGHT...CLEAR. LOWS IN THE UPPER 30S. WINDS GENERALLY
LESS THAN 10 MPH.
.WEDNESDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER
70S. WINDS GENERALLY LESS THAN 10 MPH.
.THURSDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
.FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.

$$

FORECASTER...MCDONALD
REQUESTED BY...CAREY
REASON FOR REQUEST...PRESCRIBED
.TAG 20100927.BULL_.01/RIW