FNUS75 KGJT 220423
FWSGJT

SPOT FORECAST FOR SEGAR MT...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1023 PM MDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1915 MDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE OVER THE GREAT BASIN WEAKENS TODAY. A
WEAK DISTURBANCE WILL PASS THIS AFTERNOON BRINGING SLIGHTLY
INCREASED INSTABILITY. MUCH ABOVE NORMAL TEMPERATURES WILL CONTINUE
TODAY AND THURSDAY...ADDING TO THE POTENTIAL FOR AN ISOLATED
AFTERNOON BUILDUP OVER THE HIGHER TERRAIN. GUSTY OUTFLOW WINDS ARE A
THREAT BOTH AFTERNOONS. GRADIENT SOUTHWEST WINDS INCREASE ON THURSDAY
AS A TROUGH OF LOW PRESSURE STRENGTHENS OVER THE PACIFIC NORTHWEST.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY (10-20%) THEN BECOMING PARTLY
                    CLOUDY (40-50%) IN THE AFTERNOON.
MAX TEMPERATURE.....68-71 F.
MIN HUMIDITY........15-17%.
20-FOOT WINDS.......EAST WINDS 5 MPH INCREASING TO WEST 5-10 MPH IN
                    THE AFTERNOON ISOLATED GUSTS TO 20 MPH. STRONGER
                    GUSTS POSSIBLE NEAR LATE AFTERNOON VIRGA.
SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR. EXCELLENT AFTER 1200.
HAINES INDEX........5 MODERATE.
LAL.................1.
MIXING HEIGHT.......3000 FT AGL AT 0900....RISING TO 12000 FT AGL.
TRANSPORT WINDS.....WEST 14 MPH.

.TONIGHT AFTER SUNSET...

SKY/WEATHER.........PARTLY CLOUDY (40-50%).
MIN TEMPERATURE.....40-45 F.
MAX HUMIDITY........38-43%.
20-FOOT WINDS.......EAST 5 MPH.
SMOKE DISPERSAL.....POOR (9300-12400 KNOT-FT).
HAINES INDEX........5 MODERATE.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 MPH.

.THURSDAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50%).
MAX TEMPERATURE.....69-72 F.
MIN HUMIDITY........14-19%.
20-FOOT WINDS.......SOUTHEAST WINDS 5 MPH INCREASING TO SOUTHWEST
                    8-12 MPH WITH GUSTS TO AROUND 30 MPH IN THE
                    AFTERNOON. STRONGER GUSTS POSSIBLE NEAR LATE
                    AFTERNOON VIRGA.
SMOKE DISPERSAL.....POOR UNTIL 0900...THEN EXCELLENT BY 1100.
HAINES INDEX........5 MODERATE.
MIXING HEIGHT.......14000 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 24 MPH.

$$
FORECASTER...JOE RAMEY
REQUESTED BY...DAVE TOELLE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090421.SEGAR.01/GJT