FNUS75 KGJT 010453
FWSGJT

SPOT FORECAST FOR MAILBOX RX...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1053 PM MDT THU APR 30 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON MAY 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
WEAK LOW PRESSURE SYSTEMS WILL SHEAR THROUGH THE NORTHERN ROCKIES
ON FRIDAY. THIS WILL CREATE DEEP AFTERNOON MIXING IN A DRY
SOUTHWEST FLOW OVER THE FIRE SITE. HIGH CLOUDS WILL INVADE AND
THICKEN LOWERING AFTERNOON TEMPERATURES AND WINDS SLIGHTLY. EXPECT
RAIN AND COOLER TEMPERATURES ON SATURDAY. SHOWERS WILL DECREASE IN
COVERAGE ON SUNDAY AS THE TROUGH CONTINUES TO TRACK EAST AND FLOW
ALOFT TRANSITIONS FROM NORTHWESTERLY TO WESTERLY. THE GRADIENT
WILL TIGHTEN AND WINDS WILL INCREASE INTO THE FIRST PART OF NEXT WEEK.

.FRIDAY...

SKY/WEATHER.........PARTLY CLOUDY (30-40%) THEN BECOMING MOSTLY
                    CLOUDY (60-70%).
MAX TEMPERATURE.....72-77 F.
MIN HUMIDITY........8-13%.
20-FOOT WINDS.......TERRAIN DRIVEN WINDS 5-7 MPH INCREASING TO
                    SOUTHWEST 13 MPH WITH GUSTS TO AROUND 25 MPH
                    IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR UNTIL 1000 THEN BECOMING EXCELLENT.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......12100 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 22 MPH.

.FRIDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (70-80%).
MIN TEMPERATURE.....40-45 F.
MAX HUMIDITY........51-56%.
20-FOOT WINDS.......SOUTHWEST WINDS 10 MPH GUSTS TO 20 UNTIL SUNSET
                    THEN WINDS BECOMING TERRAIN DRIVEN 5-7 MPH.
SMOKE DISPERSAL.....EXCELLENT UNTIL 2000 THEN BECOMING POOR.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......1500 FT AGL.
TRANSPORT WINDS.....WEST 5 MPH.

.SATURDAY...

SKY/WEATHER.........CLOUDY (80-90%). NUMEROUS SHOWERS.
MAX TEMPERATURE.....58-63 F.
MIN HUMIDITY........36-41%.
20-FOOT WINDS.......TERRAIN DRIVEN 5-7 MPH BECOMING SOUTH TO SOUTHWEST
                    WINDS 13 MPH WITH GUSTS TO AROUND 25 MPH
                    BY LATE MORNING ESPECIALLY NEAR SHOWERS.
SMOKE DISPERSAL.....POOR UNTIL 1100 THEN BECOMING VERY GOOD.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......7800 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 16 MPH.

FOR SUNDAY...MOSTLY CLOUDY. SCATTERED SHOWERS. LOWS 33-43. HIGHS
56-66. WINDS LESS THAN 15 MPH.


$$
FORECASTER...AS
REQUESTED BY...ERIC BRANTINGHAM
TYPE OF REQUEST...PRESCRIBED
.TAG 20090501.MAILB.02/GJT