FNUS75 KGJT 232350
FWSGJT

SPOT FORECAST FOR TWIN BUTES FIRE...BLM
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
550 PM MDT FRI JUL 23 2010

FORECAST IS BASED ON REQUEST TIME OF 1619 MDT ON JULY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
OUTFLOW BOUNDARIES FROM ISOLATED SHOWERS AND THUNDERSTORMS THIS
EVENING MAY CAUSE SOME ERRATIC GUSTY WINDS. HIGH PRESSURE WILL
BUILD OVER THE GREAT BASIN AND BRING SLIGHTLY DRIER AIR TO THE
NORTH KEEPING ISOLATED AFTERNOON AND EVENING STORMS SOUTH OF THE
FIRE AREA. THE BETTER MOISTURE AND STORM COVERAGE WILL REMAIN TO
THE SOUTH THROUGH THE WEEKEND. EXPECT LOWER MINIMUM RH VALUES...IN
THE LOW 20S...AS THE MOISTURE DECREASES. FAIRLY GOOD RH RECOVERIES
OVERNIGHT. GUSTY AND ERRATIC WINDS CAN BE EXPECTED FROM STORMS.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (40-50%).
MIN TEMPERATURE.....49-54 F.
MAX HUMIDITY........65-70%.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE
                    TERRAIN DRIVEN 3 TO 6 MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....BECOMING POOR AFTER 2100.
HAINES INDEX........5 MODERATE.
LAL.................1.
MIXING HEIGHT.......4400 FT AGL DECREASING TO 200-400 FT AGL IN THE
                    LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTHWEST 10 MPH SHIFTING TO THE NORTHEAST
                    AFTER MIDNIGHT.

.SATURDAY...

SKY/WEATHER.........PARTLY CLOUDY (30-40%) THEN BECOMING MOSTLY
                    CLOUDY (60-70%).
MAX TEMPERATURE.....79-84 F.
MIN HUMIDITY........21-26%.
WIND (20 FT)........TERRAIN DRIVEN WINDS 3 TO 6 MPH BECOMING
                    NORTHWEST 5 TO 9 MPH BY 1100.
SMOKE DISPERSAL.....POOR INCREASING TO GOOD
                    IN THE AFTERNOON.
HAINES INDEX........5 MODERATE.
LAL.................1.
MIXING HEIGHT.......200-1400 FT AGL INCREASING TO 10100 FT AGL IN
                    THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST 10 MPH SHIFTING TO THE NORTHWEST IN
                    THE AFTERNOON.

.SATURDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (60-70%) THEN BECOMING PARTLY
                    CLOUDY (30-40%).
MIN TEMPERATURE.....50-55 F.
MAX HUMIDITY........69-74%.
WIND (20 FT)........NORTH WINDS 5 TO 9 MPH SHIFTING TO TERRAIN
                    DRIVEN 3 TO 6 MPH AFTER 2200.
SMOKE DISPERSAL.....POOR AFTER 2100.
HAINES INDEX........4 LOW.
LAL.................1.
MIXING HEIGHT.......5100 FT AGL DECREASING TO 200-500 FT AGL IN THE
                    LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTH 10 MPH SHIFTING TO THE SOUTH 7 MPH AFTER
                    MIDNIGHT.


$$
FORECASTER...AS
REQUESTED BY...ALEX FARINETTI
TYPE OF REQUEST...WILDFIRE
.TAG 20100723.TWINB.01/GJT