FNUS75 KGGW 181557
FWSGGW

SPOT FORECAST FOR COTTONWOOD RX...BLM LED
NATIONAL WEATHER SERVICE GLASGOW MT
957 AM MDT TUE MAY 18 2010

FORECAST IS BASED ON IGNITION TIME OF 0945 MDT ON MAY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WITH HIGH PRESSURE MOVING AWAY TO THE EAST AND LOW
PRESSURE APPROACHING FROM THE WEST...THE BURN SITE IS FAVORED FOR
AN INCREASE IN SOUTHEASTERLY WINDS AND STRONG DAYTIME HEATING
TODAY. THESE INGREDIENTS COMBINED WITH AN INCREASE IN DEWPOINT
TEMPERATURES WILL GIVE RISE TO SHOWERS AND THUNDERSTORMS THIS
AFTERNOON AND EVENING WITH GUSTY AND ERRATIC WINDS AND CLOUD TO
GROUND LIGHTING POSSIBLE. SOME OF THE STRONGER STORMS MAY INCLUDE
SMALL HAIL THIS AFTERNOON AND EVENING. CHANCES FOR SHOWERS AND
THUNDERSTORMS WILL CONTINUE THROUGH WEDNESDAY. EXPECT A MIXING HEIGHT
AROUND 9100 FT AGL AND MIXING WINDS FROM THE SOUTHEAST AROUND 17 MPH
TODAY...AND A MIXING HEIGHT AROUND 5800 FT AGL AND MIXING WINDS FROM
THE NORTH AROUND 6 MPH.

.TODAY...
SKY/WEATHER.........SUNNY (15-25 PERCENT) THEN BECOMING MOSTLY
                    CLOUDY (50-60 PERCENT). ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON. SOME
                    THUNDERSTORMS MAY PRODUCE GUSTY WINDS AND SMALL
                    HAIL IN THE AFTERNOON.
MAX TEMPERATURE.....84-89.
MIN HUMIDITY........24-28 PERCENT.
WIND (20 FT)........UP SLOPE AND UP VALLEY 10 TO 18 MPH. GUSTS UP TO 25
                    MPH IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
LAL.................2.
CWR.................10 PERCENT.
MIXING HEIGHT.......9100 FT AGL.
MIXING WINDS........SOUTHEAST AROUND 17 MPH.

.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT). SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE EVENING...THEN
                    A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
MIN TEMPERATURE.....53-58.
MAX HUMIDITY........83-87 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 7 TO 12 MPH WITH GUSTS TO
                    AROUND 20 MPH EARLY IN THE EVENING SHIFTING TO
                    THE SOUTHWEST AROUND 8 MPH AFTER MIDNIGHT.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
                    IN THE EVENING.
LAL.................3.
CWR.................10 PERCENT.
MIXING HEIGHT.......900 FT AGL.
MIXING WINDS........SOUTHEAST AROUND 12 MPH.

.WEDNESDAY...
SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). A CHANCE OF
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....73-76.
MIN HUMIDITY........38-43 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 6 TO 11 MPH EARLY. GUSTS UP TO 22 MPH
                    IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
LAL.................3.
CWR.................10 PERCENT.
MIXING HEIGHT.......5800 FT AGL.
MIXING WINDS........NORTH AROUND 6 MPH.

$$
FORECASTER...MICKELSON
REQUESTED BY...ANDY OESTREICH
TYPE OF REQUEST...PRESCRIBED
.TAG 20100518.COTTO.01/GGW