FNUS75 KMSO 191158
FWSMSO

SPOT FORECAST FOR MURRAY DOUGLAS HF3 F6
NATIONAL WEATHER SERVICE MISSOULA MT
558 AM MDT TUE MAY 19 2009

FORECAST IS BASED ON IGNITION TIME OF 0555 MDT ON MAY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...UNSTABLE SOUTHWEST FLOW AHEAD OF AN APPROACHING
WEATHER SYSTEM AND ASSOCIATED COLD FRONT WILL ALLOW CLOUDS TO PASS
OVER THE FIRE THROUGH THE MORNING WITH INCREASED WINDS BY NOON
AHEAD OF THE FRONT. BEST POTENTIAL FOR THUNDERSTORMS WILL BE ALONG
THE COLD FRONT...EXPECTED TO BE THROUGH THE FIRE BETWEEN 1600-1800
MDT. THE INCREASED MOISTURE WILL INHIBIT HEATING TODAY FOR
READINGS 10 DEGREES COOLER...AND SLIGHTLY HIGHER HUMIDITIES.
SHOWERS AND THUNDERSTORMS WILL LINGER THROUGH THE EVENING AND
WEDNESDAY AS WEATHER SYSTEM MOVES OVER THE FIRE. INCREASED
GRADIENT AND UNSTABLE CONDITIONS WILL KEEP WINDS UP TONIGHT AND
WEDNESDAY AS WELL FOR POOR RECOVERIES.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE LATE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 20 PERCENT IN THE
                    AFTERNOON.
MAX TEMPERATURE.....66-71.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5-9 MPH INCREASING TO 10-15 MPH
                    WITH GUSTS NEAR 30 MPH AFTER NOON. WINDS BECOMING
                    WEST AROUND 20 MPH WITH GUSTS TO 35 MPH LATE
                    IN THE AFTERNOON.
MIXING HEIGHT.......5100 FT AGL.
MIXING WINDS........SOUTHWEST 30 MPH.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........42  42  42  42  42  42  57  57  57  57  57  57
WEATHER COV.....                                       SCT SCT
WEATHER TYPE....                                        RW  RW
TEMP............M   M   M   M   M   M   M   M   M   M   M   M
RH..............M   M   M   M   M   M   M   M   M   M   M   M
20 FT WIND DIR..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW   W
20 FT WIND SPD..4   4   4   5   5   5   10  12  15  18  18  22
20 FT WIND GUST.10  10  10  10  10  10  18  20  22  30  30  35

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
                    IN THE EVENING. CHANCE OF SHOWERS THROUGH THE
                    NIGHT.
CWR.................40 PERCENT DECREASING TO 10 PERCENT AFTER
                    MIDNIGHT.
MIN TEMPERATURE.....38-43.
MAX HUMIDITY........74-79 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 9-17 MPH. GUSTS UP TO 30 MPH IN
                    THE EVENING.
MIXING HEIGHT.......700 FT AGL.
MIXING WINDS........SOUTHWEST 10 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS IN THE
                    MORNING...THEN CHANCE OF SHOWERS IN THE
                    AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....54-59.
MIN HUMIDITY........24-29 PERCENT.
WIND (20 FT)........WEST WINDS 10-13 MPH WITH HIGHER GUSTS.
MIXING HEIGHT.......5700 FT AGL.
MIXING WINDS........WEST 20 MPH.

$$
FORECASTER...MEAD
REQUESTED BY...MISSOULA FIELD OFFICE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090519.MURRA.02/MSO