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Fire Weather Discussion and Planning Forecast for Zone 123
Issued by NWS Billings
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...THIS IS THE LAST DAILY FIRE WEATHER FORECAST OF THE SEASON.
FOR SPOT FORECAST REQUESTS PLEASE CONTACT THE NATIONAL WEATHER
SERVICE OFFICE IN BILLINGS...
DISCUSSION:
ANOTHER VERY MILD DAY IS IN STORE TODAY AS HIGH TEMPERATURES
REACH INTO THE 50S AND APPROACH THE LOWER 60S. A COLD FRONT WILL
MOVE INTO THE AREA TONIGHT AND EARLY SATURDAY AND SWITCH WINDS TO
THE WEST AND NORTHWEST. THE SOUTHWEST MONTANA MOUNTAINS WILL GET
ACCUMULATING SNOW LATE TONIGHT AND SATURDAY. THE PLAINS WILL BE
LIMITED TO A CHANCE OF RAIN AND SNOW SHOWERS WITH PRIMARILY
DOWNSLOPE FLOW. SATURDAY WILL BE COOLER AND WINDY. HUMPHREY
MTZ123-202315-
GALLATIN NATIONAL FOREST-
312 AM MST FRI NOV 20 2009
.TODAY...
SKY/WEATHER.........PARTLY CLOUDY.
MAX TEMPERATURE.....44-54 AT 5000 FEET...39-49 AT 7000 FEET.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........31-36 PERCENT.
24 HR TREND......3 PERCENT DRIER.
WIND (20 FT)
SLOPE/VALLEY.......SOUTH WINDS 5 TO 15 MPH.
RIDGETOP...........SOUTHWEST 40 TO 60 MPH.
LAL.................1...NO THUNDERSTORMS.
CWR.................ZERO.
HAINES INDEX........5.
.TONIGHT...
SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED SNOW SHOWERS IN THE
EVENING...THEN SCATTERED SNOW SHOWERS
OVERNIGHT.
MIN TEMPERATURE.....20-25.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........72-82 PERCENT AT 5000 FEET...77-87 PERCENT AT
7000 FEET.
24 HR TREND......23 PERCENT WETTER.
WIND (20 FT)
SLOPE/VALLEY.......SOUTHWEST WINDS 10 TO 20 MPH.
RIDGETOP...........SOUTHWEST 35 TO 50 MPH.
LAL.................1...NO THUNDERSTORMS.
CWR.................20 PERCENT.
HAINES INDEX........4.
.SATURDAY...
SKY/WEATHER.........MOSTLY CLOUDY WITH NUMEROUS SNOW SHOWERS.
MAX TEMPERATURE.....30-40 AT 5000 FEET...24-34 AT 7000 FEET.
24 HR TREND......14 DEGREES COOLER.
MIN HUMIDITY........39-49 PERCENT AT 5000 FEET...51-61 PERCENT AT
7000 FEET.
24 HR TREND......28 PERCENT WETTER.
WIND (20 FT)
SLOPE/VALLEY.......SOUTHWEST WINDS 10 TO 20 MPH.
RIDGETOP...........WEST 15 TO 25 MPH.
LAL.................1...NO THUNDERSTORMS.
CWR.................20 PERCENT.
HAINES INDEX........4.
.FORECAST DAYS 3 THROUGH 7......
.SUNDAY...MOSTLY CLOUDY. SNOW LIKELY. LOWS 13 TO 23. HIGHS 29 TO
39. SOUTHWEST WINDS 5 TO 15 MPH.
.MONDAY...MOSTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS 16 TO 23.
HIGHS 27 TO 37. SOUTHWEST WINDS 5 TO 15 MPH.
.TUESDAY...MOSTLY CLOUDY. SCATTERED SNOW SHOWERS. LOWS 17 TO 27.
HIGHS 30 TO 40. SOUTHWEST WINDS 5 TO 15 MPH.
.WEDNESDAY...MOSTLY CLOUDY. ISOLATED SNOW SHOWERS. LOWS 16 TO 26.
HIGHS 34 TO 44.
.THURSDAY...PARTLY CLOUDY. LOWS 21 TO 31. HIGHS 38 TO 48.
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