Suppression Forecast
Issued by NWS Great Falls, MT

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000
FNUS75 KTFX 301344
FWSTFX

SPOT FORECAST FOR MASS GIES UNIT 28...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
715 AM MDT FRI SEP 30 2016

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON SEPTEMBER 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
THE AIRMASS WILL BECOME INCREASINGLY UNSTABLE TODAY THOUGH SATURDAY.
THERE IS A VERY SLIGHT CHANCE FOR A SHOWER OR THUNDERSTORM
THIS AFTERNOON. GUSTY AND ERRATIC WINDS COULD OCCUR WITH ANY OF THE
SHOWERS OR THUNDERSTORMS.  WINDS WILL INCREASE ON SATURDAY AS A COLD
FRONT APPROACHES THE REGION WITH A BETTER CHANCE FOR SHOWERS AND
THUNDERSTORMS.  HUMIDITY RECOVERIES WILL BE MODERATE TONIGHT.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY WITH AN ISOLATED SHOWER OR
THUNDERSTORM IN THE AFTERNOON.
CWR.................5 PERCENT.
MAX TEMPERATURE.....67-72.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH. GUSTY AND ERRATIC
                    WINDS POSSIBLE NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
RIDGETOP WIND.......WEST WINDS 5 TO 10 MPH.
MIXING HEIGHT.......500 FT AGL...INCREASING TO 8000 FT AGL IN THE
                    AFTERNOON.
MIXING WINDS........WEST AROUND 5 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....44-49.
MAX HUMIDITY........68-73 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS AROUND 5 MPH.
RIDGETOP WIND.......SOUTH WINDS 5 TO 10 MPH.
MIXING HEIGHT.......8000 FT AGL...DECREASING TO 500 FT AGL AFTER
                    MIDNIGHT.
MIXING WINDS........SOUTHWEST AROUND 5 MPH.

.SATURDAY...

SKY/WEATHER.........PARTLY SUNNY. A CHANCE OF SHOWERS AND A SLIGHT
                    CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CWR.................30 PERCENT.
MAX TEMPERATURE.....67-72.
MIN HUMIDITY........32-37 PERCENT. WIND (20 FT)........SOUTHWEST
WINDS AROUND 10 MPH WITH GUSTS TO 20 MPHIN THE AFTERNOON. GUSTY
AND ERRATIC WINDSEXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25
MPH    IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL...INCREASING TO 6500 FT AGL IN THE
                AFTERNOON. MIXING WINDS........SOUTH AROUND 10 MPH.

.TODAY...
TIME (MDT)      11A    12P    1PM    2PM    3PM    4PM    5PM
SKY (%).........52     44     41     44     44     39     37
WEATHER COV.....S CHC  S CHC  S CHC  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........S CHC  S CHC S CHC  S CHC   S CHC  S CHC  S CHC
TEMP............59     63     65     67     68     67     67
RH..............57     48     45     39     36     36     36
20 FT WIND DIR..SW     SW     SW     W      W      SW     SW
20 FT WIND SPD..4      4      4      4      4      4      4
20 FT WIND GUST.10     10     10     10     10     10     5

.TONIGHT...
TIME (MDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........37     28     27     18     24     30
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TSTM COV........
TEMP............64     56     53     51     50     48
RH..............43     55     61     66     68     73
20 FT WIND......SW 4   S 4    SE 4   SE 4   SE 4   SE 4
20 FT WIND GUST.5      5      5      5      5      5

.SATURDAY...
TIME (MDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........41        41        66        66
WEATHER COV.....                    CHANCE    CHANCE
WEATHER TYPE....NONE      NONE      RNSHWR    RNSHWR
TSTM COV........                    S CHC     S CHC
TEMP............49        52        67        67
RH..............71        67        43        39
20 FT WIND......S 4G10    S 4G10    SW 8G20   SW 8G20

$$
FORECASTER...LANGLIEB
REQUESTED BY...TED FRAZER
TYPE OF REQUEST...PRESCRIBED
.TAG 20160930.MASSG.01/TFX



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