Suppression Forecast
Issued by NWS Great Falls, MT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
765
FNUS75 KTFX 011427
FWSTFX

SPOT FORECAST FOR MASS GIES UNIT 28...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
827 AM MDT SAT OCT 1 2016

FORECAST IS BASED ON IGNITION TIME OF 0810 MDT ON OCTOBER 01.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL ACCOMPANY A COLD
FRONT MOVING THROUGH THE AREA TODAY.  A FEW OF THE THUNDERSTORMS
COULD BE STRONG WITH GUSTY AND ERRATIC WINDS. WINDS WILL SHIFT
TO THE NORTH BEHIND THE FRONT TONIGHT WITH GOOD HUMIDITY
RECOVERIES.COOL WEATHER IS EXPECTED ON SUNDAY ALONG WITH A FEW
SHOWERS.WIDESPREAD RAIN AND SNOW WILL MOVE INTO THE AREA ON
MONDAY.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. SCATTERED SHOWERS. ISOLATED
THUNDERSTORMS IN THE AFTERNOON.
CWR.................30 PERCENT.
MAX TEMPERATURE.....65-70.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH WITH GUSTS
TO 20 MPH IN THE AFTERNOON. GUSTY AND
ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS
IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS
TO 20 MPH IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL...INCREASING TO 6500 FT AGL IN
THE AFTERNOON.
MIXING WINDS........SOUTH AROUND 5 MPH...INCREASING TO
SOUTHWEST AROUND 20 MPH IN THE AFTERNOON.

TIME (MDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........49  49  53  59  65  74  74  75  78  78
WEATHER COV.....    ISO ISO SCT SCT SCT SCT SCT SCT SCT
WEATHER TYPE....    RW  RW  RW  RW  RW  RW  RW  RW  RW
TSTM COV........                ISO ISO ISO ISO ISO ISO
TEMP............49  52  57  61  65  66  66  66  64  62
RH..............68  66  55  49  43  42  40  42  46  54
20 FT WIND DIR..SE  SE  S   S   S   S   S   SW  SW  SW
20 FT WIND SPD..4   4   4   4   8   8   8   8   4   4
20 FT WIND GUST.10  10  10  15  15  20  20  20  20  20

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY...THEN BECOMING PARTLY CLOUDY.
                    SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING...THEN A SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT.
CWR.................15 PERCENT.
MIN TEMPERATURE.....34-39.
MAX HUMIDITY........84-89 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH WITH GUSTS TO 20 MPH
BECOMING NORTH WIND AROUND 5 MPH AFTER
2100 MDT. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS IN THE EVENING.
RIDGETOP WIND.......WEST WINDS AROUND 10 MPH WITH GUSTS TO
20 MPH BECOMING NORTH WINDS AROUND 5 MPH
AFTER 2100 MDT.
MIXING HEIGHT.......6500 FT AGL...DECREASING TO 500 FT AGL AFTER
                    MIDNIGHT.
MIXING WINDS........SOUTHWEST AROUND 20 MPH...BECOMING NORTH
AROUND 5 MPH AFTER MIDNIGHT.

TIME (MDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........75     62     58     34     23     25
WEATHER COV.....SCTTRD SCTTRD SCTTRD S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR NONE   NONE
TSTM COV........ISOLTD ISOLTD ISOLTD
TEMP............59     53     49     45     41     38
RH..............62     69     77     86     82     87
20 FT WIND......W 8    W 5    NW 4   N 4    N 4    N 0
20 FT WIND GUST.20     15     10     10     10     5

.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY...THEN BECOMING MOSTLY CLOUDY.
A SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
CWR.................15 PERCENT.
MAX TEMPERATURE.....53-58.
MIN HUMIDITY........36-41 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 10 MPH WITH GUSTS TO
15 MPH IN THE AFTERNOON.
RIDGETOP WIND.......SOUTHEAST AROUND 10 MPH WITH GUSTS TO 15
MPH IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL...INCREASING TO 5000 FT AGL IN
THE AFTERNOON.
MIXING WINDS........NORTH AROUND 5 MPH...INCREASING TO SOUTH
AROUND 20 MPH IN THE AFTERNOON.

TIME (MDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........29        29        73        73
WEATHER COV.....                    S CHC     S CHC
WEATHER TYPE....NONE      NONE      RNSHWR    RNSHWR
TSTM COV........
TEMP............38        40        51        54
RH..............88        78        54        42
20 FT WIND......E 4G10    E 4G10    SE 8G15   SE 8G15

$$
FORECASTER...LANGLIEB
REQUESTED BY...TED FRAZER
TYPE OF REQUEST...PRESCRIBED
.TAG 20161001.MASSG.01/TFX



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.