FNUS75 KTFX 231548
FWSTFX

SPOT FORECAST FOR NORTH MIDVALE UNIT...BLACKFEET
NATIONAL WEATHER SERVICE GREAT FALLS MT
848 AM MST WED FEB 23 2011

FORECAST IS BASED ON IGNITION TIME OF 1100 MST ON FEBRUARY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...VERY COLD TEMPERATURES AND LIGHT SNOW WILL CONTINUE WITH
DANGEROUS WIND CHILL VALUES POSSIBLE TONIGHT...

.DISCUSSION...A VERY COLD ARCTIC AIRMASS WILL CONTINUE TO DEEPEN
OVER THE REGION TODAY WITH TEMPERATURES REMAINING STEADY NEAR ZERO
THROUGH THIS AFTERNOON. WINDS WILL REMAIN FROM THE NORTH TO
NORTHEAST WITH OCCASIONAL LIGHT SNOW. WINDS INCREASE SOME TONIGHT
AND THIS COMBINED WITH THE VERY LOW TEMPERATURES WILL CREATE
DANGEROUSLY LOW WIND CHILL VALUES OF -20 TO -40 BELOW ZERO. VERY
COLD AND MOIST CONDITIONS WILL CONTINUE THROUGH THURSDAY.

.TODAY...

SKY/WEATHER.........CLOUDY. PERIODS OF SNOW.
MAX TEMPERATURE.....0-5.
MIN HUMIDITY........80-90 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 10 MPH.
RIDGE TOP WIND......NORTHEAST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......1000 FT AGL.
MIXING WINDS........NORTHEAST AROUND 10 MPH.

.TONIGHT...

SKY/WEATHER.........CLOUDY. SNOW WITH AREAS OF BLOWING AND DRIFTING
                    SNOW.
MIN TEMPERATURE.....15 BELOW TO 20 BELOW ZERO.
MAX HUMIDITY........82-87 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 10 TO 15 MPH.
RIDGE TOP WIND......NORTHEAST WINDS AROUND 15 MPH WITH GUSTS TO 20
                    MPH.
MIXING HEIGHT.......1000 FT AGL.
MIXING WINDS........NORTHEAST AROUND 15 MPH.

.THURSDAY...

SKY/WEATHER.........MOSTLY CLOUDY. PERIODS OF LIGHT SNOW OR
                    FLURRIES.
MAX TEMPERATURE.....7 BELOW TO 12 BELOW ZERO.
MIN HUMIDITY........75-85 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 10 TO 15 MPH.
RIDGE TOP WIND......NORTHEAST WINDS AROUND 15 MPH.
MIXING HEIGHT.......2000-3000 FT AGL.
MIXING WINDS........NORTHEAST AROUND 10 MPH.

$$
FORECASTER...HOENISCH
REQUESTED BY...TYSON RUNNINGWOLF
TYPE OF REQUEST...PRESCRIBED
.TAG 20110223.NORTH.01/TFX