627
FXUS65 KBYZ 222144
AFDBYZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
244 PM MST MON DEC 22 2025
KEY MESSAGES
- SNOWFALL WILL CONTINUE THROUGH TUESDAY MORNING IN THE ABSAROKA-
BEARTOOTH MOUNTAINS.
- ABOVE NORMAL TEMPERATURES GENERALLY EXPECTED THROUGH THE WEEK.
- COLD FRONT MAY (20-40%) BRING A SHOT OF RAIN/SNOW TO THE AREA
CHRISTMAS DAY, BUT NO BIG STORMS EXPECTED.
- ANOTHER CHANCE FOR LIGHT PRECIPITATION FRIDAY NIGHT INTO
SATURDAY MORNING.
DISCUSSION
TODAY THROUGH SUNDAY...
SNOW IS EXPECTED TO CONTINUE OVER THE BEARTOOTH/ABSAROKA AND CRAZY
MOUNTAINS THROUGH TUESDAY MORNING. GENERALLY LESS THAN 6 INCHES
OF ADDITIONAL SNOW IS EXPECTED.
TUESDAY AND WEDNESDAY WILL BE WARM WITH TEMPERATURES IN THE 40S TO
LOW 50S F TUESDAY INCREASING INTO THE 50S F WEDNESDAY. A WEAK COLD
FRONT IS EXPECTED TO MOVE ACROSS THE REGION EARLY CHRISTMAS DAY
COOLING TEMPERATURES BACK INTO THE 40S AND LOW 50S F. THIS FRONT
WILL BRING A 20-40% CHANCE FOR PRECIPITATION FOR LOCATIONS WEST OF
ROSEBUD COUNTY. PRECIPITATION AMOUNTS ARE EXPECTED TO REMAIN
LIGHT WITH THE NBM GIVING LOCATIONS ALONG THE FOOTHILLS A 20-50%
CHANCE FOR GETTING GREATER THAN 0.10 INCHES WITH A LESS THAN 10%
CHANCE FOR MOST OF THE REGION. PRECIPITATION IS EXPECTED TO BE
RAIN FOR THE LOWER ELEVATIONS AND FOOTHILLS WITH SNOW REMAINING IN
THE MOUNTAINS.
A TROUGH OVER THE WEST COAST WILL SET UP SOUTHWEST UPPER LEVEL
FLOW INTO THE BEARTOOTH/ABSAROKA MOUNTAINS CREATING A FAVORABLE
SETUP FOR EXTENDED MOUNTAIN SNOWFALL THURSDAY THROUGH SATURDAY.
CURRENTLY, THIS LOOKS TO BE A PERSISTENT LIGHT TO MODERATE SNOW
EVENT WITH THE NBM 72 HOUR 75TH PERCENTILE INDICATING AROUND 12
INCHES OF SNOW. THE CHANCE FOR GREATER THAN 6 INCHES OF SNOWFALL
IS AROUND 70% FOR THE MOUNTAINS NORTH OF COOKE CITY.
AN UPPER LEVEL TROUGH MOVES THROUGH THE REGION SATURDAY BRINGING
COOLER TEMPERATURES AND PRECIPITATION CHANCES. MOST LOCATIONS WILL
SEE TEMPERATURES RETURN TO NEAR NORMAL VALUES IN THE 30S F
SATURDAY WITH 10-30% PRECIPITATION CHANCES. THE CHANCE FOR GREATER
THAN 0.1 INCHES OF PRECIPITATION REMAINS BELOW 20% FOR SATURDAY.
TEMPERATURES ARE EXPECTED TO REBOUND INTO THE 40S F FOR SUNDAY.
TORGERSON
AVIATION
SCATTERED SHOWERS ALONG A LINE FROM KLVM TO KBHK WILL CONTINUE TO
DECREASE THIS AFTERNOON, WITH ONLY AN ISOLATED SHOWER OR TWO
DURING THE EVENING AFTER 02Z. UNDER ANY SHOWERS, CEILINGS AND
VISIBILITY MAY BRIEFLY BE REDUCED TO MVFR. OVER THE
ABSAROKA/BEARTOOTH MOUNTAINS, EXPECT MOUNTAIN OBSCURATION AS SNOW
SHOWERS CONTINUE INTO TUESDAY MORNING. ARCHER
PRELIMINARY POINT TEMP/POPS
TUE WED THU FRI SAT SUN MON
-----------------------------------------------------------
BIL 031/046 033/053 034/050 030/053 027/037 021/045 029/050
11/E 00/B 14/R 11/B 11/B 00/B 00/B
LVM 033/051 038/055 041/052 034/047 024/037 022/043 027/049
22/E 01/B 65/R 23/O 21/B 00/B 00/B
HDN 028/046 027/052 030/047 026/052 023/036 016/043 022/048
20/E 00/B 14/R 11/B 22/S 00/B 00/B
MLS 027/041 026/041 027/040 023/047 018/029 011/036 022/045
00/E 00/B 02/R 21/B 11/E 00/B 00/U
4BQ 029/047 031/053 034/049 028/053 025/035 016/041 024/048
10/B 00/B 01/E 11/B 12/S 00/B 00/U
BHK 022/041 024/044 025/042 020/046 016/027 005/033 017/043
00/E 00/B 01/E 21/U 21/B 00/U 00/U
SHR 025/049 032/056 032/054 028/052 022/037 015/044 022/051
10/B 00/B 13/R 11/B 22/S 00/B 00/B
BYZ WATCHES/WARNINGS/ADVISORIES
MT...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST TUESDAY FOR
ZONE 67.
WY...NONE.
WEATHER.GOV/BILLINGS
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