878
FXUS65 KBYZ 210252
AFDBYZ
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE BILLINGS MT
752 PM MST WED NOV 20 2024
KEY MESSAGES
- COOLER CONDITIONS ON SUNDAY WITH A CHANCE OF SNOW.
- SNOW AMOUNTS WILL BE LIGHT ON THE PLAINS.
UPDATE
WINDS NEAR LIVINGSTON HAVE OVERPERFORMED THROUGHOUT THE LATE
AFTERNOON AND EVENING. RAISED WINDS THROUGH 18Z TOMORROW TO
REFLECT CURRENT AND EXPECTED WINDS. TONIGHT WILL BE COOL WITH
PASSING MID TO HIGH LEVEL CLOUD. TEMPERATURES ARE CURRENTLY IN THE
20S FOR MOST LOCATIONS AND ARE EXPECTED TO FALL INTO THE TEENS
FOR MANY LOCATIONS. LOCATIONS IN FALLON COUNTY NEAR THE DAKOTAS
BORDER HAVE A >50% CHANCE OF GETTING A TEMPERATURE IN THE SINGLE
DIGITS. TORGERSON
DISCUSSION
REST OF TODAY THROUGH THURSDAY NIGHT...
THE BREEZY WEST TO NORTHWESTERLY WINDS IN FAR EASTERN MONTANA
TODAY WILL COME TO AN END THIS EVENING. ONCE THIS HAPPENS,
GENERALLY LIGHT WINDS WILL PREVAIL OVER THE PLAINS. OUTSIDE OF THE
PLAINS, BREEZY SOUTHWESTERLY WINDS LOOK TO CONTINUE OVER THE
BEARTOOTH/ABSAROKA MOUNTAINS THROUGH THURSDAY.
WHILE MUCH OF THE REGION WILL REMAIN DRY, PERIODS OF ISOLATED TO
SCATTERED RAIN/SNOW SHOWERS ARE EXPECTED OVER THE MOUNTAINS AND
FOOTHILLS OF SOUTH-CENTRAL MONTANA THIS EVENING THROUGH THURSDAY
NIGHT (15-50 PERCENT CHANCE). WITH THIS, ANY PRECIPITATION THAT
OCCURS WILL BE ALL SNOW IN THE MOUNTAINS AND A RAIN/SNOW MIX OVER
THE LOWER ELEVATIONS OF THE FOOTHILLS/VALLEYS. PRECIPITATION
AMOUNTS WILL REMAIN LIGHT WITH THIS ACTIVITY.
FOR TEMPERATURES, LOOK FOR LOWS TO DROP INTO THE UPPER TEENS TO
LOWER 30S ACROSS MUCH OF THE REGION TONIGHT. IN FAR EASTERN
MONTANA, TEMPERATURES ARE EXPECTED TO BE A BIT COLDER WITH LOWS IN
THE UPPER SINGLE DIGITS TO MID-TEENS. THURSDAY WILL SEE HIGHS IN
THE THE 40S TO LOWER 50S WITH LOWS IN THE UPPER TEENS TO MID 30S
AT NIGHT. ARENDS
FRIDAY THROUGH WEDNESDAY...
UPPER RIDGING ON FRIDAY GIVES WAY TO SW FLOW ON SATURDAY. ENERGY
MOVING INTO THE RIDGE ON FRI. WILL BRING A CHANCE OF RAIN AND SNOW
TO AREAS N AND W OF KBIL. BEST CHANCES (60%) WERE OVER JUDITH GAP
IN THE MORNING. HIGHS WILL BE IN THE UPPER 30S AND 40S. RAIN AND
SNOW CHANCES INCREASE FROM W TO E DURING SAT. AS A COLD FRONT
PUSHES INTO THE NW ZONES. FRONT MOVES SE THROUGH THE FORECAST AREA
SAT. NIGHT BRINGING A MODERATE TO HIGH CHANCE OF RAIN AND SNOW IN
THE EVENING TO MOST OF THE AREA. RAIN AND SNOW CHANGES OVER TO ALL
SNOW BEHIND THE FRONT LATE SAT. NIGHT. UPPER TROUGH WILL PUSH E
ALONG THE CANADIAN BORDER SAT. NIGHT THROUGH SUNDAY. THERE WILL BE
LOW TO MODERATE CHANCES OF SNOW SUN. MORNING, THEN LINGERING
CHANCES S OF KBIL IN THE AFTERNOON. THE PROBABILITY OF AT LEAST 2
INCHES OF SNOW THROUGH LATE SUNDAY HAS DROPPED TO 14% AT KBIL.
TEMPS ON SAT. WILL BE IN THE 40S TO LOWER 50S. IT WILL BE MUCH
COOLER ON SUNDAY WITH HIGHS IN THE 20S AND 30S. THE CHANCES OF
HIGH TEMPS BEING 32 DEGREES OR LOWER ON SUN. ARE 68% IN KBIL, 88%
IN MLS, 92% IN KBHK AND 34% IN KSHR.
RIDGING OR NW FLOW WILL BE OVER THE AREA FOR MONDAY WITH A MOSTLY
DRY FORECAST AND HIGHS FROM THE 20S E TO THE 30S CENTRAL AND W.
TUESDAY WILL BE MAINLY DRY AND A LITTLE WARMER THAN MON. AHEAD OF
THE NEXT APPROACHING TROUGH. CLUSTERS HANDLE THE TROUGH
DIFFERENTLY ON WEDNESDAY. FORECAST FOR NOW HAS LOW CHANCES FOR
SNOW MAINLY OVER AND NEAR THE MOUNTAINS WITH HIGHS IN THE 30S.
ARTHUR
AVIATION
BREEZY SW WINDS, GUSTING 30-40 KTS AT TIMES WILL CONTINUE AT KLVM
OVERNIGHT INTO THURSDAY. THERE IS ALSO A LOW CHANCE OF
PRECIPITATION (30 PERCENT) THURSDAY OVER THE WESTERN FOOTHILLS AS
SCATTERED RAIN/SNOW SHOWERS ARE FORECAST TO MOVE OVER THE
MOUNTAINS OF SOUTH-CENTRAL MONTANA. WITH THIS, PERIODS OF MOUNTAIN
OBSCURATIONS ARE EXPECTED. OUTSIDE OF THIS ACTIVITY, VFR
CONDITIONS WILL PREVAIL. ARENDS/STP
PRELIMINARY POINT TEMP/POPS
THU FRI SAT SUN MON TUE WED
-----------------------------------------------------------
BIL 022/045 028/041 026/045 021/030 012/031 016/038 018/035
01/B 11/B 13/O 53/S 21/B 11/B 11/B
LVM 028/051 035/054 036/052 022/038 015/038 018/041 020/040
13/O 33/R 47/R 73/S 31/B 11/B 32/S
HDN 018/045 023/044 023/043 018/030 010/030 012/036 014/035
01/B 01/B 12/R 64/S 21/B 11/B 12/S
MLS 015/043 022/039 022/039 015/025 007/027 009/031 012/032
00/U 01/B 11/E 22/S 11/B 10/B 11/B
4BQ 017/047 024/045 024/044 019/029 010/032 014/037 015/035
00/U 00/B 00/B 12/S 11/B 00/B 11/B
BHK 009/042 018/043 019/041 013/025 003/027 007/033 009/034
00/U 00/B 11/E 21/B 11/B 10/B 01/B
SHR 017/051 027/054 026/054 019/035 012/037 014/042 016/040
00/U 00/B 01/B 44/S 31/B 11/B 12/S
BYZ WATCHES/WARNINGS/ADVISORIES
MT...NONE.
WY...NONE.
WEATHER.GOV/BILLINGS
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