757
FXUS65 KBYZ 240733
AFDBYZ
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
133 AM MDT SAT OCT 24 2026
KEY MESSAGES
- STORM SYSTEM EXITS EARLY THIS MORNING.
- BREEZY WINDS DECREASE TODAY.
- NEAR SEASONABLE TEMPERATURES (HIGHS IN THE 40S AND 50S) THIS
WEEKEND INTO NEXT WEEK.
- UNSETTLED CONDITIONS (20-50% PRECIPITATION CHANCES) LATE SUNDAY
INTO NEXT WEEK. UNCERTAINTY IS HIGH FOR THE EXTENDED FORECAST.
UPDATE
AREA OF LIGHT PRECIP TRACKING SLOWLY EASTWARD IS FADING FAST, AND
WILL END BEFORE SUNRISE. SNOW HAS ENDED AT JUDITH GAP, AND WINDS
ARE DECREASING, SO HAVE CANCELLED THE WINTER WEATHER ADVISORY. JKL
DISCUSSION
TODAY THROUGH FRIDAY...
THE CURRENT WEATHER SYSTEM EXITS THIS MORNING, ENDING THE CURRENT
CHANCE FOR PRECIPITATION AND ALLOWING FOR MOSTLY CLEAR SKIES INTO
EARLY SUNDAY. BREEZY WINDS WILL LINGER LONGEST OVER THE EAST BUT
ARE EXPECTED TO DECREASE BY EARLY THIS AFTERNOON. HIGHS WILL BE
MUCH COOLER THIS WEEKEND, IN THE 40S TO LOW 50S.
LATE SUNDAY INTO MONDAY, AN UPPER LOW CLIPS SOUTHEAST MONTANA,
ALLOWING FOR A CHANCE (20-50%) OF LIGHT SHOWERS OVER THE
SOUTHEAST. AS TEMPERATURES DECREASE OVERNIGHT, RAIN WILL CHANGE
OVER TO SNOW, ALTHOUGH LITTLE TO NO SNOW ACCUMULATION IS EXPECTED.
CURRENTLY, THERE IS A LESS THAN 20% CHANCE FOR MORE THAN A 0.1" OF
SNOW OUTSIDE OF THE HIGHER HILLS.
LATE MONDAY INTO WEDNESDAY, A MORE IMPACTFUL SYSTEM IS EXPECTED TO
BRING A BETTER CHANCE (30-50% OVER THE PLAINS, 60-80% OVER THE
MOUNTAINS) FOR WIDESPREAD PRECIPITATION. HIGHS WILL REMAIN IN THE
40S TO LOW 50S. WHILE THE EXACT TIMING AND INTENSITY OF THIS
SYSTEM REMAINS UNCERTAIN, MODELS ARE CONTINUING TO COME INTO
BETTER AGREEMENT, AND THERE IS CURRENTLY A 20-50% CHANCE OF MORE
THAN 0.25" OF RAIN AND SWE OVER THE PLAINS, HIGHEST OVER SOUTH
CENTRAL MONTANA. DURING THE OVERNIGHT HOURS, WHEN LOWS ARE IN THE
20S TO LOW 30S, SOME OF THIS PRECIPITATION MAY FALL AS SNOW OVER
THE PLAINS. CURRENTLY, THERE IS A 10-30% CHANCE FOR AT LEAST 0.1"
OF SNOW OVER THE PLAINS. ABOVE 7,000 FT, THERE IS A 40-60% CHANCE
FOR AT LEAST 4" OF SNOW.
FOR THE END OF THE WORK WEEK, UPPER LEVEL SOUTHWEST FLOW SETS UP,
ALLOWING FOR OCCASIONAL ROUNDS OF PRECIPITATION TO CONTINUE.
ARCHER
AVIATION
06Z DISCUSSION. AREAS OF LIGHT RAIN/WET SNOW CONTINUE TO TRACK
EASTWARD AND WILL TAPER OFF EARLY THIS MORNING, ENDING BEFORE 12Z.
MVFR CEILINGS HAVE SPREAD ACROSS THE EAST AND WILL LINGER INTO
THE 12-15Z TIME FRAME. ONCE THE LOW CLOUDS DISSIPATE, VFR WILL
PREVAIL THROUGH TODAY AND TONIGHT. BREEZY NW WINDS WITH GUSTS OF
20-35 KNOTS (MAINLY EAST OF KBIL) WILL SLOWLY DECREASE THROUGH THE
MORNING. EXPECT MUCH LIGHTER WINDS (AND A SHIFT TO EASTERLY) THIS
AFTERNOON. JKL
PRELIMINARY POINT TEMP/POPS
TDY SUN MON TUE WED THU FRI
-------------------------------------------------------
BIL 051 028/048 032/052 033/054 035/054 030/049 031/050
0/U 00/U 00/B 13/W 41/B 11/B 11/B
LVM 046 022/046 022/051 027/050 025/051 024/050 025/052
0/U 00/U 00/B 26/W 41/B 21/B 22/W
HDN 054 024/054 031/057 030/055 029/056 025/052 026/052
0/U 00/B 10/B 14/W 41/B 11/B 11/B
MLS 049 028/054 034/048 030/051 032/052 027/050 029/051
0/U 00/B 11/E 04/W 42/W 10/B 11/B
4BQ 049 032/050 034/047 031/054 033/053 029/054 032/054
0/U 03/W 51/E 02/W 32/W 10/B 10/B
BHK 049 022/050 025/044 022/048 026/052 022/052 025/052
0/N 00/B 51/N 12/W 33/W 10/B 11/B
SHR 050 024/052 028/055 027/055 027/055 025/055 026/055
0/U 01/B 20/B 04/W 31/B 11/B 11/B
BYZ WATCHES/WARNINGS/ADVISORIES
MT...NONE.
WY...NONE.
WEATHER.GOV/BILLINGS
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