188
FXUS65 KGGW 180626
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
1226 AM MDT WED MAR 18 2026
KEY MESSAGES
- STRONG CHINOOK WINDS CONTINUE AT TIMES WITH A HIGH WIND WARNING
FOR THE LITTLE ROCKIES THROUGH EARLY THIS MORNING.
- WELL ABOVE NORMAL TEMPERATURES CONTINUE THROUGH FRIDAY WITH SOME
RECORDS CHALLENGED.
- TEMPERATURES WILL COOL CLOSER TO NORMAL THIS WEEKEND.
DISCUSSION
WEATHER PATTERN OVERVIEW:
A CHINOOK PATTERN OVER THE AREA HAS ALLOWED STRONG TO INTENSE
WINDS TO COME UP SINCE EARLY TUESDAY AND PERSIST TONIGHT AROUND
THE LITTLE ROCKIES. BASED ON LATEST TRENDS AND HREF GUIDANCE, THE
HIGH WIND WARNING FOR SW PHILLIPS COUNTY HAS BEEN EXTENDED AGAIN
UNTIL 6 AM WEDNESDAY WITH PERSISTENT WINDS OVER 40 MPH AND GUSTS
AROUND 60 MPH. GUSTS OF 40-50 MPH CONTINUE TO BE LIKELY WITH THIS
CHINOOK FOR THE NEXT FEW DAYS, BUT PROBABILITIES ARE CURRENTLY LOW
FOR HIGH WINDS BEING REALIZED AGAIN. A WEAK STATIONARY FRONT IS
EXPECTED TO MAKE ITS WAY INTO THE AREA THIS MORNING, SO THERE ARE
CHANCES FOR RAIN SHOWERS BETWEEN 6 AM AND 3 PM. RAIN AMOUNTS LOOK
MINIMAL, LESS THAN A FEW HUNDREDTHS.
MOST SNOW HAS ALREADY MELTED FROM THE RECENT SNOWSTORM, THOUGH
SMALL STREAMS (PETROLEUM COUNTY IN PARTICULAR) WILL NEED TO BE
CLOSELY MONITORED FOR HIGH WATER AND FLOODING CONCERNS. THE BROAD
UPPER LEVEL RIDGE IN PLACE REMAINS INTO FRIDAY BEFORE STARTING TO
BREAK DOWN, MAINTAINING THE UNUSUAL WARM AND DRY PATTERN. THE
NEXT CHANCE FOR ANY LIGHT PRECIPITATION WILL BE OVER THE WEEKEND
ALONG WITH A MODERATION IN TEMPERATURES.
FORECAST CONFIDENCE & DEVIATIONS:
DEVIATIONS WERE MADE TO INCREASE THE CHINOOK WINDS THOUGH
THURSDAY FOR SOME LOCATIONS BY BLENDING WITH SOME HIGHER
RESOLUTION GUIDANCE. ALONG WITH THIS, TEMPERATURES WERE NUDGED UP
CLOSE TO THE NBM 50TH PERCENTILE THROUGH FRIDAY.
THERE IS MODERATE TO HIGH CONFIDENCE FOR GUSTY WINDS TO REMAIN
BELOW HIGH WIND CRITERIA THE REST OF THE WEEK. THERE IS HIGH
CONFIDENCE IN TEMPERATURES THROUGH THE WEEKEND.
AVIATION
LAST UPDATE: 0500Z
FLIGHT CATEGORY: VFR
DISCUSSION: SOME CHINOOK MID TO HIGH LEVEL CLOUDS ARE EXPECTED TO
CONTINUE MOVING THROUGH THE AREA TODAY INTO TONIGHT. A WEAK
STATIONARY FRONT IS EXPECTED TO CREEP INTO THE AREA TOMORROW
MORNING, SO THERE IS A SLIGHT CHANCE FOR RAIN SHOWERS BETWEEN 12Z
AND 21Z. THERE IS MODERATE TO HIGH CONFIDENCE THAT VFR CEILINGS
WILL REMAIN IN PLACE THOUGH.
LLWS: NORTHWESTERLY LOW LEVEL WIND SHEAR IS EXPECTED ACROSS THE
TERMINALS UNTIL AROUND 16Z, RETURNING AFTER 01Z.
WIND: WEST AT 10-15 KNOTS, BECOMING 15-25 KNOTS WITH GUSTS TO 35
KNOTS AFTER 17Z.
GGW WATCHES/WARNINGS/ADVISORIES
HIGH WIND WARNING UNTIL 6 AM MDT EARLY THIS MORNING FOR
SOUTHWEST PHILLIPS.
WEATHER.GOV/GLASGOW
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page