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000
FXUS65 KGGW 050944
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
244 AM MST Tue Dec 5 2023

.DISCUSSION...

A warm front will move east across eastern Montana today. There
has been some light rain near the front overnight in central
Montana. Models differ on how much of this rain will reach the
forecast area this morning before it dries out. Will mention a
slight chance of light rain and/or freezing rain this morning
mainly in the western zones. Some areas currently have
temperatures below freezing and with warmer temperatures aloft
would allow for the possibility of freezing rain.

Upper ridge moves into the forecast area today which will bring
record warm temperatures to the western half of the forecast area.
Areas south of Malta and west of Jordan will have highs in the 60s
today while the northeast end of the forecast area will have highs
in the 40s.

With the very warm air aloft tonight and WSW winds, low tonight
will be about as warm as it can be in December with lows in the
30s in most areas and 40s in the SW.

Record highs are likely in many areas on Wednesday with the upper
ridge and very warm air mass still over the area. Glasgow record
high for Dec 6 is 53 and the probability of breaking that record
is around 80 percent. Highs on Wednesday will be in the 50s north
and 60s south.

A shortwave trough moves through the area Thursday and Thursday
night. A cold front with this system will bring a chance of rain
with gusty NW winds. Highs will be in the 40s north and 50s south
on Thursday.

Thursday evening, temperatures cool below freezing in most areas
allowing for a chance of light snow that will continue into
Friday. Highs on Friday will be in the 30s in most areas.

NW flow aloft is expected over the weekend with somewhat above
normal highs in the 30s to mid 40s. A wave in the NW flow aloft
could bring a chance of light snow Sunday and Sunday night.


&&

.AVIATION...

LAST UPDATED: 0945Z, Tuesday morning, Dec. 5th

EXPECTED FLIGHT CATEGORY: Mainly VFR, but brief MVFR is possible
through this morning with isolated precipitation.
DISCUSSION: A warm front will bring some isolated showers this
morning. There will be varying amounts of mid and high clouds
today and tonight.

WIND: SW to SE 5 to 10 knots today and tonight.

&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

weather.gov/glasgow