Area Forecast Discussion
Issued by NWS Glasgow, MT

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FXUS65 KGGW 260815

Area Forecast Discussion
National Weather Service Glasgow MT
215 AM MDT Tue Oct 26 2021


An area of rain showers will move east through NE Montana today on
the back side of a cold front. Most areas will see some light rain
at some point during the day with this system. Drier air will move
into the western zones in the late morning or early afternoon
ending the rain chances there while the rain will exit the eastern
end of the state around sunset.

Skies will clear tonight. A dry upper trough will pass through the
area on Wednesday with gusty west winds. Models indicate that
winds will increase during the day with tight surface gradient.
700 mb winds will be around 40-45kt during the afternoon and
evening which is likely not strong enough High Wind Warning even
if these winds mix down. Ensemble spreads have max gust below
60mph with a mean around 45 mph. For now will hold off on any
High Wind Watch given this situation. A Lake Wind Advisory is
expected for Fort Peck Lake on Wednesday.

Thursday and Friday will see an upper ridge with warmer
temperatures and dry weather. Some locations will have highs near
70 on Friday.

A cold front is expected Friday Night that could bring a chance of
showers to parts of the area. Colder temperatures will prevail
over the weekend with temperatures that will be somewhat below
normal on Sunday and early next week.




FLIGHT CAT: VFR - MVFR/Fuel Loading today, VFR tonight.

DISCUSSION: Rain showers will move across the area today behind a
cold front that moved through the area overnight. The rain showers
will exit the state around 00Z today. MVFR ceilings will impact at
various times today with the west seeing them early and the east
having the low clouds later. Low clouds should clear KGGW and KOLF
by 18z and KGDV and KSDY around 22 or 23z. Visibility is not
expected to become restricted at the terminals but higher
elevations of the Big Sheeps and Opheim Plateau could easily
experience fog in the form of cloud- to- ground. Mid clouds are
expected after the low clouds clear today and skies will clear
from west to east tonight.
WIND: NW around 10 knots today and west tonight 5 to 10 knots.

LLWS: Low level wind shear will be possible across the Yellow
stone Valley at times tonight.




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