687
FXUS65 KGGW 180734
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
134 AM MDT Sat May 18 2024

.DISCUSSION...

KEY MESSAGES:

- Current system moves out this morning, next system moves in
  Sunday morning.

- Wind gusts to 40 mph are expected today, so a Lake Wind Advisory
  product is occurring from now through 9PM Saturday.

- Unsettled pattern continues with daily rain and thunderstorm
  chances for this upcoming week

WEATHER PATTERN OVERVIEW:

Trough that brought us yesterday`s thunderstorms and this
morning`s rain will move off to the northeast today with brief and
fast moving ridging allowing for pleasant, but breezy conditions
for the rest of this afternoon. The Lake Wind Advisory will be
maintained as it is.

Next trough and cold front rotates through on Sunday bringing
more scattered showers to the region. The cold air advection
behind the front will bring below average temperatures for Monday
and Tuesday before a warming trend commences on Wednesday.

Overall continued troughing will keep daily shower and
thunderstorm chances in the picture throughout most of next week.

CONFIDENCE AND POTENTIAL DEVIATIONS FROM BASE FORECAST:

High confidence of breezy conditions continuing this afternoon as
well as clearing skies.

High confidence of cooler and below average temperatures moving
in behind the front Sunday and lasting into Tuesday.

Medium confidence (30-60%) of measurable precipitation Sunday and
Monday.

-Bernhart



&&

.AVIATION...

LAST UPDATED: 0830Z

FLIGHT CONDITIONS: MVFR possible early AM, VFR mid AM afterwards

DISCUSSION: Rain showers should be ending by 15Z, partly cloudy
skies rest of the day. Next chance for rain moves in on Sunday
morning.

WINDS: W-NW 15-25kts, gusts to 30kts, light and variable after
06Z.

-Bernhart


&&

.GGW WATCHES/WARNINGS/ADVISORIES...
Lake Wind Advisory until 9 PM MDT this evening for Central and
Southeast Phillips-Central and Southern Valley-Garfield-McCone-
Petroleum.

&&

$$

weather.gov/glasgow