textproduct: Glasgow

KEY MESSAGES

- Chances (25%) for scattered showers today.

- Warm and dry conditions will prevail through the end of the week.

DISCUSSION

A shortwave trough will exit the Pacific Northwest and dig over eastern Montana this morning. Ample moisture associated with the trough will result in increased cloud cover and low chances (25%) for scattered showers across northeast Montana today.

Rainfall totals are not anticipated to exceed 0.01" south of Highway 2. North of the highway, rainfall totals have a 15-30% chance of exceeding 0.01", with higher chances concentrated eastward. Locations east of Plentywood have a 15% chance of receiving up to 0.05" of rainfall.

The shortwave trough will exit eastward ahead of an upper-level ridge that will build over Montana tonight. The ridge will persist through the end of the work week, resulting in temperatures above seasonal averages and predominantly dry conditions through Friday.

FORECAST CONFIDENCE & DEVIATIONS:

- Increased PoPs slightly above initial NBM guidance.

- Confidence in widespread low rain totals is high (80%). Confidence in localized higher amounts is lower (30%).

DON

AVIATION

LAST UPDATED: 0600Z.

FLIGHT CAT RANGE: VFR.

DISCUSSION: Low- to mid-level ceilings will lift and scatter out by late afternoon to early evening.

WIND: Light and variable winds will become west to northwest this afternoon before becoming light and variable again by this evening.

LLWS: Wind shear over KGDV between 14Z and 18Z. Much of the LLWS this morning will be relegated to the west of terminal sites.

GGW WATCHES/WARNINGS/ADVISORIES

None.