textproduct: Glasgow
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Warm and dry weather conditions will prevail for the most part today.
- Hot and dry weather are expected to begin with on Sunday before the next cold front brings late day thunderstorms to the area.
- Monday will be dry and cooler before frequent chances for showers and thunderstorms return Monday night and continue for several days.
DISCUSSION
WEATHER PATTERN OVERVIEW:
Shortwave ridge will allow for a mainly dry with warm temperatures today. However, an unstable atmosphere will remain over the area today and a few hi-res models are hinting that there could be an isolated shower or thunderstorm. Confidence is too low at this point to mention in the forecast.
Sunday will be warmer than today in most areas. Late day temperatures should reach the mid to upper 80s for most locations with the southeast in the lower to mid 90s. Ahead of an approaching cold front, the Yellowstone River Valley will see some compressional warming and highs there should be in the mid 90s. In addition, this frontal passage will bring chances for showers and thunderstorm mainly Sunday evening.
Monday will be somewhat cooler and dry with upper ridging before the next trough tracks in from the west during the midweek with the next chances for showers and thunderstorms.
FORECAST CONFIDENCE & DEVIATIONS:
NBM was largely used for this forecast cycle. Confidence is also high on warm and mostly dry weather today with fairly strong ensemble consensus for the next system approaching late Sunday and the trough pattern evolving by the middle of next week despite some timing differences.
Low confidence on an isolated shower or thunderstorm this afternoon or evening.
AVIATION
LAST UPDATED: 0600Z Saturday July 4th.
FLIGHT CATEGORY: VFR.
DISCUSSION: Mid and high clouds will clear early this morning. Skies will be mostly clear this morning and daytime cumulus is expected this afternoon. A few of these cumulus may build into cumulonimbus with an isolated shower or thunderstorm this afternoon or early evening.
WIND: Light and variable winds this morning becoming SW 5 to 10 knots this afternoon and light and variable this evening.
GGW WATCHES/WARNINGS/ADVISORIES
None.
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