textproduct: Missoula

DISCUSSION

KEY MESSAGES:

- Shower and thunderstorm activity will continue each afternoon through Tuesday.

- Warming and drying latter part of next week under a ridge of high pressure.

The Northern Rockies will continue to be impacted by afternoon showers and thunderstorms. Once again these storms will be capable of moderate to heavy rain, small hail and lightning. The shower activity will linger into the evening hours then diminish after sunset.

A weak disturbance is still on track to move through the region on Tuesday causing a slight increase in afternoon winds. This disturbance will also be the catalyst for another round of showers and thunderstorms across the Northern Rockies during the afternoon and evening hours.

A ridge of high pressure builds over the region Wednesday through the end of the week causing a warming and drying trend. Temperatures are anticipated to be around 10 degrees above average by Thursday and Friday. Then this weekend a disturbance will track across the Pacific Northwest into the Northern Rockies bringing cooler air, increased winds and more convection.

AVIATION

Yesterday's precipitation is once again causing the development of patchy fog and low stratus. KGPI has already developed fog this morning and will continue to be impacted by low visibility through late morning. The high level clouds are limiting the overall extent of the fog and stratus, but all terminals could still be impacted this morning. More storms are expected to develop across the Northern Rockies this afternoon causing moderate to heavy rain, small hail and lightning. Once again all the terminals have the potential of being impacted by the storms today.

MSO WATCHES/WARNINGS/ADVISORIES

MT...None. ID...None.