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Sun Alternating with Storm Systems, Heavy Rain Looms

Posted at 6:07 PM, May 13, 2020
and last updated 2020-05-13 22:12:39-04

It's been a while since Montana has had a completely dry day, and there are a few dry days coming. Temperatures are even going to warm up significantly. However, thunderstorms and eventually a soaking storm will increase the flood potential for Big Sky Country. Thursday will be a drier, warmer and sunnier day. Highs will reach the 60s to low 70s. Clouds will increase through the afternoon close to the Continental Divide with some showers and isolated thunderstorms spilling east. By evening the showers will spread up to near Great Falls and out into central Montana. The next storm will produce clouds and widespread rain for most of Friday. Heavy snow could fall in the mountains and on the Rocky Mountain Front. Temperatures will be held down in the 40s and 50s with the rain, 20 and 30s in the mountains supporting the snow. This storm will clear in time for the weekend. Saturday will be a mostly sunny and warmer day with highs in the 60s and low 70s. The weather will be the nicest we've seen in some time. Sunday will be another warm, spring day with highs reaching the 70s. Isolated thunderstorms will pop in the afternoon, so keep that in mind if you plan on being outside. Scattered strong to severe storms are likely on Monday afternoon with warm temperatures producing more instability. Starting Tuesday, a large low pressure will develop that could bring a period of heavy rain and heavy mountain snow. A few inches of rain are possible, which would create flooding that we have yet to see this year. That storm will continue through Wednesday into Thursday.
Have a great day.
Curtis Grevenitz