A cold front moving north and east is bringing fall-like weather to the region. This morning the atmosphere became unstable enough for thunderstorm development, and nearly 400 lightning reports occurred along the Cascades and across the Klamath Basin. Many of the storms were developing along the mountains, and moving north and east into Klamath County.
At this point, most of the thunderstorm activity has wrapped up, but scattered showers are still developing across the entire viewing area. The wet weather and cloudy conditions will gradually taper off and clear out from west to east today. This will bring clear skies for the overnight hours, following the passing of this cold front. Morning lows are expected to drop near or below freezing in some places of the East Side and Siskiyou County into Wednesday morning. For this reason, a Frost Advisory and Freeze Warning are in place for the overnight hours across the Klamath Basin, Modoc County & South Central Siskiyou County. There is concern for another frost/freeze-like morning Thursday, so there is watch on the morning lows that day as well.
Clear skies will continue through Thursday evening, before our first weathermaker of the season arrives — ironically, just in time for the start of Fall (officially on Sunday). This system will most likely put an end to fire season, and is expected to bring heavy rains to the Coastline and higher terrain, and widespread rain to inland areas Friday and Saturday. Even snow levels will be dropping significantly, which may bring snow to Crater Lake and Mount Shasta.
Meteorologist Alyssa Caroprese