Thunderstorms Back in the Forecast

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A weak frontal boundary is stalled over the are this morning bringing a few high clouds inland and a marine layer push at the coast. This system will push inland today knocking temperatures a few degrees from yesterday through tomorrow. With high pressure over the Southwest, flow around that system will filter in more moisture into the region and thus there’s a slight chance for isolated thunderstorms this afternoon and evening. The best chance will be at the higher elevations as well as west Siskiyou county, Klamath and Lake counties. Thunderstorms could form in Siskiyou county and push north into southern Oregon west side valleys so I’m keeping a slight chance for thunderstorms here as well.

As for smoke this weekend, most of the smoke from the southern Oregon fires have stayed relatively close to where the fires are burning, while the Siskiyou county fires are burning more actively and smoke plumes are reaching into the higher atmosphere and getting caught up in the jetstream and filtering into southern Oregon, mainly east of the Rogue Valley. Smoke will stay east of the southern Oregon fires this weekend, and will filter more into the Rogue Valley in the afternoons.

Tomorrow another slight chance for thunderstorms along and east of the Cascades, then the upper low becomes cut-off from the jetstream and moves south to Central California. The track of this storm will be where we thunderstorms develop next week. For now, the most active thunderstorm coverage will be over northern California, but cut-off lows are notoriously not handled well by weather models, so this may change as we head into next week. Stay tuned to Newswatch12 for the latest on this thunderstorm threat.

Thanks for logging on and have a wonderful weekend!

Meteorologist Megan Parry