Dennis Mattinson
- Indexed articles, last 90 days
- 54
- Latest publication
- Oct 1, 2026
- Outlet visibility, for Sierra Wave: Eastern Sierra News
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- Jul 5, 2026
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Sierra Atmospheric Forecast October 2nd (opens the original)
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by Dennis Mattinson | Oct 1, 2026 | Dennis Weather, Inyo County, Local News, Mono County, Weather | 0 comments Area Forecast Discussion Owens Valley / Mammoth Lakes / Mono County / Death Valley Dennis Mattinson / Sierra Atmospheric Forecaster Large scale ridge over the Western U.S., will dominate our weather thru next week. The only fly in the ointment is a weak trough pushing through our area Sunday and Monday, dropping temps 1° or 3°. None-the-less the aforementioned ridge will keep temps abou
Weather & Atmospheric Forecast October 1st (opens the original)
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by Dennis Mattinson | Sep 30, 2026 | Dennis Weather, Inyo County, Local News, Mono County, Weather | 0 comments Area Forecast Discussion Owens Valley / Mammoth Lakes / Mono County / Death Valley Dennis Mattinson / Weather & Atmospheric Forecaster Fairly strong ridging has moved into our area today. Your temps then will be quite stable thru the upcoming weekend, with H5 heights nearing 596 dm. As the boundary layer slowly dries out, expect humidity levels to lower as well…DMATT Bishop: 91 / 51 Bi
Weather & Atmospheric Forecast September 30th (opens the original)
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by Dennis Mattinson | Sep 29, 2026 | Dennis Weather, Inyo County, Local News, Mono County, Weather | 0 comments Area Forecast Discussion Owens Valley / Mammoth Lakes / Mono County / Death Valley Dennis Mattinson / Weather & Atmospheric Forecaster Upper low that gave us at least cooler, breezier weather, has moved on well to the East. All due to upper level ridging nosing in from the EPAC. We still have breezy weather here and there, particularly over the Crest. With that above-mentioned high pre
Weather & Atmospheric Forecast September 28th (opens the original)
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by Dennis Mattinson | Sep 27, 2026 | Dennis Weather, Inyo County, Local News, Mono County, Rain, Weather | 0 comments Area Forecast Discussion Owens Valley / Mammoth Lakes / Mono County / Death Valley Dennis “Matt” Mattinson / Weather & Atmospheric Forecaster Over the weekend we remained under a dry SW flow. That all began to change as a trough dug along the West Coast Sunday. As it moves inland today, moisture gets advected from Hurricane Odalys. This will bring the possibility of precipitation
Sierra Atmospheric Forecast September 25th (opens the original)
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by Dennis Mattinson | Sep 24, 2026 | Dennis Weather, Inyo County, Local News, Mono County, Weather | 0 comments Area Forecast Discussion Owens Valley / Mammoth Lakes / Mono County / Death Valley Dennis Mattinson / Sierra Atmospheric Forecaster A fairly well defined early Autumn dry cold front has pushed through our Region. No precipitation is expected, as the front will be confined to areas up in Oregon and Washington. However some cooling is expected today thru the weekend. Along with that you
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