Author Archive | Dennis Mattinson

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Dennis Mattinson, Weather 08-15-2022

The Owens Valley / Mammoth Lakes Dennis Mattinson, Weather and Atmospheric Forecaster Sierra Wave Media / KSRW-FM 92.5   MON AUG 15 2022    After a few cumulus build-ups atop the White Mtns over the weekend, storm chances begin to expand today, with the possibility of hybrid wet/dry T-storms. By Tuesday a clockwise flow around the […]

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Sunny day weather

Dennis Mattinson, Weather, Weekend 08-12-2022 to 08-14-2022

Owens Valley / Mammoth Lakes Dennis Mattinson Weather Forecaster Sierra Wave Media / KSRW-FM 92.5  FRI AUG 12  2022   Our dry pattern looks to persist thru the weekend, then low pressure off the coast finally pulls away and that leaves the 4 Corners high the dominant weather player. So by next Monday afternoon moisture begins to appear, bringing a 20% […]

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Owens Valley River Aquaduct

Dennis Mattinson, Weather 08-09-2022

The Owens Valley / Mammoth Lakes  Dennis Mattinson, Weather and Atmospheric Forecaster Sierra Wave Media / KSRW-FM 92.5    TUE AUG 09 2022   An area of low pressure along the Oregon / NORCAL coast and high pressure over the Intermountain region, continues to advect deep moisture into our Forecast Area. So PWATs of an inch or greater […]

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Photo by Khanthong Connie Snyder

Dennis Mattinson, Weather 6-28-2022

The Owens Valley / Mammoth Lakes Dennis Mattinson, Weather and Atmospheric Forecaster Sierra Wave Media / KSRW-FM 92.5   Tue Jun 28 2022 Yesterday was warm (the warmest of the week), today a little cooler (but not much), then a slight cooling trend for the rest of the week. Brought to you courtesy of a trough rolling through the PACNW. […]

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Dennis Mattinson, weather 06-27-2022

The Owens Valley / Mammoth Lakes Dennis Mattinson, Weather and Atmospheric Forecaster Sierra Wave Media / KSRW-FM 92.5   Monday Jun 27 2022    Continued warming today, as high pressure amplifies over our region. By Tuesday low pressure moving through the PACNW will suppress the ridge and knock down those temps a bit, while kicking up […]

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Downtown Bishop

Dennis Mattinson, Weather 06-24-2022

Owens Valley / Mammoth Lakes Dennis Mattinson Sierra Wave Media / KSRW-FM 92.5  Fri Jun 24 2022 Looking at thunderstorm chances today and over the weekend, the low that’s been pushing moisture into our area quickly deteriorates, getting enveloped into Westerlies and a building ridge over the Four Corners region. This will in effect trap moisture under that building […]

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weather clear mostly sunny skies

Dennis Mattinson, Weather 06-23-2022

Owens Valley / Mammoth Lakes Dennis Mattinson / Weather and Atmospheric Forecaster Sierra Wave Media / Radio 92.5 FM  Thu Jun 23 2022    An area of high pressure will grow closer to Four Corners, while a closed low off the CENCA Coast moves inland today. With our area in between these two forces, we will see a […]

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cloudy with rain and sunshine

Dennis Mattinson, Weather 06-22-2022

Owens Valley / Mammoth Lakes Dennis Mattinson / Weather and Atmospheric Forecaster Sierra Wave Media / Radio 92.5 FM    Wed Jun 22 2022  A cut-off low off the CA Coast will advect a plume of moisture (with a Southerly flow) across Sierra today. A shallow ridge moving over the Four Corners Area Thursday will keep that […]

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Dennis Mattinson, Weather 06-21-2022

The Owens Valley / Mammoth Lakes Dennis Mattinson, Weather and Atmospheric Forecaster Sierra Wave Media / KSRW-FM 92.5 Tue Jun 21 2022 Today is the First Day of Summer. So brief tranquil weather looks likely today, with warming temperatures from high pressure over Southern Plains. By Wednesday, we transition into a moderate moonsoonal pattern. A weak cut-off […]

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Dennis Mattinson, Weather 06-20-2022

The Owens Valley / Mammoth Lakes Dennis Mattinson, Weather and Atmospheric Forecaster Sierra Wave Media / KSRW-FM 92.5    Monday Jun 20 2022  A large cyclonic vortex (988 mb) off the Northern California coast moving inland, brought atypical weather for mid-June thru Saturday. So both very windy weather (14.5 mb surface pressure gradient) and cooler temperatures (some 5 […]

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University Peak, south and west of Independence in the Sierra.  Photo by Andrew Kirk

Dennis Mattinson Weather 6-17-2022

  Owens Valley / Mammoth LakesDennis Mattinson Sierra Wave Media / KSRW-FM 92.5  Fri Jun 17 2022 As we head into Friday and the upcoming weekend, the overall synoptic pattern will go into an amplification phase, with a deep -2.5 Sigma trough just off the West Coast and an anomalous +2 Sigma ridge located over the Central […]

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WX

Dennis Mattinson Weather 06-16-2022

Owens Valley / Mammoth Lakes Dennis Mattinson / Weather and Atmospheric Forecaster Sierra Wave Media / Radio 92.5 FM  Thu Jun 16 2022    High pressure remains strong today, then it’s kicked East by an incoming, high amplitude West Coast trof Friday. So expect hot conditions in our Forecast Area today with cooler and windier conditions on Friday. How windy Friday? […]

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