Updates from April, 2017 Toggle Comment Threads | Keyboard Shortcuts

  • Dennis 5:08 AM on April 21, 2017 Permalink | Reply  

    FORECAST 21-APR-2017 

    AREA FORECAST: Owens Valley / Mammoth Lakes / Mono County
    FROM: Dennis “Matt” Mattinson, Weather and Atmospheric Forecaster
    FOR: Sierra Wave Media / Eastern Sierra News / sierrawave.net / KSRW 92.5 FM / TV- 3 / 395travel.com 

     
    FRI APR 21 2017
     
    WEATHER DISCUSSION:
    Fair and warmer thru the weekend as a ridge begins building onto the West Coast. Temperatures should be quite comfortable with lighter winds. On Sunday a weak system brushes the PACNW and should have little effect on our weather, except some cooling. The weak system does shift the ridge eastward, setting the stage for a few fast moving shortwaves next week. Timing of each of these is not particularly accurate right now, so stay tuned to Mondays forecast for updates. -DMATT-
     
    SHORT TERM FORECAST:

    Owens Valley:
    Today: Sunny. 78 F / 42 F. N 5 – 10 mph.
    Saturday / Sunday: Sunny —> partly cloudy each day. 82 F / 44 F. SE 5 – 10 mph.

    Town of Mammoth Lakes:

    Today: Sunny. 53 F / 36 F. SW 10 mph.
    Saturday / Sunday: Sunny Saturday & Sunday. 55 F / 35 F. SW 5 – 15 mph.

    Mono County:

    Today: Sunny. 59 – 69 F / 30 – 40 F. N 10 mph.
    Saturday / Sunday: Sunny. 62 – 72 F  / 31 – 41  F. SW 10 – 15 mph G 30.


    DENNIS’ PROBABILITY OF PRECIPITATION (PoPs); 
     
    10% – Unlikely, Isolated
    20% – Slight Chance, Scattered
    30 – 50% – Chance
    60 – 80% – Likely

    90 – 100% – Virtually Certain
     
  • Dennis 5:12 AM on April 20, 2017 Permalink | Reply  

    FORECAST 20-APR-2017 

    AREA FORECAST: Owens Valley / Mammoth Lakes / Mono County
    FROM: Dennis “Matt” Mattinson, Weather and Atmospheric Forecaster
    FOR: Sierra Wave Media / Eastern Sierra News / sierrawave.net / KSRW 92.5 FM / TV- 3 / 395travel.com 

     
    THU APR 20 2017
     
    WEATHER DISCUSSION:
     
    Latest update from Mammoth Mountain is 610 inches of snow for the season. WOW! Today weather turns quieter, as an actual ridge of high pressure builds across the region. Another WOW! This will bring on drying and warming, Friday thru the weekend. Temps look to hit 80 by Sunday in the Owens Valley and 63 – 73 in Mono County. Even though the primary moisture feed is now aimed at the PACNW, a few weaker and shorter batches of precipitation are still possible next week. -DMATT-
    SHORT TERM FORECAST:

    Owens Valley:
    Today: Sunny. 75 F / 40 F. NW 5 – 10 mph.
    Friday: Sunny. 78 F / 45 F. N 5 mph.

    Town of Mammoth Lakes:

    Today: Sunny. 48 F / 28 F. W 10 – 15 mph.
    Friday: Sunny. 53 F / 36 F. W 10 mph.

    Mono County:

    Today: Mostly sunny. 51 – 61 F / 21 – 31 F. SW 10 – 15 mph.
    Friday: Sunny. 59 – 69 F  / 30 – 40 F. NW 10 mph.


    DENNIS’ PROBABILITY OF PRECIPITATION (PoPs); 
     
    10% – Unlikely, Isolated
    20% – Slight Chance, Scattered
    30 – 50% – Chance
    60 – 80% – Likely

    90 – 100% – Virtually Certain
     
  • Dennis 5:20 AM on April 19, 2017 Permalink | Reply  

    FORECAST 19-APR-2017 

    AREA FORECAST: Owens Valley / Mammoth Lakes / Mono County
    FROM: Dennis “Matt” Mattinson, Weather and Atmospheric Forecaster
    FOR: Sierra Wave Media / Eastern Sierra News / sierrawave.net / KSRW 92.5 FM / TV- 3 / 395travel.com 

     
    WED APR 19 2017
     
    WEATHER DISCUSSION: 
     
    As of yesterday the Main Lodge at Mammoth Mountain is at 608 inches of snow for the season. Weak ridging today for dry weather then Thursday sees weak system bringing rain / snow to Yosemite northward. Its a fast mover, so expect breezy to windy conditions depending where you are. Friday a high amplitude ridge builds in thru the weekend. Early next week yet another fast moving system clips Mono County. More on this in tomorrows forecast. -DMATT-
    SHORT TERM FORECAST:

    Owens Valley:
    Today: Mostly sunny. 73 F / 40 F. N 5 mph.
    Thursday: Sunny. 74 F / 40 F. NW 5 – 15 mph G 30.

    Town of Mammoth Lakes:

    Today: Mostly sunny —> partly cloudy. 54 F / 29 F. SW 5 – 15 mph.
    Thursday: Mostly sunny. 52 F / 28 F. SW 10 – 15 mph.

    Mono County:

    Today: 20% PM rain & snow. 55 – 65 F / 26 – 36. SW 10 – 15 mph G 30.
    Thursday: Partly cloudy —> clearing. 52 – 62 F  / 21 – 31 F. W 10 – 15 mph.


    DENNIS’ PROBABILITY OF PRECIPITATION (PoPs); 
     
    10% – Unlikely, Isolated
    20% – Slight Chance, Scattered
    30 – 50% – Chance
    60 – 80% – Likely

    90 – 100% – Virtually Certain
     
  • Dennis 5:17 AM on April 18, 2017 Permalink | Reply  

    FORECAST 18-APR-2017 

    AREA FORECAST: Owens Valley / Mammoth Lakes / Mono County
    FROM: Dennis “Matt” Mattinson, Weather and Atmospheric Forecaster
    FOR: Sierra Wave Media / Eastern Sierra News / sierrawave.net / KSRW 92.5 FM / TV- 3 / 395travel.com 

     
    TUE APR 18 2017
     
    WEATHER DISCUSSION:
     
    Is the real Spring just around the corner? As the weekend approaches, the upper jet (storm track) begin to shift northward. All of this should bring on a warm Spring weekend. In the mean time its going to be breezy to windy off / on this week, as a few systems rapidly kick thru the area. So a system today then a break Wednesday, followed by another on Thursday. Friday looks to be sunny, leading into a warmer weekend, as a stronger ridge settles in over the area. So temps should run some 6 – 12 degrees above climo. But, even though the main storm track will be pushed to the north, its still close enough to allow a few possible weak systems in next week. Stay tuned. -DMATT-
    SHORT TERM FORECAST:

    Owens Valley:
    Today: 60% rain showers clearing. 70 F / 36 F. W 5 – 15 mph G 25.
    Wednesday: Mostly sunny —> partly cloudy. 74 F / 40 F. N 5 mph.

    Town of Mammoth Lakes:

    Today: 100% snow showers —> 20%. 43 F / 25 F. SW 10 – 15 mph G 25.
    Wednesday: Mostly sunny —> partly cloudy. 54 F / 28 F. SW 5 – 10 mph.

    Mono County:

    Today: Rain & snow. 47 – 57 F / 20 – 30 F. W 10 – 20 mph G 40.
    Wednesday: Mostly sunny —> cloudy. 55 – 65 F  / 25 – 35 F. SW 10 – 15 mph.


    DENNIS’ PROBABILITY OF PRECIPITATION (PoPs): 
     
    10% – Unlikely, Isolated
    20% – Slight Chance, Scattered
    30 – 50% – Chance
    60 – 80% – Likely

    90 – 100% – Virtually Certain
     
    • L 8:54 AM on April 18, 2017 Permalink | Reply

      Rooting for 600+ inches at Mammoth! And then a big heat wave. Keep us posted on snow depth, and would be helpful to know about what elevation snow-free is (south and west exposures).

  • Dennis 5:25 AM on April 17, 2017 Permalink | Reply  

    FORECAST 17-APR-2017 

    AREA FORECAST: Owens Valley / Mammoth Lakes / Mono County
    FROM: Dennis “Matt” Mattinson, Weather and Atmospheric Forecaster
    FOR: Sierra Wave Media / Eastern Sierra News / sierrawave.net / KSRW 92.5 FM / TV- 3 / 395travel.com 

     
    MON APR 17 2017
     
    WEATHER DISCUSSION:
     
    A weather system hit the area last night. It provided a quick hit of upslope snowfall in the Sierra. Today showers have lightened up in Mono County, before another quick hitter late today into Tuesday. Last system, another fast mover, kicks thru Wednesday night into Thursday morning. We will have breezy to windy conditions with each of these systems. Finally a stronger ridge over the EPAC builds in for dry and warmer weather Friday into the weekend. -DMATT-
    SHORT TERM FORECAST:
    Owens Valley:

    Today: 20% pm showers. 75 F / 46 F. SW 5 – 10 mph.
    Tuesday: 60% showers. 71 F / 38 F. N 5 mph.
    Town of Mammoth Lakes:

    Today: 40% snow —> 80%. 49 F / 34 F. SW 10 – 20 mph.
    Tuesday: 70% snow —> 20%. 42 F / 25 F. S 10 – 15 mph.

    Mono County:

    Today: 40% snow —> 90%. 54 – 64 F / 33 – 43 F. SW 10 – 15 mph G 30.
    Tuesday: 70% snow showers. 47 – 57 F  / 20 – 30 F. SW 10 – 15 mph G 30.


    DENNIS’ PROBABILITY OF PRECIPITATION (PoPs); 
     
    10% – Unlikely, Isolated
    20% – Slight Chance, Scattered
    30 – 50% – Chance
    60 – 80% – Likely

    90 – 100% – Virtually Certain
     
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