Ocean / Surf Report

Pismo Beach

Get our updated surf/ocean report and weather report with data provided by the Diablo Canyon Weather Report.

4/24/2017

SEA/SWELL:

    Today’s 6- to 8-foot northwesterly (290-degree, deep-
    water) sea and swell (with a 5- to 13-second period)
    will decrease to 5 to 7 feet (with a 7- to 11-second
    period) on Tuesday into Wednesday.

    A 9- to 11-foot northwesterly (310-degree, deep-water)
    sea and swell (with a 5- to 12-second period) is
    forecast along our coastline on Thursday into Friday.

    A 4- to 6-foot northwesterly (310-degree, deep-
    water) sea and swell (with a 7- to 11-second period)
    is forecast along our coastline on Saturday into next
    Monday.  

    Arriving from the Southern Hemisphere:

    A 1-foot Southern Hemisphere (190-degree, deep-water)
    swell (with a 17- to 19-second period) will arrive
    later on Tuesday, building to 1 to 2 feet (with a 15-
    to 17-second period) on Wednesday into Thursday. 

  ATMOSPHERIC CONDITION:

    The most appropriate way to describe this week’s weather
    is windy.

    A 1,029-millibar area of high pressure about 500 miles
    to the west of the Central Coast is expected to remain
    nearly stationary into Wednesday. This condition will
    produce strong to gale-force (25 to 38 mph) northwesterly
    winds during the afternoon hours today into Wednesday.

    These onshore winds will produce mild temperatures with
    the beaches reaching the 60s, except for the southwest-
    facing beaches of Cayucos and Avila Beach, which will
    hit the mid-70s. The coastal valleys and North County
    will warm to the low- to mid 70s. Variable high-level
    clouds will pass from time to time, while a few areas
    of low clouds and fog are expected to develop along the
    coastline during the overnight hours.

    A dry cold front will move through the Central Coast on
    Wednesday night with partly cloudy skies. More importantly,
    it will produce a steep pressure gradient along the
    California coastline, resulting in moderate gale-force
    to fresh gale-force (32 to 46 mph, with gusts to 55 mph)
    northwesterly winds Thursday into Friday. Windy indeed!

    This area of high pressure is expected to strengthen and
    move eastward over California. Consequently, gusty Santa 
    Lucia (offshore) winds and warmer weather will develop
    throughout the Central Coast this weekend, with daytime
    highs reaching into the 80s. At this time, it’s looking
    like it will be dry for an extended period along the
    Central Coast. 

   Weather graphics and power outage information are available
   at: twitter.com/pge_john.

         Yesterday's          Today's           Tomorrow's
         Min    Max         Min    Max         Min     Max
        51.8°  59.2°       51.3°   61.0°      52.0°    61.0

    PG&E Weather Office in San Francisco predicted temperatures
    for San Luis Obispo County

    Inland Temperatures, Paso Robles 
 
      Actual                 Predicted
   
        Sun      Mon     Tue     Wed    Thu    Fri    Sat    Sun
       49 77    48 71   49 75   45 84  53 77  43 75  40 82  42 88        
                                       
    Coastal Valleys Temperatures, San Luis Obispo       
      
        Sun      Mon     Tue     Wed    Thu    Fri    Sat    Sun
       52 72    51 71   51 70   51 77  52 72  46 72  43 80  47 80       
    
  WINDS:

    A pattern of strong to gale-force (25 to 38 mph with gust
    to 45 mph) northwesterly winds developing during the afternoon
    hours, decreasing during the night and morning hours will
    continue through Wednesday.

    Moderate gale-force to fresh gale-force (32 to 46 mph with 
    gust 55 mph) northwesterly winds are forecast to develop on
    Thursday into Friday.

  DIABLO CANYON METEOROLOGICAL TOWER WIND DATA:

       Today's Maximum Winds:

        Max peak winds:       NW             24.6 mph @  6:45 a.m.
        Max sustained wind:   NW             20.1 mph @  6:45 a.m.

      Yesterday's Maximum Winds:
             
        Max peak winds:       NW             49.2 mph @  5:15 p.m.
        Max sustained wind:   NW             35.8 mph @  4:45 p.m.
  
  SEAWATER TEMPERATURES:

    Seawater temperatures will range between 47 and 49 degrees 
    through Saturday.

  OCEAN CURRENTS: 

    Today's southerly (offshore) flowing current will continue 
    to flow southward through Saturday.

  SEAWATER VISIBILITY:
 
    Seawater visibility was 12 to 14 feet at the Diablo Canyon Intake.

==========================================================================
 24-Hour Ocean Condition Outlook for Monday 04/24 to Tuesday 04/25
    
  SEA/SWELL:        DIR. NW    HT.  6-8   PER.  5-13    This morning  
  Decreasing to:    DIR. NW    HT.  6-8   PER.  5-13    This afternoon
  Remaining  at:    DIR. NW    HT.  6-8   PER.  5-12    Tonight

  WINDS:            DIR. NW    SPEED 15-20 + 25         This morning
  Increasing to:    DIR. NW    SPEED 25-30 + 45         This afternoon
  Decreasing to:    DIR. NW    SPEED 15-20 + 25         Tonight
==========================================================================
 48-Hour Ocean Condition Outlook for Tuesday 04/25 to Wednesday 04/26
    
  SEA/SWELL:        DIR. NW    HT.  5-7   PER.  5-12    Tuesday morning  
  Remaining  at:    DIR. NW    HT.  5-7   PER.  5-11    Tuesday afternoon
  Remaining  at:    DIR. NW    HT.  5-7   PER.  5-11    Tuesday night

 (Combined with:    DIR. SW    HT.  1     PER. 17-19    Tuesday night)

  WINDS:            DIR. NW    SPEED 15-20 + 25         Tuesday morning
  Increasing to:    DIR. NW    SPEED 25-30 + 45         Tuesday afternoon
  Decreasing to:    DIR. NW    SPEED 15-20 + 25         Tuesday night
===========================================================================

 Extended Ocean Condition Outlook:

    Moderate gale-force to fresh gale-force (32 to 46 mph with gust
    55 mph) northwesterly winds are forecast to develop on Thursday
    into Friday.

===========================================================================

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