Ocean / Surf Report

Pismo Beach

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

11/22/2017

 SEA/SWELL:

    A 3- to 5-foot west-northwesterly (285-degree, deep-water)
    swell (with an 8- to 15-second period) will arrive along
    our coastline later today, increasing to 5 to 7 feet (with
    a 5- to 14-second period) Thursday into Friday. This swell
    will decrease to 3 to 5 feet Saturday.

    An 8- to 10-foot northwesterly (300-degree, deep-water) swell
    (with a 17- to 19-second period) is forecast along our
    coastline Sunday, increasing to 9 to 11 feet (with a 14- to
    16-second period) on Monday into Tuesday.

    This morning's models are advertising a higher-energy swell
    arriving along our coastline on Nov.30 into Dec. 2. 

  ATMOSPHERIC CONDITION:

    Yesterday saw the San Luis Obispo County Airport reached 
    90-degrees, surpassing the previous high of 88 set in 2002.
    In the North County, Paso Robles reached 81 degrees, breaking
    a record of 79 set in 2015. The Santa Maria Airport hit 87
    degrees, tying a 100-year-old record set back in 1917.

    A strong high-pressure ridge over Central and Southern
    California will continue to produce moderate to fresh (13 to
    24 mph) Santa Lucia (northeasterly) winds during the overnight
    and morning hours. These winds will shift out of the northwest
    during the afternoon hours through Friday. 

    Note: Fresh to strong (19 to 31 mph) and gusty Santa Lucia 
          winds may develop on Friday.

    This condition will produce hazy to clear skies, except for
    variable high-level clouds from time to time.

    However, the biggest story of this Thanksgiving week will
    be record-breaking temperatures; plenty of high-temperature
    records in San Luis Obispo and especially in Paso Robles
    could be broken through Friday as temperatures are
    expected to warm to the low to high-80s.

    Saturday will see the high-pressure ridge responsible for
    the record-breaking temperatures weaken, which will allow
    a cold front to produce increasing southerly winds and
    clouds. This cold front is expected to pass the Central 
    Coast on Sunday with southerly winds and rain showers.
    Rain fall amounts are expected to range a tenth and quarter
    of an inch. The front will also bring a colder air mass back
    to the Central Coast and snow to the Sierra Nevada mountains.
    Snow levels may fall to near 5,000 feet by Monday morning.   

    At this time, strong to gale-force (25 to 38 mph) northerly
    winds are forecast on Monday and strong to gale-force Santa
    Lucia (offshore) winds are expected on Tuesday. This
    condition will produce dry and cooler weather. 

    The longer-range models are advertising a possible shift to
    a wet and unsettled weather pattern during the first week of
    December, but please remember these are long-range charts
    and will probably change.

   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
        64.1°   82.5°      59.4°   77.0°      60.0°    74.0°       

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

    Inland Temperatures, Paso Robles
 
     Actual                 Predicted
        
       Tue     Wed     Thu    Fri    Sat    Sun    Mon    Tue 
      46 81   43 86   45 83  46 80  45 77  46 73  47 66  42 65                       
                                         
    Coastal Valleys Temperatures, San Luis Obispo

       Tue     Wed     Thu    Fri    Sat    Sun    Mon    Tue
      55 90   50 89   52 83  54 81  53 77  54 66  50 64  45 67                   
     
  WINDS:

    A pattern of moderate to fresh (13 to 24 mph) and at times
    gusty Santa Lucia (northeasterly) winds developing during 
    the overnight and morning hours, shifting out of the
    northwest during the afternoon hours will continue
    through Friday.

    Note: Fresh to strong (19 to 31 mph) and gusty Santa Lucia 
          winds may develop on Friday.

    Moderate to fresh (13 to 24 mph) southerly winds are
    forecast on Saturday into Sunday.

    Strong to gale-force (25 to 38 mph) northerly winds are
    forecast on Monday and strong to gale-force Santa
    Lucia (offshore) winds are expected on Tuesday.

  DIABLO CANYON METEOROLOGICAL TOWER WIND DATA:

       Today's Maximum Winds:
   
        Max peak winds:       NE        12.3 mph @  6:14 a.m.
        Max sustained wind:   NE         8.5 mph @  6:14 a.m.

      Yesterday's Maximum Winds:
        
        Max peak winds:       NE        24.8 mph @  3:30 a.m.
        Max sustained wind:   NE        13.4 mph @  3:30 a.m.

  SEAWATER TEMPERATURES:

    Seawater temperatures will range between 55 and 57 degrees
    through Sunday.

  OCEAN CURRENTS:

    A southerly (offshore) flowing current is forecast into Friday,
    becoming a northerly (onshore) flowing current on Saturday
    into Sunday.   

  SEAWATER VISIBILITY:
 
    Seawater visibility was 26 to 28 feet at the Diablo Canyon Intake.

==========================================================================
 24-Hour Ocean Condition Outlook for Wednesday 11/22 to Thursday 11/23

  SWELL:            DIR. NW    HT.  2-4   PER.  8-16    This morning  
  Increasing to:    DIR. WNW   HT.  3-5   PER.  8-15    This afternoon
  Remaining  at:    DIR. WNW   HT.  3-5   PER.  8-14    Tonight

  WINDS:            DIR. NE    SPEED 15-20 + 25         This morning
  Decreasing to:    DIR. NW    SPEED 10-15              This afternoon
  Decreasing to:    DIR. NE    SPEED  5-10              Tonight
==========================================================================
 48-Hour Ocean Condition Outlook for Thursday 11/23 to Friday 11/24

  SWELL:            DIR. WNW   HT.  4-6   PER.  8-14    Thursday morning  
  Increasing to:    DIR. WNW   HT.  5-7   PER.  8-14    Thursday afternoon
  Remaining  at:    DIR. WNW   HT.  5-7   PER.  8-14    Thursday night

  WINDS:            DIR. NE    SPEED 15-20              Thursday morning
  Decreasing to:    DIR. NW    SPEED 10-15              Thursday afternoon
  Increasing to:    DIR. NE    SPEED 20-25 + 30         Thursday night
===========================================================================

 Extended Ocean Condition Outlook:

   Increasing southerly winds are forecast this weekend. 

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

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