Pismo Beach Ocean / Surf Report

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

2/18/2018

 SEA/SWELL:

    Increasing northwesterly winds will generate 6- to 8-foot
    northwesterly (320-degree, deep-water) sea and swell (with
    a 5- to 14-second period) along our coastline this afternoon,
    increasing to 11 to 13 feet (with a 7- to 12-second period)
    on Monday. 

    An 8- to 10-foot northwesterly (310-degree, deep-water) sea
    and swell (with a 7- to 13-second period) is forecast along
    our coastline on Tuesday, decreasing to 4 to 6 feet (with a
    7- to 16-second period) on Wednesday. 

    Increasing northwesterly (320-degree, shallow-water) seas
    combined with a long-period west northwesterly (290-degree,
    deep-water) swell will develop along our coastline on Thursday
    onto Friday. This sea and swell will reach 5- to 7-feet
    (with a 6- to 22-second period) on Thursday, increasing
    to 8 to 10 feet (with a 7- to 18-second period) on Friday.

  ATMOSPHERIC CONDITION:

    An upper-level low pressure system and associated cold front
    will drop from the north into the Central Coast later today 
    into Monday. This upper-level low will generate rain showers
    throughout the Central Coast on Monday, with the greatest
    amount of measurable precipitation along the northwesterly
    facing hillsides along the coastline near Los Osos. Total
    rainfall amounts are forecast to range between a tenth and
    a quarter of an inch. A dusting of snow is forecast in coastal
    mountain ranges with snow levels rapidly falling down to
    near 1,500 feet by Monday. Highway 101 over the Cuesta Grade
    reaches 1,522 feet. 

    This low pressure system will set up a steep pressure gradient
    along the California coastline Sunday afternoon through Monday.
    This pressure gradient will produce moderate gale-force to fresh
    gale-force (32 to 46 mph) northwesterly winds along the coastline
    this afternoon into Presidents' Day. At this time, the 
    strongest winds will probably occur Monday afternoon with gust
    near 55 mph along the coastline. 

    The upper-level winds (jet stream) will travel from Canada
    southward into California "Yukon Express" on Presidents' Day
    through Wednesday. These winds will usher in a cold air mass
    into the Central Coast. In fact, the coldest air temperatures
    of the winter will develop Monday night into Tuesday morning
    with the North County dropping to the low 20s and the coastal
    valleys into the low 30s. Minimum temperatures along the beaches
    will range between the mid-the high 30s. Maximum temperatures
    on Monday into Wednesday will only reach the mid-50s under mostly
    clear to partly cloudy skies. However, the winds will make it
    feel frigid. 

    A Gulf of Alaska cold front forecast to pass to the Central Coast
    on Thursday morning with gentle southerly winds and rain showers.
    This system is forecast to produce between a quarter and a third 
    of an inch of rain. Snow levels with this system will drop to
    2,000 feet. Strong to gale-force (25 to 38 mph) northwesterly
    winds and cool temperatures will follow Thursday afternoon into
    Friday. The long-range models are advertising a wet-weather
    pattern developing by the end of February.

   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
        55.9°   63.3°      51.4°   55.0°      49.0°    54.0°       

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

    Inland Temperatures, Paso Robles
 
     Actual                 Predicted
         
       Sat      Sun     Mon    Tue    Wed    Thu    Fri    Sat
      28 75    33 63   32 53  21 55  23 58  31 55  32 57  28 58     
                                         
    Coastal Valleys Temperatures, San Luis Obispo

       Sat      Sun     Mon    Tue    Wed    Thu    Fri    Sat
      41 75    37 64   40 55  30 58  33 59  38 56  36 60  38 62 
      
  WINDS:

    Moderate gale-force to fresh gale-force (32 to 46 mph) 
    northwesterly winds are forecast this afternoon into Monday.
    At this time, wind gust could reach near 55 mph along the 
    coastline on Monday afternoon. 

    A pattern of moderate to fresh (13 to 24 mph) Santa Lucia 
    (northeasterly) winds developing during the night and morning
    hours, shifting out of the northwest and increasing to fresh 
    to strong (19 to 31 mph) levels during the afternoon hours
    will start Tuesday and will continue through Wednesday.

    Gentle southerly winds are forecast Thursday morning, followed
    by strong to gale-force (25 to 38 mph) northwesterly winds 
    on Thursday afternoon into Saturday. 

  DIABLO CANYON METEOROLOGICAL TOWER WIND DATA:

       Today's Maximum Winds:
   
        Max peak winds:       NW        40.3 mph @   3:30 p.m.
        Max sustained wind:   NW        30.5 mph @   3:30 p.m.

      Yesterday's Maximum Winds:
            
        Max peak winds:       NW        15.3 mph @   3:30 p.m.
        Max sustained wind:   NW        11.8 mph @   3:30 p.m.


  SEAWATER TEMPERATURES:

    Seawater temperatures will range between 55 and 57 degrees
    through today, decreasing to 52 to 54 degrees on Monday into 
    Friday.

  OCEAN CURRENTS:

    A southerly (offshore) flowing current will continue to
    flow southward through Friday.

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

==========================================================================
 24-Hour Ocean Condition Outlook for Sunday 02/18 to Monday 02/19
 
  SEA/SWELL:        DIR. NW    HT.  4-6   PER.  8-15    This morning 
  Increasing to:    DIR. NW    HT.  6-8   PER.  5-14    This afternoon
  Increasing to:    DIR. NW    HT.  7-9   PER.  5-13    Tonight

  WINDS:            DIR. NW    SPEED 10-15              This morning
  Increasing to:    DIR. NW    SPEED 35-40 + 45         This afternoon
  Decreasing to:    DIR. NW    SPEED 25-30 + 40         Tonight
==========================================================================
 48-Hour Ocean Condition Outlook for Monday 02/19 to Tuesday 02/20
 
  SEA/SWELL:        DIR. NW    HT.  8-10  PER.  7-13    Monday morning 
  Increasing to:    DIR. NW    HT. 11-13  PER.  7-12    Monday afternoon
  Decreasing to:    DIR. NW    HT. 10-12  PER.  7-12    Monday night

  WINDS:            DIR. NW    SPEED 25-30 + 40         Monday morning
  Increasing to:    DIR. NW    SPEED 40-45 + 55         Monday afternoon
  Decreasing to:    DIR. NW    SPEED 20-25 + 35         Monday night
===========================================================================

 Extended Ocean Condition Outlook:
  
    The long-range models are advertising a wet-weather pattern
    developing by the end of February. 
   
===========================================================================