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.

9/20/2018

   
 SEA/SWELL:

 Today's 4- to 6-foot northwesterly (310-degree, deep-
 water) sea and swell (with a 5- to 12-second period) will
 continue at this height through tonight. 
 
 A 3- to 5-foot northwesterly (290-degree, deep-water) swell
 (with an 8- to 12-second period) will develop along our 
 coastline on Friday into Wednesday. 

 Arriving from the Southern Hemisphere:

 A 1- to 2-foot Southern Hemisphere (210-degree, deep-water)
 swell (with a 15- to 17-second period) will arrive along 
 our coastline on Friday into Sunday.
 
 ATMOSPHERIC CONDITION:

 This morning's Santa Lucia (northeasterly) winds will
 keep the marine layer out to sea. This condition will
 produce clear skies and warmer temperatures, with Paso 
 Robles reaching the mid 90s and San Luis Obispo the mid
 80s. The beaches will be mostly in the 70s.

 An area of low-pressure off the California coastline
 will produce gentle to moderate (8 to 18 mph) winds,
 increasing clouds with areas of fog and drizzle during
 the night and morning hours and cooler temperatures
 starting on Friday and continuing through Sunday.

 High pressure will rebuild into California early week
 for another round of warmer temperatures. Temperatures
 are expected to remain above-average through at least the
 middle of next week with inland valleys reaching the 
 high 90s and coastal valleys the low 80s. 

 A few of the long-range models are indicating a chance
 of rain starting on October 3 and continuing into
 following week. 

 WILDFIRE DANGER RATINGS:

 We are now entering the critical time of year where
 surface fuels are nearing their driest levels and
 atmospheric conditions become favorable to produce
 offshore wind events. 

 Today's fire ratings will reach extreme levels along the
 beaches and very high to extreme levels in the coastal
 valleys. The inland valleys are at very high levels. 

 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
 52.7° 60.2° 57.7° 72.0° 56.0° 61.0°

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

 Inland Temperatures, Paso Robles

 Actual Predicted
 
 Wed Thu Fri Sat Sun Mon Tue Wed
 49 90 47 96 48 91 48 93 49 94 47 93 49 95 50 97 
 
 Coastal Valleys Temperatures, San Luis Obispo

 
 Wed Thu Fri Sat Sun Mon Tue Wed
 50 72 50 84 53 80 53 77 52 78 52 76 51 83 52 84 

 WINDS:

 Fresh to strong to (19 to 31 mph) afternoon northwesterly
 winds are forecast today, decreasing to gentle to moderate
 (8 to 18 mph) levels on Friday into Sunday. 
 
 Moderate to fresh (13 to 24 mph) afternoon northwesterly
 winds are forecast on Monday into Wednesday.

 DIABLO CANYON METEOROLOGICAL TOWER WIND DATA:

 Today's Maximum Winds:
 
 Max peak winds: NE 22.2 mph @ 5:30 a.m.
 Max sustained wind: NE 11.3 mph @ 5:30 a.m.

 Yesterday's Maximum Winds:
 
 Max peak winds: NW 42.5 mph @ 2:00 p.m.
 Max sustained wind: NW 33.6 mph @ 4:15 p.m.

 SEAWATER TEMPERATURES:
 
 Intake seawater temperatures will range between 53 and 58
 degrees through Wednesday.

 OCEAN CURRENTS:

 A southerly (offshore) flowing current is expected to flow 
 southward into Wednesday.

 SEAWATER VISIBILITY:

 Seawater visibility was 8 to 10 feet at the Diablo Canyon Marina.

==========================================================================
24-Hour Ocean Condition Outlook for Thursday 09/20 to Friday 09/21

 SEA/SWELL: DIR. NW HT. 5-7 PER. 5-8 This morning 
 Decreasing to: DIR. NW HT. 4-6 PER. 7-12 This afternoon
 Remaining at: DIR. NW HT. 4-6 PER. 7-12 Tonight

 WINDS: DIR. NE SPEED 10-15 + 20 This morning
 Increasing to: DIR. NW SPEED 20-30 + 35 This afternoon
 Decreasing to: DIR. NW SPEED 10-15 Tonight
==========================================================================
48-Hour Ocean Condition Outlook for Friday 09/21 to Saturday 09/22

 SWELL: DIR. NW HT. 3-5 PER. 8-12 Friday morning 
 Decreasing to: DIR. NW HT. 3-5 PER. 8-12 Friday afternoon
 Remaining at: DIR. NW HT. 3-5 PER. 8-12 Friday night

 (Combined with: DIR. S HT. 1-2 PER. 15-17 All day Friday)

 WINDS: DIR. SE SPEED 5-10 Friday morning
 Increasing to: DIR. WSW SPEED 10-15 Friday afternoon
 Decreasing to: DIR. WSW SPEED 5-10 Friday night
===========================================================================

Extended Ocean Condition Outlook:

 Moderate to fresh (13 to 24 mph) afternoon northwesterly
 winds are forecast on Monday into Wednesday.

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