Pismo Beach Ocean & Surf Report

Diablo Canyon Power Plant - Ocean/Surf Report for 9/18/2014

Arriving from the Northwest:
Today's 4- to 6-foot northwesterly (305-degree, deep-water) swell (with an 8- to 13-second period) will remain at this height but with a gradually shorter period through Friday.

A 3- to 5-foot northwesterly (310-degree, deep-water) sea and swell (with a 7- to 12-second period) will develop along our coastline Saturday and will remain at this height and period through Tuesday.

A 968 millbar storm is forecast to develop 600 miles to the west of Cape Mendocino. If the storm develops as advertise, 5- to 7-foot west-northwesterly (290-degree, deep-water) swell will arrive along our coastline later on Wednesday, peaking next Thursday at 7 to 9 feet (with a 13- to 15-second period). This swell will gradually decrease the next Friday and Saturday.

Arriving from the South
Today's 1- to 3-foot Southern Hemisphere (205-degree, deep-water) swell (with a 15- to 17-second period) will gradually decrease over the next 24 hours.

Hurricane Polo is forecast to move northwestward along the Baja California peninsula. At this time, the storm will be too far east to produce any waves along San Luis Obispo County coastline.

A very intense storm is forecast to develop southeast of New Zealand on Tuesday. If the storm develops as advertised, a long-period Southern Hemisphere swell would arrive along our coastline by the end of September.

Intake Seawater temperatures are forecast to range from 55 and 60 degrees through next Thursday.

Seawater visibility was 8 to 11 feet at the Diablo Canyon Intake.

DIR. NW HT. 4-6 PER. 7-12 Friday morning
Remaining at: DIR. NW HT. 4-6 PER. 5-11 Friday afternoon
Decreasing to: DIR. NW HT. 3-5 PER. 5-11 Friday night

DIR. NW SPEED 5-10 Friday morning
Increasing to: DIR. NW SPEED 20-25 + 30 Friday afternoon
Decreasing to: DIR. NW SPEED 10-15 Friday night

Increasing west-northwesterly swell may develop next Thursday.