Pismo Beach Ocean & Surf Report

Diablo Canyon Power Plant - Ocean/Surf Report for 12/16/2014

SWELL:
Arriving from the Northwest:
Today's 9- to 11-foot west-northwesterly (285-degree, deep-water) swell (with 15- to 17-second period) will decrease to 8 to 10 feet by Wednesday and 6 to 8 feet (with a 12- to 14-second period) Thursday.

A rapidly intensifying storm will move into the Gulf of Alaska on Wednesday. Northwesterly swell from this storm will arrive along our coastline Friday at 5- to 7-feet (with a 19- to 21- second period), increasing to 12 to 14 feet Saturday (with an 18- to 20-second period). This swell will decrease to 9 to 11-feet (with a 14- to 16-second period) by Sunday.

Another long-period northwesterly swell will arrive Monday at 6- to 8-feet (with a 19- to 21-second period), peaking next Tuesday at 9 to 11 feet (with an 18- to 20-second period). The longer-range charts and models are indicating less storm activity across the Pacific late next week, resulting in calmer oceanographic conditions.

Arriving from the South
None to report.

SEAWATER TEMPERATURE:
Intake seawater temperatures will range between 62 and 63 degrees through Wednesday, decreasing to 60 and 62 degrees on Thursday into Friday.

Intake seawater temperatures will continue decrease through next Monday.

SEAWATER VISIBILITY:
Seawater visibility was 1 to 2 feet at the Diablo Canyon Intake.

OUTLOOK for SWELL:
DIR. WNW HT. 8-10 PER. 14-16 Wednesday morning
Remaining at: DIR. WNW HT. 8-10 PER. 13-15 Wednesday afternoon
Remaining at: DIR. WNW HT. 8-10 PER. 12-14 Wednesday night

OUTLOOK for WINDS:
DIR. S SPEED 10-15 Wednesday morning
Increasing to: DIR. NW SPEED 20-25 + 30 Wednesday afternoon
Decreasing to: DIR. NW SPEED 10-15 + 20 Wednesday night

EXTENDED OCEAN CONDITION OUTLOOK:
The longer-range charts and models are indicating less storm activity across the Pacific next week, resulting in calmer oceanographic conditions.