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PG&E DCPP WEATHER FORECAST |
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Tenera Environmental is proud to provide you with this weather web page of the local Diablo Canyon weather report generated by John Lindsey at PG&E. This week's San Luis Obispo Tribune's Weather Watch Column "Changing climate raises valley fever risk" can be viewed at the following web address: http://www.sanluisobispo.com/682 You can catch the live weather forecasts weekday mornings from 6-9 on the KVEC Morning News with King Harris on News/Talk 920 KVEC. =========== PG&E DCPP Weather Forecast for Thursday 05/16/13 ========== SEA/SWELL Strong to gale force (25- to 38-mph) northwesterly winds along our coastline will generate a 5- to 7-foot northwesterly (310- degree deep-water) sea and swell (with a 5- to 9-second period) today through Saturday. A 4- to 6- foot northwesterly (320-degree deep-water) sea and swell (with a 5- to 9-second period) is forecast along our coastline on Sunday into Monday. Moderate gale to fresh gale-force (32- to 46-mph) northwesterly winds will generate a 9- to 11-foot northwesterly (320-degree deep-water) sea and swell (with a 5- to 10-second period) along our coastline on Tuesday through next Thursday. Arriving from the Southern Hemisphere: A 1- to 2-foot southern hemisphere (210-degree deep-water) swell (with an 18- to 20-second period) will arrive along the Pecho Coast later on Saturday, building to 2 to 3 feet (with a 16- to 18-second period) Sunday. This swell will peak Monday at 2 to 4 feet (with a 15- to 17-second period). ATMOSPHERIC CONDITIONS: A weak late season low pressure system is currently morning from west to east through Northern and Central California. This system will produce extensive mid to high-level clouds and areas of night and morning drizzle through tomorrow. Skies should clear Friday afternoon and night. Temperatures today will be somewhat on the cool side for mid May, with maximums this afternoon in the 50's and 60's near the coast, the 60's and 70's across coastal valleys to near 80 in the North County. Saturday will be the transition day back to warmer weather as a high pressure ridge rebuilds across California. This condition is expected to produce night and morning northeasterly (Santa Lucia) winds starting on Sunday and continuing through Monday. This offshore flow will produce clear and warmer conditions, especially along the beaches on Sunday and Monday. Very windy conditions are expected to develop on Tuesday through next Thursday leading to a cooling trend that will last into the Memorial Day Holiday weekend. Yesterday's Today's Tomorrow's Min Max Min Max Min Max 51.4° 57.5° 51.1° 58.0° 51.0° 58.0° 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 Thu 48 86 49 79 50 78 42 80 44 88 45 93 48 89 43 83 41 81 Coastal Valleys Temperatures, San Luis Obispo Wed Thu Fri Sat Sun Mon Tue Wed Thu 52 73 47 71 48 66 47 70 46 82 48 85 45 70 48 71 45 72 WINDS: A pattern of strong to gale force (25- to 38-mph) northwesterly winds developing during the afternoon hours, decreasing during the night and morning hours will continue through Saturday. Gentle to moderate (8- to 18-mph) northeasterly (offshore) winds are forecast during the night and morning hours on Sunday and Monday, shifting out of the northwest during the afternoon hours. Moderate gale to fresh gale-force (32- to 46-mph) northwesterly winds are forecast on Tuesday through next Thursday. DIABLO CANYON METEOROLOGICAL TOWER WIND DATA: Today's Maximum Winds: Max peak winds: NW 29.5 mph @ 11:15 a.m. Max sustained wind: NW 21.7 mph @ 11:15 a.m. Yesterday's Maximum Winds: Max peak winds: NW 38.7 mph @ 3:15 p.m. Max sustained wind: NW 30.1 mph @ 3:00 p.m. SEAWATER TEMPERATURES: Seawater temperatures will range between 49 and 52 degrees through next Thursday. OCEAN CURRENTS: A southerly (offshore) flowing current will continue to flow southward through next Thursday. SEAWATER VISIBILITY: Seawater visibility was 32 feet (top to bottom) at the Diablo Canyon Intake. ========================================================================== 24-Hour Ocean Condition Outlook for Thursday 05/16 to Friday 05/17 SEA/SWELL: DIR. NW HT. 5-7 PER. 5-9 This morning Remaining at: DIR. NW HT. 5-7 PER. 5-9 This afternoon Remaining at: DIR. NW HT. 5-7 PER. 5-9 Tonight WINDS: DIR. NW SPEED 15-20 + 25 This morning Increasing to: DIR. NW SPEED 30-35 + 40 This afternoon Decreasing to: DIR. NW SPEED 20-25 + 30 Tonight =========================================================================== 48-Hour Ocean Condition Outlook for Friday 05/17 to Saturday 05/18 SEA/SWELL: DIR. NW HT. 5-7 PER. 5-9 Friday morning Remaining at: DIR. NW HT. 5-7 PER. 5-9 Friday afternoon Remaining at: DIR. NW HT. 5-7 PER. 5-9 Friday night WINDS: DIR. NW SPEED 15-20 + 25 Friday morning Increasing to: DIR. NW SPEED 30-35 + 40 Friday afternoon Decreasing to: DIR. NW SPEED 20-25 + 30 Friday night =========================================================================== Extended Ocean Condition Outlook: Gentle to moderate (8- to 18-mph) northeasterly (offshore) winds are forecast during the night and morning hours on Sunday and Monday. ============================================================================ The 24 - Hour Ocean Data From The Diablo Canyon Wave rider Buoy MONTH DAY TIME SIG.HEIGHT PERIOD SWELL DIRECTION SST 05 10 1659 4.5 7 280 56.7 05 11 1029 4.1 6 298 54.5 05 12 2329 5.0 7 286 56.3 05 13 0329 4.1 7 279 59.4 05 16 0939 4.9 7 290 53.4 DCPP Ocean Lab Waverider Buoy Energy Spectral Analysis mo. day time sig.ht. sig.per. energy (cm.sq.) (cm) (sec) 22+ 20 17 15 13 11 9 7 --------------------------------------------------------------------- 05 10 1659 138 4 0 2 13 37 16 13 38 668 05 11 1029 126 4 1 2 8 35 29 8 16 619 05 12 2329 152 7 1 2 7 31 48 38 127 422 05 13 0329 124 7 1 4 4 16 30 49 116 261 Daily Swell Inspection Program NAME DAY TIME HEIGHT PERIOD SST (PST) (FEET) (SECONDS) (DEG. F) # 70 Southwest Bering Sea 16 0900 7 7 38.8 # 75 Shumagin Islands, AK 16 0909 7 6 41.5 # 01 Ocean Station Papa 16 0947 7 11 45. # 06 SE Papa ^ See Note # 59 California ^ See Note # 29 Point Reyes Waverider 16 0946 10 7 50.7 # 15 Monterey Waverider Buoy 16 0945 7 11 54.1 # 28 Cape San Martin, CA ^ See Note # 76 DCPP Waverider Buoy, CA 16 0939 5 7 53.3 # 63 Harvest Buoy 16 0933 10 8 53.6 # 01 NW Hawaii 16 0900 6 7 75.6 # 04 SE Hawaii 16 0900 8 8 77.7 ^ Note: The NOAA National Data Buoy Center has deferred annual maintenance for buoys until further notice. The NOAA National Data Buoy Center hopes to resume maintenance of the coastal and offshore weather buoys next year, pending full funding of the President's FY14 budget. * Note: Height (significant swell height) is the average height of the waves in the top third of the wave record. Maximum wave height may be up to TWICE the height in the data shown in the above table. Precipitation at the Diablo Canyon Ocean Lab Tuesday 1500 through Wednesday 1500 0.00 Wednesday 1500 through Thursday 1500 0.00 Precipitation this rain season (July 1 - June 30): 9.04 inches Average season rainfall at DCPP to date: 23.81 inches Ocean Lab Barometer: 30.05 in/Hg or 1017.6 mb +0.8 mb (Rising) Today's Sunrise 5:58 AM Sunset 8:01 PM Tomorrow's Sunrise 5:57 AM Sunset 8:02 PM Tides: Low Tide High Tide AM PM AM PM 16 Thursday 9:34 0.3 9:51 2.7 1:56 4.1 4:58 3.6 17 Friday 10:23 0.5 11:15 2.4 3:01 3.8 5:40 3.9 18 Saturday 11:11 0.6 ---- --- 4:20 3.5 6:15 4.2 19 Sunday 11:57 0.8 (12:23 1.9) 5:41 3.4 6:47 4.6 20 Monday 1:17 1.3 12:41 1.0 6:55 3.4 7:19 5.0 21 Tuesday 2:04 0.6 1:23 1.2 7:59 3.5 7:52 5.5 22 Wednesday 2:49 -0.1 2:06 1.4 8:58 3.7 8:29 5.9 23 Thursday 3:33 -0.8 2:49 1.6 9:53 3.8 9:08 6.3 24 Friday 4:19 -1.3 3:34 1.7 10:46 3.9 9:50 6.5 25 Saturday 5:06 -1.6 4:22 1.9 11:40 3.9 10:36 6.5 26 Sunday 5:54 -1.7 5:14 2.0 12:34 4.0 11:24 6.4 27 Monday 6:45 -1.6 6:12 2.2 ----- --- 1:31 4.0 28 Tuesday 7:37 -1.4 7:19 2.3 12:16 6.0 2:30 4.1 29 Wednesday 8:31 -1.0 8:38 2.3 1:13 5.5 3:29 4.3 30 Thursday 9:26 -0.5 10:07 2.1 2:18 4.8 4:28 4.5 31 Friday 10:22 0.0 11:34 1.7 3:34 4.2 5:22 4.8 ======================================================================== This day in weather history 1924 - The temperature at Blitzen OR soared to 108 degrees to set a state record for the month of May. The record was later tied at Pelton Dam on the 31st of May in 1986. 1952 - High winds in the Wasatch Canyon of Utah struck Ogden and Brigham City. Winds at Hill Air Force Base gusted to 92 mph. 2008 - High pressure over the western U.S. reached its maximum strength today, producing clear skies, low relative humidity levels and warm to hot temperatures. Our inland temperatures reached the 100 degree mark today while our coastal valleys will warmed to the mid-90s. The coastline hit the low 80s. ========================================================================= This weather forecast is a service provided by Pacific Gas and Electric Company (PG&E) to our energy customers. The forecast is valid only for the Diablo Canyon Power Plant coastline area (approximately a one-half mile radius surrounding the plant). Some of the information in this forecast is provided by Pacific Weather Analysis, with their permission. Replication of this email must be in its entirety. You may view and copy material from this forecast, provided you retain all copyright, trademark, and other proprietary notices displayed on the materials. Use of these materials in publications, radio, television, other media presentations, or other websites is prohibited without PG&E's express written consent. PG&E is a subsidiary of PG&E Corporation, one of the largest natural gas and electric utilities in the United States, delivering some of the nation's cleanest energy to 15 million people in northern and central California. If you would like to subscribe or unsubscribe to this daily forecast, please send an email to PGEweather@pge.com. Any questions about this forecast please E-mail John Lindsey at jcl5@pge.com or contact by phone at 546-5265. For more information visit, www.pge.com. |
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