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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 "There’s a probability that forecast will be accurate" 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 Tuesday 05/21/13 ========== SEA/SWELL Moderate gale- to fresh gale-force (32- to 46-mph) northwesterly winds with gust over 50-mph along the Central California coast starting this afternoon will produce "Victory at Sea Conditions" through Thursday. These winds will generate an 8- to 10-foot northwesterly (320- degree deep-water) sea and swell (with a 4- to 9-second period) this afternoon through tonight, increasing to 9 to 11 feet (with a 7- to 11-second period) Wednesday through Thursday. This northwesterly (320-degree deep-water) sea and swell will decrease to 6 to 8 feet Friday, further lowering to 4 to 6 feet (with a 5- to 12-second period) Saturday into Monday. Arriving from the Southern Hemisphere: Today's 2- to 3-foot Southern Hemisphere (205-degree deep- water) swell (with a 15- to 17-second period) will gradually decrease Wednesday. ATMOSPHERIC CONDITIONS: A cold front moving down the California coast will continue to produce variable cloudy skies through early this afternoon. As this cold front moves south of San Luis Obispo County later this afternoon it will set up a steep pressure gradient along the Central California coast. This condition will produce moderate gale- to fresh gale-force (32- to 46-mph) northwesterly winds with gust over 50-mph along the shoreline this afternoon that will continue through Thursday. However, these winds should shift more out of the north during the morning hours, giving clear skies. Today's temperatures will be between 10 and 20 degrees cooler in the North County and Coastal Valleys than yesterday's highs. Temperatures along the coastline will range between the low to high 60s. A weak area of low pressure is then expected move toward the Central Coast on Friday and hang around through the Memorial Day weekend. This low pressure system will keep temperatures near or below normal for all locations with 60s and 70s near the coast and 70s to middle 80s for the inland valleys and North County. This pattern will likely last into early next week with a chance for warmer weather by the end of next week. Yesterday's Today's Tomorrow's Min Max Min Max Min Max 53.4° 61.6° 52.4° 60.0° 53.0° 57.0° PG&E Weather Office in San Francisco predicted temperatures for San Luis Obispo County. Inland Temperatures, Paso Robles Actual Predicted Mon Tue Wed Thu Fri Sat Sun Mon Tue 45 96 54 88 45 78 44 76 45 78 44 78 46 77 47 80 48 82 Coastal Valleys Temperatures, San Luis Obispo Mon Tue Wed Thu Fri Sat Sun Mon Tue 50 91 51 71 48 70 46 69 45 68 47 69 49 71 49 71 49 72 WINDS: Moderate gale- to fresh gale-force (32- to 46-mph) northwesterly winds will develop this afternoon and will continue through Thursday, decreasing to strong to gale force (25- to 38-mph) levels on Friday. Moderate to fresh (13- to 24-mph) northwesterly winds are forecast on Saturday into Monday. DIABLO CANYON METEOROLOGICAL TOWER WIND DATA: Today's Maximum Winds: Max peak winds: SE 8.0 mph @ 9:15 a.m. Max sustained wind: SE 6.3 mph @ 9:15 a.m. Yesterday's Maximum Winds: Max peak winds: NW 36.9 mph @ 12:30 p.m. Max sustained wind: NW 30.0 mph @ 12:30 p.m. SEAWATER TEMPERATURES: Seawater temperatures will range between 48 and 51 degrees through today, decreasing to 47 and 50 degrees on Wednesday through Friday. Cold indeed! Seawater temperatures will increase to between 49 and 52 degrees on Saturday and remain at this level through next Tuesday. OCEAN CURRENTS: A southerly (offshore) flowing current will continue to flow southward through next Tuesday. SEAWATER VISIBILITY: Seawater visibility was 32 feet (top to bottom) at the Diablo Canyon Intake. ========================================================================== 24-Hour Ocean Condition Outlook for Tuesday 05/21 to Wednesday 05/22 SEA/SWELL: DIR. NW HT. 5-7 PER. 5-9 This morning Increasing to: DIR. NW HT. 8-10 PER. 4-9 This afternoon Remaining at: DIR. NW HT. 8-10 PER. 5-9 Tonight (Combined with: DIR. SW HT. 2-3 PER. 15-17 All Day Today) WINDS: DIR. SE SPEED 5-10 This morning Increasing to: DIR. NW SPEED 30-35 + 45 This afternoon Decreasing to: DIR. NW SPEED 25-30 + 40 Tonight =========================================================================== 48-Hour Ocean Condition Outlook for Wednesday 05/22 to Thursday 05/23 SEA/SWELL: DIR. NW HT. 8-10 PER. 5-9 Wednesday morning Increasing to: DIR. NW HT. 9-11 PER. 7-11 Wednesday afternoon Remaining at: DIR. NW HT. 9-11 PER. 7-11 Wednesday night (Combined with: DIR. SW HT. 2-3 PER. 14-16 All Day Wednesday) WINDS: DIR. NNW SPEED 25-30 + 35 Wednesday morning Increasing to: DIR. NW SPEED 35-40 + 50 Wednesday afternoon Decreasing to: DIR. NW SPEED 25-30 + 40 Wednesday night =========================================================================== Extended Ocean Condition Outlook: Moderate to fresh (13- to 24-mph) northwesterly winds are forecast on Saturday into 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 Not reporting today, should be back online Wednesday. 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 Not reporting today, should be back online Wednesday. Daily Swell Inspection Program NAME DAY TIME HEIGHT PERIOD SST (PST) (FEET) (SECONDS) (DEG. F) # 70 Southwest Bering Sea 21 0400 9 8 39.0 # 75 Shumagin Islands, AK 21 0409 13 15 42.4 # 01 Ocean Station Papa 21 0447 5 17 46.2 # 06 SE Papa ^ See Note # 59 California ^ See Note # 29 Point Reyes Waverider 21 0446 10 7 49.3 # 15 Monterey Waverider Buoy 21 0445 5 8 53.6 # 28 Cape San Martin, CA 21 0433 9 8 55.4 # 76 DCPP Waverider Not reporting today, should be back online Wed. # 63 Harvest Buoy 21 0433 8 17 52.7 # 01 NW Hawaii 21 0400 8 10 75.6 # 04 SE Hawaii 21 0400 5 16 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 Sunday 1500 through Monday 1500 0.00 Monday 1500 through Tuesday 1500 0.00 Precipitation this rain season (July 1 - June 30): 9.04 inches Average season rainfall at DCPP to date: 23.85 inches Ocean Lab Barometer: 29.91 in/Hg or 1012.9 mb +0.8 mb (Rising) Today's Sunrise 5:55 AM Sunset 8:05 PM Tomorrow's Sunrise 5:54 AM Sunset 8:06 PM Tides: Low Tide High Tide AM PM AM PM 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 1896 - The mercury soared to 124 degrees at Salton, CA, to establish a U.S. record for May. (Sandra and TI Richard Sanders - 1987) ========================================================================= 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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