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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 Weather Watch Column (Waves greatly affect beaches) can be viewed at the following web address: http://www.sanluisobispo.com/682 ========= PG&E DCPP Weather Forecast for Thursday 05/17/12 ======== SEA/SWELL: A 4- to 6-foot northwesterly (315-degree deep-water) sea and swell (with a 5- to 9-second period) will arrive along the Pecho Coast this afternoon, further building to 6 to 8 feet (with a 7- to 11-second period) on Friday. This northwesterly (315-degree deep-water) sea and swell will decrease to 4 to 6 feet (with a 7- to 11-second period) on Saturday, further lowering to 3 to 4 feet by Sunday morning. Increasing northwesterly winds along the Central Coast will generate 3 to 5 foot northwesterly (320-degree shallow-water) seas (with a 4- to 6-second period) on Sunday afternoon through Tuesday morning. Moderate gale to fresh gale force (32- to 46-mph) northwesterly winds along the Northern and Central California coastline will produce a 7 to 9 foot northwesterly (320-degree deep-water) sea and swell (with a 4- to 8-second period) on Tuesday afternoon through Wednesday. Arriving from the southern hemisphere: No significant southern hemisphere swell events to report at this time. ATMOSPHERIC CONDITIONS: An upper-level trough is currently passing over California and will produce variable middle to high-level clouds today. Combined with these mid to high-level clouds will be night and morning marine low clouds and fog along the beaches and in the coastal valleys. A finger of fog is also moving southward through the Salinas Valley towards Paso Robles, but will burn off quickly later this morning. Today's maximum temperatures should remain in the mid to high 50s along the northwesterly facing beaches (Morro Bay, Los Osos, Montana De Oro and the Nipomo Mesa). The low to mid 60s along the westerly facing beaches (Pismo beach). and the high 60s along the southwesterly facing (Cayucos, Avila and Shell Beach). Maximum temperatures will reach the high 60s in the coastal valleys and the mid-80s in the North County. A high pressure ridge will build into California behind the upper-level trough over the weekend for generally warmer weather inland and slightly warmer weather near the coast. Temperatures should rise on Saturday and into Sunday. Cooler weather is forecast to develop early next week as another weak front is forecast to move through the Central Coast with afternoon moderate gale to fresh gale force (32- to 46-mph) northwesterly winds that should keep temperatures below seasonal normal values. At this time, no major heat spells are forecast for the next two weeks. Yesterday's Today's Tomorrow's Min Max Min Max Min Max 49.9° 53.6° 49.6° 56.0° 50.0° 57.0° PG&E San Francisco Met Office predicted temps: Inland Temperatures, Paso Robles Actual Predicted Wed Thu Fri Sat Sun Mon Tue Wed 44 95 48 85 43 82 45 85 48 90 50 90 51 85 49 83 Coastal Valleys Temperatures, San Luis Obispo Wed Thu Fri Sat Sun Mon Tue Wed 51 72 48 68 47 69 48 71 49 74 49 73 50 70 51 69 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) northerly winds will develop on Sunday morning, increasing out of the northwest to fresh to strong (19- to 31-mph) levels on Sunday afternoon. The afternoon northwesterly winds will increase to strong to gale force (25- to 38-mph) levels on Monday afternoon and will further build to moderate gale to fresh gale force (32- to 46-mph) levels on Tuesday and Wednesday. DIABLO CANYON METEOROLOGICAL TOWER WIND DATA: Today's Maximum Winds: Max peak winds: SE 12.3 mph @ 3:45 a.m. Max sustained wind: SE 9.8 mph @ 3:45 a.m. Yesterday's Maximum Winds: Max peak winds: NW 42.1 mph @ 7:15 p.m. Max sustained wind: NW 32.4 mph @ 7:00 p.m. SEAWATER TEMPERATURES: Intake Seawater temperatures will range between 51 and 53 degrees through Monday, decreasing to 49 to 51 degrees on Tuesday and will remain at this level through Wednesday. OCEAN CURRENTS: A persistent southerly (offshore) flowing current will continue to flow southward through Wednesday. SEAWATER VISIBILITY: Seawater visibility was 28 and 30 feet at the Diablo Canyon Intake. ========================================================================== 24-Hour Ocean Condition Outlook for Thursday 05/17 to Friday 05/18 Sea/Swell DIR. NW HT. 3-4 PER. 4-6 This morning Increasing to: DIR. NW HT. 4-6 PER. 5-9 This afternoon Increasing to: DIR. NW HT. 5-7 PER. 5-10 Tonight WINDS: DIR. VAR. SPEED 10-15 This morning Increasing to: DIR. NW SPEED 15-20 + 25 late morning Increasing to: DIR. NW SPEED 25-30 + 40 This afternoon Decreasing to: DIR. NW SPEED 15-20 + 25 Tonight =========================================================================== 48-Hour Ocean Condition Outlook for Friday 05/18 to Saturday 05/19 Sea/Swell DIR. NW HT. 6-8 PER. 7-11 Friday morning Remaining at: DIR. NW HT. 6-8 PER. 7-11 Friday afternoon Decreasing to: DIR. NW HT. 5-7 PER. 7-11 Friday night WINDS: DIR. NW SPEED 15-20 + 20 Friday morning Increasing to: DIR. NW SPEED 25-30 + 40 Friday afternoon Decreasing to: DIR. NW SPEED 15-20 + 25 Friday night =========================================================================== Extended Ocean Condition Outlook: The afternoon northwesterly winds will increase to strong to gale force (25- to 38-mph) levels on Monday afternoon and will further build to moderate gale to fresh gale force (32- to 46-mph) levels on Tuesday and Wednesday. ============================================================================ The 24 - Hour Ocean Data From The Diablo Canyon Wave rider Buoy MONTH DAY TIME SIG.HEIGHT PERIOD SWELL DIRECTION SST 05 10 0710 8.1 11 284 54.5 05 11 1040 6.5 12 274 52.9 05 12 1940 2.8 11 258 56.8 05 13 1310 3.0 20 222 61.0 05 14 0410 2.6 20 226 58.6 05 15 0710 4.0 17 206 51.1 05 16 1710 5.1 15 219 53.6 05 17 0140 3.9 7 286 54.7 (cm) (sec) 22+ 20 17 15 13 11 9 7 ------------------------------------------------------------------------ 05 10 0710 246 11 2 12 26 107 208 1251 1122 457 05 11 1040 197 11 1 6 53 86 444 1054 366 208 05 12 1940 86 9 3 4 4 21 36 90 155 75 05 13 1310 91 13 14 98 3 25 123 54 85 55 05 14 0410 80 11 3 79 29 11 45 95 56 50 05 15 0710 121 4 3 24 242 50 23 121 105 308 05 16 1710 154 4 1 13 18 128 29 9 52 684 05 17 0140 118 7 1 4 11 65 15 8 83 285 Daily Swell Inspection Program NAME DAY TIME HEIGHT PERIOD SST (PST) (FEET) (SECONDS) (DEG. F) # 01 Ocean Station Papa 17 0100 3 13 43.3 # 06 SE Papa 17 0150 4 15 54.9 # 59 California Buoy 17 0150 4 15 56.7 # 01 Point Reyes Waverider 17 0146 7 7 50.0 # 15 Monterey Waverider Buoy 17 0150 3 14 52.5 # 28 Cape San Martin, CA 17 0150 6 7 53.8 # 50 DCPP Waverider Buoy, CA 17 0140 4 8 53.8 # 63 Harvest Buoy 17 0120 7 8 53.6 # 01 NW Hawaii 17 0120 6 9 75.6 * 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 Monday 1500 through Tuesday 1500 0.00 inches Tuesday 1500 through Wednesday 1500 0.00 inches Wednesday 1500 through Thursday 1500 0.00 inches Precipitation this rain season (July 1 - June 30): 11.46 inches Average season rainfall at DCPP to date: 24.29 inches Ocean Lab Barometer: 29.92 in/Hg or 1013.1 mb -0.7 mb (Falling) Today's Sunrise 5:57 AM Sunset 8:02 PM Tomorrow's Sunrise 5:56 AM Sunset 8:03 PM Tides: Low Tide High Tide AM PM AM PM 17 Thursday 3:10 0.2 2:22 1.6 9:19 3.5 8:42 5.3 18 Friday 3:45 -0.1 2:53 1.9 10:05 3.5 9:09 5.4 19 Saturday 4:19 -0.3 3:24 2.1 10:47 3.5 9:36 5.5 20 Sunday 4:52 -0.5 3:55 2.2 11:27 3.5 10:05 5.5 21 Monday 5:26 -0.6 4:26 2.4 (12:08 3.5) 10:36 5.4 22 Tuesday 6:01 -0.6 5:01 2.5 (12:50 3.5) 11:08 5.3 23 Wednesday 6:39 -0.6 5:39 2.6 (1:35 3.4) 11:43 5.2 24 Thursday 7:18 -0.5 6:24 2.7 ----- --- 2:23 3.5 25 Friday 8:00 -0.3 7:23 2.8 12:23 4.9 3:13 3.6 26 Saturday 8:44 -0.1 8:39 2.8 1:08 4.6 4:01 3.7 27 Sunday 9:30 0.1 10:07 2.5 2:05 4.2 4:44 4.0 28 Monday 10:17 0.4 11:29 2.0 3:18 3.8 5:24 4.4 29 Tuesday 11:06 0.7 ----- --- 4:44 3.5 6:02 4.8 ========================================================================= This day in weather history 1979 - A reading of 12 degrees at Mauna Kea Observatory established an all-time record low for the state of Hawaii. 1983 - A golfer playing the Fox Meadows Course in Memphis TN was struck by a bolt of lightning that went through his neck, down his spine, came out a pocket containing his keys, and went into a nearby tree. Miraculously, he survived! 2010 - The rainy season just seems to want to hold on a little longer. Mostly cloudy weather a few sprinkles and scattered rain showers will continue through this morning 2011 - A cold front passed over Diablo Canyon at 1 a.m. this morning and produce gusty southerly winds and rain. 24-hour rainfall totals as of 10 a.m.: Arroyo Grande .............................. 0.40" Atascadero, south side at Micky's home ..... 0.17" Baywood Park ............................... 0.17" Camp San Luis ............................. 0.55" Cambria .................................... 0.59" Cottontail Creek near Cayucos............... 0.90" Condor Lookout Los Padres National Forest .. 0.81" Diablo Canyon .............................. 0.52" Islay Hill, San Luis Obispo, CA ............ 1.15" Morro Bay at Rich's Home ................... 0.22" Nipomo ..................................... 0.35" Paul's House (41 West & Toro Creek) ........ 0.60" Paso Robles Airport ........................ 0.36" PG&E Energy Education Center ............... 0.76" Rocky Butte ................................ 1.77" Santa Margarita Fire Department ............ 0.81" San Luis Obispo County Airport ............. 1.01" San Luis Obispo Water Reclamation Facility . 1.43" San Simeon at Walt's Home .................. 0.60" SLOWeather.com ............................. 1.45" Sunset Palisades, Marvin & Pet's home ...... 0.62" Templeton .................................. 0.55" ========================================================================= 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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last update January 23, 2012 copyright © 2012, Tenera Environmental. All rights reserved. |
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