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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. An interesting blog that provides an in-depth look at the intersection of energy and the environment can be viewed at www.pgecurrents.com/next100/ NEXT100 is written and edited by Jonathan Marshall and it focuses on trends in green technology policy and the Earth’s climate that will most impact the energy industry and PG&E customers over the next 100 years —PG&E’s second century in operation. ========= PG&E DCPP Weather Forecast for Thursday 02/02/12 ======== SEA/SWELL: Today's 6- to 8-foot northwesterly (290-degree deep-water) sea and swell (with a 7- to 17-second period) will become a 5- to 7-foot northwesterly (290-degree deep-water) swell (with an 11- to 15-second period) on Friday. Another 6- to 8-foot northwesterly (295-degree deep-water) swell (with a 13- to 15-second period) is forecast along our coastline on Saturday and will remain at this height and period through Monday. Strong to gale force (25- to 38-mph) southeasterly winds on Tuesday will generate 4- to 6-foot southerly (180-degree shallow-water) seas on Tuesday. A 9- to 11-foot westerly (270-degree deep-water) swell (with an 11- to 17-second period) will follow on Wednesday through next Thursday. Preliminary extended surf analysis: An 11- to 13-foot west-northwesterly (285-degree deep-water) swell (with an 18- to 20-second period) is expected along the Pecho Coast on February 10, 2012. ATMOSPHERIC CONDITIONS: Areas of dense fog developed in the North County this morning. Otherwise, a building high pressure ridge in combination with gusty northeasterly (offshore) winds produced mostly clear and sunny weather throughout the Central Coast this morning. After the fog burns off, the North County will see high temperatures reach the low-60s while the coastal valleys and beaches will reach the mid to high-60s. The northeasterly (offshore) winds will bring a drier air mass into the Central Coast tonight. This condition will produce cooler minimum temperatures in the 30's and 40's and warmer afternoon highs with most Central Coast locations ranging between the high-60s to the low-70s. Once again, dense ground fog is forecast to develop in the North County tomorrow morning. Dry and mild weather will continue through Sunday, with maximum temperatures generally in the high-60's and low-70's and minimums in the upper-30's and 40's under a weak offshore wind flow. A major change in the weather pattern will develop on Monday as a 987 millibar low pressure system and associated cold front approach the California coast. Increasing southerly winds and mid to high-level clouds will develop on Monday afternoon and night. The associated cold front is forecast the pass Central Coast Tuesday morning with strong to gale force (25- to 38-mph) southeasterly winds and periods of moderate rain. Rainfall amounts should range between 0.50 and 1.0 inches. Fair weather should return by Wednesday followed by another chance for showers by the following weekend. Yesterday's Today's Tomorrow's Min Max Min Max Min Max 50.1° 58.7° 53.3° 62.0° 55.0° 65.0° PG&E San Francisco Met Office predicted temps: Inland Temperatures, Paso Robles Actual Predicted Wed Thu Fri Sat Sun Mon Tue Wed Thu 45 64 39 62 31 66 31 67 32 69 33 66 44 60 41 60 36 66 Coastal Valleys Temperatures, San Luis Obispo Wed Thu Fri Sat Sun Mon Tue Wed Thu 47 67 45 69 41 70 39 74 40 72 39 68 46 63 45 65 44 68 WINDS: This morning's moderate to fresh (13- to 24-mph) northeasterly (offshore) winds with higher gust will shift out of the northwest this afternoon. A pattern of moderate to fresh (13- to 24-mph) northeasterly (offshore) winds developing during the night and morning hours, decreasing during the afternoon hours will begin on Friday and will continue through Sunday. Gentle to moderate (8- to 18-mph) southeasterly winds will develop along the coastline on Monday, increasing to strong to gale force (25- to 38-mph) levels by Tuesday morning. These winds will shift out of northwest on Thursday afternoon and night, decreasing on Wednesday. DIABLO CANYON METEOROLOGICAL TOWER WIND DATA: Max peak winds: NE 31.8 mph @ 1:00 a.m. Max sustained wind: NE 17.9 mph @ 1:00 a.m. Yesterday's Maximum Winds: Max peak winds: NW 26.2 mph @ 4:45 p.m. Max sustained wind: NW 16.6 mph @ 4:45 p.m. SEAWATER TEMPERATURES: Intake seawater temperatures will range between 54- and 56 -degrees through Saturday, increasing to 55- to 56-degrees on Sunday. Intake seawater temperatures will continue to range between 55- to 56-degrees through Tuesday. OCEAN CURRENTS: A pattern of a northerly (onshore) flowing current developing during the night and morning hours, becoming a southerly (offshore) flowing current during the afternoon hours will continue through Saturday. A continuously northerly (onshore) flowing current will develop on Sunday and will continue to flow northward through Tuesday. SEAWATER VISIBILITY: Seawater visibility was 6- to 8-feet at the Diablo Canyon Intake. ========================================================================== 24-Hour Ocean Condition Outlook for Thursday 02/02 to Friday 02/03 Sea/Swell DIR. NW HT. 6-8 PER. 7-17 This morning Remaining at: DIR. NW HT. 6-8 PER. 7-17 This afternoon Remaining at: DIR. NW HT. 6-8 PER. 7-16 Tonight WINDS: DIR. NE SPEED 15-20 + 30 This morning Decreasing to: DIR. NW SPEED 15-20 + 25 This afternoon Decreasing to: DIR. N SPEED 5-10 Tonight =========================================================================== 48-Hour Ocean Condition Outlook for Friday 02/03 to Saturday 02/04 Swell DIR. NW HT. 5-7 PER. 11-15 Friday morning Remaining at: DIR. NW HT. 5-7 PER. 11-15 Friday afternoon Decreasing to: DIR. NW HT. 4-6 PER. 11-14 Friday night WINDS: DIR. NE SPEED 10-15 + 20 Friday morning Decreasing to: DIR. NW SPEED 10-15 Friday afternoon Decreasing to: DIR. N SPEED 5-10 Friday night =========================================================================== Extended Ocean Condition Outlook: An 11- to 13-foot west-northwesterly (285-degree deep-water) swell (with an 18- to 20-second period) is expected along the Pecho Coast February 10, 2012. =========================================================================== The 24 - Hour Ocean Data From The Diablo Canyon Wave rider Buoy MONTH DAY TIME SIG.HEIGHT PERIOD SWELL DIRECTION SST 01 27 0911 8.9 14 257 52.2 01 28 0941 5.1 13 274 53.4 01 29 0141 4.7 13 275 53.8 01 30 0511 2.8 20 274 53.6 01 31 0711 4.5 15 258 53.8 02 01 1211 7.0 20 270 54.0 02 01 2141 5.9 17 250 56.8 02 02 0641 6.5 17 254 55.0 (cm) (sec) 22+ 20 17 15 13 11 9 7 ---------------------------------------------------------------------- 01 27 0911 271 15 6 20 196 1388 967 593 609 357 01 28 0941 154 11 1 1 7 41 335 405 271 193 01 29 0141 142 11 1 2 4 64 323 369 193 142 01 30 0511 85 20 11 114 18 23 52 113 45 53 01 31 0711 136 4 4 17 75 255 63 70 55 333 02 01 1211 213 20 43 979 315 77 257 279 288 431 02 01 2141 179 17 16 330 459 218 143 177 173 297 02 02 0641 197 17 11 151 686 563 211 238 273 158 Daily Swell Inspection Program NAME DAY TIME HEIGHT PERIOD SST (PST) (FEET) (SECONDS) (DEG. F) # 166 Ocean Station Papa 2 0402 17 12 42.1 # 06 SE Papa 2 0641 16 8 52.9 # 59 California Buoy 2 0650 7 15 55.4 # 01 Point Reyes Waverider 2 0646 8 14 52.9 # 15 Monterey Waverider Buoy 2 0650 6 15 53.2 # 28 Cape San Martin, Ca 2 0650 9 16 54.1 # 50 DCPP Waverider Buoy, Ca 2 0641 7 17 55.0 # 63 Harvest Buoy 2 0620 9 17 55.8 # 01 NW Hawaii 2 0650 8 6 74.5 * 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 inches Wednesday 1500 through Thursday 1500 0.00 inches Precipitation this rain season (July 1 - June 30): 6.02 inches Average season rainfall at DCPP to date: 13:00 inches Ocean Lab Barometer: 30.12 in/Hg or 1020.1 mb -0.4 mb (Falling) Today's Sunrise 7:02 AM Sunset 5:32 PM Tomorrow's Sunrise 7:01 AM Sunset 5:33 PM Tides: Low Tide High Tide AM PM AM PM 2 Thursday (1:12 0.4) 11:49 2.7 5:27 5.1 8:04 3.3 3 Friday ---- --- 1:49 0.0 6:14 5.3 8:33 3.5 4 Saturday 12:42 2.6 2:23 -0.4 6:58 5.6 9:00 3.7 5 Sunday 1:28 2.4 2:54 -0.6 7:38 5.8 9:26 3.9 6 Monday 2:11 2.1 3:25 -0.7 8:19 6.0 9:53 4.2 7 Tuesday 2:54 1.9 3:57 -0.7 8:59 6.0 10:11 4.5 8 Wednesday 3:39 1.6 4:29 -0.6 9:41 5.8 10:53 4.7 9 Thursday 4:27 1.4 5:02 -0.3 10:25 5.5 11:27 5.0 10 Friday 5:19 1.2 5:37 0.2 11:14 5.0 ----- --- 11 Saturday 6:17 1.0 6:13 0.7 12:05 5.2 12:10 4.4 12 Sunday 7:25 0.9 6:54 1.3 12:47 5.4 1:17 3.8 13 Monday 8:44 0.7 7:44 1.9 1:36 5.4 2:47 3.2 14 Tuesday 10:10 0.5 8:51 2.3 2:35 5.5 4:39 3.1 ========================================================================= This day in weather history 1952 - The only tropical storm of record to hit the U.S. in February moved out of the Gulf of Mexico and across southern Florida. It produced 60 mph winds, and two to four inches of rain. 1988 - A dying low pressure system over southern California deluged the San Diego coastal mountains with more than four inches of rain . Arctic air invading the north central U.S. sent the mercury plunging to 38 degrees below zero at Park Rapids MN. 2004 - A vigorous cold front passed over the Diablo Canyon area this afternoon at 2:45 with heavy rain and thunderstorms. A cold upper atmospheric low pressure center, the driving force behind this storm, will produce scattered rain showers tonight through Tuesday evening and will lower snow levels to 3,000 feet. Expect between 1.5 to 2.0 total inches of precipitation from this system. ========================================================================= 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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