Area Forecast Discussion
Issued by NWS San Francisco Bay Area, CA

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS66 KMTR 271615 AFDMTR Area Forecast Discussion National Weather Service San Francisco Bay Area 915 AM PDT SAT AUG 27 2016 .SYNOPSIS...Very little change is expected through at least the middle of next week. Temperatures will be near or slightly below normal through the period. Areas of night and morning low clouds will give way to sunny skies by midday for inland areas. Most coastal areas will continue to see widespread low cloud cover persist through the daytime hours. && .DISCUSSION...
-- Changed Discussion --
as of 09:10 AM PDT Saturday...Deep marine layer over the region in excess of 2,500 feet in depth has allowed for blanket of low clouds to cover the region. With cloud bases generally in the 1,500 to 1,800 foot range, do expect burn-off to occur through late morning giving way to mostly sunny conditions inland this afternoon. Overall, conditions should be similar to those yesterday with most inland areas seeing temperatures below seasonal averages and near normal at the coast. Have adjusted the sky cover to reflect current satellite trends. Otherwise, no major changes needed to the forecast this morning.
-- End Changed Discussion --
&& .PREV DISCUSSION...
-- Changed Discussion --
As of 3:00 AM PDT Saturday...Broken record forecast as we approach the final week of August. After countless days of widespread morning clouds with mostly mild daytime temperatures, look for little change at least through the middle of next week. At the surface the flow continues to be moderately onshore while the marine layer is still in excess of 2,500 feet these two factors will produce more cooler than normal readings. A ridge of high pressure will start to build into our region over the next several days which will help to bring some warming especially for inland regions. Spots will away from the coast will increase 3 to 7 degrees with widespread upper 70s to upper 80s forecast. Coastal areas will generally be in the 60s to lower 70s. Hot weather will be confined to southern Monterey and San Benito counties with 90s to lower 100s anticipated. Smoke is expected to mostly stay confined south of the San Francisco Bay Region and Santa Clara County. Longer range models flip to a trough pattern for the second half of next week and keep that in place going into the following week. Models are in disagreement with the depth of the trough however there is general agreement that we will see another drop in temperatures which could last through the first week in September. The bulk of any rain should remain to our north.
-- End Changed Discussion --
&& .AVIATION...as of 4:45 AM PDT Saturday...Stratus extends well into the SFO Bay Area this morning with high bases and a 2500 foot marine layer. Weak winds around the district will result in slow clearing of the stratus. But by late morning the stratus will be high enough to mix out and the afternoon will be VFR. Vicinity of KSFO...MVFR cigs through 19Z. This is in agreement with the SFO Stratus models. Bases expected to remain above 1500 feet. SFO Bridge Approach...Similar to KSFO. Monterey Bay Terminals...MVFR through 19Z. && .MARINE...
-- Changed Discussion --
as of 09:10 AM PDT Saturday...Generally light wind and seas through the weekend. Increasing northwest winds by early next week. A mixed short period northwest swell and a long period southerly swell will continue to impact the coastal waters.
-- End Changed Discussion --
&& .MTR WATCHES/WARNINGS/ADVISORIES... .Tday...SCA...SF Bay from 2 PM && $$ PUBLIC FORECAST: RGass AVIATION: W Pi MARINE: DRP Visit us at www.weather.gov/sanfrancisco Follow us on Facebook and twitter at: www.Facebook.com/nwsbayarea www.twitter.com/nwsbayarea

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.