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

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000 FXUS66 KMTR 301730 AFDMTR AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA 1030 AM PDT SAT APR 30 2016 .SYNOPSIS....WIND ADVISORY CONTINUES IN THE HILLS THROUGH 10 AM AS GUSTY NORTHERLY WINDS CONTINUE OVER THE REGION. WINDS WILL EASE BY MIDDAY FOLLOWED BY A SUNNY AND WARM AFTERNOON. OFFSHORE WINDS CONTINUE TONIGHT INTO SUNDAY WITH ANOTHER SUNNY AND WARM AFTERNOON TO FINISH THE WEEKEND. COASTAL STRATUS RETURNS TO THE COAST SUNDAY NIGHT INTO MONDAY AS HIGH PRESSURE WEAKENS. SEASONABLE AND DRY TUESDAY BEFORE THE NEXT TROUGH ARRIVES WEDNESDAY WITH A COOLING TREND THAT WILL LEAD TO A CHANCE OF SHOWERS THURSDAY AND FRIDAY WITH BELOW NORMAL TEMPERATURES. && .DISCUSSION...AS OF 9:15 AM PDT SATURDAY...SKIES ARE CLEAR THIS MORNING ACROSS THE DISTRICT. TEMPERATURES COOLED OFF OVERNIGHT DUE TO NO CLOUD COVER...BUT ARE ALREADY WARMING NICELY ACROSS THE DISTRICT. CURRENT READINGS ARE RUNNING FROM THE 50S TO LOWER 60S ALREADY...UP BY AS MANY AS 10 DEGREES OVER YESTERDAY AT THIS TIME. HIGHS TODAY ARE GOING TO BE MUCH WARMER THAN YESTERDAY WITH 70S TO MID 80S EXPECTED. OFFSHORE WINDS TONIGHT INTO SUNDAY WILL KEEP SKIES STRATUS FREE WITH WARM TEMPERATURES EXPECTED AGAIN ON SUNDAY. THE 12Z NAM IS STILL INDICATING A SOUTHERLY SURGE OF STRATUS ON SUNDAY REACHING SANTA CRUZ BY SUNDAY AFTERNOON. THIS COULD AFFECT SOME COASTAL TEMPS TOMORROW...BUT COOLING IS MORE LIKELY TO OCCUR ON MONDAY AS THE SURFACE FLOW BECOMES ONSHORE. ONSHORE FLOW MONDAY AND TUESDAY WILL BRING SEASONABLE AND DRY WEATHER...MORNING CLOUDS FOLLOWED BY AFTERNOON SUNSHINE. ANOTHER LATE SPRING TROUGH IS PROGGED TO ARRIVE BY MIDWEEK BRINGING COOLER WEATHER AND A CHANCE OF SHOWERS AFTER MIDWEEK. THE UPPER LOW IS FORECAST TO REMAIN FAIRLY STATIONARY OVER SOUTHERN NEVADA/SOUTHERN CALIFORNIA THROUGH THE END OF THE WEEK KEEPING COOL TEMPS ACROSS OUR AREA WITH POSSIBLE SHOWERS. && .AVIATION...AS OF 10:30 AM PDT SATURDAY...THE CURRENT VISIBLE SATELLITE IMAGE IS SHOWING CLEAR SKIES AROUND THE FORECAST AREA THIS MORNING AS OFFSHORE FLOW RESIDES WITHIN THE LOWER BOUNDARY LAYER. THE CLEAR SKIES WILL ENHANCE THE AFTERNOON SEA BREEZE WHICH WILL BRING GUSTY ONSHORE WINDS TO THE AREA. OTHERWISE VFR CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THE NEXT 24 TO 36 HOURS. VICINITY OF KSFO...VFR CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THE NEXT 36 HOURS. THE AFTERNOON SEA BREEZE WILL REACH 20 TO 25 KT WITH GUSTS TO 30 KT POSSIBLE. CONFIDENCE IS HIGH. SFO BRIDGE APPROACH...SIMILAR TO KSFO. MONTEREY BAY TERMINALS...VFR CONDITIONS ARE EXPECTED TO PREVAIL THROUGH THE NEXT 24 HOURS. THE AFTERNOON SEA BREEZE IS ANTICIPATED TO REACH 10 T 15 KT THIS AFTERNOON WITH GUSTS TO 20 KT POSSIBLE. CONFIDENCE IS HIGH. && .MARINE...AS OF 8:58 AM PDT SATURDAY...MODERATE TO LOCALLY STRONG NORTHERLY WINDS WILL PREVAIL THROUGH THIS EVENING AS A THERMAL TROUGH RESIDES OVER CALIFORNIA. THESE WINDS WILL PRODUCE ROUGH SEA SURFACE CONDITIONS WITH STEEP FRESH SWELL. WINDS WILL DECREASE OVERNIGHT AS THE SURFACE PRESSURE GRADIENT WEAKENS LEADING TO IMPROVE SEA CONDITIONS. && .MTR WATCHES/WARNINGS/ADVISORIES... .TDAY...SCA...PIGEON PT TO PT PINOS 0-10 NM SCA...PT ARENA TO PIGEON PT 10-60 NM SCA...PT ARENA TO PT REYES 0-10 NM SCA...PT REYES TO PIGEON PT 0-10 NM SCA...PT PINOS TO PT PIEDRAS BLANCAS 0-10 NM SCA...PIGEON PT TO PT PIEDRAS BLANCAS 10-60 NM SCA...ROUGH BAR ADVISORY FOR SF BAR SCA...MRY BAY FROM NOON && $$ PUBLIC FORECAST: SIMS AVIATION: LARRY MARINE: LARRY VISIT US AT WWW.WEATHER.GOV/SANFRANCISCO FOLLOW US ON FACEBOOK AND TWITTER AT: WWW.FACEBOOK.COM/NWSBAYAREA WWW.TWITTER.COM/NWSBAYAREA

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