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Area Forecast Discussion FXUS66 KMTR [Monterey CA] 142309 AFDMTR ∨ FXUS66 KMTR 142309 AFDMTR [HEAD] National Weather Service San Francisco California 4:09pm PDT Wed Oct 14 2026 ∨ AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SAN FRANCISCO CA 409 PM PDT WED OCT 14 2026 [HEAD] New aviation, marine. ∨ ...NEW AVIATION, MARINE... [DISC] Key Messages… updated at 12:16am PDT Wednesday October 14 2026 ∨ .KEY MESSAGES... UPDATED AT 1216 AM PDT WED OCT 14 2026 [DISC] - warming trend continues through the end of the work week with above normal temperatures peaking Friday ∨ - WARMING TREND CONTINUES THROUGH THE END OF THE WORK WEEK WITH ABOVE NORMAL TEMPERATURES PEAKING FRIDAY [DISC] - coastal flooding advisory remains in effect through 4pm today for bayshore locations along the San Pablo Bay ∨ - COASTAL FLOODING ADVISORY REMAINS IN EFFECT THROUGH 4 PM TODAY FOR BAYSHORE LOCATIONS ALONG THE SAN PABLO BAY [DISC] - elevated fire weather conditions due to moderate offshore flow and very dry conditions across the higher elevations mid to late week ∨ - ELEVATED FIRE WEATHER CONDITIONS DUE TO MODERATE OFFSHORE FLOW AND VERY DRY CONDITIONS ACROSS THE HIGHER ELEVATIONS MID TO LATE WEEK [DISC] Short term. Issued at 2:19pm PDT Wednesday October 14 2026 (this evening through Thursday night) ∨ .SHORT TERM... ISSUED AT 219 PM PDT WED OCT 14 2026 (THIS EVENING THROUGH THURSDAY NIGHT) [DISC] Weak offshore flow today offers little to see on satellite with bright sunny skies area wide. Offshore ridging over the Eastern Pacific is helping to lift temperatures to near normal for most locations today. We're seeing breezy winds across higher elevations, that have peaked between 20–25 mph so far this afternoon. We're not expecting winds to exceed those speeds for the remainder of the day. While we don't have a a FWW or RFW out, we are messaging elevated fire weather concerns across our area, especially where the gustiest winds are at higher elevation locations in the North Bay and East Bay hills due to critically dry fuels today and through the remainder of the week. Expect another night of clear skies as offshore erodes any marine layer influence overnight. Radiational cooling with the clear skies will result in some cool spots in interior valley locations, while at higher elevations we'll see warmer spots from thermal belting above 1000 ft. ∨ WEAK OFFSHORE FLOW TODAY OFFERS LITTLE TO SEE ON SATELLITE WITH BRIGHT SUNNY SKIES AREA WIDE. OFFSHORE RIDGING OVER THE EPAC IS HELPING TO LIFT TEMPERATURES TO NEAR NORMAL FOR MOST LOCATIONS TODAY. WE`RE SEEING BREEZY WINDS ACROSS HIGHER ELEVATIONS, THAT HAVE PEAKED BETWEEN 20-25 MPH SO FAR THIS AFTERNOON. WE`RE NOT EXPECTING WINDS TO EXCEED THOSE SPEEDS FOR THE REMAINDER OF THE DAY. WHILE WE DON`T HAVE A A FWW OR RFW OUT, WE ARE MESSAGING ELEVATED FIRE WEATHER CONCERNS ACROSS OUR AREA, ESPECIALLY WHERE THE GUSTIEST WINDS ARE AT HIGHER ELEVATION LOCATIONS IN THE NORTH BAY AND EAST BAY HILLS DUE TO CRITICALLY DRY FUELS TODAY AND THROUGH THE REMAINDER OF THE WEEK. EXPECT ANOTHER NIGHT OF CLEAR SKIES AS OFFSHORE ERODES ANY MARINE LAYER INFLUENCE OVERNIGHT. RADIATIONAL COOLING WITH THE CLEAR SKIES WILL RESULT IN SOME COOL SPOTS IN INTERIOR VALLEY LOCATIONS, WHILE AT HIGHER ELEVATIONS WE`LL SEE WARMER SPOTS FROM THERMAL BELTING ABOVE 1000FT. [DISC] Long term. Issued at 2:19pm PDT Wednesday October 14 2026 (Friday through next Tuesday) ∨ .LONG TERM... ISSUED AT 219 PM PDT WED OCT 14 2026 (FRIDAY THROUGH NEXT TUESDAY) [DISC] Elevated to near critical fire concerns continue through the remainder of the week into the beginning of the weekend on Saturday with similar warm, dry and windy conditions especially at higher elevations. The offshore flow, thermal belting and warmer daytime temperatures will result in continued poor overnight recovery and even worse daytime retention through Saturday across the interior. By Sunday, a notable pattern change will shift us back to widespread onshore flow, while a cold front drops temperatures considerably by Sunday afternoon into the beginning of next week. The trough associated with the pattern change will also bring increasing chances for scattered light rain beginning later Monday into Tuesday. The position of the upper level low dropping out of the Gulf of Alaska will determine where the most rain falls, currently focused primarily on the Central Coast with less than a 0.25" between late Monday and Wednesday expected at most. ∨ ELEVATED TO NEAR CRITICAL FIRE CONCERNS CONTINUE THROUGH THE REMAINDER OF THE WEEK INTO THE BEGINNING OF THE WEEKEND ON SATURDAY WITH SIMILAR WARM, DRY AND WINDY CONDITIONS ESPECIALLY AT HIGHER ELEVATIONS. THE OFFSHORE FLOW, THERMAL BELTING AND WARMER DAYTIME TEMPERATURES WILL RESULT IN CONTINUED POOR OVERNIGHT RECOVERY AND EVEN WORSE DAYTIME RETENTION THROUGH SATURDAY ACROSS THE INTERIOR. BY SUNDAY, A NOTABLE PATTERN CHANGE WILL SHIFT US BACK TO WIDESPREAD ONSHORE FLOW, WHILE A COLD FRONT DROPS TEMPERATURES CONSIDERABLY BY SUNDAY AFTERNOON INTO THE BEGINNING OF NEXT WEEK. THE TROUGH ASSOCIATED WITH THE PATTERN CHANGE WILL ALSO BRING INCREASING CHANCES FOR SCATTERED LIGHT RAIN BEGINNING LATER MONDAY INTO TUESDAY. THE POSITION OF THE UPPER LEVEL LOW DROPPING OUT OF THE GULF OF ALASKA WILL DETERMINE WHERE THE MOST RAIN FALLS, CURRENTLY FOCUSED PRIMARILY ON THE CENTRAL COAST WITH LESS THAN A 0.25" BETWEEN LATE MONDAY AND WEDNESDAY EXPECTED AT MOST. [DISC] Aviation. (00Z [5pm PDT] TAFs [Terminal Aerodrome Forecasts]) issued at 4:09pm PDT Wednesday October 14 2026 ∨ .AVIATION... (00Z TAFS) ISSUED AT 409 PM PDT WED OCT 14 2026 [AVIA] Generally VFR [Visual Flight Rules] conditions prevail through the TAF [Terminal Aerodrome Forecast] period, with some high resolution models depicting patchy coastal stratus developing tonight. Low confidence in model output that shows haf getting fog and low stratus tonight. If it does happen, the most likely period for development would be 03–07Z [8pm–12am PDT] before offshore winds mix out the lower layers. Gentle to moderate onshore winds will continue through the evening hours, with light winds overnight before a moderate offshore push in the interior Thursday morning, balanced by a gentle onshore flow developing in the afternoon. ∨ GENERALLY VFR CONDITIONS PREVAIL THROUGH THE TAF PERIOD, WITH SOME HIGH RESOLUTION MODELS DEPICTING PATCHY COASTAL STRATUS DEVELOPING TONIGHT. LOW CONFIDENCE IN MODEL OUTPUT THAT SHOWS HAF GETTING FOG AND LOW STRATUS TONIGHT. IF IT DOES HAPPEN, THE MOST LIKELY PERIOD FOR DEVELOPMENT WOULD BE 03-07Z BEFORE OFFSHORE WINDS MIX OUT THE LOWER LAYERS. GENTLE TO MODERATE ONSHORE WINDS WILL CONTINUE THROUGH THE EVENING HOURS, WITH LIGHT WINDS OVERNIGHT BEFORE A MODERATE OFFSHORE PUSH IN THE INTERIOR THURSDAY MORNING, BALANCED BY A GENTLE ONSHORE FLOW DEVELOPING IN THE AFTERNOON. [AVI2] Vicinity of SFO [San Francisco CA]… VFR [Visual Flight Rules] at the terminal through the TAF [Terminal Aerodrome Forecast] period. Moderate northwest winds continue into the evening hours, with light winds overnight turning offshore Thursday morning before moderate northwest flow resumes in the afternoon. ∨ VICINITY OF SFO... VFR AT THE TERMINAL THROUGH THE TAF PERIOD. MODERATE NORTHWEST WINDS CONTINUE INTO THE EVENING HOURS, WITH LIGHT WINDS OVERNIGHT TURNING OFFSHORE THURSDAY MORNING BEFORE MODERATE NORTHWEST FLOW RESUMES IN THE AFTERNOON. [AVI2] SFO [San Francisco CA] bridge approach… similar to SFO [San Francisco CA]. ∨ SFO BRIDGE APPROACH... SIMILAR TO SFO. [AVI2] Monterey Bay terminals… moderate to high confidence of VFR [Visual Flight Rules] through the TAF [Terminal Aerodrome Forecast] period. Gentle to moderate northwest winds persist into the evening hours, with light to gentle offshore winds overnight before the moderate northwest flow resumes Thursday afternoon. ∨ MONTEREY BAY TERMINALS... MODERATE TO HIGH CONFIDENCE OF VFR THROUGH THE TAF PERIOD. GENTLE TO MODERATE NORTHWEST WINDS PERSIST INTO THE EVENING HOURS, WITH LIGHT TO GENTLE OFFSHORE WINDS OVERNIGHT BEFORE THE MODERATE NORTHWEST FLOW RESUMES THURSDAY AFTERNOON. [AVI2] Marine. (tonight through next Monday) issued at 4:09pm PDT Wednesday October 14 2026 ∨ .MARINE... (TONIGHT THROUGH NEXT MONDAY) ISSUED AT 409 PM PDT WED OCT 14 2026 [AVIA] Seas will continue to subside through the night with moderate seas expected for the offshore zones through the week while nearshore waters observe moderate to slight seas. During this time frame gentle to fresh northerly breezes persist. Moderate to fresh northerly winds return for the weekend, which should lead to building seas. ∨ SEAS WILL CONTINUE TO SUBSIDE THROUGH THE NIGHT WITH MODERATE SEAS EXPECTED FOR THE OFFSHORE ZONES THROUGH THE WEEK WHILE NEARSHORE WATERS OBSERVE MODERATE TO SLIGHT SEAS. DURING THIS TIME FRAME GENTLE TO FRESH NORTHERLY BREEZES PERSIST. MODERATE TO FRESH NORTHERLY WINDS RETURN FOR THE WEEKEND, WHICH SHOULD LEAD TO BUILDING SEAS. [AVI2] Fire weather. Issued at 5:02am PDT Wednesday October 14 2026 ∨ .FIRE WEATHER... ISSUED AT 502 AM PDT WED OCT 14 2026 [AVIA] Elevated to near critical fire weather conditions are expected for the higher elevations late tonight through Friday morning. The main areas of concern will be for the North Bay interior mountains and East Bay hills. The strongest winds look to be over the North Bay interior mountains where gusts 30–40 mph are possible, perhaps up to 45 mph or higher for the highest elevations. The East Bay hills will be breezy as well, but may be closer to 25–35 mph with locally higher gust for exposed ridges and areas of higher terrain. Both areas will be dry with poor overnight RH [Relative Humidity] recovery, which combined with the breezy winds, warmer weather, and available fuels leads to the elevated to near critical fire weather conditions. ∨ ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS ARE EXPECTED FOR THE HIGHER ELEVATIONS LATE TONIGHT THROUGH FRIDAY MORNING. THE MAIN AREAS OF CONCERN WILL BE FOR THE NORTH BAY INTERIOR MOUNTAINS AND EAST BAY HILLS. THE STRONGEST WINDS LOOK TO BE OVER THE NORTH BAY INTERIOR MOUNTAINS WHERE GUSTS 30-40 MPH ARE POSSIBLE, PERHAPS UP TO 45MPH OR HIGHER FOR THE HIGHEST ELEVATIONS. THE EAST BAY HILLS WILL BE BREEZY AS WELL, BUT MAY BE CLOSER TO 25-35 MPH WITH LOCALLY HIGHER GUST FOR EXPOSED RIDGES AND AREAS OF HIGHER TERRAIN. BOTH AREAS WILL BE DRY WITH POOR OVERNIGHT RH RECOVERY, WHICH COMBINED WITH THE BREEZY WINDS, WARMER WEATHER, AND AVAILABLE FUELS LEADS TO THE ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS. [AVI2] MTR Watches/Warnings/Advisories
.MTR WATCHES/WARNINGS/ADVISORIES... CA...NONE. PZ...NONE. [WARN]
SHORT TERM...KENNEDY LONG TERM....KENNEDY AVIATION...DIALH MARINE...JM [WRN2] VISIT US AT WWW.WEATHER.GOV/SANFRANCISCO [LINK] Follow us on Facebook, x, and YouTube at: www.facebook.com/nwsbayarea x.com/nwsbayarea www.youtube.com/nwsbayarea ∨ FOLLOW US ON FACEBOOK, X, AND YOUTUBE AT: WWW.FACEBOOK.COM/NWSBAYAREA X.COM/NWSBAYAREA WWW.YOUTUBE.COM/NWSBAYAREA [DISC] |
Point Forecast Half Moon Bay CA 14 Oct 08:55pm PDT Tonight Mostly clear, with a low around 50°. Calm wind. Thursday Sunny, with a high near 79°. Calm wind becoming north 5 to 7 mph in the morning. Thursday Night Mostly clear, with a low around 56°. NNW wind 5 to 7 mph becoming calm in the evening. Friday Sunny, with a high near 82°. Calm wind becoming ENE around 5 mph. Friday Night Mostly clear, with a low around 56°. NW wind around 5 mph becoming calm in the evening. Saturday Sunny, with a high near 78°. Saturday Night Mostly clear, with a low around 53°. Sunday Mostly sunny, with a high near 63°. Sunday Night Partly cloudy, with a low around 51°. Monday Partly sunny, with a high near 59°. Monday Night A slight chance of rain. Mostly cloudy, with a low around 51°. Tuesday A chance of rain. Partly sunny, with a high near 61°. Tuesday Night Partly cloudy, with a low around 51°. Wednesday Mostly sunny, with a high near 64°. Tonight Mostly clear, with a low around 50. Calm wind. Thursday Sunny, with a high near 79. Calm wind becoming north 5 to 7 mph in the morning. Thursday Night Mostly clear, with a low around 56. North northwest wind 5 to 7 mph becoming calm in the evening. Friday Sunny, with a high near 82. Calm wind becoming east northeast around 5 mph. Friday Night Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening. Saturday Sunny, with a high near 78. Saturday Night Mostly clear, with a low around 53. Sunday Mostly sunny, with a high near 63. Sunday Night Partly cloudy, with a low around 51. Monday Partly sunny, with a high near 59. Monday Night A slight chance of rain. Mostly cloudy, with a low around 51. Tuesday A chance of rain. Partly sunny, with a high near 61. Tuesday Night Partly cloudy, with a low around 51. Wednesday Mostly sunny, with a high near 64. |
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