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FXUS66 KMTR [Monterey CA] 090617 AFDMTR 

FXUS66 KMTR 090617
AFDMTR [HEAD]

National Weather Service San Francisco California 11:17pm PDT Tue Oct 8 2024 

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1117 PM PDT TUE OCT 8 2024 [HEAD]

New aviation.  

...NEW AVIATION... [DISC]

Synopsis. Issued at 1:12pm PDT Tuesday October 8 2024 

.SYNOPSIS...
ISSUED AT 112 PM PDT TUE OCT 8 2024 [DISC]

Expect gradual cooling across the forecast area that'll extend into the weekend. Temperatures will remain above normal until the weekend. A Heat Advisory remains in effect until 7pm this evening for the East Bay interior valleys, eastern Santa Clara Hills and the East Bay hills. 

EXPECT GRADUAL COOLING ACROSS THE FORECAST AREA THAT`LL EXTEND
INTO THE WEEKEND. TEMPERATURES WILL REMAIN ABOVE NORMAL UNTIL THE
WEEKEND. A HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM THIS EVENING
FOR THE EAST BAY INTERIOR VALLEYS, EASTERN SANTA CLARA HILLS AND
THE EAST BAY HILLS. [DISC]

Update. Issued at 8:33pm PDT Tuesday October 8 2024 

.UPDATE...
ISSUED AT 833 PM PDT TUE OCT 8 2024 [DISC]

Current temperatures this hour are well on track with the forecast going into tonight. Heat Advisory in the interior East Bay has been allowed to expire as temps are expected to cool through the next few days. Now that our weather is relatively quiet, keep our colleagues in our Florida offices in your thoughts. They just dealt with historic Hurricane Helene and are now dealing with historic hurricane milton in some of the same locations. 

CURRENT TEMPERATURES THIS HOUR ARE WELL ON TRACK WITH THE FORECAST
GOING INTO TONIGHT. HEAT ADVISORY IN THE INTERIOR EAST BAY HAS
BEEN ALLOWED TO EXPIRE AS TEMPS ARE EXPECTED TO COOL THROUGH THE
NEXT FEW DAYS. NOW THAT OUR WEATHER IS RELATIVELY QUIET, KEEP OUR
COLLEAGUES IN OUR FLORIDA OFFICES IN YOUR THOUGHTS. THEY JUST
DEALT WITH HISTORIC HURRICANE HELENE AND ARE NOW DEALING WITH
HISTORIC HURRICANE MILTON IN SOME OF THE SAME LOCATIONS. [DISC]

Behringer 

BEHRINGER [CRED]

Short term. (this evening through Wednesday) issued at 1:35pm PDT Tuesday October 8 2024 

.SHORT TERM...
(THIS EVENING THROUGH WEDNESDAY)
ISSUED AT 135 PM PDT TUE OCT 8 2024 [DISC]

Farthest inland locations where it'll still be hot today such as the East Bay and the eastern Santa Clara Hills are under a Heat Advisory until 7pm this evening. A modest 1.8 mb SFO [San Francisco CA]-SAC [Sacramento CA] pressure gradient will otherwise result in afternoon and early evening sea-breezes. Afternoon temperatures closer to the bays and the coast are cooler to much cooler compared to Monday afternoon. Afternoon temps are quite likely to fall short of today's record highs at the long term sites. 

FARTHEST INLAND LOCATIONS WHERE IT`LL STILL BE HOT TODAY SUCH AS
THE EAST BAY AND THE EASTERN SANTA CLARA HILLS ARE UNDER A HEAT
ADVISORY UNTIL 7 PM THIS EVENING. A MODEST 1.8 MB SFO-SAC PRESSURE
GRADIENT WILL OTHERWISE RESULT IN AFTERNOON AND EARLY EVENING SEA-
BREEZES. AFTERNOON TEMPERATURES CLOSER TO THE BAYS AND THE COAST ARE
COOLER TO MUCH COOLER COMPARED TO MONDAY AFTERNOON. AFTERNOON TEMPS
ARE QUITE LIKELY TO FALL SHORT OF TODAY`S RECORD HIGHS AT THE LONG
TERM SITES. [DISC]

Long term. (Wednesday night through next Monday) issued at 1:35pm PDT Tuesday October 8 2024 

.LONG TERM...
(WEDNESDAY NIGHT THROUGH NEXT MONDAY)
ISSUED AT 135 PM PDT TUE OCT 8 2024 [DISC]

A gradual cooling trend continues through mid to late week. By the weekend temperatures will be near normal for the time of year. Dry weather prevails this week, then a weakening 500 mb trough approaches the forecast area with a slight chance to chance of light measurable rain over the weekend. 

A GRADUAL COOLING TREND CONTINUES THROUGH MID TO LATE WEEK. BY THE
WEEKEND TEMPERATURES WILL BE NEAR NORMAL FOR THE TIME OF YEAR. DRY
WEATHER PREVAILS THIS WEEK, THEN A WEAKENING 500 MB TROUGH APPROACHES
THE FORECAST AREA WITH A SLIGHT CHANCE TO CHANCE OF LIGHT MEASURABLE
RAIN OVER THE WEEKEND. [DISC]

Aviation. (06Z [11pm PDT] TAFs [Terminal Aerodrome Forecasts]) issued at 11:16pm PDT Tuesday October 8 2024 

.AVIATION...
(06Z TAFS)
ISSUED AT 1116 PM PDT TUE OCT 8 2024 [AVIA]

IFR [Instrument Flight Rules]/LIFR [Low Instrument Flight Rules] ceilings are moving inland, affecting the Monterey Bay and SF Bay terminals as well as the North Bay terminals later into the night. Expect light to moderate winds through the late morning. Expect moderate to breezy winds to build in afternoon as ceilings lift. Winds look to reduce in the mid evening as ceilings begin to move inland once again. 

IFR/LIFR CIGS ARE MOVING INLAND, AFFECTING THE MONTEREY BAY AND SF
BAY TERMINALS AS WELL AS THE NORTH BAY TERMINALS LATER INTO THE
NIGHT. EXPECT LIGHT TO MODERATE WINDS THROUGH THE LATE MORNING.
EXPECT MODERATE TO BREEZY WINDS TO BUILD IN AFTERNOON AS CIGS LIFT.
WINDS LOOK TO REDUCE IN THE MID EVENING AS CIGS BEGIN TO MOVE INLAND
ONCE AGAIN. [AVI2]

Vicinity of SFO [San Francisco CA]VFR [Visual Flight Rules] lasts into the late night but moments of IFR [Instrument Flight Rules] ceilings affect the terminal in the late night through the early morning. Winds stay moderate through the late morning before increasing into the afternoon. Expect gusts around 25 kts [29 mph] to last into the night before reducing. 

VICINITY OF SFO...VFR LASTS INTO THE LATE NIGHT BUT MOMENTS OF IFR
CIGS AFFECT THE TERMINAL IN THE LATE NIGHT THROUGH THE EARLY
MORNING. WINDS STAY MODERATE THROUGH THE LATE MORNING BEFORE
INCREASING INTO THE AFTERNOON. EXPECT GUSTS AROUND 25 KTS TO LAST
INTO THE NIGHT BEFORE REDUCING. [AVI2]

SFO [San Francisco CA] bridge approach… similar to SFO [San Francisco CA]

SFO BRIDGE APPROACH...SIMILAR TO SFO. [AVI2]

Monterey Bay terminals… LIFR [Low Instrument Flight Rules]/IFR [Instrument Flight Rules] ceilings last through the late morning with some pockets of mist. Expect light through the night with more moderate winds arriving Monday afternoon as ceilings erode. These winds will last into the evening before light winds and IFR [Instrument Flight Rules] ceilings return after nightfall. 

MONTEREY BAY TERMINALS...LIFR/IFR CIGS LAST THROUGH THE LATE MORNING
WITH SOME POCKETS OF MIST. EXPECT LIGHT THROUGH THE NIGHT WITH MORE
MODERATE WINDS ARRIVING MONDAY AFTERNOON AS CIGS ERODE. THESE WINDS
WILL LAST INTO THE EVENING BEFORE LIGHT WINDS  AND IFR CIGS RETURN
AFTER NIGHTFALL. [AVI2]

Marine. (tonight through next Monday) issued at 8:33pm PDT Tuesday October 8 2024 

.MARINE...
(TONIGHT THROUGH NEXT MONDAY)
ISSUED AT 833 PM PDT TUE OCT 8 2024 [AVIA]

Moderate to fresh northwesterly breezes and rough seas in the outer waters will prevail through Thursday. Friday and into the weekend will bring renewed chances for rain as a weak cold front moves through. 

MODERATE TO FRESH NORTHWESTERLY BREEZES AND ROUGH SEAS IN THE
OUTER WATERS WILL PREVAIL THROUGH THURSDAY. FRIDAY AND INTO THE
WEEKEND WILL BRING RENEWED CHANCES FOR RAIN AS A WEAK COLD FRONT
MOVES THROUGH. [AVI2]

MTR Watches/Warnings/Advisories

  • California: none.
  • Pacific Ocean: Small Craft Advisory until 3am PDT Wednesday for Pigeon Pt [Pescadero CA] to Pt Pinos [Monterey CA] 0–10 nm [11 miles]-Pt Arena [Mendocino CA] to Pt Reyes [San Francisco CA] 0–10 nm [11 miles]
.MTR WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...SMALL CRAFT ADVISORY UNTIL 3 AM PDT WEDNESDAY FOR PIGEON PT TO
PT PINOS 0-10 NM-PT ARENA TO PT REYES 0-10 NM. [WARN]
  • Small Craft Advisory from 9am to 9pm PDT Wednesday for Pigeon Pt [Pescadero CA] to Pt Pinos [Monterey CA] 0–10 nm [11 miles]-Pt Arena [Mendocino CA] to Pt Reyes [San Francisco CA] 0–10 nm [11 miles]
     SMALL CRAFT ADVISORY FROM 9 AM TO 9 PM PDT WEDNESDAY FOR PIGEON
PT TO PT PINOS 0-10 NM-PT ARENA TO PT REYES 0-10 NM. [WRN2]
  • Small Craft Advisory until 9pm PDT Wednesday for Pigeon Pt [Pescadero CA] to Pt Pinos [Monterey CA] 10–60 nm [69 miles]-Pt Arena [Mendocino CA] to Pt Reyes [San Francisco CA] 10–60 nm [69 miles]-Pt Pinos [Monterey CA] to Pt Piedras Blancas [San Simeon CA] 0–10 nm [11 miles]
     SMALL CRAFT ADVISORY UNTIL 9 PM PDT WEDNESDAY FOR PIGEON PT TO
PT PINOS 10-60 NM-PT ARENA TO PT REYES 10-60 NM-PT PINOS TO
PT PIEDRAS BLANCAS 0-10 NM. [WRN2]
  • Short term…canepa long term…canepa aviation…murdock marine…sarment 
SHORT TERM...CANEPA
LONG TERM....CANEPA
AVIATION...MURDOCK
MARINE...SARMENT [WRN2]
VISIT US AT WWW.WEATHER.GOV/SANFRANCISCO [LINK]

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Point Forecast

Half Moon Bay Airport

08 Oct 10:55pm PDT

Tonight Mostly cloudy, with a low around 54°. NW wind 6 to 8 mph.
Wednesday Partly sunny, with a high near 65°. WNW wind 6 to 9 mph.
Wednesday Night Increasing clouds, with a low around 53°. WNW wind around 6 mph becoming calm after midnight.
Thursday Mostly cloudy, with a high near 64°. Calm wind becoming west 5 to 7 mph in the morning.
Thursday Night Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 51°. Light west wind.
Friday Patchy fog before 9am. Otherwise, partly sunny, with a high near 65°.
Friday Night Mostly cloudy, with a low around 53°.
Saturday A chance of rain, mainly after 11am. Partly sunny, with a high near 67°.
Saturday Night A chance of rain. Mostly cloudy, with a low around 55°.
Sunday A slight chance of rain. Mostly cloudy, with a high near 66°.
Sunday Night A slight chance of rain. Cloudy, with a low around 54°.
Columbus Day Mostly cloudy, with a high near 64°.
Monday Night Mostly cloudy, with a low around 54°.
Tuesday Mostly cloudy, with a high near 64°.
Tonight
Mostly cloudy, with a low around 54. Northwest wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 65. West northwest wind 6 to 9 mph.
Wednesday Night
Increasing clouds, with a low around 53. West northwest wind around 6 mph becoming calm after midnight.
Thursday
Mostly cloudy, with a high near 64. Calm wind becoming west 5 to 7 mph in the morning.
Thursday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 51. Light west wind.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 65.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
A chance of rain, mainly after 11am. Partly sunny, with a high near 67.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 55.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 66.
Sunday Night
A slight chance of rain. Cloudy, with a low around 54.
Columbus Day
Mostly cloudy, with a high near 64.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Mostly cloudy, with a high near 64.

This page is generated dynamically from the National Weather Service's NWS point forecast and Area Forecast Discussion, reformatted for readability. NWS glossary; about point forecasts. For more information, visit the Lobitos Weather Project home page. Comments and corrections are welcome: