Weather

Link to Local Radar Data

Radar

Link to Satellite Data

Satellite

National Digital Forecast Database Maximum Temperature Forecast

Max Temps

National Digital Forecast Database Weather Element Forecast

Graphical Forecast

Area Forecast Discussion

FXUS66 KMTR [Monterey CA] 250014 AFDMTR 

FXUS66 KMTR 250014
AFDMTR [HEAD]

National Weather Service San Francisco Bay Area 5:14pm PDT Sat Jun 24 2017 

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
514 PM PDT SAT JUN 24 2017 [HEAD]

Synopsis. Typical Bay Area weather pattern expected through the weekend and into next week. Expect areas of night and morning low clouds and fog followed by sunny and seasonably warm afternoons. 

.SYNOPSIS...TYPICAL BAY AREA WEATHER PATTERN EXPECTED THROUGH THE
WEEKEND AND INTO NEXT WEEK. EXPECT AREAS OF NIGHT AND MORNING LOW
CLOUDS AND FOG FOLLOWED BY SUNNY AND SEASONABLY WARM AFTERNOONS. [DISC]

Discussion. As of 2:09pm PDT Saturday… temperatures are running cooler than yesterday especially across inland areas which are running as many as 9° cooler than yesterday at this time. As of 1pm, inland area readings ranged from the mid 70s to mid 80s, with even the warmest areas (fort hunter Liggett and Parkfield) in the mid to upper 90s, also 8–10° cooler than 24 hours ago. The surface pressure gradient from SFO [San Francisco CA] to SAC [Sacramento CA] is still hovering around 3 mb, and the Fort Ord profiler [instrument designed to measure horizontal winds directly above its location, and thus measure the vertical wind profile. Profilers operate on the same principles as Doppler radar.] is still indicating a marine layer depth of around 2000 feet. Look for coastal stratus to fill into inland valleys again tonight. 

.DISCUSSION...AS OF 2:09 PM PDT SATURDAY...TEMPERATURES ARE
RUNNING COOLER THAN YESTERDAY ESPECIALLY ACROSS INLAND AREAS WHICH
ARE RUNNING AS MANY AS 9 DEGREES COOLER THAN YESTERDAY AT THIS
TIME. AS OF 1 PM, INLAND AREA READINGS RANGED FROM THE MID 70S TO
MID 80S, WITH EVEN THE WARMEST AREAS (FORT HUNTER LIGGETT AND
PARKFIELD) IN THE MID TO UPPER 90S, ALSO 8-10 DEGREES COOLER THAN
24 HOURS AGO. THE SURFACE PRESSURE GRADIENT FROM SFO TO SAC IS
STILL HOVERING AROUND 3 MB, AND THE FORT ORD PROFILER IS STILL
INDICATING A MARINE LAYER DEPTH OF AROUND 2000 FEET. LOOK FOR
COASTAL STRATUS TO FILL INTO INLAND VALLEYS AGAIN TONIGHT. [DISC]

Meanwhile, we area still looking at the mid and upper level moisture streaming up from the south. Latest KMUX [Santa Clara/88D CA] scans show a few showers over the coastal waters west of the Big Sur coastline. So far, no lightning strikes have been detected anywhere near our area, but a slight chance remains in the forecast for the Santa Lucia Range as well as the southern portion of the Diablo Range in San Benito County. This activity is expected to end by evening. 

MEANWHILE, WE AREA STILL LOOKING AT THE MID AND UPPER LEVEL
MOISTURE STREAMING UP FROM THE SOUTH. LATEST KMUX SCANS SHOW A FEW
SHOWERS OVER THE COASTAL WATERS WEST OF THE BIG SUR COASTLINE. SO
FAR, NO LIGHTNING STRIKES HAVE BEEN DETECTED ANYWHERE NEAR OUR
AREA, BUT A SLIGHT CHANCE REMAINS IN THE FORECAST FOR THE SANTA
LUCIA RANGE AS WELL AS THE SOUTHERN PORTION OF THE DIABLO RANGE
IN SAN BENITO COUNTY. THIS ACTIVITY IS EXPECTED TO END BY EVENING. [DISC]

The cooling trend is forecast to persist into Sunday as an upper trough approaches the coast, strengthens the onshore flow and ramps up the marine layer. Hottest high temps in the 90s should be confined to only the most interior sections of the district while most areas will stay in the upper 60s to lower 80s range. Seasonable weather conditions are expected to persist through the week with night and morning coastal clouds and afternoon Sun. 

THE COOLING TREND IS FORECAST TO PERSIST INTO SUNDAY AS AN UPPER
TROUGH APPROACHES THE COAST, STRENGTHENS THE ONSHORE FLOW AND
RAMPS UP THE MARINE LAYER. HOTTEST HIGH TEMPS IN THE 90S SHOULD
BE CONFINED TO ONLY THE MOST INTERIOR SECTIONS OF THE DISTRICT
WHILE MOST AREAS WILL STAY IN THE UPPER 60S TO LOWER 80S RANGE.
SEASONABLE WEATHER CONDITIONS ARE EXPECTED TO PERSIST THROUGH THE
WEEK WITH NIGHT AND MORNING COASTAL CLOUDS AND AFTERNOON SUN. [DISC]

Aviation. As of 4:50pm PDT Saturday… for 00Z [5pm PDT] TAFs [Terminal Aerodrome Forecasts]… onshore flow at the surface along with a 1600 ft marine layer similar to last night will result in similar timing for the return and the extent of the stratus tonight. Meanwhile high clouds streaming in with the upper level southerly winds will continue to move across the region through tonight. 

.AVIATION...AS OF 4:50 PM PDT SATURDAY...FOR 00Z TAFS...ONSHORE
FLOW AT THE SURFACE ALONG WITH A 1600 FT MARINE LAYER SIMILAR TO
LAST NIGHT WILL RESULT IN SIMILAR TIMING FOR THE RETURN AND THE
EXTENT OF THE STRATUS TONIGHT. MEANWHILE HIGH CLOUDS STREAMING IN
WITH THE UPPER LEVEL SOUTHERLY WINDS WILL CONTINUE TO MOVE ACROSS
THE REGION THROUGH TONIGHT. [AVIA]

Vicinity of KSFO [San Francisco CA]VFR [Visual Flight Rules] conditions will prevail through this evening with ceilings anticipated to return to KOAK [Oakland CA] around 04Z [9pm PDT] and over KSFO [San Francisco CA] around 08Z [1am PDT] tonight. Low clouds will scatter out around 15Z [8am PDT] to 17Z [10am PDT] Sunday morning. Moderate west winds around 15–20 kt [17–23 mph] will persist through this evening then ease to around 10 kt [12 mph] overnight. 

VICINITY OF KSFO...VFR CONDITIONS WILL PREVAIL THROUGH THIS
EVENING WITH CIGS ANTICIPATED TO RETURN TO KOAK AROUND 04Z AND
OVER KSFO AROUND 08Z TONIGHT. LOW CLOUDS WILL SCATTER OUT AROUND
15Z TO 17Z SUNDAY MORNING. MODERATE WEST WINDS AROUND 15 TO 20 KT
WILL PERSIST THROUGH THIS EVENING THEN EASE TO AROUND 10 KT
OVERNIGHT. [AVI2]

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

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

Monterey Bay terminals… MVFR [Marginal Visual Flight Rules] ceilings will return early to Monterey area terminals this afternoon and will rapidly lower to IFR [Instrument Flight Rules] by 02Z [7pm PDT] and LIFR [Low Instrument Flight Rules] around 04Z [9pm PDT]. Low clouds will scatter our around 17Z [10am PDT] Sunday morning. Light west winds. 

MONTEREY BAY TERMINALS...MVFR CIGS WILL RETURN EARLY TO MONTEREY
AREA TERMINALS THIS AFTERNOON AND WILL RAPIDLY LOWER TO IFR BY
02Z AND LIFR AROUND 04Z. LOW CLOUDS WILL SCATTER OUR AROUND 17Z
SUNDAY MORNING. LIGHT WEST WINDS. [AVI2]

Marine. As of 8:35am PDT Saturday… generally light northerly winds are expected this afternoon across the waters with higher wind speeds along the Big Sur coast. Wave heights and swell are forecast to decrease through the weekend. 

.MARINE...AS OF 8:35 AM PDT SATURDAY...GENERALLY LIGHT NORTHERLY
WINDS ARE EXPECTED THIS AFTERNOON ACROSS THE WATERS WITH HIGHER
WIND SPEEDS ALONG THE BIG SUR COAST. WAVE HEIGHTS AND SWELL ARE
FORECAST TO DECREASE THROUGH THE WEEKEND. [AVIA]

MTR Watches/Warnings/Advisories

.MTR WATCHES/WARNINGS/ADVISORIES...
.TNGT...SCA...PT PINOS TO PT PIEDRAS BLANCAS 0-10 NM
SCA...SF BAY UNTIL 9 PM [WARN]

Public Forecast: Sims; Aviation: CW; Marine: Rowe 

PUBLIC FORECAST: SIMS
AVIATION: CW
MARINE: ROWE [CRED]
VISIT US AT WWW.WEATHER.GOV/SANFRANCISCO [LINK]

Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/nwsbayarea www.twitter.com/nwsbayarea www.youtube.com/nwsbayarea 

FOLLOW US ON FACEBOOK, TWITTER, AND YOUTUBE AT:
WWW.FACEBOOK.COM/NWSBAYAREA
WWW.TWITTER.COM/NWSBAYAREA
WWW.YOUTUBE.COM/NWSBAYAREA [DISC]

Point Forecast

Half Moon Bay CA

Tonight Patchy fog after 2am. Otherwise, increasing clouds, with a low around 53°. WSW wind 7 to 11 mph.
Sunday Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 65°. West wind 7 to 13 mph.
Sunday Night Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 53°. West wind 7 to 13 mph.
Monday Patchy fog before 11am. Otherwise, mostly sunny, with a high near 65°. West wind 9 to 13 mph.
Monday Night Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 53°. West wind 8 to 11 mph.
Tuesday Patchy fog before 11am. Otherwise, mostly sunny, with a high near 63°.
Tuesday Night Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 52°.
Wednesday Patchy fog before 11am. Otherwise, mostly sunny, with a high near 64°.
Wednesday Night Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 52°.
Thursday Patchy fog before 11am. Otherwise, mostly sunny, with a high near 65°.
Thursday Night Patchy fog. Otherwise, mostly cloudy, with a low around 52°.
Friday Patchy fog. Otherwise, partly sunny, with a high near 66°.
Friday Night Patchy fog. Otherwise, partly cloudy, with a low around 53°.
Saturday Patchy fog. Otherwise, mostly sunny, with a high near 66°.
Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 53. West southwest wind 7 to 11 mph.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 65. West wind 7 to 13 mph.
Sunday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 53. West wind 7 to 13 mph.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 65. West wind 9 to 13 mph.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 53. West wind 8 to 11 mph.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 63.
Tuesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 52.
Wednesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 64.
Wednesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 52.
Thursday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 65.
Thursday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 52.
Friday
Patchy fog. Otherwise, partly sunny, with a high near 66.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 53.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 66.

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: