Sunrise 6:15 AM   Sunset 7:53 PM Moonrise 9:07 PM   Moonset 5:58 AM

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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 850 Pm Pdt Wed Apr 24 2024
Tonight - SW winds 10 to 15 knots. Thu - W winds 15 to 20 knots with gusts up to 25 knots. Thu night - W winds 15 to 20 knots with gusts up to 30 knots. Fri - W winds 10 to 20 knots with gusts up to 25 knots. Fri night - W winds 10 to 20 knots with gusts up to 25 knots. Sat - W winds 10 to 15 knots. Sat night - W winds 10 to 15 knots. Sun - W winds 10 to 15 knots with gusts up to 25 knots. Mon - W winds 10 to 15 knots with gusts up to 25 knots.

PZZ500 850 Pm Pdt Wed Apr 24 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
gentle to moderate nw winds continue into Friday with occasional moderate to fresh gusts possible throughout portions of the coastal waters. Gustier fresh to strong winds with near gale force and isolated gale force gusts possible heading into Friday as an upper level trough and surface low pressure system move inland. Moderate period northwest swell will continue to move through the waters through Saturday. Light long period southerly swell continues through end of forecast period.

FXUS66 KSTO 242032 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 132 PM PDT Wed Apr 24 2024

Synopsis
Cool and unsettled weather this week. A chance for afternoon showers and thunderstorms over the mountains today. Precipitation chances increase Thursday afternoon and Friday as a weather system moves through, best chances in the foothills and mountains.

Discussion
Afternoon GOES satellite imagery shows partly to mostly cloudy skies across interior NorCal. Near to slightly below average temperatures are forecast this afternoon. NorCal remains in between systems as upstream short-wave energy approaches from the Gulf of Alaska and the closed low moves into SoCal later today.
Another round of isolated showers or thunderstorms will be possible today, mainly over the northern mountains and the northern Sierra south of Highway 50. The NBM indicates a 10-20% chance of isolated thunderstorms this afternoon.

Ensembles show the next wave sliding southward later Thursday into Friday, bringing the potential for light showers. Best shower chances will be over the foothills and mountains. Little to no impacts are expected with this system. WPC guidance indicates less than 0.10" in the Valley, and generally around 0.10-0.50" over the foothills and mountains. A few inches of snowfall accumulation will be possible over the higher elevations (snow levels above 6-7k ft) in the Sierra, but travel impacts will likely be minimal. The NBM projects a 15-30% probability of thunderstorm development Friday afternoon and evening. Lightning, brief heavy rain, gusty winds, and small hail will be possible with any thunderstorms that develop.

Dry conditions return Saturday as riding from the eastern Pacific builds into the region. Forecast highs will be in the low to 70s across the Valley, 60s to low 70s over the foothills, and upper 40s to low 60s over the mountains.

.EXTENDED DISCUSSION (Sunday THROUGH Wednesday)...
Dry weather Sunday as weak short wave ridging moves through interior NorCal. Cluster analysis is in decent agreement on general weak ridging/zonal flow remaining across NorCal into next week. By mid next week, ensembles diverge and variation of solutions spreads, so confidence beyond Monday is somewhat low.
Potential scenarios being displayed in the clusters includes continued zonal flow with ridging centered across the southwest and troughing to our north across the PacNW, and then variability on how deep the northern trough could dig and associated timing difference with it. Stay tuned as details become more clear for the forecast next week.

//Peters

AVIATION
VFR conditions over next 24 hrs except for MVFR/IFR conditions in isolated showers or thunderstorms over the mountains through 03z-06z Thursday. A weather system will bring showers to interior NorCal Thursday afternoon-Friday, with areas of MVFR/IFR conditions after 18z Thursday. Surface wind mainly below 12 kts except vicinity of Delta with southwesterly winds up to 18 kts after 00z Thursday. Increasing southwesterly winds after 18z Thursday, mainly over the mountains and vicinity of Delta.

STO WATCHES/WARNINGS/ADVISORIES
None.

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Georgiana Slough entrance
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Thu -- 12:36 AM PDT     0.98 feet Low Tide
Thu -- 06:09 AM PDT     3.52 feet High Tide
Thu -- 06:16 AM PDT     Sunrise
Thu -- 06:58 AM PDT     Moonset
Thu -- 02:09 PM PDT     -0.11 feet Low Tide
Thu -- 07:52 PM PDT     Sunset
Thu -- 08:23 PM PDT     2.38 feet High Tide
Thu -- 10:06 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Georgiana Slough entrance, Mokelumne River, California, Tide feet

Sherman Island (East)
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Thu -- 01:55 AM PDT     1.05 knots Max Flood
Thu -- 05:01 AM PDT     -0.00 knots Slack
Thu -- 06:17 AM PDT     Sunrise
Thu -- 06:59 AM PDT     Moonset
Thu -- 08:22 AM PDT     -1.50 knots Max Ebb
Thu -- 12:56 PM PDT     0.00 knots Slack
Thu -- 04:20 PM PDT     0.80 knots Max Flood
Thu -- 07:09 PM PDT     -0.00 knots Slack
Thu -- 07:53 PM PDT     Sunset
Thu -- 09:01 PM PDT     -0.46 knots Max Ebb
Thu -- 10:07 PM PDT     Moonrise
Thu -- 11:05 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Sherman Island (East), California Current, knots

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