Expanded California Fire Weather Threats; Unsettled Across the West

A storm system will impact the western third of the U.S.. Strong, gusty winds will increase Fire Weather threats across much of western and central California. Rain and mountain snows can be expected across the Pacific Northwest and Northern Rockies, with wintry conditions in the Great Basin and High Plains. Accumulating snows will also continue across the Upper Midwest to the Northeast.
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Last Update: 833 PM PST Fri Dec 15 2017

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Los Angeles/Oxnard, CA Local Forecast Office

56NM SSW Santa Barbara CA

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST SATURDAY...
...GALE WARNING IN EFFECT FROM 3 AM PST SATURDAY THROUGH LATE SATURDAY NIGHT...
Synopsis: PZZ600-161145- 833 PM PST Fri Dec 15 2017 .Synopsis for the southern California coast and Santa Barbara Channel including the Channel Islands National Marine Sanctuary and National Park...at 04Z...or 8 PM PST...A 1035 MB high was located 500 NM W of Portland Oregon. A weak trough of low pressure was located along the CA coast. Increasing NW flow is expected in the outer and northern waters tonight into the weekend as high pressure builds into the eastern Pacific. Gale force winds are expected across the outer waters late tonight through Sat night. Gusty NE winds are likely near shore from Ventura to Santa Monica Sat night and Sun. Smoke from the Thomas fire may locally reduce visibilities down to 2 NM for portions of the coastal waters S of Point Conception at least through Sat. Patchy dense fog with visibilities 1 NM or less is also possible tonight in the outer waters. $$

Tonight
NW winds 15 to 25 kt, becoming 20 to 30 kt with gusts to 35 kt late, strongest NW of san nicolas island. Combined seas 6 to 8 ft dominant period 16 seconds, building to 9 to 11 ft dominant period 16 seconds late. Patchy dense fog in the evening. Patchy dense fog, with vsby 1 nm or less.
Sat
NW winds 20 to 30 kt with gusts to 35 kt, strongest NW of san nicolas island. Combined seas 9 to 11 ft dominant period 15 seconds, building to 12 to 15 ft dominant period 13 seconds in the afternoon. Patchy fog in the morning.
Sat Night
NW winds 20 to 30 kt with gusts to 35 kt, strongest NW of san nicolas island, becoming N 15 to 25 kt late. Combined seas 12 to 15 ft dominant period 12 seconds.
Sun
N to NE winds 15 to 25 kt with local gusts to 30 kt, becoming NW 10 to 20 kt in the afternoon. Combined seas 12 to 15 ft dominant period 13 seconds, subsiding to 9 to 12 ft dominant period 13 seconds.
Sun Night
N winds 10 to 15 kt, becoming NE 10 to 15 kt late. Wind waves 2 ft or less. W swell 7 to 9 ft at 12 seconds.
Mon
NE winds 10 to 15 kt, becoming variable 10 kt or less in the afternoon. Wind waves 2 ft or less. W swell 5 to 7 ft.
Mon Night
Winds variable 10 kt or less. Wind waves 2 ft or less. W swell 5 to 7 ft.
Tue
Winds variable 10 kt or less, becoming NW 10 to 15 kt. Wind waves 2 ft or less. W swell 5 to 7 ft.
Wed
NW winds 10 to 20 kt early, becoming 15 to 25 kt with gusts to 30 kt. Combined seas 7 to 9 ft.
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ABOUT THIS FORECAST

Last Update: 833 PM PST Fri Dec 15 2017
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