Severe Thunderstorms Possible for the Central Gulf Coast; More Storms Move into the West

Strong to severe thunderstorms will be possible over the next several days along the central Gulf Coast and portions of the southeast. Storms may contain damaging winds, large hail and isolated tornadoes. Meanwhile, more storms will bring heavy rain, with heavy snow in the mountains to California and the southern Rockies through the weekend.
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Last Update: 818 AM PST FRI JAN 20 2017

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Los Angeles/Oxnard, CA Local Forecast Office

56NM SSW Santa Maria CA

Marine Zone Forecast


...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...
Synopsis: AT 15Z...OR 7 AM PST...A 975 MB W WAS 300 NM W OF PORTLAND WITH A COLD FRONT EXTENDING WELL SOUTH OF THE LOW OFF THE CALIFORNIA COAST. THE FRONT WILL MOVE ACROSS THE COASTAL WATERS TODAY. ANOTHER STORM SYSTEM IS EXPECTED TO AFFECT THE COASTAL WATERS SUNDAY INTO MONDAY. THESE STORMS WILL BRING STRONG AND GUSTY SOUTH TO WEST WINDS TO THE WATERS AT TIMES THROUGH MONDAY. THUNDERSTORMS ARE POSSIBLE TODAY. A VERY LARGE LONG PERIOD WEST SWELL WILL MOVE THROUGH THE WATERS THROUGH MONDAY WITH THE PEAK SWELL COMING TONIGHT AND SATURDAY.

Today
S to SW winds 15 to 25 kt...increasing to 20 to 30 kt with gusts to 35 kt. Combined seas 14 to 15 ft dominant period 16 seconds...building to 16 ft dominant period 17 seconds in the afternoon. Rain and slight chance of tstms.
Tonight
W winds 20 to 30 kt with gusts to 40 kt. Combined seas 17 to 20 ft dominant period 17 seconds...building to 18 to 22 ft dominant period 17 seconds after midnight. Showers likely.
Sat
W winds 15 to 25 kt with local gusts to 35 kt...becoming 15 to 20 kt in the afternoon. Combined seas 21 to 25 ft dominant period 17 seconds. Chance of showers in the morning...then slight chance of showers.
Sat Night
W winds 10 to 15 kt...becoming SE 15 to 25 kt with local gusts to 30 kt after midnight. Strongest northwestern portion. Combined seas 19 to 23 ft dominant period 18 seconds...subsiding to 17 to 19 ft dominant period 18 seconds after midnight. Slight chance of rain in the evening...then rain.
Sun
S winds 20 to 25 kt with gusts to 35 kt. Combined seas 16 to 18 ft dominant period 17 seconds...subsiding to 14 to 16 ft dominant period 17 seconds in the afternoon. Rain.
Sun Night
W winds 20 to 30 kt. Combined seas 14 to 17 ft dominant period 16 seconds. Showers in the evening...then showers likely and slight chance of tstms.
Mon
NW winds 15 to 25 kt with gusts to 30 kt. Combined seas 14 to 17 ft. Chance of showers and slight chance of tstms.
Tue
N winds 15 to 20 kt with gusts to 25 kt. Combined seas 12 to 15 ft. Chance of showers.
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Last Update: 818 AM PST FRI JAN 20 2017
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