Dangerous Heat Building in the South; Severe Storms From Plains To MS Valley

Intensifying high pressure is producing dangerous heat and humidity in the south-central U.S. with heat indexes possibly exceeding 110. Triple digit heat will also continue for some western areas. Elsewhere, a front moving through the central U.S. may produce severe thunderstorms and heavy rainfall in parts of the Plains and MS Valley through Friday.
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Last Update: 237 PM PDT Thu Jul 19 2018

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Medford, OR Local Forecast Office

18NM SSW Florence OR

Marine Zone Forecast

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE SATURDAY NIGHT...

Synopsis: High pressure offshore and a thermal trough at the coast will continue to bring gusty northerly winds with steep to very steep wind driven seas through Saturday night. Winds will be weakest near shore south of Brookings, but seas will still be steep from short period fresh swell. The thermal trough will diminish and shift inland late Saturday with improving conditions.

Tonight
N wind 20 to 25 kt. Wind waves 4 to 5 ft... Building to 5 to 7 ft. NW swell 2 to 3 ft at 9 seconds...shifting to the SW 1 ft at 17 seconds and W 1 ft at 12 seconds in the evening, then...becoming SW 1 ft at 18 seconds and W 1 ft at 12 seconds after midnight.
Fri
N wind 20 to 25 kt. Wind waves 5 to 8 ft. Mixed swell SW 1 to 2 ft at 17 seconds and W 1 ft at 11 seconds.
Fri Night
N wind 20 to 25 kt. Wind waves 5 to 8 ft. Mixed swell SW 1 ft at 16 seconds and NW 1 ft at 10 seconds.
Sat
N wind 15 to 25 kt. Wind waves 4 to 7 ft. SW swell 1 ft... Becoming SW 1 ft and W 1 ft in the afternoon.
Sat Night
N wind 20 to 25 kt...easing to 15 to 20 kt after midnight. Wind waves 5 to 6 ft. SW swell 1 ft.
Sun
N wind 10 to 20 kt. Wind waves 3 to 5 ft. SW swell 1 to 2 ft.
Sun Night
N wind 15 to 20 kt...easing to 10 kt after midnight. Wind waves 4 to 6 ft. SW swell 2 ft.
Mon
N wind 10 to 15 kt. Wind waves 3 to 4 ft... Becoming 2 ft or less. SW swell 2 ft.
Tue
N wind 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon and evening, then...becoming 2 ft or less after midnight. S swell 3 ft.
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ABOUT THIS FORECAST

Last Update: 237 PM PDT Thu Jul 19 2018
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