Synopsis: A cold front extends WSW to mid USA in association with gale just off E'rn Newfoundland coast. Gale will strengthen into a storm as it tracks NE to 55N/38W thru 28th. The S'rn edge of cold front will merge with a remnant cold front that extends SW from to 40N/35W to 27N/55W. The storm will weaken considerably as it passes SE of Greenland on 29th. Meanwhile, its associated cold front will be weakening as it passes across Azores.
Broad ridging extends NE to 45N/20W from High near the Azores. High will remain nearly stationary as it strengthens slightly thru 28th, with moderate ridging then extending E to Gibraltar. The high and its associated ridging will then broaden as the high center drifts S to 30N thru 30th, before stalling thru 31st.
On the evening 28th, broad ridging will extend E to 35W from a second High near 43N/45W. This high will move NE to 50N/28W thru 30th, before tracking N into the far NE'rn Atlantic thru 1st /02nd.
Conclusion: A cold front that will be gradually moving E across a majority of the grids over the next couple of days. The strongest SW winds will be across Grids LL, NN and PP, with moderate to freshening winds expected. As the cold front passes over the next couple days, expect winds to gust into the lower and middle 20s across Grids LL, NN and PP, though the lowest wind gusts will be across Grid PP, as the cold front will weaken considerably by the time it reaches that grid. Across the S'rn Grids KK, MM and OO, winds will be more gentle to moderate with occasional gusts to near 20kts across Grids KK and MM as these grids will see less of a SW enhancement from the cold front. The largest swell will be found across the N'rn Grids, LL, NN and PP, with swell mainly up to 8ft at times, though a few 9ft swell sets are expected across LL and NN Grids JJ, LL and NN late 29th. Lighter swell will prevail across Grids KK, MM and OO, with swell mainly at or below 6ft over the course of the forecast period.
T =time in UTC
Winds in knots
ZONE LL:
27/12 T + 0: S-SW 13-18 GUSTS 26KTS. SEAS 3-4 SWELLS WSW-WNW 4-7FT (5SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS WSW @ 0.5KTS.
28/00 T + 12: S-SW 16-21 GUSTS 29KTS. SEAS 3-4 SWELLS SW-W 5-8FT (5SEC). MOSTLY CLDY PATCHY FOG. SHWRS/SQLLS. CRRNTS SSW @ 0.2KTS.
28/12 T + 24: SSW-WSW 12-17 GUSTS 25KTS. SEAS 3-4 SWELLS SW-W 6-9FT (5SEC). CLDY. SCATTERED SHWRS/SQLLS. CRRNTS NW @ 0.3KTS.
29/00 T + 36: W-NW-N(270 - 0) 13-18 GUSTS 26KTS. SEAS 3-4 SWELLS W-NW 5-8FT (9SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SE @ 0.5KTS.
29/12 T + 48: N-NE-E(0 - 90) 11-16 GUSTS 20KTS. SEAS 2-3 SWELLS WNW-NNW 5-8FT (9SEC). MOSTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS ESE @ 0.2KTS.
30/00 T + 60: E-SE 15-20 GUSTS 28KTS. SEAS 3-4 SWELLS NW-N 6-9FT (9SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SSW @ 0.8KTS.
ZONE KK:
27/12 T + 0: E-SE 07-12KTS. SEAS 1-2 SWELLS W-NW 2-5FT (6SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SE @ 0.7KTS.
28/00 T + 12: E-SE-S 07-12 GUSTS 16KTS. SEAS 1-2 SWELLS W-NW 2-5FT (5SEC). MOSTLY CLDY. CRRNTS SSE @ 0.5KTS.
28/12 T + 24: S-SW 08-13 GUSTS 17KTS. SEAS 2-3 SWELLS WNW-NNW 2-5FT (5SEC). PARTLY CLDY. CRRNTS SSE @ 0.8KTS.
29/00 T + 36: SSW-WSW 09-14 GUSTS 18KTS. SEAS 2-3 SWELLS W-NW 3-6FT (8SEC). MOSTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS SSE @ 0.3KTS.
29/12 T + 48: S-SW 09-14 GUSTS 18KTS. SEAS 2-3 SWELLS W-NW 3-6FT (9SEC). MOSTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS S @ 0.7KTS.
30/00 T + 60: SSW-WSW 10-15 GUSTS 19KTS. SEAS 2-3 SWELLS W-NW 3-6FT (9SEC). MOSTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS SSE @ 0.3KTS.
ZONE MM:
27/12 T + 0: SE-S 05-10KTS. SEAS 1-2 SWELLS W-NW 3-6FT (8SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS SW @ 0.1KTS.
28/00 T + 12: S-SW 06-11KTS. SEAS 1-2 SWELLS W-NW 2-5FT (7SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS W @ 0.5KTS.
28/12 T + 24: WSW-WNW 07-12KTS. SEAS 1-2 SWELLS WNW-NNW 2-5FT (7SEC). CLDY. ISLTD SHWRS. CRRNTS WNW @ 0.3KTS.
29/00 T + 36: WNW-NNW 07-12 GUSTS 16KTS. SEAS 1-2 SWELLS NW-N 2-5FT (8SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS NW @ 0.4KTS.
29/12 T + 48: W-NW 08-13 GUSTS 17KTS. SEAS 2-3 SWELLS WNW-NNW 3-6FT (8SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS W @ 0.3KTS.
30/00 T + 60: WNW-NNW 09-14 GUSTS 18KTS. SEAS 2-3 SWELLS WNW-NNW 3-6FT (9SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS N @ 0.4KTS.
ZONE NN:
27/12 T + 0: SE-S 06-11 GUSTS 15KTS. SEAS 1-2 SWELLS WSW-WNW 3-6FT (7SEC). PARTLY CLDY. CRRNTS WSW @ 0.3KTS.
28/00 T + 12: S-SW 11-16 GUSTS 24KTS. SEAS 2-3 SWELLS WSW-WNW 3-6FT (5SEC). MOSTLY CLDY. ISLTD SHWRS. CRRNTS WSW @ 0.4KTS.
28/12 T + 24: S-SW 13-18 GUSTS 26KTS. SEAS 3-4 SWELLS WSW-WNW 4-7FT (5SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS WSW @ 0.4KTS.
29/00 T + 36: S-SW 11-16 GUSTS 22KTS. SEAS 2-3 SWELLS WSW-WNW 5-8FT (8SEC). MOSTLY CLDY PATCHY FOG. ISLTD SHWRS/SQLLS. CRRNTS WSW @ 0.4KTS.
29/12 T + 48: SSW-WSW/VARY/NE 12-17 GUSTS 25KTS. SEAS 2-3 SWELLS W-NW 5-8FT (9SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS ENE @ 0.1KTS.
30/00 T + 60: NNE-ENE 11-16 GUSTS 24KTS. SEAS 2-3 SWELLS WNW-NNW 6-9FT (9SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SSW @ 0.4KTS.
ZONE OO:
27/12 T + 0: NE-E 06-11KTS. SEAS 1-2 SWELLS NNE-ENE 3-6FT (6SEC). PARTLY CLDY. ISLTD SHWRS. CRRNTS SE @ 0.4KTS.
28/00 T + 12: ENE-ESE 05-10KTS. SEAS 1-2 SWELLS N-NE 3-6FT (7SEC). MOSTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS S @ 0.3KTS.
28/12 T + 24: ENE-ESE 06-11KTS. SEAS 1-2 SWELLS N-NE 3-6FT (5SEC). CLEAR. CRRNTS SE @ 0.5KTS.
29/00 T + 36: ENE-ESE 06-11KTS. SEAS 1-2 SWELLS NW-N 2-5FT (8SEC). MOSTLY CLDY. CRRNTS SSE @ 0.3KTS.
29/12 T + 48: E-SE 05-10KTS. SEAS 1-2 SWELLS NW-N 2-5FT (8SEC). PARTLY CLDY. CRRNTS SSE @ 0.5KTS.
30/00 T + 60: ESE-SSE 06-11KTS. SEAS 1-2 SWELLS WNW-NNW 3-6FT (8SEC). CLDY. CRRNTS S @ 0.1KTS.
ZONE PP:
27/12 T + 0: ENE-ESE 04-09KTS. SEAS 1-2 SWELLS W-NW 3-6FT (7SEC). CLEAR. CRRNTS SW @ 0.5KTS.
28/00 T + 12: SE-S 06-11KTS. SEAS 1-2 SWELLS W-NW 3-6FT (7SEC). CLEAR. CRRNTS WSW @ 0.5KTS.
28/12 T + 24: SE-S 07-12 GUSTS 16KTS. SEAS 1-2 SWELLS W-NW 2-5FT (5SEC). PARTLY CLDY. CRRNTS WSW @ 0.7KTS.
29/00 T + 36: S-SW 08-13 GUSTS 19KTS. SEAS 2-3 SWELLS W-NW 3-6FT (8SEC). MOSTLY CLDY. ISLTD SHWRS. CRRNTS SW @ 0.6KTS.
29/12 T + 48: SSW-WSW 09-14 GUSTS 20KTS. SEAS 2-3 SWELLS W-NW 4-7FT (8SEC). MOSTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS WSW @ 0.4KTS.
30/00 T + 60: S-SW 10-15 GUSTS 23KTS. SEAS 2-3 SWELLS W-NW 5-8FT (10SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS WSW @ 0.7KTS.
ENDS
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