Synopsis: Elongated cold front extends SW from 60N/25W to 31N/55W in association with a gale near S Greenland. The S edge of this front will lift well north of Azores by 27th, as a Low develops near 55N/25W.
A second Low with a cold front extending W into NE USA will strengthen to a storm as it moves off the Newfoundland coast the midday 26th. This storm will gradually weaken into a gale as it moves SE of S Greenland on 29th, as its associated cold front moves E across Azores, weakening.
Broad ridging currently extends SW to 30N/40W from High over Azores. High will strengthen slightly thru 27th, broadening thru 30th as it move S to near 30N, with a moderate ridge axis then extending E to Gibraltar.
A very broad trough of low pressure currently extends from N Algeria NW across the Iberian Peninsula into Biscay. This trough will organize into a weak Low today over Biscay, where it will remain stationary and dissipate thru 28th.
Conclusion: A cold front 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 II, JJ, LL and NN, with moderate to freshening winds expected. As the cold front passes, expect winds to gust into the middle 20s across Grids II, JJ and NN, (briefly gust into lower 30s, evening of 27th across Grid LL). Across Grids KK and MM, winds will be more gentle to moderate with occasional gusts to near 20kts as the cold front will weaken and begin to lift N around the time the front reaches these two grids. The largest swell will be found across Grids JJ, LL and NN as this will be the grids that will see the strongest influence from this front. Swell across these grids are expected to briefly reach as high as 9ft on 28th, before lowering for a brief time on 29th. Lighter swell will prevail across Grids II, KK and MM with mainly 4-7ft swell expected during the course of the forecast period.
T = time in UTC
Winds in knots
ZONE II:
26/12 T + 0: S-SW 11-16 GUSTS 24KTS. SEAS 2-3 SWELLS W-NW 4-7FT (7SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS W 0.6KTS.
27/00 T + 12: S-SW 09-14 GUSTS 20KTS. SEAS 2-3 SWELLS WSW-WNW 3-6FT (5SEC). MOSTLY CLDY. CRRNTS WNW 0.7KTS.
27/12 T + 24: S-SW 13-18 GUSTS 22KTS. SEAS 3-4 SWELLS WSW-WNW 3-6FT (5SEC). PARTLY CLDY. CRRNTS WSW 0.7KTS.
28/00 T + 36: SSW-WSW 13-18 GUSTS 22KTS. SEAS 3-4 SWELLS WSW-WNW 3-6FT (5SEC). CLEAR. CRRNTS WNW 0.5KTS.
28/12 T + 48: S-SW 12-17 GUSTS 21KTS. SEAS 2-3 SWELLS WSW-WNW 3-6FT (7SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS W 0.8KTS.
29/00 T + 60: SSW-WSW 10-15 GUSTS 19KTS. SEAS 2-3 SWELLS W-NW 3-6FT (9SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS W 0.5KTS.
ZONE JJ:
26/12 T + 0: S-SW 10-15 GUSTS 19KTS. SEAS 2-3 SWELLS SW-W 5-8FT (7SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS S 0.8KTS.
27/00 T + 12: S-SW 11-16 GUSTS 20KTS. SEAS 2-3 SWELLS SW-W 4-7FT (6SEC). CLDY. ISLTD SHWRS. CRRNTS SSE 0.4KTS.
27/12 T + 24: S-SW 14-19 GUSTS 27KTS. SEAS 3-4 SWELLS SSW-WSW 4-7FT (5SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS S 0.7KTS.
28/00 T + 36: SW-W 14-19 GUSTS 27KTS. SEAS 3-4 SWELLS SW-W 7-10FT (5SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SSE 0.3KTS.
28/12 T + 48: W-NW-N 10-15 GUSTS 19KTS. SEAS 2-3 SWELLS W-NW 6-9FT (10SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SSE 0.6KTS.
29/00 T + 60: NNE-ENE 12-17 GUSTS 21KTS. SEAS 2-3 SWELLS NW-N 5-8FT (9SEC). CLDY. ISLTD SHWRS. CRRNTS SE 0.7KTS.
ZONE KK:
26/12 T + 0: N-NE 05-10KTS. SEAS 1-2 SWELLS WNW-NNW 4-7FT (7SEC). PARTLY CLDY. ISLTD SHWRS. CRRNTS ESE 0.5KTS.
27/00 T + 12: NE-E 07-12KTS. SEAS 1-2 SWELLS W-NW 3-6FT (7SEC). PARTLY CLDY. ISLTD SHWRS. CRRNTS SE 0.7KTS.
27/12 T + 24: ESE-SSE 08-13 GUSTS 17KTS. SEAS 2-3 SWELLS W-NW 2-5FT (6SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SE 0.7KTS.
28/00 T + 36: SE-S 07-12 GUSTS 16KTS. SEAS 1-2 SWELLS W-NW 2-5FT (8SEC). PARTLY CLDY. ISLTD SHWRS. CRRNTS SSE 0.5KTS.
28/12 T + 48: S-SW 09-14 GUSTS 18KTS. SEAS 2-3 SWELLS WNW-NNW 3-6FT (8SEC). CLEAR. CRRNTS SSE 0.8KTS.
29/00 T + 60: SSW-WSW 10-15 GUSTS 19KTS. SEAS 2-3 SWELLS W-NW 4-7FT (8SEC). CLDY. CRRNTS SE 0.5KTS.
ZONE LL:
26/12 T + 0: S-SW 09-14 GUSTS 22KTS. SEAS 2-3 SWELLS WSW-WNW 6-9FT (7SEC). MOSTLY CLDY. CRRNTS SW 0.5KTS.
27/00 T + 12: SSW-WSW 08-13 GUSTS 19KTS. SEAS 2-3 SWELLS WSW-WNW 4-7FT (6SEC). CLDY. CRRNTS SW 0.1KTS.
27/12 T + 24: S-SW 13-18 GUSTS 26KTS. SEAS 3-4 SWELLS WSW-WNW 4-7FT (5SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS WSW 0.4KTS.
28/00 T + 36: S-SW 15-20 GUSTS 32KTS. SEAS 3-4 SWELLS SW-W 4-7FT (6SEC). MOSTLY CLDY. SCATTERED SHWRS/SQLLS. CRRNTS SSW 0.3KTS.
28/12 T + 48: SSW-WSW/VARY/N 13-18 GUSTS 28KTS. SEAS 3-4 SWELLS SW-W 6-9FT (6SEC). MOSTLY CLDY. SCATTERED SHWRS/SQLLS. CRRNTS WNW 0.4KTS.
29/00 T + 60: N-NE 12-17 GUSTS 25KTS. SEAS 2-3 SWELLS W-NW 5-8FT (9SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS ESE 0.4KTS.
ZONE MM:
26/12 T + 0: N-NE 05-10KTS. SEAS 1-2 SWELLS N-NNE 2-5FT (6SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS SSW 0.2KTS.
27/00 T + 12: NNE-ENE 07-12KTS. SEAS 1-2 SWELLS WNW-NNW 3-6FT (7SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS WSW 0.3KTS.
27/12 T + 24: E-SE-S 07-12KTS. SEAS 1-2 SWELLS W-NW 3-6FT
(8SEC). MOSTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS SW 0.3KTS.
28/00 T + 36: SSW-WSW 06-11KTS. SEAS 1-2 SWELLS W-NW 2-5FT (9SEC). PARTLY CLDY. ISLTD SHWRS/SQLLS. CRRNTS W 0.3KTS.
28/12 T + 48: SSW-WSW 06-11KTS. SEAS 1-2 SWELLS WNW-NNW 2-5FT (8SEC). MOSTLY CLDY. CRRNTS SW 0.2KTS.
29/00 T + 60: WSW-WNW 07-12 GUSTS 16KTS. SEAS 1-2 SWELLS WNW-NNW 3-6FT (8SEC). CLEAR. CRRNTS WNW 0.4KTS.
ZONE NN:
26/12 T + 0: S-SW 06-11 GUSTS 15KTS. SEAS 1-2 SWELLS W-NW 4-7FT (6SEC). CLDY. ISLTD SHWRS. CRRNTS WSW 0.1KTS.
27/00 T + 12: S-SW 06-11 GUSTS 15KTS. SEAS 1-2 SWELLS W-NW 4-7FT (8SEC). MOSTLY CLDY. ISLTD SHWRS. CRRNTS WNW 0.2KTS.
27/12 T + 24: S-SW 08-13 GUSTS 17KTS. SEAS 2-3 SWELLS WSW-WNW 3-6FT (7SEC). PARTLY CLDY. ISLTD SHWRS. CRRNTS SW 0.3KTS.
28/00 T + 36: S-SW 13-18 GUSTS 26KTS. SEAS 3-4 SWELLS W-NW 4-7FT (7SEC). CLEAR. CRRNTS W 0.3KTS.
28/12 T + 48: SSW-WSW 14-19 GUSTS 27KTS. SEAS 3-4 SWELLS WSW-WNW 5-8FT (7SEC). CLDY. ISLTD SHWRS/SQLLS. CRRNTS W 0.4KTS.
29/00 T + 60: S-SW 12-17 GUSTS 25KTS. SEAS 2-3 SWELLS WSW-WNW 6-9FT (8SEC). CLDY PATCHY FOG. ISLTD SHWRS/SQLLS. CRRNTS W 0.4KTS.
ENDS
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