A HIGH PRESSURE RIDGE
EXTENDS NE FROM NEAR 35W THRU AZORES TO N'RN IBERIA, BISCAY, UK AND
FRANCE. THIS MODERATELY-STRONG RIDGE WILL MOVE LITTLE TONIGHT THRU 21ST
AND ALSO EXPAND SE FROM CONTINENTAL EUROPE AND COVER THE BALEARIC AND
TYRRHENIAN SEAS ON 18TH THRU 21ST.
A DEVELOPING LOW IS CENTERED NEAR CAPE SAINT VINCENT, AND IS EMBEDDED
WITHIN A THERMAL TROUGH OF LOW PRESSURE COVERING MOROCCO AND S'RN
IBERIA. LOW WILL STRENGTHEN SLOWLY AS IT MOVES WNW'WARD TO ATLANTIC NEAR
40N/15W BY 18TH. WILL WEAKEN GRADUALLY LATER ON 18TH THRU 21ST. THE
THERMAL TROUGH OF LOW PRESSURE OVER MOROCCO AND S'RN IBERIA WILL WEAKEN
SLOWLY THRU 21ST.
WINDS WILL TEND W'LY IN ZONE DDD THRU 18TH. WINDS WILL TEND STRONGEST
AND NE-E'LY IN ZONES HHH AND III. SWELLS WILL BE SHORT IN PERIOD ACROSS
ALL ZONES AND TEND HIGHEST (UP TO 6-9 FEET) IN ZONES HHH AND III DUE TO
RIDGE/LOW INTERACTION, WITH SIGNIFICANTLY HIGHER SWELLS IN S'RN HALF OF
ZONE HHH (UP TO 12FEET). RECOMMEND REMAINING IN N'RN HALF OF ZONE HHH
AND III TO AVOID HIGHER SWELLS IN SOUTHERN HALF OF ZONES.
ZONE DDD FORECAST:
17/06 GMT(T + 0): WINDS SW-W(225 - 270) 10-19 GUSTS 24KTS. SEAS 2-4
SWELLS W-NW 2-4FT (4SEC). SKIES CLEAR. CURRENTS FROM N @ 1KTS.
17/18 GMT(T + 12): WINDS SW-W(225 - 270) 08-13KTS. SEAS 0-2 SWELLS W-NW 1-3FT (2SEC). CURRENTS FROM N @ 1.3KTS.
18/06 GMT(T + 24): WINDS WSW-WNW(248 - 293) 07-12KTS. SEAS 0-2 SWELLS W-NW 1-3FT (3SEC). CURRENTS FROM N @ 0.9KTS.
18/18 GMT(T + 36): WINDS WSW-WNW(248 - 293) 09-14KTS. SEAS 1-3 SWELLS W-NW 1-3FT (2SEC). CURRENTS FROM N @ 1.3KTS.
ZONE HHH FORECAST:
17/06 GMT(T + 0): WINDS ENE-ESE(68 - 113) 16-21KTS. SEAS 3-4 SWELLS
ENE-ESE 6-9FT (4SEC). SKIES CLEAR. CURRENTS FROM ESE @ 0.1KTS.
17/18 GMT(T + 12): WINDS NE-E(45 - 90) 18-23KTS. SEAS 3-5 SWELLS ENE-ESE 6-9FT (4SEC). CURRENTS FROM ESE @ 0.4KTS.
18/06 GMT(T + 24): WINDS NE-E(45 - 90) 17-22KTS. SEAS 3-5 SWELLS ENE-ESE 6-9FT (4SEC). CURRENTS FROM E @ 0.3KTS.
18/18 GMT(T + 36): WINDS NE-E(45 - 90) 20-25KTS. SEAS 3-5 SWELLS ENE-ESE 6-9FT (4SEC). CURRENTS FROM ESE @ 0.3KTS.
ZONE III FORECAST:
17/06 GMT(T + 0): WINDS NE-E(45 - 90) 18-22KTS. SEAS 3-4 SWELLS
NE-E 5-8FT (3SEC). SKIES CLEAR. CURRENTS FROM SSW @ 0.7KTS.
17/18 GMT(T + 12): WINDS NE-E(45 - 90) 16-21KTS. SEAS 3-4 SWELLS NE-E 5-8FT (3SEC). CURRENTS FROM S @ 0.8KTS.
18/06 GMT(T + 24): WINDS NE-E(45 - 90) 16-21KTS. SEAS 3-5 SWELLS NE-E 5-8FT (2SEC). CURRENTS FROM SSE @ 0.7KTS.
18/18 GMT(T + 36): WINDS NE-E(45 - 90) 14-19KTS. SEAS 3-5 SWELLS NE-E 5-8FT (2SEC). CURRENTS FROM SSE @ 0.6KTS.
ENDS
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