Weather Forecast 12/04/2015
Renault Captur has made it to Gibraltar Strait just as E’ly is flow is beginning to build. They will sail upwind out of the Strait and into the Alboran Sea, with seas also increasing. Conditions will be more moderate along the Spanish coast. Spirit of Hungary has slowed as the sub-tropical ridge has shifted south ahead of a cold front rotating around low pressure northeast of the Axores. This front will move south of 30N today, shifting winds N and allowing a more direct course toward Gibraltar for a time.
*** SYNOPSIS ***00Z SUNDAY (12-APR-2015)1) High pressure (1023mb) of the coast of Galicia Spain maintains a ridge south-southwest to just northwest of Madeira. A low pressure (1007mb) near 45N/21W with a cold front extending south-southwest to 33N/30W. The front moves south to 30N west of 17W through the day.2) NE trades south of 30N will back N with time weaken. NE winds along the Portuguese coast to Madeira and Canary Islands ease and back N with time. 3) Moderate to fresh E’ly through the Gibraltar Strait.4) High pressure over central Europe will support NE/E winds off the south and east coasts of Spain. Winds will be stronger offshore and from the Balearic Islands to the Algerian coast.5) Closer to the Spanish shore, overnight drainage winds will generally lead to lighter breeze of local N/NW winds. Daytime sea breezes will be present, but generally light under the influence of unfavorable NE gradient. 00Z MONDAY (13-APR-2015)1) A col region with light and variable winds just southeast of Madeira. A weak ridge will extend from the northwestern Canary Islands west along about 27N.2) Low pressure (1016mb) near 36N/19W with a front extending south to 20N/20W then west-southwest to 28N/27W. A push of N’ly breeze moves south in the wake of the front, veering NW across the Canaries and around the southern periphery of the low pressure.3) Light and variable winds along the Moroccan coast, with daytime sea breezes. A fresh E’ly flow out of the Gibraltar Strait and across the northern Gulf of Cadiz.4) High pressure over northwestern and south-central Europe drives a fresh NE/E flow south of Spain. Lighter conditions along the east coast and across the Balearic Sea. Sea breezes will be widespread along the coast in the afternoon.00Z TUESDAY (14-APR-2015)1) Low pressure (1016mb) northeast of Madeira near 35N/14W. A cold front extends from the low south to Lanzarote southwest to 24N/23W to 24N/35W. Winds N’ly west of the low, backing NW across Madeira to 30N and the waters west of the Canary Islands.2) East of the cold front and low, mainly light winds from along the Moroccan coast north to about 35N in the Gulf of Cadiz. At and north of 25N, winds E’ly and generally moderate in strength.3) Fresh to strong E’ly flow through Gibraltar Strait. 4) High pressure over the western Med will support a fresh to strong NE/E flow from Palma to south of Almeria. Backed gradient flow (NE) may result in lighter winds off Gibraltar to Almeria. Lighter winds along the Spanish coast, with a good chance of afternoon sea breezes.5) Light NE winds Gulf of Valencia. Off Barcelona, winds will be light and variable, with local sea breezes dominant there.**************************************General Forecast along race route*** SUNDAY (12-APR-2015) **** 27N to 32N and 28W to 18W *WIND: North of 30N, W 10-15 tending N 15-20 gusting 25. South of 30N, Light and variable becoming W 5-10, increasing to 10-15 near 30N.SEAS: 1m increasing 2m north of 30N.WEATHER: Mostly cloudy with showers and a few squalls.>>>>>* Gulf of Cadiz *WIND: North of 35N becoming E 20-30 downwind of Gibraltar, easing 10-20 with distance downwind to the west.SEAS: Generally 1m, but short, rough chop near the strait.WEATHER: Partly cloudy.* Gibraltar Strait*WIND: Building E 20-30 downwind of Gibraltar, easing 10-20 with distance downwind to the west.SEAS: Generally 1m, but short, rough chop within the strait, especially where wind opposes tide.WEATHER: Partly cloudy.* Alboran Sea*WIND: E 10-20. Lighter within 20nm of the Spanish coast, except tending SE with afternoon sea breezes.SEAS: Generally 1m except less neat the Spanish coast.WEATHER: Partly cloudy.>>>>>