Thursday, September 4, 2008

Gale Warnings in effect for Davis Strait




*** Weather Office Canada has issued a gale warning for the western and southern half of the Davis Strait as gale force winds of 34 to 47 knots are expected to occur. ***

** The map above highlights what to expect, with low pressure centers marked by the "L" and areas with strongest winds highlighed in the red areas. **

Synopsis...Analysis charts show a pair of low pressure centers, the strongest having a minimum central pressure of about 988 mb quickly approaching the area. Forecasts are for these two low pressure systems to continue to strengthen and merge over the Davis Strait between 00 and 06 UTC tonight (Friday). Winds will be strongest initially southeast of the Davis Strait near the Greenland coast through 06 UTC tonight (Friday) but will pick up drastically in the western and southern sections of the Davis Strait beginning around 00 UTC tonight (Friday).

The rest of today and Friday...Rapidly deteriorating conditions throughout the entire region. Sustained southerly to southeasterly winds of 35-40+ knots are expected south of the Davis Strait, near the Greenland coast from about 18 UTC today (Thursday) to 06 UTC tonight (Friday). As the low pressure approaches from the southwest, strong eastery winds will develop ahead of it just south of the Davis Strait around 21 UTC today (Thursday). When the low pressure begins to drift east, strong northerly winds will develop on its backside, with the strongest winds being in the western and southern Davis Strait regions beginning around 03-06 UTC Friday. Significant wave heights of over 4 meters possible, highest in the western Davis Strait. Rainy conditions, especially between now and 12 UTC tomorrow 9/5. Rain may mix with snow or sleet at times, especially late Friday.

Saturday...Northerly winds through the entire region sustained at 20-30 knots likely, with higher gusts. Scattered rain showers, possibly mixing with snow or sleet at times.

Outlook...Conditions expected to gradually improve beginning on Sunday.

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