Saturday, September 13, 2008

Low pressure moving in

Synopsis...Analysis maps and satellite images indicate that a weak area of low pressure has developed in the Hudson Strait. This low pressure will move into the Davis Strait over the next 24 hours. Although weak, it will be strong enough to cause breezy conditions with rain and/or snow showers.

Sunday...Windy with periods of rain showers. Rain showers may possibly mix with sleet or snow northwest. Winds out of the south early, then changing to northerly as the low pressure passes. Sustained winds may reach gale strength (34+ knots) in the Davis Strait, but will generally be sustained at 20-30 knots in most locations with higher gusts. Strongest winds expected between 18 UTC 9/14 and 6 UTC 9/15. Roughest seas are expected to be in the eastern strait between 15-23 UTC with 2-3 meter significant wave heights expected. Air temperatures ranging from ~2 deg C northwest to 6 deg C southeast.

Monday...Improving conditions. Winds decreasing to 10-20 knots. Air temperatures 2-4 deg C.

Outlook...Today's forecast model runs are taking the remnants of Hurricane Ike south of the region. However, winds may still pick up as it passes to the south. Uncertainty is still very high at this time.

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