Models are running with surface cyclogenesis in the James Bay region (or slightly to the south) of Canada. Upper level dynamics support this as a broad trough has morphed into a desirable shape over the last 24 hours. The jet streak isn't all that it could be, but is forecast to strengthen.
The previous storm system will exit the area by the beginning of the forecast period, it's only lasting influence being the cold air advected during the previous period. Winds should have a westerly and southerly component for the next day, bringing in some warmer air. However, high clouds associated with approaching, strengthening system could limit heating. High temperatures should generally be expected in the upper 30's, maybe teasing 40ºF. As far as the low, it will come early in the period as the winds calm down a bit and before the clouds move in and inhibit cooling. Look for a minimum in the lower 20's. Winds should be generally light due to no significant pressure gradient and should reach a maximum during the afternoon mixing. Maximum 2min average should not exceed 15kts.
Precipitation is unlikely, though a brief flurry off of the lake is possible.
Cianca.
05 March 2008
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