31 January 2008

New Orleans, Day 4 Forecast Discussion

Day 3's strong low will exit the region by the beginning of the Day 4 forecast period. A few clouds may linger, but the dry air pushing in from the northwest should quickly push out remaining clouds. Dry air and clearing skies should allow for significant cooling overnight. In addition, moisture on the ground from Day 3's likely precipitation could further exacerbate cooling. Lows in the upper 30's will not be surprising, though breezy winds could keep the air mixed enough to hover around the 40º mark, especially if they maintain a more northerly wind component, bringing them over Lake Pontchartrain.

Daytime winds will eventually weaken. Skies should be clear for most of the day as the air will be farily stable. High temperatures may have trouble recovering due to a colder airmass. With calmer winds later, the high temperature may come late in the afternoon and should approach 60º. Models are keeping the high closer to 55º, however. Toward the end of the forecast period, the winds should switch around to the south as a new low forms in the panhandles.

Cianca

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