05 February 2008

KMSY Day 2 Discussion:

The vigorous system which will bring severe weather to the lower Mississippi Valley today will sweep through the forecast area early in the period. Very warm and moist airmass ahead of the approaching system could lead to decent precipitation totals. Precipitable water is close to 2" the system is strong enough to tap into a good amount. Models suggest a quarter to half inch of precipitation is expected with the passage and I tend to agree. Stiff southerly winds should keep moisture and temperature levels up until the point of passage. After the early morning passage, winds will shift around to the northwest, bringing cooler, drier air into the picture. Winds shouldn't stay very strong for long as high pressure settles in and the gradient weakens. There may be some remnant low clouds Wednesday morning, so the temperature shouldn't drop too much, even after the passage. Day 2 low should come at the end of the forecast period with clear skies and dry air. Day 2 maximum will be with max heating in the afternoon. The highest winds should come with the tightest pressure gradient during passage and possibly with associated thunderstorms. Could see winds near 20kts. Min: 45-50, Max: 58-63, Precip: 0.15" - 0.50"

Cianca

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