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Showers prior to cooler temperatures

1 year 7 months 3 weeks ago Tuesday, December 01 2015 Dec 1, 2015 December 01, 2015 6:15 AM December 01, 2015 in Weather
Source: WBRZ Weather

Scattered showers will slowly push through South Louisiana and Southern Mississippi before thermometers fall back to numbers more becoming of December.

 

THE FORECAST:

 

Today and Tonight: Dreary weather is expected for Tuesday. Clouds will cover skies with off and on showers throughout the day. Rain will be fairly light, though enough to keep the roads damp and misty so take a few extra moments for your commute. With a cold front on the door step, expect temperatures to remain steady or fall slowly out of the upper 60s. Tonight, scattered showers will continue with a low in the mid 50s.

 

Looking Ahead: On Wednesday, showers will begin to wrap up from west to east. Some clearing is anticipated as the day progresses. Northerly winds will guide cooler air into the region and temperatures will be below average for the first time in over a week. The high will be barely back into the low 60s. A chilly night will follow with Thursday Morning lows in the upper 30s, followed by an afternoon in the upper 50s, despite ample sunshine.

 

THE SCIENCE: 

 

Forecast Discussion: A cold front is positioned from the Ohio River Valley southwestward to the South Central Louisiana Coast. A surface high pressure system in North-Central Texas is finally giving this very slow moving front a push into (and eventually through) the area. A robust plume of Pacific moisture continues to supply the cold front via the sub-tropical jet stream. In combination, the added moisture and slow eastward progression of the cold front will enhance rain development, promoting scattered showers into the afternoon hours. Stratiform in nature, the rain isn’t expected to be heavy. However, scattered showers will continue into the overnight hours. By Wednesday, the front will be well through the region and high pressure will continue to advance eastward thus clearing skies. Colder air will arrive and the conditions on Wednesday Night—clear skies and light northerly winds—will be favorable for a significant cool down. Thursday Morning lows will be in the 30s. High pressure in the Eastern Half of the United States with northeasterly surface winds will keep clear skies and cool temperatures in the forecast through Saturday.

 

 --Josh

 

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