01/07 – Brantly’s “Cloudy, Breezy, and Cooler” Thursday Morning Forecast
Rain will rapidly come to an end from west to the east by daybreak or shortly after for the entire forecast as low pressure tracks through north Louisiana bringing an associated cold front through the area this morning. Skies will slowly begin to clear out by this afternoon with much cooler temperatures behind the front. High pressure will build in through the end of the week bringing dry and well below normal temperatures to the forecast area for Friday and Saturday. Low temperatures will likely drop to near or below freezing Friday night into Saturday morning as winds relax and clear skies remain in place in many places along and north of the I-10 and I-12 corridors.
The primary forecast concern will be a strong low pressure system and associated cold front passing through the area Sunday into Monday. In advance of this system on Saturday, cooler air will continue to move into the region on the back of northerly winds. As a result, temperatures will be a good 10 to 15 degrees below normal for this time of the year with highs only rising into the lower 50s for the next few days. High level cloud cover will likely increase Saturday night, but in the low to mid-levels will remain quite dry. As a result, temperatures should drop quickly overnight with lows dipping into the lower 30s over much of the area.
Conditions will begin to deteriorate throughout the day on Sunday as the next system pushes into the area. In advance of this low pressure system, strong southerly winds will develop, helping bring in moisture from the Gulf. Cloud cover should thicken and build throughout the day Sunday, and expect to see a few showers develop over the Atchafalaya Basin by Sunday afternoon.
The latest computer models continue to indicate that Sunday night into Monday morning conditions look favorable for a wintry mix of rain, sleet, and snow to impact much of Southwest Mississippi and the northern portions of the Florida Parishes of Louisiana.
Temperatures will quickly warm back into the 40s and lower 50s over much of the area by Monday afternoon, and this will transition any lingering precipitation back over to rain in the late morning hours. By the afternoon, dry air moves in and will lead to an end to the precipitation and gradually clearing skies.