Rainfall departures for the month:
Abnormally dry conditions have set in across Central Alabama including the counties of Tuscaloosa, Bibb, Chilton, Jefferson, St. Clair, Talladega, Clay, Cleburn, Randolph, Tallapoosa and Chambers according to the Climate Prediction Center.
Thankfully, a wetter pattern develops as August begins...
An upper level trough will remain entrenched across the eastern U.S. and we'll see disturbances moving through the base of the trough from Friday and through the weekend. These disturbances will enhance lift across the area and interact with moisture in the atmosphere to cause showers and storms to develop.
STEERING WINDS AT 500 MB OR HALF WAY UP IN THE ATMOSPHERE
How much rain could we see between now and the weekend?
Both computer models show widespread amounts of .50" to 1.50". Looking at the precipitation patterns below you can clearly make out the influence of the trough. The GFS is a bit more aggressive with rainfall amounts than the NAM and there is still some uncertainty regarding the future strength of the trough which will mean the difference between lighter and heavier amounts.
NAM ACCUMULATED PRECIPITATION
Overall, it looks unsettled with a decent chance for a passing shower or storm between Friday and Sunday. Early next week, a typical summer time pattern develops with afternoon pop ups possible each day.
We'll continue to keep you posted on upcoming rain chances on Fox 6 and on the blog. Plan on watering the lawn and garden the next two days.
Jill Gilardi Fox 6 Meteorologist