Weather

What happened last night and the big changes coming

The rare June CAD event (”the wedge”) is taking hold today after the front moved in and then unexpectedly stalled last night (illustration above) resulting in a handful of heavy thunderstorms that became stationary over the same areas resulting in 3 inches of rain or more in spots, so while more than half the area stayed dry or just had a few drops where it really rained it poured. The stationary wedge front allowed for stronger than expected moisture convergence as air streams collided.

RADAR ESTIMATED RAINFALL:

DOPPLER RADAR IMAGE TUESDAY 9:40PM: 

Today that wedge front pushes into Alabama taking the main rain convergence zone with it:

ESTIMATED RAINFALL TODAY:

Rain amounts today only a tenth to a quarter of an inch on average with isolated totals over half an inch possible. More dry hours than wet more clouds than sun. Temperatures at least 10 degrees below normal today.

Tomorrow a cold front moves through the area sweeping the moist air out and unusually dry air in for Thursday and Friday with fee air conditioning open window weather Thursday and Friday nights (lows in the 50s) as high pressure takes over with low dew points/low humidity:

Then over the weekend that high pressure system moves off East into the Atlantic and the clockwise circulation around the high will return a Southerly wind flow bringing back higher humidity and scattered clouds with much warmer temperatures on the weekend.

By next week scattered pop-up thundershowers return as more normal summer weather resumes:

For more follow me on Twitter @MellishMeterWSB.

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