The time frame in which storm activity is possible is from the early afternoon on Wednesday, July 14 until close to midnight.
There will be scattered showers and drizzle at times in the morning on Wednesday, which will be a warmer and more humid day, with the high temperature in the mid 80s.
There will be some sunshine in the afternoon before a line of showers and storms is expected to sweep through the region from the west to the east.
Some of the storms could have damaging wind gusts, the National Weather Service said in a statement on Wednesday morning.
Torrential downpours, frequent lightning are possible with any storm activity, along with a chance for hail. Isolated tornadoes cannot be ruled out.
"Due to the extremely humid conditions and weak steering winds, any shower or thunderstorm has the potential to produce localized flooding downpours through at least Wednesday," according to AccuWeather Senior Storm Warning Meteorologist Brian Wimer.
Thursday, July 15 is expected to be the driest day of the week, with mostly sunny skies, high temperatures in the upper 80s, and calm winds.
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