Storm Chances Return To MD, Flood Watch In Effect: See Latest Timing, Impacts

Storms will return to Maryland on Wednesday and could bring heavy rainfall and flooding to the Baltimore-D.C. region, according to the latest forecasts.

Conditions on Wednesday will be hot and muggy with temperatures reaching the upper 80s to low 90s and dew points in the mid-70s. The moisture in the air is expected to fuel storms later in the day that could produce a lot of rain in a short amount of time.

Because of this, a flood watch is in effect until 9 p.m. for Anne Arundel, Cecil, Howard, Montgomery, Baltimore, Harford and Prince George's counties, according to the National Weather Service.

Forecasters said localized rainfall amounts of around 1 to 2 inches within an hour are likely. Multiple rounds of storms are possible, with total rainfall amounts of around 2 to 4 inches. This may cause creeks and small streams to rise out of their banks, with flash flooding possible.

According to The Washington Post's Capital Weather Gang, the most probable time window for storms is between 3 and 10 p.m. In the Beltway area, storms seem most likely between 5 and 9 p.m.

The National Weather Service said the region is in a Level 1 out of 5 risk zone for severe weather, meaning storms could produce damaging wind gusts in addition to heavy rain and lightning.

Thursday will remain hot and humid, with highs reaching the upper 80s to low 90s and a chance of isolated to scattered showers and storms in the afternoon.

Temperatures will linger in the upper 80s to low 90s through the weekend. Abundant sunshine is expected, but a few isolated showers and storms are possible each day.

Here's a look at the detailed NWS forecast for the Baltimore area:

Wednesday: Scattered showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 89. South wind 5 to 7 mph. Chance of precipitation is 30%.

Wednesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 40%.

Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%.

Friday: Sunny, with a high near 89. North wind around 6 mph.

Friday Night: Partly cloudy, with a low around 71.

Saturday: Mostly sunny, with a high near 87.

Saturday Night: Mostly clear, with a low around 70.

Sunday: Sunny, with a high near 92.

Sunday Night: Partly cloudy, with a low around 72.