Intermittent rainshowers are expected throughout the Memorial Day weekend, and to start it off Cobb and much of Georgia have been placed under a flash flood watch until 8 a.m. Saturday.
The National Weather Service said this afternoon the greatest chance for flash flooding is in central Georgia, along with portions of north Georgia.
Between an inch and two inches of rain could fall in those areas until Saturday morning. Localized flash flooding of creeks and streams is possible in places where heavy rainfall occurs.
This is from the NWS watch issued at 3 p.m. Friday:
“Additional rounds of very heavy rainfall are likely as a trough of low pressure to the west feeds very high amounts of moisture into the area. Widespread rainfall amounts of one to two inches are likely. Locally higher amounts of 3 inches or more are possible where storms repeatedly move.
“Much of this heavy rain could fall in a short amount of time. With the heavy rain that has already fallen in the last 2 days, it will only take a relatively small amount of rainfall to cause significant flash flooding.
“Creeks and rivers will rise out of their banks closing roads or impacting homes, businesses and farms. Roads may become closed for extended periods of time. High water will not recede until well after the rain has ended.”
The extended hazardous weather outlook for Cobb continues through Memorial Day and Tuesday, with scattered to numerous showers and thunderstorms possible every day. Heavy rainfall could occur stemming from Tropical Storm Alberto, which is projected to hit the northwest Florida Gulf Coast on Monday.
That is the first named storm of the year, although the 2018 hurricane season doesn’t officially begin until next week.
High temperatures in Cobb and metro Atlanta are expected to reach or exceed 80 degrees every day over the holiday weekend, with expected lows in the mid-to-high 60s.
After Friday’s 50 percent chance of rain, the chance of rain on Saturday and Sunday is forecast to be 60 percent, and around 50 percent on Monday.
Rain also is in the forecast for all of next week.
