Cobb braces for Irma with heavy rain, high winds; school closed Mon. & Tues.

    Cobb braces for IrmaNational Weather Service projection as of 11 a.m. Sunday.

It may not seem like it today, but East Cobb, metro Atlanta and the state of Georgia are about to get major tropical storm weather.

On Sunday it’s been beautiful, with sunny skies and temperatures rising to the low 70s, and humidity levels around 40 percent. But those conditions will change dramatically on Monday.

Late Saturday night, the National Weather Service in Peachtree City issued a tropical storm warning for the metro Atlanta area that is expected to last until early Tuesday.

The NWS is forecasting heavy rains and high winds as what’s left of Hurricane Irma pushes into Georgia, after the powerful Category 4 storm made landfall in south Florida Sunday morning.

Shortly before 1 p.m. on Sunday, Georgia Gov. Nathan Deal declared a state of emergency for the entire state, and said state government offices will be closed on Monday and Tuesday. Many local governments and school districts quickly followed suit.

Tropical storm conditions are expected all day Monday in Cobb and metro Atlanta, with between 1-2 inches of rain possible (and likely more), as well as winds possibly gusting to 55 mph and even higher.NWS Atlanta Irma rainfall

The possibility of flash flooding is also in the forecast, and already some metro Atlanta school districts and colleges, including Kennesaw State University, have cancelled all classes and activities. A flash flood watch is in effect for Cobb until 8 a.m. Tuesday.

UPDATED: Cobb County School District officials announced at 1:40 p.m. Sunday that there will be no school on Monday or Tuesday; all other activities also will be cancelled on those days and the school system’s main offices will be closed as well.

UPDATED, 7 PM SUNDAY: Cobb County government offices will be closed on Monday. Libraries also will be closed, and the Cobb Board of Commissioners work session scheduled for Monday has been cancelled.

In a Facebook message to Cobb school parents Saturday night, deputy superintendent John Adams said the district was considering possible power outage concerns as well as rain and wind conditions affecting travel.

Atlanta Irma wind speed
National Weather Service rainfall and windspeed estimate maps as of 1 p.m. Sunday.

“We are also interested to see if the Governor expands the State of Emergency to include metro Atlanta. Rest assured that we will always err on the side of student safety and will seek to make a decision about school on Monday as soon as reasonably possible.”

On Friday, the CCSD issued a message urging parents to visit its website homepage for updates, and to refer to the school system’s inclement weather page for details.

Already some brisk winds are whipping up in the East Cobb area. By early Sunday afternoon, the winds were reported at around 15 mph, and they’re expected to get even stronger as tropical storm-like weather approaches north Georgia.

The rain in metro Atlanta is expected to arrive overnight, with thunderstorms most likely after 7 a.m. Temperatures are expected to be only in the mid 60s, but the chance of precipitation is 100 percent.

On Monday night, tropical storm conditions are expected to continue, with more showers and the possibility of thunderstorms. The low temperature is expected to drop to 60.

On early Tuesday morning, as the tropical storm warning is projected to end, more showers are in the forecast, with highs in the high 60s. Winds between 15-20 mph could gust to 30 mph, and the chance of rain is 80 percent.

Over the weekend, Cobb County government urged residents to take safety measures and provided a page with emergency links and other related information.