Published: Mon, May 28, 2018
Research | By Clarence Powell

Alabama, Mississippi activate National Guard ahead of Subtropical Storm Alberto

Alabama, Mississippi activate National Guard ahead of Subtropical Storm Alberto

For Central Florida, the biggest threat will be heavy rainfall.

Our weather today will have periods of rain, some will be heavy at times. Swelling riverbanks, tornadoes and localized flooding are possible. An additional 4 to 8 inches of rain could fall in some spots between Sunday and Tuesday.

"Overflow of water from ditches and streams could lead to flash flooding as well, where the danger increases greatly, due to the power of moving water", a NWS brief released Sunday morning states. We are surrounded by corridors of moisture and tropical downpours, however, so the improved weather is not expected to last.

Thousands of Florida residents evacuated homes on Sunday as Subtropical Storm Alberto picked up strength as it headed north through the Gulf of Mexico, with forecasters saying it could bring life-threatening inundation to Southern coastal states.

The Florida Panhandle has been issued with a mandatory evacuation notice, affecting some 4,200 housing units, while Taylor County, to the east has a voluntary evacuation order in place for its coastal areas.

"Heavy rains and gusty winds continue to spread northward over Florida", tweeted the account. Its expected to turn north Sunday morning, then north-northwest Monday night, moving at 13 miles per hour.

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Forecasters at the National Weather Service in Mobile, Alabama, warned residents along coastal Alabama and MS as well as the Florida Panhandle to brace for heavy rain and high winds. This means that it is transforming from a "regular" weather system into a tropical one which gets its energy from the warm waters of the ocean. A Tropical Storm Warning means tropical storm conditions are expected with winds sustained at 39 miles per hour or greater.

Cuba was being pounded by rain along its western coast, raising the threat of flash floods and mudslides. However, the storm should not be taken as an indicator of how this hurricane season will play out, he said.

The bulk of rainfall is expected to remain offshore through Monday morning as drier air filters in over the area from the southwest. Two-four feet of storm surge is also possible as Alberto nears landfall along the Gulf coast, including the Florida Panhandle.

On Sunday, Florida Governor Rick Scott declared a state of emergency in all 67 of Florida's counties.

A subtropical storm like Alberto has a less defined and cooler center than a tropical storm, and its strongest winds are found farther from its center. It is showing signs of transitioning to something more tropical as deeper convection has developed near the center.

"We're talking eight to 12 inches of rain this weekend, and storm surges on the Gulf Coast".

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