Current Snapshot

The Pacific Disaster Center’s (PDC Global) Friday, August 9, 2024, Tropical Cyclone Activity Report for the Atlantic Ocean, the Caribbean Sea, and the Gulf of Mexico

CURRENT TROPICAL CYCLONES:

Post-Tropical Cyclone 04L (Debby)…is located about 140 miles east-northeast of Montreal, Quebec…according to the NHC Advisory number 31

Tropical Cyclone 04L (Debby)

AREAS OF HEAVY RAINFALL CONTINUE ACROSS PORTIONS OF NEW ENGLAND AND SOUTHERN QUEBEC…IMPROVING CONDITIONS EXPECTED SATURDAY MORNING AS DEBBY MOVES RAPIDLY TO THE NORTHEAST

The post-tropical cyclone is moving toward the northeast near 39 mph (63 km/h) and this motion is expected to continue.

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Little change in strength is forecast during the next 48 hours.

HAZARDS AFFECTING LAND

RAINFALL: Debby is expected to produce an additional 1 to 3 inches of rainfall with locally higher amounts, across portions of the coastal Carolina’s today, with locally considerable flooding expected.

From portions of northern Virginia through Upstate New York, 2 to 4 inches of rainfall, with local amounts to 6 inches, are expected through late tonight. This will likely result in areas of considerable flash and urban flooding, as well as river flooding.

For portions of Northern New England, 1 to 3 inches of rain with locally higher amounts are expected through Friday night. This will result in isolated to scattered instances of flash flooding.

TORNADOES: The threat for tornadoes will shift into eastern Maryland, New Jersey, eastern Pennsylvania and eastern New York today.

WIND: Wind gusts of 30-50 MPH will be possible into tonight across portions of eastern Maryland, Delaware, southeast Pennsylvania, New Jersey, far southeast New York into Long Island, coastal Connecticut, and far northeast New York into Vermont. Given saturated ground conditions these winds may bring down trees and result in isolated to scattered power outages.

SURF: Large swells will continue to affect the Southeast, Mid-Atlantic and Southern New England coast. These conditions are likely to cause life-threatening surf and rip current conditions.

>>> Near the Lesser and Greater Antilles:

Shower and thunderstorm activity has increased some in association with a tropical wave located roughly halfway between the Cabo Verde Islands and the Lesser Antilles. Gradual development of this system is possible during the next couple of days while it moves westward to west-northwestward across the central tropical Atlantic. Afterwards, conditions are expected to become more conducive for development and a tropical depression is likely to form by the early to mid part of next week while the system approaches and then moves near or over the Lesser Antilles. The system is forecast to continue moving generally west-northwestward and could approach portions of the Greater Antilles by the middle to latter part of next week.

* Formation chance through 48 hours…low…20 percent
* Formation chance through 7 days…high…80 percent