FROM THE NATIONAL WEATHER SERVICE:
The latest briefing update concerning Tropical Storm Debby for the Florida Keys of Monroe County is attached.
The briefing is also posted at https://www.weather.gov/media/key/DSS/dssbrief_land.pdf
Tropical Storm Warning remains in effect for the Lower Florida Keys, from west of the 7 Mile Bridge to Key West, and also for Dry Tortugas.
Tropical Storm Watch remains in effect for the Middle Keys, including Marathon.
A Coastal Flood Advisory (for saltwater flooding) remains in effect for all of the Florida Keys through this morning
The Flood Watch (for rainfall induced flooding) remains in effect this morning for the Lower Keys, but has been cancelled for the Middle and Upper Keys.
Expected impacts include:
Thundery squalls with localized wind gusts of 45 to 55 mph, mainly in the Lower Keys, and up to 55 knots over open waters around the Lower Keys and westward to the Dry Tortugas this morning. Winds will gradually decrease this afternoon and evening.
A marginal risk of severe weather this morning , with the primary threats being isolated damaging wind gusts and possibly a tornado or two . The risk of severe weather should diminish this afternoon.
Above normal tides with water levels 1 to 2 feet above mean higher high water, similar to October King Tides. Oceanside over wash atop seawalls, docks, and low elevation yards and streets due to wave action is also expected through this morning.
Additional rainfall totals of 1 to 2 inches with isolated higher amounts will be possible across the Lower Keys this morning.
Tropical Storm Debby will continue to move northward across the eastern Gulf of Mexico and away from the Keys today and tonight. On the forecast track, Debby will make landfall as a hurricane along the Florida Big Bend on Monday.
The next briefing will be distributed by noon today.