TROPICS: Lee's Surf, Two New Disturbances

MIAMI -- Hurricane Lee is passing well north of the northern Leeward Islands, on its way to a track paralleling the U.S. Atlantic coast.

As of 11 a.m., the National Hurricane Center says Lee is centered about 270 miles north northeast of the northern Leeward Islands, heading WNW at 8. It's expected to stay well north of the Virgin Islands and Puerto Rico.

The only danger faced by Florida are swells expected as soon as later today, that could bring life-threatening surf and rip currents. Those are most likely along the northeast Florida coast, north of Cape Canaveral.

Meantime, there are two new disturbances off the coast of Africa. One has a 30 percent chance of formation over the next 48 hours. The other has zero chance within two days, but forecasters say conditions could become more favorable later in the week.

Photo: NHC

Hurricane Lee Advisory Number 21

NWS National Hurricane Center Miami FL AL132023

1100 AM AST Sun Sep 10 2023

...LEE PASSING WELL NORTH OF THE NORTHERN LEEWARD ISLANDS...

...HAZARDOUS BEACH CONDITIONS EXPECTED TO SPREAD THROUGH THE WESTERN

ATLANTIC DURING THE WEEK...

SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION

-----------------------------------------------

LOCATION...21.6N 61.0W

ABOUT 270 MI...435 KM NNE OF THE NORTHERN LEEWARD ISLANDS

MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H

PRESENT MOVEMENT...WNW OR 300 DEGREES AT 8 MPH...13 KM/H

MINIMUM CENTRAL PRESSURE...958 MB...28.29 INCHES

WATCHES AND WARNINGS

--------------------

There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK

----------------------

At 1100 AM AST (1500 UTC), the center of Hurricane Lee was located

near latitude 21.6 North, longitude 61.0 West. Lee is moving toward

the west-northwest near 8 mph (13 km/h). A slower west-

northwestward motion is expected during the next few days. On

the forecast track, Lee is expected to pass well north of the

northern Leeward Islands, the Virgin Islands, and Puerto Rico

during the next couple of days.

Data from a NOAA Hurricane Hunter aircraft indicate that the

maximum sustained winds have increased to near 110 mph (175 km/h)

with higher gusts. Some strengthening is forecast during the next

couple of days.

Hurricane-force winds extend outward up to 40 miles (65 km) from the

center and tropical-storm-force winds extend outward up to 160 miles

(260 km).

The latest minimum central pressure reported by NOAA reconnaissance

aircraft is 958 mb (28.29 inches).

HAZARDS AFFECTING LAND

----------------------

Key messages for Lee can be found in the Tropical Cyclone Discussion

under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC and on the

web at hurricanes.gov/text/MIATCDAT3.shtml

SURF: Swells generated by Lee are affecting portions of the Lesser

Antilles, the British and U.S. Virgin Islands, Puerto Rico,

Hispaniola, the Turks and Caicos Islands, the Bahamas, and Bermuda.

These swells are likely to cause life-threatening surf and rip

current conditions. Dangerous surf and rip currents are expected to

begin along much of the U.S. East Coast later today and worsen

through this week. Please consult products from your local weather

office.

NEXT ADVISORY

-------------

Next complete advisory at 500 PM AST.

$$

Forecaster Brown


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