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Hurricane Leslie Intermediate Advisory Number 66A
NWS National Hurricane Center Miami FL AL132018
800 PM AST Fri Oct 12 2018
...LESLIE PASSING BETWEEN THE AZORES AND MADEIRA ISLAND...
...DANGEROUS WINDS, SURF, AND HEAVY RAINFALL EXPECTED TO AFFECT
PORTIONS OF PORTUGAL AND SPAIN SATURDAY NIGHT AND SUNDAY...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
ABOUT 795 MI...1280 KM WSW OF LISBON PORTUGAL
ABOUT 320 MI...515 KM WNW OF MADEIRA ISLAND
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...ENE OR 70 DEGREES AT 35 MPH...56 KM/H
MINIMUM CENTRAL PRESSURE...972 MB...28.70 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Madeira Island
Interests in the Portugal and Spain should monitor the progress of
Leslie. Additional information on this system can be found in
products from the Portuguese Institute for Sea and Atmosphere at
www.ipma.pt. Interests in Spain should refer to products from the
State Meteorological Agency at www.aemet.es.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within the
next 6 to 12 hours.
For storm information specific to your area, please monitor products
issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 800 PM AST (0000 UTC), the center of Hurricane Leslie was located
near latitude 34.4 North, longitude 22.4 West. Leslie is moving
toward the east-northeast near 35 mph (56 km/h). A fast motion
toward the east-northeast is expected to continue through Saturday,
followed by a slower east-northeastward motion Saturday night and
Sunday. On the forecast track, the center of Leslie will pass north
of Madeira Island tonight and early Saturday, approach the
southwestern portion of the Iberian Peninsula on Saturday, and
move inland over portions of the Iberian Peninsula late Saturday and
Maximum sustained winds are near 85 mph (140 km/h) with higher
gusts. Leslie is expected to transition into a hurricane-force
post-tropical cyclone on Saturday. Weakening is forecast after
Leslie moves inland over the Iberian Peninsula, and the post-
tropical cyclone is expected to dissipate by Monday.
Hurricane-force winds extend outward up to 70 miles (110 km), mainly
to the south of the center. Tropical-storm-force winds extend
outward up to 230 miles (370 km) from the center.
The estimated minimum central pressure is 972 mb (28.70 inches).
HAZARDS AFFECTING LAND
WIND: Tropical storm conditions are expected on Madeira Island
Post-tropical Leslie will bring winds to near hurricane-force to
portions of Portugal late Saturday, and tropical-storm-force winds
to portions of western Spain late Saturday and Saturday night.
Please see products from your local meteorological service for more
information on this hazard.
RAINFALL: Leslie is expected to produce total rain amounts of 1 to
3 inches (25 to 75 mm) with localized amounts up to 4 inches (100
mm) across Portugal and portions of Spain through Sunday night.
This rainfall may lead to some instances of flash flooding.
SURF: Swells generated by Leslie will likely affect portions of
the Azores, Madeira Island, and the Canary Islands through Saturday
and will reach the Atlantic coasts of Spain, Portugal, and Morocco
over the weekend. These swells are likely to cause life-threatening
surf and rip current conditions. Please consult products from your
local weather office.
Next complete advisory at 1100 PM AST.