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Post-Tropical Cyclone Teddy Discussion Number 46
NWS National Hurricane Center Miami FL AL202020
500 PM AST Wed Sep 23 2020
Teddy is moving quickly north-northeastward just west of
Newfoundland this afternoon as a decaying extratropical low.
Maximum winds from an earlier scatterometer pass were about 50 kt,
and the winds have probably come down based on pressure data from
Meat Cove as the storm left Nova Scotia, so the initial wind speed
is set to 45 kt. Little change in intensity is expected overnight
as Teddy races near northwestern Newfoundland and southeastern
Labrador overnight. The storm is then forecast to move across the
Labrador Sea on Thursday and become absorbed into a powerful
extratropical low, where hurricane-force winds are forecast
southwest of Greenland. No changes were made to the previous track
or intensity forecasts.
Even after Teddy passes Nova Scotia and Newfoundland, large swells
creating dangerous rip currents will linger over much of the
southwestern Atlantic basin for the next few days.
1. The most significant hazards expected from Teddy now are
dangerous waves and high winds for Newfoundland, and Tropical Storm
Warnings are in effect for parts of southwestern Newfoundland.
2. Very large swells produced by Teddy are expected to affect
portions of Bermuda, the Leeward Islands, the Greater Antilles, the
Bahamas, the east coast of the United States, and Atlantic Canada
during the next couple of days. These swells are expected to cause
life-threatening surf and rip current conditions.
FORECAST POSITIONS AND MAX WINDS
INIT 23/2100Z 48.6N 59.6W 45 KT 50 MPH...POST-TROP/EXTRATROP
12H 24/0600Z 52.0N 56.0W 45 KT 50 MPH...POST-TROP/EXTRATROP