ZCZC MIATCPAT5 ALL
TTAA00 KNHC DDHHMM
Post-Tropical Cyclone Teddy Intermediate Advisory Number 42A
NWS National Hurricane Center Miami FL AL202020
800 PM AST Tue Sep 22 2020
...POST-TROPICAL CYCLONE TEDDY HEADING TOWARD THE NOVA SCOTIA
...DESTRUCTIVE WAVES, HEAVY RAIN AND STRONG WINDS ARE EXPECTED FOR
PORTIONS OF NOVA SCOTIA TONIGHT THROUGH WEDNESDAY...
SUMMARY OF 800 PM AST...0000 UTC...INFORMATION
ABOUT 190 MI...305 KM S OF HALIFAX NOVA SCOTIA
ABOUT 465 MI...750 KM SSW OF PORT AUX BASQUES NEWFOUNDLAND
MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H
PRESENT MOVEMENT...N OR 360 DEGREES AT 18 MPH...29 KM/H
MINIMUM CENTRAL PRESSURE...955 MB...28.20 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* South coast of Nova Scotia from Digby to Meat Cove
* Port aux Basques to Francois Newfoundland
A Tropical Storm Watch is in effect for...
* Meat Cove to Tidnish Nova Scotia
* North of Digby to Fort Lawrence Nova Scotia
* Magdalen Islands Quebec
* Prince Edward Island
A Tropical Storm Warning means that tropical storm conditions are
expected within the warning area.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area.
Interests elsewhere in Atlantic Canada should closely monitor the
progress of Teddy.
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 Post-Tropical Cyclone Teddy
was located near latitude 41.9 North, longitude 64.2 West. Teddy is
moving toward the north near 18 mph (29 km/h), and a turn toward the
north-northeast is expected by early Wednesday. On the forecast
track, the center will move over eastern Nova Scotia on Wednesday,
and then near or over Newfoundland by Wednesday night, and be east
of Labrador on Thursday.
Air Force Reserve hurricane hunters indicate that the maximum
sustained winds have decreased to near 85 mph (140 km/h) with
higher gusts. Although further weakening is likely tonight and
Wednesday, Teddy should be a strong post-tropical cyclone when it
moves near and over Nova Scotia. A weather station at Brier Island
recently reported a sustained wind of 40 mph (65 km/h), and a gust
of 51 mph (81 km/h).
Teddy is an extremely large post-tropical cyclone. Hurricane-force
winds extend outward up to 125 miles (205 km) from the center and
tropical-storm-force winds extend outward up to 540 miles (870 km).
Buoy 44150, located about 60 n mi north of the center, recently
reported a significant wave height of 36 ft (11 m).
The estimated minimum central pressure is 955 mb (28.20 inches).
HAZARDS AFFECTING LAND
Key messages for Teddy can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC
and on the web at https://www.hurricanes.gov/text/MIATCDAT5.shtml.
STORM SURGE: A dangerous storm surge is expected to produce
significant coastal flooding near and to the east of where the
center makes landfall in Nova Scotia. Near the coast, the surge
will be accompanied by very large and destructive waves.
SURF: Large swells generated by Teddy are affecting Bermuda, the
Lesser Antilles, the Greater Antilles, the Bahamas, the east coast
of the United States, and Atlantic Canada. These swells are likely
to cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
WIND: Tropical storm conditions are occurring in the Nova Scotia
warning area now. Tropical storm conditions could begin in the
watch areas tonight or early Wednesday. Tropical storm conditions
are expected to begin in the Newfoundland warning area on Wednesday
RAINFALL: Through Thursday, Teddy is expected to produce rainfall
accumulations of 2 to 4 inches (50 to 100 mm) with isolated totals
of 6 inches (150 mm) across sections of Atlantic Canada.
Next complete advisory at 1100 PM AST.