Bill Becomes Extratropical As He Races Towards Newfoundland

709 

WTNT32 KNHC 160233

TCPAT2

BULLETIN

Post-Tropical Cyclone Bill Advisory Number   7

NWS National Hurricane Center Miami FL       AL022021

1100 PM AST Tue Jun 15 2021

...BILL BECOMES EXTRATROPICAL...

...THIS IS THE LAST NHC ADVISORY...

SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION

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

LOCATION...43.5N 57.0W

ABOUT 335 MI...540 KM E OF HALIFAX NOVA SCOTIA

ABOUT 290 MI...470 KM SW OF CAPE RACE NEWFOUNDLAND

MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H

PRESENT MOVEMENT...NE OR 35 DEGREES AT 29 MPH...46 KM/H

MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES

WATCHES AND WARNINGS

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

There are no coastal watches or warnings in effect.

DISCUSSION AND OUTLOOK

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

At 1100 PM AST (0300 UTC), the center of Post-Tropical Cyclone Bill

was located near latitude 43.5 North, longitude 57.0 West. The

post-tropical cyclone is moving toward the northeast near 29 mph (46

km/h) and this motion is expected to continue through Wednesday.

Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.

Weakening is expected, and the post-tropical low is expected to 

dissipate on Wednesday.

Tropical-storm-force winds extend outward up to 105 miles (165 km)

mainly to the southeast of the center.

The estimated minimum central pressure is 1002 mb (29.59 inches).

HAZARDS AFFECTING LAND

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

None.

NEXT ADVISORY

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

This is the last public advisory issued by the National Hurricane

Center on this system.  Additional information on this system can be 

found in High Seas Forecasts issued by the National Weather 

Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and 

online at ocean.weather.gov/shtml/NFDHSFAT1.php

$$

Forecaster Beven

000

WTNT42 KNHC 160233

TCDAT2

Post-Tropical Cyclone Bill Discussion Number   7

NWS National Hurricane Center Miami FL       AL022021

1100 PM AST Tue Jun 15 2021

Satellite imagery indicates that Bill has become extratropical over 

the north Atlantic. A partial scatterometer overpass showed 35-40 

kt winds to the east-southeast of the center, so the initial 

intensity is lowered to a possibly generous 45 kt.  The 

extratropical low should continue to weaken and move quickly toward 

the northeast until it weakens to a trough between 12-24 h.

This is the last advisory on Bill by the National Hurricane Center. 

Additional information on this system can be found in High Seas

Forecasts issued by the National Weather Service, under AWIPS

header NFDHSFAT1, WMO header FZNT01 KWBC, and online at 

ocean.weather.gov/shtml/NFDHSFAT1.php

FORECAST POSITIONS AND MAX WINDS

INIT  16/0300Z 43.5N  57.0W   45 KT  50 MPH...POST-TROP/EXTRATROP

 12H  16/1200Z 46.5N  53.9W   40 KT  45 MPH...POST-TROP/EXTRATROP

 24H  17/0000Z...DISSIPATED

$$

Forecaster Beven

2:53 PM ADT Tuesday 15 June 2021

Tropical cyclone information statement for:

Newfoundland and Labrador:

Burin Peninsula - Southern Avalon

Connaigre

St. John's - Bonavista Peninsula

Terra Nova

Nova Scotia:

Guysborough County

Halifax County - east of Porters Lake

Halifax Metro and Halifax County West

Lunenburg County

Queens County

Richmond County

Shelburne County

Sydney Metro and Cape Breton County

Yarmouth County

For Tropical Storm Bill.

This information statement update for 3:00 PM Tuesday. This is the last planned statement for Tropical Storm Bill.

Tropical Storm Bill formed off the coast of North Carolina Monday morning. The Canadian Hurricane Centre continues to monitor this system, but it is not expected to have any direct impact on Canadian land areas. It is currently about 500 kilometres south of Cape Breton Island.

Bill became better organized earlier today, as indicated by satellite and radar measurements, but is starting to deteriorate. It currently has storm force winds of 90 kilometres per hour. Forecast guidance is indicating possible slow weakening during the next twelve hours as it travels over warm waters before reaching the southeastern Scotian Slope or the southwestern Grand Banks tonight. The system is then expected to continue weakening over offshore Canadian waters before becoming absorbed by a larger non-tropical low pressure system originating from the west. It is expected to become fully absorbed south of Newfoundland during the day on Wednesday, before moving over southeastern Newfoundland.

Please continue to monitor alerts issued by the Canadian Hurricane Centre and forecasts issued by Environment Canada.