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FLORIDA
STORMS
Tropical Storm Bill
LOCATED
290 MI SE OF HALIFAX NOVA SCOTIA
WINDS
60 MPH
PRESSURE
998 MB
MOVING
NE AT 36 MPH
From the National Hurricane Center at 500 PM AST Tue Jun 15 2021
BILL ALMOST AN EXTRATROPICAL CYCLONE
TAP LINKS BELOW TO FOCUS
Alerts
hazards
summary
DISCUSSION

There are no coastal watches or warnings in effect.

There are no coastal watches or warnings in effect.

None.

None.

At 500 PM AST (2100 UTC), the center of Tropical Storm Bill was located near latitude 41.6 North, longitude 59.6 West. Bill is moving toward the northeast near 36 mph (57 km/h) and this motion is expected to continue until the cyclone dissipates on Wednesday. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Some weakening is expected, and Bill is forecast to become a posttropical low by this evening. Tropicalstormforce winds extend outward up to 90 miles (150 km) from the center. The estimated minimum central pressure is 998 mb (29.47 inches).

At 500 PM AST (2100 UTC), the center of Tropical Storm Bill was located near latitude 41.6 North, longitude 59.6 West. Bill is moving toward the northeast near 36 mph (57 km/h) and this motion is expected to continue until the cyclone dissipates on Wednesday. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Some weakening is expected, and Bill is forecast to become a posttropical low by this evening. Tropicalstormforce winds extend outward up to 90 miles (150 km) from the center. The estimated minimum central pressure is 998 mb (29.47 inches).

Bill is well on its way to becoming an extratropical cyclone. The convective pattern has become quite asymmetric with the center exposed to the southwest of the weakening thunderstorms. The center itself has become stretched, and in fact, surrounding observations suggest that the surface center may no longer be closed. In addition, a warm front appears to be forming on the storm's southeast side. Based on these trends, it seems very likely that Bill won't be around for long as a tropical storm. The initial intensity is held at 50 kt based on the earlier ASCAT data, but that could be a little generous.

The initial motion remains a very fast 055/31 kt. A continued fast east-northeast to northeast motion in the mid-latitude jet stream is expected until the cyclone dissipates within the next 12-24 hours near Atlantic Canada. Some weakening seems likely prior to dissipation due to the cyclone moving over much colder SSTs while remaining in a strong wind shear environment.

Due to the system's fast forward speed, the strong winds will remain confined to the south and east sides of the cyc

Bill is well on its way to becoming an extratropical cyclone. The convective pattern has become quite asymmetric with the center exposed to the southwest of the weakening thunderstorms. The center itself has become stretched, and in fact, surrounding observations suggest that the surface center may no longer be closed. In addition, a warm front appears to be forming on the storm's southeast side. Based on these trends, it seems very likely that Bill won't be around for long as a tropical storm. The initial intensity is held at 50 kt based on the earlier ASCAT data, but that could be a little generous.

The initial motion remains a very fast 055/31 kt. A continued fast east-northeast to northeast motion in the mid-latitude jet stream is expected until the cyclone dissipates within the next 12-24 hours near Atlantic Canada. Some weakening seems likely prior to dissipation due to the cyclone moving over much colder SSTs while remaining in a strong wind shear environment.

Due to the system's fast forward speed, the strong winds will remain confined to the south and east sides of the cyc

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