There are no coastal watches or warnings in effect.

None.

At 500 AM AST (0900 UTC), the center of Tropical Storm Bill was located near latitude 38.5 North, longitude 67.2 West. Bill is moving rapidly toward the northeast near 31 mph (50 km/h), and this general motion is expected to continue through Wednesday.

Maximum sustained winds have increased to near 50 mph (85 km/h) with higher gusts. Little change in strength is expected today, followed by gradual weakening tonight and Wednesday morning when Bill will be moving over colder water. The system is forecast to become a post-tropical low by tonight and dissipate on Wednesday.

Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center.

The estimated minimum central pressure is 999 mb (29.50 inches).

Bill has developed an impressive convective shear pattern to be so far north in latitude. AMSU-A temperature data around 0117 UTC indicated that Bill has a marginal mid-level warm core, suggesting that the cyclone might be a hybrid low pressure system. A late-arriving ASCAT scatterometer pass indicated surface winds up to 42 kt in the southeastern about 40 nmi from the center, plus an expansion of the 34-kt wind field in that quadrant as well. Convection has continued to increase since the time of that earlier ASCAT data as indicated by a 0600Z Dvorak satellite data-T estimate of 3.0/45 kt from TAFB. Therefore, the initial intensity has been increased to 45 kt.

Bill's motion is more rapidly toward the northeast now, or 055/27 kt. The latest track forecast is nearly identical to the previous advisory. Bill is embedded within southwesterly flow ahead of an approaching deep-layer trough and associated cold front, and this steering pattern is expected to persist until Bill dissipates as an extratropical low near eastern Newfoundland in 36 h or less. The new NHC track forecast lies down the middle of the very tightly packed guidance model suite.

Despite strong southwesterly deep-layer vertical wind shear in excess of 30 kt, Bill has managed to maintain deep convection while passing over marginal sea-surface temperatures (SST) of 26.5 deg C. However, the cyclone will be moving over SSTs near 20 deg C by 12 h and over sharply colder waters thereafter while the wind shear concurrently increases. As a result, Bill is expected to transition to an extratropical low pressure system and possible gale area at or shortly after the 12-h period, followed by dissipation by 36 h when the cyclone will be near eastern Newfoundland. The new intensity forecast is similar to the previous advisory, and closely follows a blend of the IVCN and HCCA consensus models.