1. Larry is forecast to move near or over portions of southeastern Newfoundland Friday night or early Saturday morning as it undergoes transition to a hurricane-force post-tropical cyclone. Hurricane conditions and dangerous storm surge are expected in portions of southeastern Newfoundland where a Hurricane Warning in effect.

2. Large swells generated by Larry will continue to affect the Leeward Islands, portions of the Greater Antilles, the Bahamas, Bermuda, and the east coast of the United States and Atlantic Canada through the end of the week. These swells will cause life-threatening surf and rip current conditions, and beachgoers and other interests along these coasts are urged to follow the guidance of lifeguards and local officials.

CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for...
- Southeastern Newfoundland from Arnold's Cove to Jones Harbour

A Tropical Storm Warning is in effect for...
- Southeastern Newfoundland from Lamaline to west of Arnold's Cove
- Southeastern Newfoundland from north of Jones Harbor to Bonavista

A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case within the next 24 hours. Preparations to protect life and property should be rushed to completion.

A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area.

Interests elsewhere in southeastern Newfoundland should monitor the progress of this system.

For storm information specific to your area, please monitor products issued by your national meteorological service.

Key messages for Larry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC and on the web at hurricanes.gov/graphics_at2.shtml?key_messages

WIND: Hurricane conditions are expected within the hurricane warning area in southeastern Newfoundland tonight, with tropical storm conditions expected by late today. Tropical storm conditions are expected in the tropical storm warning area in southeastern Newfoundland by late today.

STORM SURGE: A dangerous storm surge is expected to produce coastal flooding within the warning areas in southeastern Newfoundland.

SURF: Swells generated by Larry will continue to affect portions of the Greater Antilles and the Bahamas today. Significant swells from Larry will continue affecting Bermuda, the east coast of the United States, and Atlantic Canada through Saturday. These swells are likely to cause lifethreatening surf and rip current conditions. Please consult products from your local weather office.

RAINFALL: Heavy rains from Larry will move quickly across eastern Newfoundland tonight, producing 1 to 2 inches of rain.

At 200 AM AST (0600 UTC), the center of Hurricane Larry was located near latitude 36.5 North, longitude 62.2 West. Larry is moving toward the north near 25 mph (41 km/h). A further increase in forward speed is expected this morning with a turn to the northeast forecast later today. On the forecast track, the center of Larry will continue to move away from Bermuda this morning, and move near or over southeastern Newfoundland tonight or early Saturday morning.

Maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Gradual weakening is forecast to begin later today, but Larry is expected to remain a hurricane until it passes Newfoundland. Larry should become an extratropical cyclone on Saturday, and is now forecast to be absorbed by a larger extratropical low near Greenland by the end of the weekend.

Larry remains a large hurricane. Hurricaneforce winds extend outward up to 90 miles (150 km) from the center and tropicalstormforce winds extend outward up to 230 miles (370 km).

The estimated minimum central pressure is 966 mb (28.53 inches).

There is not much new to report in the satellite structure with Larry this evening. The hurricane consists of a small core region of cold convective cloud tops near and just north of the center with a much larger concentric band of more moderate convective activity encircling the smaller core. Radar from Bermuda also shows this structure well even as the hurricane pulls away from the island. The most recent subjective Dvorak satellite intensity estimates from SAB and TAFB were unchanged from this afternoon, and the initial intensity will remain at 80 kt for this advisory.

Larry is now moving to the north and beginning to accelerate at 360/20 kt. The track guidance remains in good agreement that Larry should soon turn to the northeast and continue accelerating quickly ahead of a large mid-latitude trough. On the current track, Larry should pass near or over southeastern Newfoundland tomorrow night or Saturday morning, becoming post-tropical shortly after it passes by. The post-tropical cyclone Larry should continue to move rapidly to the northeast until it is absorbed by the aforementioned mid-latitude trough after 48 hours. The official track forecast again lies close to the various consensus model predictions, and is just a touch faster than the previous forecast.

Larry has another 12 hours or so over warm Gulf Stream waters, and most of the guidance is in agreement that the hurricane should maintain its intensity in the short-term. However, more gradual weakening should begin thereafter once Larry moves over much cooler waters. Unfortunately, there is not much time for Larry to weaken before the hurricane impacts Newfoundland, and it also is possible the rapidly approaching mid-latitude trough will provide some baroclinic forcing that could expand the wind field of the hurricane further. The NHC intensity forecast remain close to the latest HCCA guidance which is quite similar to the previous forecast. After 24 hours, the latest forecast GFS and ECMWF simulated IR brightness temperature suggest that Larry's convection should quickly shear off after passing by Newfoundland, with the hurricane becoming a powerful post-tropical cyclone by 36 hours. Both of these models now also suggest the post-tropical cyclone will quickly be stretched and then absorbed as its captured by an even larger extratropical cyclone produced by the upstream trough after 48 hours.