Arthur Strengthens into a Hurricane

By: KBTX Weather Team Email
By: KBTX Weather Team Email

The east coast is now monitoring tropical activity off the east coast as they now deal with the Atlantic Hurricane season's first named storm, Hurricane Arthur.

Arthur was upgraded to a hurricane on Thursday morning due the improvement in the storm's organization on satellite and imagery.

5am Thursday Update

Current stats:

Maximum Winds: 75 mph
Minimum Pressure: 985 MB
Position: 31.3N 79.1W
Movement: N at 9 mph

Arthur reached hurricane status as a Category 1 Hurricane early Thursday morning. Maximum winds have reached speeds up to 75 mph and central pressure is falling to 985mb. Hurricane and tropical storm warnings have been issued for much of the North Carolina coast, as well as a mandatory evacuation for visitors to the Outer Banks' Hatteras Island.

As Hurricane Arthur makes it's way up the northeastern coast, it is passing the Carolinas. Even though Arthur is not expected to make landfall, the East Coast will need to monitor storm surge effects with plenty of rainfall that might dampen travel plans and 4th of July festivities.

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10pm Wednesday Update

Current stats:

Maximum Winds: 70 mph
Minimum Pressure: 988 MB
Position: 30.6N 79.1W
Movement: N at 8 mph

Reports from the National Hurricane Center and NOAA Hurricane Hunters -- Arthur is very near hurricane strength. Central pressure has falling to 988mb and there were a few estimates of hurricane force winds from the hunter plane earlier this evening.

It will be a close shave tomorrow night into Friday morning for the North Carolina coast as Arthur moves through the Outer Banks.

The storm is expected to reach Category 1 strength Thursday -- possibly overnight before the next update from the National Hurricane Center.
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7pm Wednesday Update

Current stats:

Maximum Winds: 70 mph
Minimum Pressure: 990 MB
Position: 30.2N 79.2W
Movement: N at 8 mph

Tropical Storm Arthur is up to winds of 70mph. Sustained winds of 74mph are needed to upgrade a Tropical Storm to a Hurricane -- which is expected to happen by early Thursday.

Those winds extend 80 miles outward from the center of circulation.

Hurricane Warnings and Watches are in place along portioned of the East Coast in the Carolinas.

Hurricane hunters investigating this storm have found that the system is gradually strengthening and the wind field is expanding. An eye feature was also noted on satellite imagery.

This storm is coming into an area of warm water and weaker upper level winds. That is why the National Hurricane Center is anticipating Arthur to be upgraded to a Category 1 Hurricane by early Thursday (at the latest).

At this time, the core of this storm is anticipated to pass close to the coast of North Carolina by Friday.
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Wednesday 5pm Update

Current stats:

Maximum Winds: 70 mph
Minimum Pressure: 992 MB
Position: 29.7N 79.1W
Movement: N at 7 mph

Tropical Storm Arthur is expected to make a turn toward the Northeast tonight allowing for the system to see a slight increase in forward speed. The storm continues to gain strength thanks to the warm coastal waters. The latest storm data has reports of gust in excess of 70mph.

Wednesday 1pm Update

Current stats:

Maximum Winds: 60 mph
Minimum Pressure: 997 MB
Position: 29.4N 79.1W
Movement: N at 7 mph

Tropical Storm Arthur continues to show signs of strengthening a bit, heading into the afternoon. Judging by radar trends, there seems to be an attempt to form that classic eye wall structure -- although, dry air continues to hinder the southwestern side of the storm. This system is expected to come into an area of better moisture as it continues up the East Coast -- just east of Georgia.

Tropical storm force winds now extend 80 miles outward from the center of Arthur. Most of the convection with this system is concentrated to the east and north of the center of circulation.


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Wednesday 10am Update

Tropical Storm Arthur has started to gain some strength as the system lingers over warmer waters. The system will gain strength over the next couple of days and is expected to reach hurricane strength by tomorrow.

Current stats:

Maximum Winds: 60 mph
Minimum Pressure: 998 MB
Position: 28.8N 79.0W
Movement: N at 6 mph

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Tuesday 10pm Update

Tropical Storm Arthur has started to move at a crawl again this evening -- after sitting stationary for a few hours.

Current stats:

Maximum Winds: 50 mph
Minimum Pressure: 1003 MB
Position: 27.9N 79.2W
Movement: N at 2 mph

Even though most of Arthur's thunderstorm activity is to the east of the center of circulation, new thunderstorm activity around the that low pressure center looked to be attempting to form a classic "eye" structure.

Tropical storm force winds extended 70miles out from the center of the storm.

The official forecast continues to call for this system to possibly strengthen into a Category 1 Hurricane over the next 24 to 48 hours.
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Tuesday Afternoon Update

Maximum Winds: 50 mph
Minimum Pressure: 1003 MB
Position: 27.8N 79.4W
Movement: NW at 2 mph

At this time the storm is slowly but surely gaining strength. By this time tomorrow the storm is expected to take a turn to the north. With the storm remaining over warmer waters the system is expected to become a Hurricane by Thursday.
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Tuesday Morning Update

Maximum Winds: 40 mph
Minimum Pressure: 1007 MB
Position: 27.6N 79.3W
Movement: NW at 2 mph

The storm has been remaining nearly stationary, but as of late, is drifting to the Northwest.

The current forecast predicts that Arthur will move up the U.S. east coast, leading to a possible category 1 hurricane by the end of the week. However, some projections indicate that conditions are favorable for steady strengthening into a potential hurricane within the next 72 hours.


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