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Apr
20
2017

Tropical Cyclone Activity Report – Atlantic Ocean / Caribbean Sea / Gulf of Mexico

Tropical Cyclone 01L (Arlene) remains active…located about 815 miles west of the Azores

PDC Disaster Alert, displaying PDC Active Hazards, Tropical Cyclone segments, positions, and 1-day precipitation accumulation layers for Tropical Cyclone 01L (Arlene)

Tropical Storm 01 (Arlene) remains active in the north Atlantic…remaining away from land areas

Here’s the latest satellite image of this out of season system…along with the looping version

Here’s what the various computer models are showing for this tropical cyclone

The near real time wind profile of this tropical storm

Tropical Storm 01L is the first April system since 2003. Since 1851…only seven tropical systems have formed before May 9th.

This makes the third straight year that a system has formed in the Atlantic…before the official June 1st start of the hurricane season.

TC Ana back in 2003 was the last April named storm in the Atlantic Basin. Ana began as a sub-tropical storm on April 20, 2003, and soon gained full tropical characteristics. That made Ana the only tropical storm on record to form in the Atlantic Basin in April.

The Atlantic hurricane season does not officially begin until June 1st and extends through November 30th.

According to the National Hurricane Center (NHC), satellite imagery indicates that the convection, although not very deep, has become more symmetric around the center, suggesting that the subtropical cyclone has transitioned into a tropical storm.

This transition is a common process, and does not change the previous intensity or track forecasts, that call for the storm to become a remnant by Friday.

It’s estimated that the storm is producing winds of 40 knots within some convective bands.

Since the circulation is already becoming elongated, a weakening trend is likely to begin soon. The storm is moving toward the west-northwest at 22 knots, and this general motion with a gradual increase in forward speed is expected to continue until dissipation.

 

Atlantic Ocean

Tropical Cyclone 01L (Arlene)

NHC textual forecast
NHC graphical track map
NOAA satellite Image

NOAA satellite image of the Atlantic

Caribbean Sea

NOAA satellite image of the Caribbean Sea

Gulf of Mexico

Latest satellite image of the Gulf of Mexico

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