Tropical Storm Arlene (AL01)

The first named storm of the 2017 Atlantic hurricane season, Tropical Storm Arlene, formed at 18:00 UTC on Thursday April 20, approximately 700 mi (1,130 km) west southwest of the Azores. Arlene is forecast to track westwards through the remote North Atlantic, before being absorbed by a large non-tropical low pressure system later today, Friday April 21. The tropical storm evolved from a subtropical depression after it developed a weak but warm core. Arlene is the first Atlantic tropical storm to form in April since Ana in 2003, and the furthest north a tropical storm has formed between January and April. This is the third consecutive year that a storm has been named before the official start of the hurricane season on June 1. Current Status and Forecast (as of 09:00 UTC on Friday April 21). The National Hurricane Center (NHC) estimates that the center of Arlene is at approximately 40.0°N, 48.0°W, about 1135 mi (1825 km) WNW of The Azores. The storm has maximum sustained wind speeds of 52 mph (83 km/hr), equivalent to a tropical storm on the Saffir-Simpson Hurricane Wind Scale (SSHWS). Arlene has a minimum central pressure of 993 hPa and is trackingwestward at around 31 mph (50 km/hr). Tropical storm force winds from the center: NE 230 mi (370 km); SE 115 mi (185 km); SW 0 mi (0 km); NW 140 mi (220 km).

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