Rina (2017)

A low pressure area that formed from a tropical wave and mid‑level features in the central Atlantic developed into a tropical depression on 5 November 2017 about 700 nautical miles east‑southeast of Bermuda. The system became Tropical Storm Rina around 0000 UTC 7 November and moved generally northward on the western edge of a subtropical ridge. Rina strengthened to its peak on 8 November and then weakened rapidly as it accelerated northward into cooler waters and stronger upper‑level winds, becoming post‑tropical by 0600 UTC 9 November and merging with a larger extratropical low about 12 hours later.

Rina did not make landfall. Its entire life was over the central and northern Atlantic Ocean; it remained well east of Bermuda and south of Newfoundland throughout its tropical phase. No coastal watches or warnings were issued.

The storm’s peak intensity was estimated at 50 knots (about 58 mph) at 0600 UTC 8 November, with a minimum central pressure near 991 millibars (the lowest pressure recorded in the best track was 991 mb at 0000 UTC 9 November). At peak strength Rina was a moderate tropical storm, not a hurricane.

There were no reports of storm surge or rainfall impacts on land associated with Rina. No observations of tropical‑storm‑force winds were reported at land stations, and the cyclone remained over open ocean during its life.

No deaths, injuries, or damage were reported. Forecasts had difficulty predicting Rina’s genesis (it was added to outlooks shortly before formation), and official track forecasts had larger than average errors for this system, while intensity forecasts performed relatively well in predicting that Rina would not reach hurricane strength.