Asked by: Mayalen Ricondo
asked in category: General Last Updated: 17th May, 2020

What is gale force winds in mph?

A gale is a strong wind, typically used as a descriptor in nautical contexts. The U.S. National Weather Service defines a gale as 34–47 knots (63–87 km/h, 17.5–24.2 m/s or 39–54 miles/hour) of sustained surface winds. Forecasters typically issue gale warnings when winds of this strength are expected.

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In this regard, what speed are gale force winds UK?

Modern scale

Beaufort number Description Wind speed
8 Gale, fresh gale 39–46 mph
62–74 km/h
17.2–20.7 m/s
9 Strong/severe gale 41–47 knots

Also, what force is 20 mph winds? JetStream Max: Beaufort Wind Force Scale

Beaufort Wind Force Wind Average Speed Range
3 9 kt 10 mph 16 km/h 7-10 kt 8-12 mph 12-19 km/h
4 13 kt 16 mph 24 km/h 11-16 kt 13-18 mph 20-28 km/h
5 19 kt 22 mph 34 km/h 17-21 kt 19-24 mph 29-38 km/h
6 24 kt 28 mph 44 km/h 22-27 kt 25-31 mph 39-49 km/h

Also asked, are gale force winds dangerous?

Gale Definition The word, gale in the context of wind definition, normally refers to a full-strength gale force wind. This means wind speeds of 63 - 87 km/h (39 - 54 mph). Naturally, winds of this wind speeds can be very dangerous and destructive.

What wind speed stops ferries?

- Conventional ships have a sail ban with winds over 8B / 9B = 39 - 54 mph. In general, a 24 - 27 mph wind = 5B - 6B wind does not create substantial problems.

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