What are the Beaufort scale categories?
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- Light winds at 1-5 kph (1-3 mph).
- Light breeze at 6-11 kph (4-7 mph).
- Gentle breeze at 12-19 kph (8-12 mph).
- Gentle breeze at 20-28 kph (13-18 mph).
- Fresh breeze at 29-38 kph (19-24 mph).
- Strong breeze at 39-49 kph (25-31 mph).
- Moderate gale at 50-61 kph (32-38 mph).
- Fresh gale at 62-74 kph (39-46 mph).
Does the Beaufort scale measure wind speed?
The Beaufort Scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale. They do not reflect the wind speeds that you would feel on the ground – at 2 metres, wind speed may be only 50-70% of these figures.
What are force 5 winds?
Beaufort Wind Scale
| Force | Speed | Description |
|---|---|---|
| 4 | 13-18 | Moderate Breeze |
| 5 | 19-24 | Fresh Breeze |
| 6 | 25-31 | Strong Breeze |
| 7 | 32-38 | Near Gale |
How do you read a Beaufort scale?
How to read the Beaufort scale chart?
- 0 — calm. Wind speed: < 0.5 m/s (< 1 mph).
- 1 — light air. Wind speed: 0.5–1.5 m/s (1–3 mph).
- 2 — light breeze. Wind speed: 1.6–3.3 m/s (4–7 mph).
- 3 — gentle breeze.
- 4 — moderate breeze.
- 5 — fresh breeze.
- 6 — strong breeze.
- 7 — high wind, moderate gale, near gale.
What is force 3 wind?
Wind felt on face, leaves rustle, vanes begin to move. 3. 7-10. Gentle Breeze. Large wavelets, crests begin to break, scattered whitecaps.
What description is it in the Beaufort wind scale if the wind force is 9?
Beaufort scale of wind
| The Beaufort scale of wind (nautical) | ||
|---|---|---|
| Beaufort number | name of wind | wind speed |
| 8 | fresh gale (or gale) | 34–40 |
| 9 | strong gale | 41–47 |
| 10 | whole gale (or storm) | 48–55 |
How Strong is 10 mph wind?
| Beaufort number | Description | Speed |
|---|---|---|
| 8 | Gale | 39 to 46 mph |
| 9 | Strong Gale | 47 to 54 mph |
| 10 | Whole Gale | 55 to 63 mph |
| 11 | Storm Force | 64 to 75 mph |
What Is a Force 7 wind speed?
7. 28-33. Near Gale. Sea heaps up, waves 13-19 ft, white foam streaks off breakers. Whole trees moving, resistance felt walking against wind.
How strong is 10 knots wind?
| Beaufort Wind Force | Wind | |
|---|---|---|
| Speed | ||
| 8 | 37 kts 43 mph 68 km/h | 34-40 kts 39-46 mph 62-74 km/h |
| 9 | 44 kts 51 mph 82 km/h | 41-47 kts 47-54 mph 75-88 km/h |
| 10 | 52 kts 59 mph 96 km/h | 48-55 kts 55-63 mph 89-102 km/h |
What is 40 mph in Beaufort scale?
JetStream Max: Beaufort Wind Force Scale
| Beaufort Wind Force | Wind Average | Speed Range |
|---|---|---|
| 6 | 24 kt 28 mph 44 km/h | 22-27 kt 25-31 mph 39-49 km/h |
| 7 | 30 kt 35 mph 56 km/h | 28-33 kt 32-38 mph 50-61 km/h |
| 8 | 37 kt 43 mph 68 km/h | 34-40 kt 39-46 mph 62-74 km/h |
| 9 | 44 kt 51 mph 82 km/h | 41-47 kt 47-54 mph 75-88 km/h |
What is the Beaufort scale?
Beaufort scale. The Beaufort scale /ˈboʊfərt/ is an empirical measure that relates wind speed to observed conditions at sea or on land.
How does the Beaufort scale work?
How does the Beaufort Scale work? The current version of the scale was defined in 1970 with 13 wind speeds . There are 13 classifications in total, ranging from wind force 0 to 12. Based on the wind speed the wind force can be classified in the Beaufort Scale. Thereby the speeds in the Beaufort Scale are divided into ranges.
What is the speed of wind in mph?
The average wind speed on Earth is 11.1 miles per hour. The velocity in an average tornado is about 112 mph. The fastest wind speed ever officially recorded in North America was 231 mph, sustained over a one-minute average,…
What is gale wind speed?
A gale force wind can be defined as a sustained strong wind, registering between 7-10 on the Beaufort Scale , which indicates wind speeds of 50 – 102 km/h (32 – 63 mph). In short, these strong winds are caused by a rapid drop in air-pressure from high to low.