- 0-1 MPH - Calm
- 1-2 MPH - Light Breeze
- 4-7 MPH - Slight Breeze
- 8-12 MPH - Gentle Breeze,
- 13-18 MPH - Moderate Breeze,
- 19-24 MPH - Fresh Breeze,
- 25-31 MPH - Strong Breeze,
- 32-38 MPH - Moderate Gale,
- 39-46 MPH - Fresh Gale,
- 47-54 MPH - Strong Gale,
What damage can gale force winds do?
What damage can gale force winds do? Gale forces winds are classed between 39-46 mph and can cause wind damage such as small debris being blown from trees. Winds ranging from 55-63 mph are classed as storm winds, and these often result in significant structural damage to a building as well as the uprooting of trees.
What is minimum wind speed of a gale?
Wind speed and relative humidity ratios have different criteria; SMALL CRAFT ADVISORY. Sustained winds or frequent gusts of 29-38 mph (25-33kts) AND/OR Seas ≥ 5 feet within 24 hours. GALE WARNING. Sustained winds or frequent gusts of 39-55 mph (34-47kts) within 24hrs from a non-tropical system. STORM WARNING
What is considered a gale force wind?
What is meant by gale force winds? gale, wind that is stronger than a breeze; specifically a wind of 28–55 knots (50–102 km per hour) corresponding to force numbers 7 to 10 on the Beaufort scale. As issued by weather service forecasters, gale warnings occur when forecasted winds range from 34 to 47 knots (63 to 87 km per hour).
What wind speed is dangerous to drive in?
Winds of even 30 to 45 mph can make driving significantly more dangerous. First, they can actually blow your car off course. Second, they can blow other vehicles, including big tractor-trailers, off course, posing significant danger to other motorists on the road. This is thoroughly answered here.
What wind speed is considered gale force?
JetStream Max: Beaufort Wind Force ScaleBeaufort Wind ForceWind AverageBritish term730 kt 35 mph 56 km/hNear gale837 kt 43 mph 68 km/hGale944 kt 51 mph 82 km/hStrong Gale1052 kt 59 mph 96 km/hStorm14 more rows
What gale force is 40 mph?
Modern scaleBeaufort numberDescriptionWind speed7High wind, moderate gale, near gale50–61 km/h13.9–17.1 m/s8Gale, fresh gale34–40 knots39–46 mph45 more rows
Is 20 mph winds strong?
Sustained wind speeds around 20 mph, or frequent gusts of 25 to 30 mph. " No Discernable Threat to Life and Property from High Wind." The sustain wind speeds are non-threatening; "breezy" conditions may still be present. Note: In "High Wind" conditions, small branches break off trees and loose objects are blown about.
What is stronger than a gale force wind?
This is all very clearly set out in the modern Beaufort scale, and a storm force winds are stronger than gale force (there is some overlap in the gradations, with the lowest category storm being equivalent to a “full gale”, which is stronger than a “severe gale”).26-Nov-2021
What is the highest gale force?
The Beaufort ScaleWind ForceDescriptionWind Speed9Strong Gale41-4710Storm48-5511Violent Storm56-6312Hurricane64+10 more rows
How strong is 15mph wind?
Breezy is described as a sustained wind speed from 15-25 mph. Windy is a sustained wind speed from 20-30 mph. … Sustained winds between 30-40 mph.15-Dec-2021
What is a Level 5 wind?
5. 17-21. Fresh Breeze. Moderate waves 4-8 ft taking longer form, many whitecaps, some spray. Small trees in leaf begin to sway.
How Strong is 13 mph wind?
Beaufort numberDescriptionSpeed2Light Breeze4 to 7 mph3Gentle Breeze8 to 12 mph4Moderate Breeze13 to 18 mph5Fresh Breeze19 to 24 mph9 more rows
What is considered a fast wind speed?
Beaufort Wind Scale0 --- Calmless than 1 mph (0 m/s)8 --- Fresh gale39 - 46 mph 17-20 m/s9 --- Strong gale47 - 54 mph 20.5-23.5 m/s10 -- Whole gale55 - 63 mph 24-27.5 m/s11 -- Storm64 - 73 mph 28-31.5 m/s8 more rows
What wind speed is a tornado?
The Fujita ScaleThe Fujita Scale of Tornado IntensityF-Scale NumberIntensity PhraseWind SpeedF1Moderate tornado73-112 mphF2Significant tornado113-157 mphF3Severe tornado158-206 mph4 more rows
What is classed as gale force winds UK?
55-63 Mph 89-102 kph 48-55 knots Whole Gale or Storm Trees are broken or uprooted, building damage is considerable. Large waves (6-9 meters), overhanging crests, sea becomes white with foam, heavy rolling, reduced visibility. 64-72 Mph 103- 117 kph 56-63 knots Violent Storm Extensive widespread damage.
How many knots of wind is a gale warning?
gale, wind that is stronger than a breeze; specifically a wind of 28–55 knots (50–102 km per hour) corresponding to force numbers 7 to 10 on the Beaufort scale. As issued by weather service forecasters, gale warnings occur when forecasted winds range from 34 to 47 knots (63 to 87 km per hour).
What is Level 7 wind resistance?
7. 32-38 mph. Resistance in walking against the wind. 8. 39-46 mph.24-Dec-2021
What do 25 mph winds feel?
The winds of 15-25 mph, with gusts of up to 45 mph, may blow around unsecured objects, take down tree limbs and potentially cause power outages. Wind chill values will be in the 20s to 30s throughout the day. - at 19 to 24 mph, smaller trees begin to sway. ... - at 39 to 46 mph, branches and limbs can be broken from trees.02-Nov-2020
Which is stronger gale or storm?
is that gale is (meteorology) a very strong wind, more than a breeze, less than a storm; number 7 through 9 winds on the 12-step beaufort scale while storm is (meteorology) a wind scale for very strong wind, stronger than a gale, less than a hurricane (10 or higher on the beaufort scale).
What gale Force is a hurricane?
Through 1986, the National Hurricane Center used the term gale to refer to winds of tropical force for coastal areas, between 33 knots (61 km/h; 17 m/s; 38 mph) and 63 knots (117 km/h; 72 mph; 32 m/s). ... A common alternative definition of the maximum is 55 knots (102 km/h; 63 mph; 28 m/s).
History
The scale was devised in 1805 by the Irish hydrographer Francis Beaufort (later Rear Admiral ), a Royal Navy officer, while serving on HMS Woolwich.
Weather scale
Beaufort's name was also attached to the Beaufort scale for weather reporting:
