Yearby airfield weather station realtime wind meter. Can,t get any closer to the field than that for wind speed?.
http://www.yearbyweather.co.uk/to change wind speed to mph click wind tab bottom left.
1 knots = 1.15077945 mph
5 Knots = 5.8 MPH
10 Knots = 11.5 MPH
15 Knots = 17.3 MPH
20 Knots = 23.0 MPH
25 Knots = 28.8 MPH
30 Knots = 34.6 MPH
airfield web site
http://www.acro.co.uk/html/acro_airstrip.htmBeaufort Wind Scale
Windspeed
in MPH Description - Visible Condition
0 Calm smoke rises vertically from wilton smoke stacks a dream day.
1 - 4 Light air direction of wind shown by smoke but not by wind vanes perfect flying.
4 - 7 Light breeze wind felt on face; leaves rustle; ordinary wind vane moved by wind still good flying.
8 - 12 Gentle breeze leaves and small twigs in constant motion; wind extends light flag getting a bit twichy.
13 - 18 Moderate breeze raises dust and loose paper; small branches are moved planes start to move on there own.
19 - 24 Fresh breeze small trees in leaf begin to sway; crested wavelets form on inland water time to go home
25 - 31 Strong breeze large branches in motion; telephone wires whistle; umbrellas used with difficulty
32 - 38 Moderate gale whole trees in motion; inconvenience in walking against wind
39 - 46 Fresh gale breaks twigs off trees; generally impedes progress
47 - 54 Strong gale slight structural damage occurs; chimney pots and slates removed
55 - 63 Whole gale trees uprooted; considerable structural damage occurs
64 - 72 Storm very rarely experienced; accompanied by widespread damage
73+ Hurricane devastation occurs jeff and pete decide to give up and go home no trees left for jeff to hit
Thu May 07, 2015 8:15 am by 
