Windspeed in MPH Description - Visible Condition
0 Calm smoke rises vertically.
1 - 4 Light air direction of wind shown by smoke but not by wind vanes.
4 - 7 Light breeze wind felt on face; leaves rustle; ordinary wind vane moves.
8 - 12 Gentle breeze leaves and small twigs in constant motion.
13 - 18 Moderate breeze raises dust and loose paper.
19 - 24 Fresh breeze small trees in leaf begin to sway.
25 - 31 Strong breeze large branches in motion; telephone wires whistle.
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.
For this week we are expecting:
Monday 9.00 a.m. Whole Gale (62mph).
Tuesday 00.00 midnight Hurricane (81 mph) reducing by midday to Whole Gale (55 mph).
Wednesday 12.00 Fresh Gale (45 mph).
Thursday 18.00 Strong Gale (53 mph) 18.00 Storm (72 mph).
the trusty Stronsay Pier weather vane
for wind direction.