|
TywyddCymraeg yma'n fuan...
| Approximate air speed at boom height* | Beaufort Scale | Description | Visible Signs | Spraying | |
| Less han 2 km/h (Less than 1.2 mph) | Force 0 | Calm |  |
Smoke rises vertically | Only use medium or coarse spray quality |
| 2 - 3.2 km/h (1.2 - 2 mph) | Force 1 | Light air |  |
Direction shown by smoke drift | Acceptable spraying conditions |
| 3.2 - 6.5 km/h (2 - 4 mph) | Force 2 | Light Breeze |  |
Leaves rustle, wind felt on face | Ideal spraying conditions |
| 6.5 - 9.6 km/h (4 - 6 mph) | Force 3 | Gentle Breeze |  |
Leaves and twigs in constant motion | Increased risk of spray drift. Take special care |
| 9.6 - 14.5 km/h (6 - 9 mph) | Force 4 | Moderate |  |
Small branches moved, raises dust or loose paper | Spraying inadvisable |
Cysylltu
Cyswllt: John Rhys Owen
Cyfeiriad: JR Owen Crop Sprayer/Tester, Bryn Teg Llanwnda Caernarfon Gwynedd,
LL54 5TG
Ebost: jrowencropsprayers@gmail.com
Ffôn: 07717 496705
