Corsock Weather Station 55 04' N 3 56' W 114 metres amsl |
| Group | Value | Notes |
| Date + time | 1920Z on day 21 of month | All observations are in Zulu UTC |
| Wind | Wind direction: 340 degrees at 1 kt | Wind given is 10 minute mean |
| Visibility | CAVOK - visibility more than 10km, no cloud below 5000ft and no significant weather | Visibility less than 5,000m - mist, less than 1,000m - fog |
| Temp/Dewpt | 12/10 | Prefix M denotes minus value, values rounded to nearest C degree |
| QNH | 1018 hPa | Sea level pressure corrected to ISA |