Grampian Weather Services
"The weather ... as forecast"
Forecasts & Climate
Radar & Satellite
Technical Blog - Short Meteo Lessons
January 4, 2016
Radiation fog is formed by the cooling of land after sunset by thermal radiation in calm conditions with clear sky. The cool ground produces condensation in the nearby air by heat conduction.
It is similar to misting up of a mirror when taking a shower.
Calm winds prevent the fog from being mixed with drier layers and dissipating.
In this case, the snow covered fields in the valley cool the lower air layers and create an inversion (stable).
** LESSON: Snow after rain? **
** LESSON: How do we trace air masses? **
January 21, 2016
** LESSON: Frost severity **
January 16, 2016
** LESSON: Are weather apps and websites reliable? **
January 10, 2016
** LESSON: How does the jet stream influences the weather? **
** LESSON: What do "chance", "likely" or "developing" mean? **
** LESSON: What's radiation fog? **
January 2016 (7)