Spring 2021 General Discussion

any reports from Dunshaughlin/Ashbourne? there was an intense-looking shower there on the radar about an hour ago, almost streamer-like.

Status Yellow - Rainfall warning for Donegal
Met Éireann Weather Warning

Heavy rain at times during the period. Potential for surface and river flooding.

Valid: 15:00 Friday 12/03/2021 to 15:00 Saturday 13/03/2021

Interesting article from the French Met on factors which favour Night cooling. Mouthe is a good example of this. Personally I never even considered tree coverage as a factor.

-the fact that the valleys are sparsely wooded. The absence of vegetation at the bottom of the valley favors the cooling of the soil compared to areas covered with forests, which on the contrary help to limit losses by radiation;
-the presence of snow on the ground, which causes a much greater loss of energy than grass, especially when it comes to fresh snow. In an already cold air mass, the presence of snow will promote an additional drop in air temperature which can reach 10 to 20 degrees depending on the nature of the crystals on the surface of the snowpack;
-the particular topography of the flat-bottomed valleys. This form of "bowl" favors the loss of energy by radiation

Full article https://meteofrance.com/actualites-et-dossiers/magazine/les-secrets-de-la-meteo/la-meteo-en-questions/pourquoi-mouthe-doubs