Dublin TAF shows light rain from midnight, tempo sleet from 3 am as light variable winds increase easterly 15 gusting 25 knots from 2 am. The airport may be about the extent of the marine layer, further inland should see more of a snowy nature.
Knock is hell for leather snow...
TAF EIKN 091100Z 0912/1012 VRB03KT 9999 FEW010 SCT025
PROB30 TEMPO 0916/0921 3000 BR BKN005
BECMG 0921/0924 11012KT 3000 -SN SCT003 BKN007
TEMPO 0923/1012 1200 SN OVC002
BECMG 1001/1003 08015KT
TEMPO 1003/1006 09016G26KT BECMG 1010/1012 05013KT=
Originally Posted by Rebelbrowser
I wonder could I ask again a question I posed in the other thread, namely what is different about this set up from normal that gives the big snow risk? I thought you would need deep imbedded cold for such a battleground scenario to occur but I dont see that in the upper temps. What am I missing?
You won't see that in the upper charts. Looking at 850 hPa temperatures is useless in this setup as we're not talking about convective snow in normal lapse rates. The sounding below shows how temperature is actually fairly constant with height through the bottom few thousand metres, and is at or below zero. 850 hPa temp is only -2 °C, which would not normally hint at anything other than rain.
Originally Posted by ZX7R
Technical question, as mentioned in the other thread about heavy perception, would met eairann take into account, evaporation snow fall into account when making there forecast for snow fall tonight, as well as the low temperatures
As the whole lower atmosphere is completely saturated there is no scope for evaporative cooling.