Severe Weather Snow / Ice Weds 28 FEB ( Onwards ) ** READ MOD NOTE POST#1**

NegativeCreep wrote: »

Is anyone in Dublin getting proper snow? Still getting them ice pellets in Blanch

D14... snow for ~30mins now. Has moved up a notch or two alright. There is 2 x cavity blocks out back stacked one on the other and they're covered. both were visable this afternoon!

After a few hours of constant very light snow, it is finally getting heavier in Rochestown. Road has regained it's cover which it lost from everyone walking on it today. Gusty out too. Can see the snow swirling and going horizontally past the lamp post.

Bloody mad here in d13

Hasn't stopped and looking like its getting worse and worse

Cant stop looking at it proper siberian stuff goin down

Goes great with REM and Alcohol

What are all these different types of snow? Here's a 60-second crash course!

▪ Wet snow: Snow flakes with a relatively high liquid water-content due to the lowest 1-2 km of the atmosphere being close to zero. They're usually large as they stick together easily as they fall. Good for snowballs but doesn't drift easily. We normally get this type of snow.

▪Dry snow: Smaller snow flakes with very low liquid water-content due to a very cold and dry lowest 1-2 km. This beast from the east is very cold and dry so the snow's been dry. It's not good for snowballs but drifts easily. Forms a much deeper covering than wet snow.

▪Snow grains: Tiny opaque grains of snow formed in cold but more stable conditions (like where we'd expect to get drizzle). We're getting these this evening as the air over the Irish Sea is stable above about 1 km.

▪Ice pellets: Smaller pellets of clear ice, formed by the partial melting of snowflakes falling through a warm layer, but then freezing again in the cold surface layer.

▪Graupel: Little balls of snow, but actually a snowflake covered by a layer of ice. Formed when a snowflake is blown back up into the supercooled region of a cloud (liquid water below 0 °C), where the liquid freezes around the flake. Formed at the edge of cold streamers.

▪Streamers/Sea-effect showers: Lines of showers formed by the heating of a cold airmass over a warmer sea surface. If the air at 850 hPa (~1400 m) is at least 13 degrees colder than the sea surface then these showers can form, as long as the sea track is long enough. In an easterly like this week Wales or the Isle of Man can reduce or prevent their formation due to the reduced sea track between there and the east coast.

▪ Dynamic snow: Snow formed by the more familiar weather fronts and not through convection/sea-effect action. Covers a wide area. This is what Emma will bring us tonight.

▪Freezing rain: Supercooled rain (rain that is still liquid despite being below 0 °C) that freezes on surfaces still cold from a preceding cold spell. Forms when snow falls through a warm upper layer thick enough to melt the snow, but then falls back down into a sub-zero surface layer.

Fergal - IWO

Calibos wrote: »

Its obviously all just blowing up the Putland Road then. Seriously. Maybe the wind is at its strongest down here as it has no obstructions over the sea and after it climbs the Putland to the Boghall where ALDI is @ 157m the clouds are dumping what the winds down here kept aloft and then even more due to orographic lift

How about a pic? I’m less than 500m from the Meath Road and we have several cm at this stage, with drifts of deeper snow up against the house.

No wind at all here in Limerick city suburbs, consistent unbroken light snow since 9pm, approx 3cm, so 1cm per hour, approx 20m asl. No lying snow at 7pm-last nights snow had thawed in sun. Radar shows more to come.

northgirl wrote: »

I was just going to have a hot toddy (craving sugar) but I opened the bottle and well I don't like whiskey at all

Whiskey is overrated

Port has that sweetness and warms you up nicely. Especially if snow starts to drift outside!

Got the snow but where is this storm?

Pelting down in East Galway again

Lamp posts are attempting to tilt at Grange in the strong easterly winds. Ooh

Still nothing of any note in South West Laois. Light breeze but no snow falling. I wonder how long I'll have to stay up for to see any of it. Its almost like an eery calm at the minute