Light Snow - Overnight Wed/Thu 6th/7th January 2021

Cluedo Monopoly

Rain seems to be heading towards Galway on the radar but it doesn't feel like it will rain or snow

Nqp15hhu

Pangea wrote: »

Officially Rain here , bummer.
Temperture not low enough.

It clouded over too early for us. I am expecting wet snow. But no sticking.

Will be watching the stations in Donegal to see if much evaporative cooling takes place.

ZX7R

Reckless Abandonment wrote: »

Where's Nqp15hhu gone. He should be keeping us posted on the front..

Out playing in the snow or jumping in the puddles.

Nqp15hhu

It is 1.2c here, it got down to 0.9c before rising and stabilising. Based on similar past events, I am expecting light rain before wet snow if evaporative cooling takes hold.

Danno

Nqp15hhu wrote: »

I can tell that this is going to go the way of the event a few years ago. Lots of virga and a short spell of snow, then rain.

Could possibly happen, but what tells you this, or is it just a hunch?

Nqp15hhu

Three stations to watch to see if evaporative cooling takes place.

Gaoth Laidir

Nqp15hhu wrote: »

It is 1.2c here, it got down to 0.9c before rising and stabilising. Based on similar past events, I am expecting light rain before wet snow if evaporative cooling takes hold.

There's not much scope for evaporative cooling tonight. It's all or nothing.

Magilligan is also reading 2.1 with a dewpoint of 0.2. Cloud 7-okta at 10,000 ft, 2-okta at 3600 ft.

lolie

-4c out now and it definitely feels like the coldest evening so far this winter.
Looking forward to later.

Nqp15hhu

Three stations to watch to see if evaporative cooling takes place.





If they start slowly rising, it’s game over for me and most people below 100 metres.

Meteorite58

In general the ECM showing more snow accumulations than the other models I would reckon especially in Northern counties and N Midlands.

ICON a bit lighter and further W, most of the models looking like the ECM and WRF with best chance of some lying snow but as has been mentioned very light for many with merely a dusting with some areas maybe getting 2 to 3cm more so on higher elevation like hills

Temps look quite low in the Eastern half of the country tomorrow morning so any snow that fell should last some time. Plenty of slipping and sliding tomorrow on the roads and footpaths.

Nqp15hhu

Gaoth Laidir wrote: »

There's not much scope for evaporative cooling tonight. It's all or nothing.

Magilligan is also reading 2.1 with a dewpoint of 0.2. Cloud 7-okta at 10,000 ft, 2-okta at 3600 ft.

Why not? Some of the models show rain turning to snow about 11pm.

There is not much wind also.

Nqp15hhu

Danno wrote: »

Could possibly happen, but what tells you this, or is it just a hunch?

Because I think it will start as rain. I have had these sorts of events before and it always starts as rain before turning to wet snow. Even if it’s cold.

Kermit.de.frog

It's slow progress but a bit more momentum.

This will be all snow in the midlands and east falling on frozen surfaces so i'm 100% sure there will be a least a dusting here by the morning.

Nqp15hhu

Nqp15hhu wrote: »

Three stations to watch to see if evaporative cooling takes place.

Its starting to turn a bit to sleet and snow now in East Donegal,west Tyrone parts of Leitrim and on high ground in sligo

Monkeynut

Kermit.de.frog wrote: »

It's slow progress but a bit more momentum.

This will be all snow in the midlands and east falling on frozen surfaces so i'm 100% sure there will be a least a dusting here by the morning.

http://www.meteociel.fr/cartes_obs/radar/lastsnowradar_uk.gif

how long till it gets to dublin airport? lol

Nqp15hhu

AuntySnow wrote: »

Its starting to turn a bit to sleet and snow now in East Donegal,west Tyrone parts of Leitrim and on high ground in sligo

Yeah it’s a pity that cloud came in ahead of it. Most of us would’ve seen snow. Now I’m not convinced.

If warm advection doesn’t occur that could change.

Rebelbrowser

Scotland looks great on the radar. Ba$tards.

Monkeynut

Rebelbrowser wrote: »

Scotland looks great on the radar. Ba$tards.

They're trying to leave them. Leave it out. :pac::pac::pac:


But they'd make ya jealous. Its just proper pink. They eat the bread we get the crumbs.

Danno

Rebelbrowser wrote: »

Scotland looks great on the radar. Ba$tards.

Most of that appears to be in the highlands. Such a waste of perfectly good snow! :pac:

Kermit.de.frog

Nqp15hhu wrote: »

Yeah it’s a pity that cloud came in ahead of it. Most of us would’ve seen snow. Now I’m not convinced.

Most will see snow. Those near northwest, west and north coasts will not because not only is there a marine layer there but the temperatures are not quite low enough anyway in the layer just above that.

Very narrow margins.

a bit like this

Nqp15hhu

This app gives me a 60% chance of snow. http://www.sciencebits.com/SnowProbCalc?calc=yes

I still think it could start out as light rain.

Nqp15hhu

All three Donegal stations down 0.2c

Nqp15hhu

Kermit.de.frog wrote: »

Most will see snow. Those near northwest, west and north coasts will not because not only is there a marine layer there but the temperatures are not quite low enough anyway in the layer just above that.

Very narrow margins.

a bit like this

I will wait and see.

Oneiric 3

HIRLAM prep forecast (doesn't show type) for the overnight and tomorrow period:

https://i.imgur.com/7qv8c2X.mp4

Any rain that falls here will very likely freeze on impact from that front.Nightmare scenario for overnight and early morning commuters.

Danno

Currently -3.6c in south Laois

eastmayo

Snowing lightly the last 20min near knock Airport

Danno

Danno wrote: »

Currently -3.6c in south Laois

Nudging 0 now in Arklow in cloud with a slight sea breeze!

Nqp15hhu

There is a layer of ice here despite the 1c temp

kerrycork13

-2 and clear here
Rathmore east kerry north cork border. 150 asl

Kermit.de.frog

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