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

loughside

Nqp15hhu wrote: »

Air temperature is 2.1c
Dew point is 0.0c
Wet bulb is 0.5c

We will have to rely on cooling or evaporative cooling. I am not sure if the temperature will drop further.

The wind is south easterly, calm.

Still 0C here in Co. Down, clear blue sky... 15.45pm


beautiful winters day!

Danno

Interesting temperatures around today and large variations on the wow.met.ie map.

I'm particularly taking notice of the 5c's from Met Eireann ACS stations from Tulla, Clare to Emyvale, Monahan. A thin sliver of a warm sector?



A little mild blip on my own AWS chart too, but put that down to the sunshine coming through: http://www.laoisweather.com/images/temp.png

Interesting little dynamics going on across the country.

pad199207

Already gone below freezing here in Kildare now

ffarrell7

Up in Dublin Mountains today.... Around 350 metres.... Up to 20 cm of snow in places.... Have taken loads of photos but they won't attach when I click on the attach files pin.. Any other way of doing it????

mojesius

Feck all snow in South Wicklow but beautiful day, biting wind is gone, snow remaining just on the mountain tops.

Gaoth Laidir

Nqp15hhu wrote: »

The charts seem to forecast it falling below 0c here, but I am not convinced. It is falling very slowly.

The only saving grace would be evaporative cooling.

Magilligan (sea level, coastal station) was colder than Lough Fea (225 m amsl, well inland) at 2 pm (1.4 v 1.9 °C, respectively).

pistolpetes11

ffarrell7 wrote: »

Up in Dublin Mountains today.... Around 350 metres.... Up to 20 cm of snow in places.... Have taken loads of photos but they won't attach when I click on the attach files pin.. Any other way of doing it????

Via twitter first is probably best

Nqp15hhu

Cloud is moving in.. as said a moment ago

Supercell

ffarrell7 wrote: »

Up in Dublin Mountains today.... Around 350 metres.... Up to 20 cm of snow in places.... Have taken loads of photos but they won't attach when I click on the attach files pin.. Any other way of doing it????

They may be too big or of a unusual format. try resizing into jpg or png format for example.

redsteveireland

nacho libre wrote: »

It's beginning to cloud over now. It's a pity we could not have a freeze before the cloud rolled in.

Didn't thaw here in parts of county Galway at all, temp in Galway city was around 3 degrees when I left there at 3pm. Its between 0 and. 5 roughly 20kms away from the city.

pad199207

Decent accumulations in the west Wicklow mountains this afternoon likely to be topped up tonight

Snowbiee21

pad199207 wrote: »

Decent accumulations in the west Wicklow mountains this afternoon likely to be topped up tonight

Bliss! Thanks for sharing

Nqp15hhu

Dropping very slowly. Now 1.5c.

Barnaboy

pad199207 wrote: »

Decent accumulations in the west Wicklow ]

Lovely pictures, thanks for sharing. BUT, I appeal to everyone not to go driving on the hunt for snow. First of all there is a 5km limit on travel, which means almost nobody should be up there.

Mountain rescue teams are busy all over the country rescuing ill equipped people. Don't be putting these brave volunteers to work.

Keep everyone safe.

sumo12

Barnaboy wrote: »

Lovely pictures, thanks for sharing. BUT, I appeal to everyone not to go driving on the hunt for snow. First of all there is a 5km limit on travel, which means almost nobody should be up there.

Mountain rescue teams are busy all over the country rescuing ill equipped people. Don't be putting these brave volunteers to work.

Keep everyone safe.

Spoilsport!!!!

(But you are right, absolutely 100%)

kerrycork13

Its 1 degree here at 4.45 thin cloud to my north west. I still reckon it will get to zero or less when darkness falls.

Rathmore in East Kerry North Cork border. 150m Asl.
Interesting night ahead.

Kermit.de.frog

Expecting icy conditions here from early in the night. Ground very wet from the showers the last couple of days.

1.8c here atm.

Gaoth Laidir

UKMO for midnight:

Met Situation Valid at 0000 UTC

A GEN LIGHT TO MOD W FLOW, LCA STRONG NW FLOW IN NW, AND LIGHT TO MOD SW FLOW IN NE.
A LOW CENTRE LIES NEAR KIRKWALL, MOV E AT 10KT.
A SLOW MOV WARM FRONT LIES WICK TO N5900 W00400 TO SHETLAND.
A COLD FRONT LIES N5900 W00200 TO BANFF TO ISLAY TO BELMULLET, MOV E AT 10KT IN N AND SSE AT 10KT IN THE S.
A TROUGH LIES N5900 W00600 TO N5800 W01000, MOV SE AT 15KT.

Freezing Level
GEN 1000FT, BUT LCA 500FT CENTRAL SCOTLAND AND NORTHERN ENGLAND, AND 2000FT NEAR FRONTS.

Weather Conditions
ZONE 1
SE OF A LINE N5500 W00900 TO TIREE TO CAPE WRATH TO N6000 W00430 TO N6200 W00130, THIS LINE MOV SSE AT 10KT IN S BUT SLOW MOV IN N. ALSO NW OF A LINE BANTRY TO BELFAST TO PRESTWICK TO ABERDEEN TO N5800 W00100 TO FAIR ISLE TO N6100 E00030, THIS LINE GEN MOV SSE AT 10KT, BUT MOV SE AT 5 KT IN FAR N.
GEN 15KM IN OCNL RA, WITH 1-4/8ST 800-1200FT/1500 AND 5-7/8CuSc AND AcAs 2000FT/14000.
WDSPR, 6 KM IN RA OR RADZ, WITH 3-6/8ST 600-800FT/1500 AND 7-8/8CuSc AND AcAs 1500FT/14000.
OCNL 3000 M IN RADZ OR HVY RA, OR RASN LAN, WITH 5-7/8ST 600FT/1500 AND 8/8CUSC AND AcAs 1500FT/16000.
ISOL, MON AND LAN SE, 800M IN SN, WITH 5-7/8ST 500FT/1500 AND 8/8CUSC AND AcAs 1500FT/14000.
WRNG: HILL FG. MOD ICE AND MOD TURB IN CLD. MOD TURB BLW 6000FT NEAR LOW.

ZONE 2
SE OF ZONE 1, BUT NW OF A SLOW-MOV LINE WATERFORD TO ARKLOW TO KESWICK TO NEWCASTLE TO N5830 W00130.
GEN 30KM, WITH 0-5/8CUSC 1500-3000FT/4000-6000.
ISOL 200 M IN FZFG, WITH 7/8ST SFC/500-1000.
WRNG: HILL FG. MOD ICE AND MOD TURB IN CLD.

Nqp15hhu

Barnaboy wrote: »

Lovely pictures, thanks for sharing. BUT, I appeal to everyone not to go driving on the hunt for snow. First of all there is a 5km limit on travel, which means almost nobody should be up there.

Mountain rescue teams are busy all over the country rescuing ill equipped people. Don't be putting these brave volunteers to work.

Keep everyone safe.

Yes you can crash your car in packed snow like that and you’ll be stuck of hours.

I learn’t my lesson last year.

Nqp15hhu

Gaoth Laidir wrote: »

UKMO for midnight:

Is this system going to bring warm advection ahead of the front or will temperatures be stable within the precipitation? I am wondering if I manage to get down to 0c, will we be able to sustain that temperature?

Danno

Nqp15hhu wrote: »

Is this system going to bring warm advection ahead of the front or will temperatures be stable within the precipitation? I am wondering if I manage to get down to 0c, will we be able to sustain that temperature?

The GFS says you'll get -3c uppers around 1am according to this:




It also shows rain on the back edge for areas within 10 miles of Lough Foyle/North Coast:




Air temps around +1c:



Knife-edge! :eek:

Gaoth Laidir

Met Éireann airport warnings.

Cork

EICK AD WRNG 02 VALID 070500/071200 SNOW FBL 1 to 3 CM FCST=
EICK AD WRNG 01 VALID 061600/071000 FROST FBL GND AND FBL AIR FCST=

Dublin

EIDW AD WRNG 02 VALID 070400/071100 SNOW FBL 1 to 3 CM FCST=
EIDW AD WRNG 01 VALID 061700/071200 FROST FBL GND AND FBL AIR FCST=

Casement

EIME AD WRNG 02 VALID 070600/071100 SNOW FBL 1 to 3 CM FCST=
EIME AD WRNG 01 VALID 061800/071400 FROST FBL GND AND FBL AIR FCST=

Shannon

EINN AD WRNG 02 VALID 070100/071100 SNOW FBL 1 to 3 CM FCST=
EINN AD WRNG 01 VALID 061100/071100 FROST FBL GND AND FBL AIR FCST=

Knock

EIKN AD WRNG 02 VALID 062100/070300 SNOW FBL 1 to 3 CM FCST=
EIKN AD WRNG 01 VALID 061600/070800 FROST FBL GND AND FBL AIR FCST=

Nqp15hhu

Danno wrote: »

The GFS says you'll get -3c uppers around 1am according to this:

It also shows rain on the back edge for areas within 10 miles of Lough Foyle/North Coast:

Air temps around +1c:

Knife-edge! :eek:

Just wondering if we cool to 0c in precipitation if we can sustain that for a few hours.

KingJeremy

I can not get enough of this weather - bright blue skies and so cold. I don’t have a weather station but when I was in the car a few times during the day the temp said it didn’t get to more than +1.
Lough Derg well frozen in parts - attached is a pic of a couple of hardy swans walking on it.
Note: this is all well within my 5km ;-)

East Co Galway

Donegal Ken

pad199207 wrote: »

Decent accumulations in the west Wicklow mountains this afternoon likely to be topped up tonight

Class photos Pádraig.

Danno

https://twitter.com/LaoisWeather/status/1346867927702794246?s=19

Recent photo from here in southern Laois. Currently -1.0c.

Kermit.de.frog

Kermit.de.frog wrote: »

Expecting icy conditions here from early in the night. Ground very wet from the showers the last couple of days.

1.8c here atm.

2c here in Arklow under cloud adjacent to showers hugging the coast
Wet bulb is 0.4c and dewpoint is -1.4c

Danno

Nqp15hhu wrote: »

Just wondering if we cool to 0c in precipitation if we can sustain that for a few hours.

It would be great if you could, however it also needs to be -0.1c or lower all the way back up to the cloudbase right overhead and into the cloud layer too.

Nqp15hhu

Danno wrote: »

It would be great if you could, however it also needs to be -0.1c or lower all the way back up to the cloudbase right overhead and into the cloud layer too.

And yet you predict up to 5cm for your area. Despite weakened precipitation.

Reckless Abandonment

Nqp15hhu wrote: »

And yet you predict up to 5cm for your area. Despite weakened precipitation.

I think he's predicted slight dusting to 5cm. No one ever knows exactly how these things work out