Cold Spell Discussion (21/12/09) (Scattered snow showers today)

Tactical

Brilliant

fintonie

irish1967 wrote: »

I think a Limerick would be apt...

There was a young chap from Limerick
Who started to act like a pr**k
All he wanted to know
Was is it gonna snow
But a mouse click from a mod did the trick

is it snowing where you are

Cul a cnoic

Same as last night here in West Donegal with the lightening back and hail showers. Still hovering at 0c.

nacho libre

j1979p wrote: »

Not necessarily either. It doesn't take that low a temp for frost to occur. If the winds stay light, the temp will still drop but just at a much slower rate than would occur under clear skys.

Pretty simple really, the only way it will heat up is if heat is added. How does that happen? Well, the sun or a wind bringing warm air from say the sea.

That's why we want light or no winds

Sorry, unlike almost all of the snow freaks on ths board, I am a temperature freak and would really love to see a -20 record set in Ireland

yeah it will be interesting to see if any place records a - 6 or lower tonight. if it's-4 already in mullingar might the temperature be expected to drop another degree or two there by the early hours. by the way is it true that the coldest time of night is at 4-5 am?

irish1967

Been no thunder here in donegal town yet. Dam that would be awesome. My two favourite weathers in one day... Snow and thunder.

eskimocat

leahyl wrote: »

OMG that is ridiculous seriously - the people in those cars must have a screw loose!:eek:

Hiya Leahyl!! missed you these past posts... i know i promised you a snow animal but sadly the snow we had was the hail mix kind and wouldn't clump together or roll properly told hubby what request was but we had trouble even making snowballs stick together so no go this time! however i will keep it in mind if we get the right kinda snow...

leahyl

irish1967 wrote: »

I think a Limerick would be apt...

There was a young chap from Limerick
Who started to act like a pr**k
All he wanted to know
Was is it gonna snow
But a mouse click from a mod did the trick

Wow this chap from Limerick is getting an awful going over!

Villain

nacho libre wrote: »

by the way is it true that the coldest time of night is at 4-5 am?

Varies really some people say its the midpoint between dusk and dawn, although I recorded my coldest temp the other night (-5.2c) at 7:30am

leahyl

eskimocat wrote: »

Hiya Leahyl!! missed you these past posts... i know i promised you a snow animal but sadly the snow we had was the hail mix kind and wouldn't clump together or roll properly told hubby what request was but we had trouble even making snowballs stick together so no go this time! however i will keep it in mind if we get the right kinda snow...

AAAAW Eskimocat thanks for trying! We might have some snow of our own come Wednesday so it might be me that is making the snow animals hehe:D

Tactical

Since its been brought up, what was the lowest temperature ever recorded in Ireland?

If it snows again, anyone taking pictures should write Leahyl a message in the snow;)

j1979p

nacho libre wrote: »

yeah it will be interesting to see if any place records a - 6 or lower tonight. if it's-4 already in mullingar might the temperature be expected to drop another degree or two there by the early hours. by the way is it true that the coldest time of night is at 4-5 am?

The coldest time of night (taking a simplified inversion scenario) will always be just before sunrise - the maximum amount of radiative cooling.

Of course in a place like ireland where wind changes direction a lot and cloud cover varies - thats not always the case!

patneve

nacho libre wrote: »

yeah it will be interesting to see if any place records a - 6 or lower tonight. if it's-4 already in mullingar might the temperature be expected to drop another degree or two there by the early hours. by the way is it true that the coldest time of night is at 4-5 am?

It's already -6 near longford:D (http://www.irelandsweather.com/)...

EDIT: gone up to -4 now

Tactical

Ok, a quick google has revealed lowest temperature

The lowest air temperature was -19.1°C measured at Markree Castle, Co. Sligo on 16th January 1881 while the lowest observed 20th century air temperature was -18.8°C recorded at Lullymore, Co. Kildare on 2nd January 1979.

Taken from Met Eireann

http://www.met.ie/climate/temperature.asp

Villain

patneve wrote: »

It's already -6 near longford:D (http://www.irelandsweather.com/)...

EDIT: gone up to -4 now

-4 is the coldest I see??

leahyl

Tactical wrote: »

Since its been brought up, what was the lowest temperature ever recorded in Ireland?

If it snows again, anyone taking pictures should write Leahyl a message in the snow;)

They so should!:D I will also write you messages when i get my snow because i am of course going to get some...ahem...:rolleyes:

G-Money

Anyone been driving up around Monaghan/Castleblayney? If so, what are the roads like?

j1979p

Villain wrote: »

Varies really some people say its the midpoint between dusk and dawn, although I recorded my coldest temp the other night (-5.2c) at 7:30am

A very common misconception as people believe that the temp rises as the sun makes its way around the other half of the earth.

Thinking about it a little makes it clear that there is still zero radiation heating the surface or atmosphere.

Villain

j1979p wrote: »

A very common misconception as people believe that the temp rises as the sun makes its way around the other half of the earth.

Thinking about it a little makes it clear that there is still zero radiation heating the surface or atmosphere.

I would think it is before dawn just as I recorded before this week others who disagree like : http://www.islandnet.com/~see/weather/elements/dawncold.htm They say after dawn

A Dub in Glasgo

patneve wrote: »

It's already -6 near longford:D (http://www.irelandsweather.com/)...

EDIT: gone up to -4 now

A jump of 2c in a matter of minutes, not very reliable. One of the weather stations in Co Clare is reporting -39.6c!

irish1967

No offence meant to anyone but when someone asks "what are the roads like?" I always am tempted to say that they are kinda wide black things with a white line down the middle.

A Dub in Glasgo

Surely you can't be serious!

ninebeanrows

Icing hard out there with mist and fog encroaching.

TomTom

Red blob overhead and nothing falling, boo hoo

fintonie

irish1967 wrote: »

No offence meant to anyone but when someone asks "what are the roads like?" I always am tempted to say that they are kinda wide black things with a white line down the middle.

im thinking now you didnt put that limerick together:D

Rougies

A Dub in Glasgo wrote: »

A jump of 2c in a matter of minutes, not very reliable. One of the weather stations in Co Clare is reporting -39.6c!

It wasn't minutes, it was least an hour. Patneve just hadn't checked it again until after he posted. It is one of the NRA stations which are very reliable in my experience.

Danno

A Dub in Glasgo wrote: »

A jump of 2c in a matter of minutes, not very reliable. One of the weather stations in Co Clare is reporting -39.6c!

The station in Lahinch has a known fault with it's sensor. It is due to be repaired in the new year. The rest of the data is fine.

A jump of 2c in a matter of minutes is possible. In fact, google throws up this... http://montanakids.com/facts_and_figures/climate/Temperature_Extremes.htm

Tactical

Just listening to a car attempting to drive along the road outside my house. All revs and very little forward motion, its a wonder he's made it this far. Must wander down for a peep and see how he'll get on :rolleyes:

maquiladora

GFS 18Z is a stunner in FI, a 6 day snowfest to start 2010! lol

A shame it will never happen.

Villain

maquiladora wrote: »

GFS 18Z is a stunner in FI, a 6 day snowfest to start 2010! lol

A shame it will never happen.

Sure is but it ain't called the pub run for no reason!

mad DIY

Tactical wrote: »

Ok, a quick google has revealed lowest temperature

The lowest air temperature was -19.1°C measured at Markree Castle, Co. Sligo on 16th January 1881 while the lowest observed 20th century air temperature was -18.8°C recorded at Lullymore, Co. Kildare on 2nd January 1979.

Taken from Met Eireann

http://www.met.ie/climate/temperature.asp

I remember the good old days with proper winters, when forecourts used to have problems with their diesel freezing it was so cold :cool: