Half of the USA is covered in snow

This is something you don’t see every day. We recently heard that Canada had a white Christmas EVERYWHERE, the first time in four decades. Here we see that the USA has an increased albedo (surface reflectivity) for about 1/2 of it’s land area.  The increased albedo combined with low sun angle this time of year conspires to keep ice and snow unmelted.

Look for a long and extended winter weather pattern as we head towards the spring equinox, which can’t get here fast enough.

Here is a more colorful view of snow depth on Dec 25th from the National Hydrologic Remote Sensing Center:

Click for larger image

Jim G reports in comments:

On Dec 18th, the coverage was 59.4%

h/t to Ron de Haan and Fresh Bilge

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Paul
December 25, 2008 10:06 pm
Graeme Rodaughan
December 25, 2008 10:06 pm

More climate scientists need to step away from their computer monitors, walk out of their “climate controlled” offices and discover the real world outside the building.

kuhnkat
December 25, 2008 10:07 pm

Yup, a lot more people gonna be shovelin’ a lot more global warming this winter!! I’ll listen to the Farmers Almanac before the IPCC and Modelers.

Joel
December 25, 2008 10:22 pm

International Falls is running over 11 degrees below the December average so far this month based on NWS prelim. data summaries. Brrrrrrr

CharlesN
December 25, 2008 10:23 pm

Anthony, don’t you know by now that snow and cold are simply weather events?
It’s all explained here:
http://anhonestclimatedebate.wordpress.com/2008/12/05/understanding-man-made-climate-change/

Jim G
December 25, 2008 10:34 pm

Wow.
I wouldn’t have thought to look there.
On Dec 18th, the coverage was 59.4%
http://www.nohrsc.noaa.gov/nsa/index.html?region=National&year=2008&month=12&day=18&units=e

Roger Sowell
December 25, 2008 10:45 pm

Agree, it is rather snowy.
And, here is a website from NOAA that shows the northern hemisphere ice (in yellow) and snow cover (in white). This is updated daily.
“If it were not for global warming,
We would all be living in igloos.”

Roger Sowell
December 25, 2008 10:46 pm

And now, for the link:
http://www.nohrsc.noaa.gov/nh_snowcover/
oops.

Jeff Alberts
December 25, 2008 10:51 pm

You’d think all that change in albedo would cause some sort of tipping point. The fact that it hasn’t tells me that the climate isn’t nearly as sensitive to internal changes as we’re led to believe.

Leon Brozyna
December 25, 2008 10:55 pm

From Western NY, downwind of Lake Erie —
With temps in the 40’s and some serious rain on Christmas Eve, the foot and a half of snow out front has diminished to a couple inches. Technically, a white Christmas was had, though it was more a covering of frozen white slush. Saturday promises more rain with temps nearing 60, which should pretty much finish off that white stuff by Sunday.
Unfortunately, this is but a temporary reprieve. Until the lake finally freezes, we face not only the snow from the normal winter storm but also periodic lake effect snow events.
Overall, with so much snow on the ground this early in the season, it looks like we’re facing a really long cold season.

carlbrannen
December 25, 2008 11:16 pm

The tipping point is avoided so long as the snow appears only in the winter, when we get relatively little sunlight anyway. If we had 50% of the US covered in snow in July that would be a big problem.
I used to have the impression that the precession of the equinox (about 24,000 years) would cause ice ages when the winters were farther from the sun and summers closer. More recently I’ve realized that the ice age would happen the other way around. It’s cold summers that causes ice ages; our albedo is lowest in the summer and so it is the distance of the earth to the sun in summer that influences norther hemisphere ice ages. Now I’m going to go look up the data and see if this agrees with what the experts are saying. It’s been decades since I’ve read any of this stuff.

Mick
December 26, 2008 12:08 am

Paul,
The article mentions nothing about record warmth, only about warmth. Big difference.

Terry Ward
December 26, 2008 2:47 am

Mick (00:08:31) :
To be fair to Paul it does mention “potential” for “some” record breaking warmth in the Midwest. Que sera, sera.
Having watched precipitation events for the last couple of months, partly out of my dislike of HadleyMet/CRU and their pantomime villain predictions, I am not surprised by close to 60% snow coverage of the US. The amount of record precipitation events is very interesting and we will see extended and deeper cold in Jan/Feb/Mar. Couple that with moisture and we get chaos here in the UK where even the “wrong kind of leaves” will disrupt train travel and the average driver fails to appreciate the dynamics of rubber and oil forming as a layer over tarmac that water/snow then turns into “all icerinks lead to Rome”.
I predict record sales of snow-chains 😉
“Oh no you don’t”.

Dell Hunt, Jackson, Michigan
December 26, 2008 5:00 am

I’ve posted this before, but thought it is appropriate again here.
(To the tune “Let it Snow)
Oh the weather outside is frightful.
But to the “skeptics” it’s so delightful.
Temps have dropped down low.
Let it snow! Let it snow! Let it snow!
Al Gore promised global warming.
But instead it’s been cold and storming.
And solar activity has dropped way low.
Let it snow! Let it snow! Let it snow!
Since sunspots have dropped out of sight.
A Global Cooling trend has started to form.
Proves the “skeptics” are proven right,
More CO2 does not cause Earth to warm.
The Solar Cycle is still slowly dying,
And Global Warming we are “good-bying”.
So as long as sunspots stay at zero,
Let it snow! Let it snow! Let it snow!

Thomas J. Arnold.
December 26, 2008 5:06 am

The World is cooling, glaciers in the Alps will start to recover and I fear that Britain will have in the next two years a fearsome Winter ala 1947, I must admit at this juncture that a bit of Global Warming is not so bad!! I do not read climate models and I hope that I am wrong but I do read the signs Like the PDO and that tells me that the Northern Hemispere is cooling – the United States is feeling it now and we have saying over here that
;
“what happens over there will happen over here.”
Once again I hope that I’m wrong. In the studies I made when I studied Glaciology, always what fascinated and amazed was the fact that weather could change so rapidly and I am talking (as you are all aware) of years even months!!!

Stephen Wilde
December 26, 2008 5:53 am

The global snow cover isn’t far from average as yet:
http://moe.met.fsu.edu/snow/
That will change if the US stays cold and snowy when Russia, China and Europe catch up

Don Shaw
December 26, 2008 5:58 am

Mick
The headline on Drudge for this was Record Warmth. I agree with you, but that was the headline. Was it sarcastic?

December 26, 2008 6:05 am

OT: Nice to see the Arctice sea ice extent has started to climb again. Anyone know why it stalled there for a few weeks? Canada (where most of the arctice sea ice is) has been in a deep freeze for the since around December 12, which is when the stall happened. While snow built up all over Canada, the sea ice stoped freezing. This is very odd to me.

Novoburgo
December 26, 2008 6:06 am

Mick,
Look at the last graphic.

Editor
December 26, 2008 6:23 am

carlbrannen (23:16:29) :

The tipping point is avoided so long as the snow appears only in the winter, when we get relatively little sunlight anyway. If we had 50% of the US covered in snow in July that would be a big problem.
… It’s cold summers that causes ice ages; our albedo is lowest in the summer and so it is the distance of the earth to the sun in summer that influences norther hemisphere ice ages.

In the 1970s during the news coverage about the incipient ice age (you know, the coverage that didn’t really happen), one suggestion was that if one winter’s snowfall didn’t melt during the following summer that would be enough trigger a rapid ice age. Flying across the country the following winter I concluded that the snow would have to cover all the conifers to have any hope of surviving the summer. Conifers are dark trees – I have a lot photos on Kodachrome 64 film, a fairly contrasty slide film. Pines and spruces in settings that include other ground or sky are nearly black, a lot less than the 18-19% refectance photographers expect from an average scene.
So I got a lot less concerned about a new ice age. And I had nearly reconciled myself to getting to watch the start of a historic event. Sigh.
This decade I had nearly reconciled myself to seeing New York City become the new Venice and Orlando develop a seacoast theme park. Fortunately I was holding out for the solar minimum that was expected a couple years ago and the next PDO flip. Still waiting for an official declaration of solar minimum. Still hoping for a paralyzing snow storm in Washington DC for Inauguration Day.

JimB
December 26, 2008 6:34 am

We’re forecast for temps in the mid-60s around Boston on Sunday. That might not be “record”…but it’ll take care of what snow we have left. The rains and 50deg temps yesterday knocked off most of the 16″ I had at my house, probably down to about 4-5” now, with some bare spots on the lawn.
Very strange weather patterns.
I finally took a look at Tamino’s site yesterday. Very interesting. They seem to take all of the jokes we make about “snow” being “proof” that there’s no AGW, and claim we’re being serious about the statements…kind of funny to read. Most of the posts seemed pretty self-righteous, at least to me.
One thing I didn’t see was much scientific discussion.
Oh well.
JimB

Mike Bryant
December 26, 2008 6:55 am

I’ve read (Was it Isaac Asimov?) that the thing that starts an ice age is an increase in precipitation. Apparently the extra snow lasts longer into each summer which cools the earth until it hits the “tipping point”. So I guess that’s a reverse tipping point.
At this site:
http://www.nohrsc.noaa.gov/nsa/
You can look at the last three years and see the trend on maximum snow depth in the continental USA.
12-26-2006-418.4″
12-26-2007-597.3″
12-26-2008-719.2″
The last one is almost 60′ deep. I guess it’s somewhere in the Rockies. I wonder how much of it is compressing into ice?
If you check summer dates you can see that more snow is hanging around through the summer.
Probably means nothing but it IS interesting.

December 26, 2008 7:13 am

Karl Brennen: “It’s cold summers that causes ice ages”
December with La Nina in Lima,Peru (Now) Max.Temp:24°C, Min:18°C
December with 1998 El Nino, same place, Max.Temp.32°, Min:…
If, as it is obvious, there´s a temperature lag in the oceans ( a time for heating up and a time for cooling down) something happened a few years before or years before that 98´ El Nino, though Dr.Leif says nothing unusual happened just in 98 it would be interesting to revise figures before this event. (We know what happened after…the warming hysteria)

Basil
Editor
December 26, 2008 7:32 am

As I’m driving today from the mid-South, through Tennessee, Kentucky, and up into southern Ohio, I’m thankful that the “record warmth” that Paul is referring to will keep the roads free of ice and snow. I hope this warming continues until after the new year, when I return home.
But I’ve got my chains, just in case. 😉

Fred from Canuckistan . . .
December 26, 2008 7:42 am

That snow coverage looks very close to the ice coverage at the end of the last ice age . . . a little further south in the west, but darn close.
Is the map trying to tell us something. We are right on schedule for the next ice age as this current interglacial period is very long in the tooth.

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