Northern Hemisphere Cold 2009/10

[rocketsci]

I was going to post this in the S. Hemisphere thread, but...

We have reports of Minnesota running 30 days ahead of schedule, temperature-wise.

Here in lovely, lovely San Diego, I've observed that the average high temperature for August was ~10F lower than usual. At multiple locations in Southern California. As noted above, this is about 30-60 days ahead of schedule. Oh, and September is following the same trend.

Any observations from elsewhere in the N. Hemisphere?

Me? I'm checking my ski gear. Should be great this winter!

[vauss]

Rocket,

September is starting off cool here in Valdez Alaska. Or I should say, a continuation of the cool weather we have had for most of the summer. I'm getting my snow tires put on as early as possible, which will be september 15th. I'm heading to Anchorage in early October and I don't want to get stuck in snow on the way.

Vauss

Sept 6, 2008 7:16:28 GMT rocketsci said:

I was going to post this in the S. Hemisphere thread, but...

We have reports of Minnesota running 30 days ahead of schedule, temperature-wise.

Here in lovely, lovely San Diego, I've observed that the average high temperature for August was ~10F lower than usual. At multiple locations in Southern California. As noted above, this is about 30-60 days ahead of schedule. Oh, and September is following the same trend.

Any observations from elsewhere in the N. Hemisphere?

Me? I'm checking my ski gear. Should be great this winter!

[Belushi TD]

Same here, Vauss.

Fortunately, my uncle owns a service station, so I can get in ahead of the crowds. (Well, not AHEAD of the crowds, but when I show up, they'll put my car on the lift.)

Belushi TD

[vauss]

Rocket,

update from Alaska. According to the Sunday, Sept. 7 2008 Anchorage Daily News, this is the summer with the 3rd lowest high temps on record. Only the summers of 1971 and 1973 were cooler. National Weather Service in Alaska is quoted as saying "An astonishing 77 percent" of days were colder than normal.

Vauss

Sept 6, 2008 7:16:28 GMT rocketsci said:

I was going to post this in the S. Hemisphere thread, but...

We have reports of Minnesota running 30 days ahead of schedule, temperature-wise.

Here in lovely, lovely San Diego, I've observed that the average high temperature for August was ~10F lower than usual. At multiple locations in Southern California. As noted above, this is about 30-60 days ahead of schedule. Oh, and September is following the same trend.

Any observations from elsewhere in the N. Hemisphere?

Me? I'm checking my ski gear. Should be great this winter!

[anse]

Hi there,

New to this message board.

Here in Sweden August was cooler than normal in a lot of the northern and middle parts and slightly above in the very south.

Already the 1st of August it was considered autumn in the very northern parts and one week later it had taken a big part of northern Sweden. It´s considered autumn here when the 24h average temperatures for one part are below 10C for a period of at least 5 consecutive days. On the night to the 31st, one of the northernmost stations reported -5.6C, the coolest August temperature in the country since 1995.

[twawki]

They try and downplay the cold weather in England - but theres no escaping it - after all it was ONLY the 96th warmest on record out of 350 years

ROFL

www.timesonline.co.uk/tol/news/weather/article4699185.ece

"One feature does stand out. August was the gloomiest since sunshine records were first collated in 1929. Day after day the Sun was blotted out by thick, grey blankets of stratocumulus or billowing cumulus clouds. Only 105 hours of sunshine broke through, two thirds of normal."

[rocketsci]

Absolutely hysterical. 96th...

I found it interesting that even with the effect of the Gulf Stream current, there was still a noticeable and significant effect.

One thing I was wondering, and perhaps the denizens of this fine board can answer, is whether the weather in the southern hemisphere has a significant impact on weather (and temperatures) in the North? or do global atmospheric circulation patterns mostly isolate them, leaving them subject only to common external influences (e.g. T.S.I., cosmic radiation, etc.)?

Just wondering.

Thanks for the feedback! Its fascinating to see that what I initially saw as locally observed seasonal temperature anomalies are not, in fact, local.

Sept 8, 2008 6:08:00 GMT twawki said:

They try and downplay the cold weather in England - but theres no escaping it - after all it was ONLY the 96th warmest on record out of 350 years

ROFL

www.timesonline.co.uk/tol/news/weather/article4699185.ece

"One feature does stand out. August was the gloomiest since sunshine records were first collated in 1929. Day after day the Sun was blotted out by thick, grey blankets of stratocumulus or billowing cumulus clouds. Only 105 hours of sunshine broke through, two thirds of normal."

[kelken]

Summer has been one of Alaska's coldest
High temperatures this season were 3rd lowest on record

By CRAIG MEDRED
[e-mail]

Published: September 7th, 2008 12:04 AM
Last Modified: September 7th, 2008 02:50 AM

Summer is officially over in Alaska, and if you got out in the sun to enjoy both days of it you were lucky.

Those were the two July days the temperature at the offices of the National Weather Service in Anchorage hit 70 degrees or better.

"Those temperatures occurred at the beginning of the month (of July) and were immediately followed by a long stretch of cool and wet weather.

"With only two days above 70 degrees this year, that sets a new record for the fewest days to reach 70,'' the weather-watching agency reported Friday.

Add to the lack of heat and sunshine what the agency calls "an astonishing 77%" of days colder than normal, and you get the picture.

This summer was every bit as bad as you thought it was.

Gardens didn't grow. Salmon returned late. Bees didn't make honey. Swallows didn't breed.

And the sunbathing, well, what sunbathing?

On average, Anchorage sees 16 days that hit 70 or better.

Not this year. Not since 1980 has there been a summer less reflective of global warming than this one. Consider these 2008 benchmarks from the weather service that say this month won't be any better:

Over the course of the past 87 years, September temperatures have reached 70 only 17 times, and two of those 70-degree days came in the same year, according to the weather service.

On average, a 70-degree September day comes along about once every five years, but those days also tend to come in warm years, not years like this one.

Overall, the weather service ranks the summer of 2008 as having the third coolest average high temperatures since record keeping began. Only the summers of 1973 and 1971 were worse. In overall average daily temperatures, 2008 ranked 11th place.

CLOUDS ARE GOOD?

All that stopped this summer from winning a place as coldest ever was, strangely enough, its cloudy grimness.

"What seemed like endless days of cloud cover kept the daytime highs averaging 3 degrees below normal," according to the weather service. "Inversely, the cloud cover helped to keep overnight temperatures up.

"The minimum temperatures in the summer of 2008 only ranked as the 34th coolest on record."

Now, there's something to cheer about. That and the fact that, though the summer left the birds and the bees struggling, the mosquitoes seemed to be doing just fine.

So what can you expect from here on out?

"September climatologically opens with high temperatures around 60 and overnight lows in the middle 40s,'' says the local office of the weather service. Followed by October, when temperatures start to really drop, to the 20s and 30s by the end of the month.

That is the normal pattern.

This year?

The National Climate Prediction center is calling for "below normal temperatures along southern Alaska (through September)." Warm waters flowing north into the Gulf of Alaska mean Southcentral Alaska could be back to "normal" -- if there is such a thing -- by October or November.

That would be just in time for the snow-sport season that lasts about twice as long as summer.

Meanwhile, in case you forgot, the days are getting shorter, too.

[tacoman25]

September is running up to 10 degrees (F) below normal so far over many parts of the northern U.S. Rockies. Here along the Front Range of Colorado, we are running about 3-5 degrees below normal. Today will drop that further, as temperatures are struggling in the 50s. Normal high for this time of year is about 80.

[twawki]

Quote

One thing I was wondering, and perhaps the denizens of this fine board can answer, is whether the weather in the southern hemisphere has a significant impact on weather (and temperatures) in the North? or do global atmospheric circulation patterns mostly isolate them, leaving them subject only to common external influences (e.g. T.S.I., cosmic radiation, etc.)?

Quote

Yeah Ive wondered the same, heard they are reasonably isolated in terms of wind currents (ash etc from volcanoes seems to stay in the hemisphere it erupted in) but then ocean currents transverse both hemispheres and they drive climate/weather, also the sun would impact both hemispheres pretty much the same/opposite I would have thought. Then most continents are drifting north are they not. So in some ways were interelated in other ways not.

Any other thoughts?

[twawki]

Cooling temperatures are going to wreak havoc on agriculture for the remainder of the growing season with the threat of an early frost greater than in years past, according to the latest research from Storm Exchange.

Storm Exchange, Inc., a weather-risk management service based in New York, said in their Fall 2008 Weather Risk Outlook that in a 90-day projection based on a combination of atmospheric climate trends, advanced computer-driven seasonal prediction models and analog forecasts, this fall presents a classic weather hedging scenario.

“For the season ahead, we see agriculture still struggling to gain traction with an increased risk of frost threatening an already unstable corn crop while that same cool weather pattern is going to drive consumers into the mall for seasonal apparel," Paul Walsh, Storm Exchange Chief Strategy Officer, said in a press release. "This cooling trend will be set against the backdrop of a very active hurricane season that will continue to drive price volatility in the energy sector.”

www.agweb.com/get_article.aspx?pageid=145454

[twawki]

US to give world more nuts than Iran

www.theaustralian.news.com.au/story/0,25197,24320156-12377,00.html

and its all because of the cold

[socold]

NCDC temperature monthly anomalies for Northern Hemisphere:

January 2008: +0.10°C
February 2008: +0.43°C
March 2008: +1.03°C
April 2008: +0.51°C
May 2008: +0.53°C
June 2008: +0.59°C
July 2008: +0.55°C

Brrr that's cold

[tacoman25]

Sept 9, 2008 12:42:02 GMT socold said:

NCDC temperature monthly anomalies for Northern Hemisphere:

January 2008: +0.10°C
February 2008: +0.43°C
March 2008: +1.03°C
April 2008: +0.51°C
May 2008: +0.53°C
June 2008: +0.59°C
July 2008: +0.55°C

Brrr that's cold

The satellite temperatures show anomalies much lower than that. Either way, it's significantly cooler than other recent years.

[rocketsci]

socold -

I checked the NCDC web site, and I had some difficulty finding datasets for the NH/SH that extend through August 08. Do you happen to have a link?

Thanks!

Sept 9, 2008 12:42:02 GMT socold said:

NCDC temperature monthly anomalies for Northern Hemisphere:

January 2008: +0.10°C
February 2008: +0.43°C
March 2008: +1.03°C
April 2008: +0.51°C
May 2008: +0.53°C
June 2008: +0.59°C
July 2008: +0.55°C

Brrr that's cold