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Location: Live:Downtown Phoenix, AZ/Work:Greater Los Angeles, CA
27,606 posts, read 14,604,784 times
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Quote:
Originally Posted by BullochResident
Much less than that.
Phoenix: 33 degrees 27 minutes north
Atlanta: 33 degrees 46 minutes north
1086' elevation for Phoenix
1050' elevation for the highest parts of Atlanta
I give you Rocky Mountain blockage for the mild winters, but I don't know why elevated places out west are so damn hot in the summer.
Out west, 1,000 ft isn't considered high elevation, we are considered lowland, with the exception of the coast and the California Central Valley, the only other areas lower than Phoenix are far southwestern AZ, the Imperial and Coachella Valley's of far southeastern CA, the Colorado River Valley from Laughlin/Bullhead City southward, and Death Valley.
The average elevation out west here is around 5,000ft
And we are hot as we are in summer due to less moisture in both the air and the ground, and less cloud cover. July and August see 85% possible sun here, and they are not our sunniest months (those are May and Jun, which see 95%). Also consider that Atlanta has an average dewpoint pushing 70° in July along with over 4" of rain, while our avg July dewpoint is 58° and with only 1" of rain
If the Rockies block cold from infiltrating the Western US, then that means that the extreme proneness to cold the Eastern US has in winter is simply a matter of where the jetstream dips; if the jetstream tended to dip in the West, the East would be much warmer and stable, while the West had greater cold snaps.
Location: João Pessoa,Brazil(The easternmost point of Americas)
2,540 posts, read 2,005,110 times
Reputation: 644
Quote:
Originally Posted by deneb78
Islands in the Southern Ocean are climate fails. Where else on earth do you have climates with such cold summers that trees can't even grow at less than 50 degrees latitude (Kerguelen Islands, Crozet Islands and Prince Edward Islands)
Im sure that Nothofagus species could grow well in thoses places,Port-aux-français have warmer winter and summer average than the surrounding mountains of Ushuaia,where thoses trees grow,but the Islands are so isolated that none seed can reach there.
Quote:
Originally Posted by tom77falcons
Philadelphia and all the Mid-Atlantic. Winters are the coldest on the planet for the latitude, bar East Asia. But at least in Asia they have stability in winter, and it seems much more stable spring warm up. I remember seeing a news story out of Beijing in early April and it seemed their trees were almost fully leafed out. I think we have the worst spring weather given the latitude.
Philly has an avg high of 40F in Jan, and an avg high of 63F in April. Beijing has an avg high of 35F in January, and an avg high of 69F in April.
I'll bet almost every day in Beijing in January is close to 35F and clear, while over here it is 30F one day and 50F a few days later.
Another statistic is our record low for April is 14F, while in Beijing it is 26F. How telling is that?
China is really more stable,even more than the Korean Peninsula,if you compare Pyongyang with Beijing you will see,and them really have an more stable spring.
But still they are colder in winter than North America,even its unstable nature cant win of the powerful Siberian anticiclone.
[quote=tom77falcons;45105649]Yeah, the inland South (eastern 2/3 of US) is a major climate rip off imo. Way too hot in summer, and then way too cold in winter given the latitude and elevation.
Seriously, this looks like the burbs of Philly in the depths of winter lol.
I think only Eastern Asia looks more dead in winter than Northeastern North America at that Latitude(40N) and sea level.
Last edited by ghost-likin; 08-12-2016 at 07:27 PM..
Location: Live:Downtown Phoenix, AZ/Work:Greater Los Angeles, CA
27,606 posts, read 14,604,784 times
Reputation: 9169
Quote:
Originally Posted by VIRAL
If the Rockies block cold from infiltrating the Western US, then that means that the extreme proneness to cold the Eastern US has in winter is simply a matter of where the jetstream dips; if the jetstream tended to dip in the West, the East would be much warmer and stable, while the West had greater cold snaps.
No it wouldn't, because the Rockies even at their northern end are west of the Arctic, they curve west and become the Brooks Range in Alaska. So the west's only source of cold Air is the Gulf of Alaska, a part of the Pacific Ocean which is much warmer than the frozen Arctic Ocean or Hudson Bay. Just look at Juneau or Anchorage compared to coastal locations at the same latitude in Canada, big difference
If the Rockies block cold from infiltrating the Western US, then that means that the extreme proneness to cold the Eastern US has in winter is simply a matter of where the jetstream dips; if the jetstream tended to dip in the West, the East would be much warmer and stable, while the West had greater cold snaps.
But it doesn't. This is the typical patter in winter. And some scientists claim the Rocky Mountains actually cause the dip of the Jetstream in the East.
No it wouldn't, because the Rockies even at their northern end are west of the Arctic, they curve west and become the Brooks Range in Alaska. So the west's only source of cold Air is the Gulf of Alaska, a part of the Pacific Ocean which is much warmer than the frozen Arctic Ocean or Hudson Bay. Just look at Juneau or Anchorage compared to coastal locations at the same latitude in Canada, big difference
You never know where the jetstream will hook itself to. If it hooks itself in just the right manner, the West gets cold, and the East is under the ridge.
Quote:
Originally Posted by tom77falcons
But it doesn't. This is the typical patter in winter. And some scientists claim the Rocky Mountains actually cause the dip of the Jetstream in the East.
That's just one simple position. It may be the typical trend as of time of observation, but it can also be typical to dip over the West, then rise East. You never know.
Location: Live:Downtown Phoenix, AZ/Work:Greater Los Angeles, CA
27,606 posts, read 14,604,784 times
Reputation: 9169
Quote:
Originally Posted by VIRAL
You never know where the jetstream will hook itself to. If it hooks itself in just the right manner, the West gets cold, and the East is under the ridge.
That's just one simple position. It may be the typical trend as of time of observation, but it can also be typical to dip over the West, then rise East. You never know.
We do get troughs during the winter, but again they come out of the Gulf of Alaska rather than the Arctic Ocean.
Cold air is heavier than warm air, so it tends to hang within a few thousand feet of sea level, it sinks. And a cold air mass can not cross a 14,000 ft mountain range because of this. So I repeat, the wests cold air is from the more moderate Gulf of Alaska/North Pacific, which is why our negative deviations aren't as high as the eastern 2/3rds of the country, our cold air source is warmer than the easts.
You never know where the jetstream will hook itself to. If it hooks itself in just the right manner, the West gets cold, and the East is under the ridge.
That's just one simple position. It may be the typical trend as of time of observation, but it can also be typical to dip over the West, then rise East. You never know.
Would you please pay attention, and stop trying to deflect what we know. Why is Seattle far warmer than Boston in winter?
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