Spring 2016 thread (Northern Hemisphere) (warmest, recorded, temperatures, Chicago)
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1. Where did I mention Southern NJ?
2. You know I live in this region, not the PNW.
3. Constant warmth bores the living daylights out of me. I could care less about it but I did mention the hot 80s in southern Indiana yesterday so go figure.
4. I don't get paid to post or look at weather stuff
5. I ignore Florida and Western U.S the most due to #2, #3, & #4 ..
6. You ignore all snow falling in Philly and that's where you live.
The Pacific Northwest has been having record or near record warmth so it's the noteworthy; but as you said you don't get paid to post. You don't ignore the western US when there's snow there...
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I think what's more surprising is that there isn't much difference between here and there.
How can here and 20 miles south of me have a big difference but here and 95 miles north of me be about the same? Valley & Coast similarities?
I'm wondering if some of the difference is from tree species. Heat Island + Coast was enough to stave more freezes? Or start budding earlier so though the early April freezes couldn't have as much effect. I noticed it was greener right near the Connecticut River
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Current Temps. Only 41° here. No frost. But 30s minutes north of me. Eastern Long Island stayed a bit warmer then forecast.
Was in the low 30s this morning here. But at 7 am, didn't see any frost. Maybe I was in a somewhat warmer spot locally?
You don't ignore the western US when there's snow there...
See #3 please then re-read #4. Thanks.. Cold & Snow interest me more. I'm already on this forum enough so take what you can get. We have Tom to talk about the Western heat. lol I'll stick to the heat in our region when it happens just to keep my sanity.
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Originally Posted by nei
I'm wondering if some of the difference is from tree species. Heat Island + Coast was enough to stave more freezes? Or start budding earlier so though the early April freezes couldn't have as much effect. I noticed it was greener right near the Connecticut River
There are pockets for sure and I wonder if that's because of the micro climates or the tree species. We do have a lot of Oaks around here and so it looks more bare in more areas, how about there? Do you have a lot of Oaks?
There are pockets for sure and I wonder if that's because of the micro climates or the tree species. We do have a lot of Oaks around here and so it looks more bare in more areas, how about there? Do you have a lot of Oaks?
Some but they're nowhere as common as further south. My parent's backyard on Long Island is mostly oaks, removes most of the spring leafout time differenc
850mb Temps and 500mb Height animation since April 1st every 12hrs.
Hard to focus on 1 area but the most interesting thing aside from the cold Arctic air digging into the Northeast is the Omega Block setup and how it came about.
Watch the Cut Off low come from the Pacific, it comes across the U.S then gets absorbed into a building ridge in Eastern U.S. At the same time a trough digs down the Atlantic Ocean and an Upper Low forms in the Atlantic all while an Upper Low also drops down Western U.S and hovers over Colorado. The "pattern" gets stuck for a few days. Pretty cool to see the evolution of that.
Also notice the warmest 850mb temps stays West of the Mississippi and never surges up in the East. However +10-15C is warm enough this time of year to provide 80s up to Michigan!
Not really sure what the appearance and disappearance of the +20C temps at that level is about. I assume it's a Night vs Day thing with each frame?
This animation also shows how Mexico being a landmass helps surge warmer air aloft northward as opposed to the Gulf of Mexico. Although it may just be the pattern for now because I have seen +20C over the gulf and surge north into the East.
1. Where did I mention Southern NJ?
2. You know I live in this region, not the PNW.
3. Constant warmth bores the living daylights out of me. I could care less about it but I did mention the hot 80s in southern Indiana yesterday so go figure.
4. I don't get paid to post or look at weather stuff
5. I ignore Florida and Western U.S the most due to #2, #3, & #4 ..
6. You ignore all snow falling in Philly and that's where you live.
Oh yeah, I travel that area a lot and I see it. It's pretty fascinating. And same when it snows, there could 3" in Greenwich and barely anything just over the border. I swear it's like an invisible wall is there blocking things.
I think what's more surprising is that there isn't much difference between here and there.
How can here and 20 miles south of me have a big difference but here and 95 miles north of me be about the same? Valley & Coast similarities?
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Current Temps. Only 41° here. No frost. But 30s minutes north of me. Eastern Long Island stayed a bit warmer then forecast.
Oh, and check out the Heat island of Philly & NYC. Looks like some 30s surrounds them even to the NJ coast.
Clouds keeping Pittsburgh warm.
It is also interesting that West Chester way out from a Philly UHI had a low of 45F, while Northeast Philly airport, actually in the city, had a low of 43F. Malvern is further from the city than Wings Field and had a low of 41F. Eagleville further outside the city than Wings, but close to there went down to 42F. Phoenixville far out west down to 41F. Chester County Airport low of 45F, Oxford, PA and Octararo Lake, PA went down to 42F. But then Coastesville town dropped to 37F. Glenmoore, PA down to 40F. Most of these locales all warmer than southern NJ.
I think this desert like very dry weather we have been having has dried all the soils out. Night time cooling is rapid and sharp with such dry soil. So, you see odd lows all over the place right next to a place that didn't drop near as far. Yes, the urban UHI kept Philly the warmest, but just looking at Wings Field is not accurate imo.
Normally Philly isn't that dramatically warmer than the 37F at Wings Field. Philly airport no way averages 10F warmer on night time lows. Norristown PA 1981-2010 averages 39/22F for Jan vs 40.6/25.6F at Philly airport. Phoenixville, PA further out than Wings averages 41/22F in Jan. West Chester, PA averages 39.5/20.1F in Jan. Coatesville, PA averages 38/21F in January. Octoraro Lake, PA way outside and well west of Philly averages 39.8/20.6F for January.
Number one, Philly airport sits right on the Del River. And the soil is so dry right now that everywhere is having a lot of radiational cooling, but much more limited in an environment without a lot of soil like an urban area. Even without Philly present, like before European settlement, I am quite sure the Del River valley where Philly sits was warmer than the outlying suburbs. Those areas are higher in elevation, and away from the warming influence of the very large estuary just south of Philadelphia and the river valley.
Look at the map below and then look at the temps and averages I posted. Not everything is always the result of a UHI.
For some reason I notice Binghamton is colder during the day but much warmer at night than Ithaca. I wonder how that happens, Ithaca is lokated right next to a lake so you think it would be the other way around
For some reason I notice Binghamton is colder during the day but much warmer at night than Ithaca. I wonder how that happens, Ithaca is lokated right next to a lake so you think it would be the other way around
Speaking of Warm and Cold within 12hr periods. I kinda learned something new today or just remembered something I had forgotten.
I posted this animation of the temps at the mid levels (850mb). Was funny seeing that level fluctuate like that from +20C down to +10C back up to +20C in 12hr periods in the SW.
It's a reminder that mountain terrain effects the temps at that level where as in the East and elsewhere without tall mountains is just air so there's no fluctuations.
I checked to make sure there's no map error on my end. Nope.
So I checked the soundings for Albuquerque, NM which sits at 5300'. Interesting.
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