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932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!

 
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932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
Saturday, February 9, 2013Pattern Overview From February 9 to February 23
By Andrew at 2:02 PM
This is a discussion of the atmospheric pattern from February 9th through February 23rd.

Our analysis begins with the tropical convection index called the Madden-Julian Oscillation, or MJO. We currently see the MJO in Phase 1, with the strongest tropical convection occurring in west Africa or into the Indian Ocean.

When the Madden Julian Oscillation is in Phase 1 during the second half of winter into March, cooler temperatures tend to prevail across many areas east of the Front Range, especially prevalent in the Great Lakes and into the Northeast. Temperature anomalies can average a few degrees below normal, and this phase is best known for providing the aforementioned regions with the best opportunities for cold outbreaks. We are not seeing that cold trend get too strong at this time, however, because the MJO is very close to the center circle. When the MJO tracks into that center circle, it means convection is too weak for any adverse weather to be inflicted on the nation. In coming days, we will see the MJO rebound back into a modest-strength Phase 1, but then swing around into Phase 2, as the ECMWF model illustrates above. If we look again at the charts on the left, we find temperatures bounce back to relatively normal (but still cool) levels for those east of the Mississippi. A striking difference is the sudden appearance of well below normal temperature anomalies in the Rockies. It is plausible that we could see these below normal temperature anomalies appear as we progress into the next several days. Precipitation wise, while Phase 1 does favor coastal storms as exhibited by above normal anomalies in the Southeast, this wet sector shifts more inland into the southern Ohio Valley during Phase 2. This tells me that we could see storms stay more inland and affect the Ohio Valley more-so than the Northeast. That's not to say coastal storms will be rid of the equation, but they will begin to find a discouragement for such a coastal track. Before long, we are entering a modest Phase 3. This is the last favorable phase before the cold anomalies leave. Phase 3 holds the cold across much of the nation, and precipitation continues to move more inland, now more towards the southern Plains and even into the southern Midwest.

Medium range forecasts for 500 millibar heights by the European model (left) and American model (right) show general agreement in the setting-up of low pressure anomalies across the East US, and high pressure anomalies across the West US. This is a textbook example of a good scenario where to get cold and storms to flow into the East. Depression of heights in the East leads to a suppressed jet stream, which allows cold to flourish in the region. The suppressed jet stream strengthens the subtropical jet stream and provides additional opportunities for coastal storms. Long range forecasts do show this example of storms dropping south from the Pacific Northwest as the two jet streams merge and the storm then heads up the coast. A lack of high pressure over Greenland is a major catch that could put a flaw in this system. Without the high pressure over Greenland, I am hesitant to believe that this scenario will lead to big Nor'easters. While they are indeed possible, the lack of Greenland high pressure could lead to these storms just going out to sea rather than hanging around on the East Coast. This situation will have to be carefully watched before any decisions are made about who gets the storms and who is left out.

A long range concern of mine is the development of an Omega Block in the Bering Sea. An Omega Block is where high pressure sets up in any given area. In response to elevated pressure anomalies, below normal pressure anomalies (low pressure) must set up on both the left and right sides of the original high pressure system, forming the Greek letter Omega. The last time we saw an Omega Block in the Bering Sea, an unfavorable pattern evolved in much of the nation. If this Omega Block is to develop, low pressure on one side of that high pressure could stretch down into the northeast Pacific Ocean and West Coast. Long range model guidance has been hinting at such a scenario, and if it were to evolve, high pressure would make a solid (and likely successful) attempt at establishing itself over much of the nation. The MJO cycling towards Phases 4-5 doesn't help either, as Phase 4 introduces warm temperature anomalies across much of the nation. If this Omega Block were to happen, and the low pressure did develop in the NE Pacific and West Coast, it would probably occur beyond the 20th of February. During this timeframe, the Madden Julian Oscillation would most likely be in Phase 4, which aligns nicely with the Omega Block's attempt at hoisting high pressure and warm temperatures over the nation.

Weekly Prognosis:

February 9 - February 16: Threat for coastal storms remains through the week. Valentine's Day likely to bring Nor'easter. Accumulations flirting with one foot in spots. Warm temperatures and high pressure prevails in West US until end of week.

February 16 - February 23: Persistent low pressure moves out of East US. Pacific pattern begins to turn unfavorable, Madden Julian Oscillation begins cycling through Phases 3 and 4. Cold temperatures early in week are erased by gradual warm up into end of week. Coastal storm threat remains, may be suppressed from unfavorable Pacific pattern.

Andrew [link to theweathercentre.blogspot.de]
Anonymous Coward (OP)
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02/10/2013 11:36 AM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
The GFS is showing a Succession of east coast storms starting next Thursday [link to weather.unisys.com] That shows 4 more storms to impact the NE in the next 10 days..
Thats alot...
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
The Weather Channel‏@weatherchannel

I-29 is now closed from Watertown, SD to the North Dakota state line, also due to Winter Storm #Orko.
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
AccuWeather.com‏@breakingweather

A 150-mile stretch of I-90 remains closed through central South Dakota due to blizzard.
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
New Blizzard Roards into Plains/Midwest

Posted by: Shaun Tanner, 04:46 PM GMT em 10 de Fevereiro de 2013
As the Northeast is digging out from the record-setting snow storm, yet another blizzard is making its way through the middle of the country. We have set up a Winter storm page you can use to track the progress of this storm. [link to www.wunderground.com] [link to www.wunderground.com]
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
The Weather Channel‏@weatherchannel

Heavy snow & heavy sleet in the Twin Cities... severe storms in Louisiana... check the driving difficulty index: [link to wxch.nl]
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02/10/2013 11:52 AM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
hf Thank's a lot!!!
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02/10/2013 11:55 AM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
bump
Ignorance is bliss until reality bites you in the ass.

I take care of the dead...always.
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02/10/2013 12:00 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
hf Thank's a lot!!!
 Quoting: Luisport


You are Welcome!

hf
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02/10/2013 12:03 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
hf Thank's a lot!!!
 Quoting: Luisport


You are Welcome!

hf
 Quoting: CowgirlK


Trere are real good friends here!!! Thank you all from deep of my heart!!!hearts
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02/10/2013 12:16 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
hf Thank's a lot!!!
 Quoting: Luisport


You are Welcome!

hf
 Quoting: CowgirlK


Trere are real good friends here!!! Thank you all from deep of my heart!!!hearts
 Quoting: Luisport



We all love you Luis!!! You go out of your way to try to keep us all safe. We can't thank you enough, but we can keep trying. THANK YOU!!!
RoxykinsIII
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
brrr! thanks, Luisport!
"I would rather take a political risk in pursuit of peace, than risk peace in pursuit of politics." - Donald Trump
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02/10/2013 12:17 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
hf Thank's a lot!!!
 Quoting: Luisport


You are Welcome!

hf
 Quoting: CowgirlK


Trere are real good friends here!!! Thank you all from deep of my heart!!!hearts
 Quoting: Luisport



We all love you Luis!!! You go out of your way to try to keep us all safe. We can't thank you enough, but we can keep trying. THANK YOU!!!
 Quoting: RoxykinsIII


No no one nead to thank me because i feal it's my duty!hf
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02/10/2013 12:22 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
[link to weather.unisys.com] [link to weather.unisys.com]
Anonymous Coward
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02/10/2013 12:23 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
The GFS is showing a Succession of east coast storms starting next Thursday [link to weather.unisys.com] That shows 4 more storms to impact the NE in the next 10 days..
Thats alot...
 Quoting: Luisport


I hope we are talking snow? Lots of snow? hiding
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02/10/2013 12:27 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
The GFS is showing a Succession of east coast storms starting next Thursday [link to weather.unisys.com] That shows 4 more storms to impact the NE in the next 10 days..
Thats alot...
 Quoting: Luisport


I hope we are talking snow? Lots of snow? hiding
 Quoting: Anonymous Coward 1371470


Four replays of nemo storm...
Anonymous Coward (OP)
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02/10/2013 12:28 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
The GFS is showing a Succession of east coast storms starting next Thursday [link to weather.unisys.com] That shows 4 more storms to impact the NE in the next 10 days..
Thats alot...
 Quoting: Luisport


I hope we are talking snow? Lots of snow? hiding
 Quoting: Anonymous Coward 1371470


Four replays of nemo storm...
 Quoting: Luisport


the worst it's the last one starting sunday... i think.
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
NWS Boston‏@NWSBoston

Check out this impressive visible satellite image from yesterdays storm: [link to 1.usa.gov] . #MAwx #NHwx #RIwx #CTwx
geminilion

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02/10/2013 12:29 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
:aint:
..."The soul is dyed the color of its thoughts. Think only on those things that are in line with your principles and can bear the light of day. The content of your character is your choice. Day by day, what you choose, what you think, and what you do is who you become. Your integrity is your destiny ... it is the light that guides your way."
Heraclitus
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
AccuWeather.com‏@breakingweather

AccuWeather Meteorologists just discussed the potential for 3-6" of snow to fall in western Oklahoma and northern Texas.
abeliever
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02/10/2013 12:49 PM

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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
Thanks Luis!

Appreciative of all your efforts and warnings!

hf



bump
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
Thanks Luis!

Appreciative of all your efforts and warnings!

hf



bump
 Quoting: abeliever


hf Thank's you are great!!!
Anonymous Coward
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02/10/2013 12:50 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
Yep doesn't it always seem like you get the worst weather around February and March?

Down here we haven't had any winter and on the CBS evening news last yr, i recall Scott Pelley saying on the broadcast one night that weather forecasters had predicted that the east coast would see colder than normal temps this winter. Not what I have seen.
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
Jim Cantore‏@JimCantore

RT @t_christner Heavy snow falling in the Southern Metro of Twin Cities #Orko [link to twitter.com] It sure is! [link to www.intellicast.com] … #MNwx
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
Yep doesn't it always seem like you get the worst weather around February and March?

Down here we haven't had any winter and on the CBS evening news last yr, i recall Scott Pelley saying on the broadcast one night that weather forecasters had predicted that the east coast would see colder than normal temps this winter. Not what I have seen.
 Quoting: Anonymous Coward 4361010


but it's comming next week
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
Yep doesn't it always seem like you get the worst weather around February and March?

Down here we haven't had any winter and on the CBS evening news last yr, i recall Scott Pelley saying on the broadcast one night that weather forecasters had predicted that the east coast would see colder than normal temps this winter. Not what I have seen.
 Quoting: Anonymous Coward 4361010


but it's comming next week
 Quoting: Luisport


Well, honey, right now we're in the mid 50's down East. No kidding!
pmb1

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02/10/2013 01:01 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
As I recall I told people yesterday that because there was thunder with the snow storm that over the next week or 2 there would be more big storms. Once again proving that the old fashioned ways of the Indians still goes. Always remember that, when you get thunder snow, usually within a week or so you will get another big storm. Sort of like Halo's around the moon tell us that a storm is coming soon.
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02/10/2013 01:05 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
As I recall I told people yesterday that because there was thunder with the snow storm that over the next week or 2 there would be more big storms. Once again proving that the old fashioned ways of the Indians still goes. Always remember that, when you get thunder snow, usually within a week or so you will get another big storm. Sort of like Halo's around the moon tell us that a storm is coming soon.
 Quoting: pmb1


yes those kind of signs still work!
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
I for one at least hope it is an active storm pattern in the midwest instead so we can stay on top of the drought situation and not end up like last year. We're doing well so far and I'd like to keep it that way. Storms may be rough, but are the ever so needed
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
WINTER WEATHER UPDATE Winter Storm Orko [link to i.imgur.com] [link to i.imgur.com]
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02/10/2013 01:18 PM
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Re: 932 mb Extratropical Monster Storm to Northeast !!! GFS 12z bombs out coastal low.1000 mb to 956 mb in 24hrs getting historical territory!!!
AccuWeather.com‏@breakingweather

Another blizzard slams the northern plains to close out the weekend. [link to ow.ly]





GLP