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Dec 11-13 MW/Lakes/OV Snow Event? Part III


Chicago Storm

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How much of this ends up being snow is going to be a rough call. At this stage i'm leaning towards a quick power inch or two on the front end and another inch or two in the defo band. 2-4 inches for the LOT area sounds like a good jumping off point.

NAM is continuing to track ever so slowly slower with the surface low as it develops a bent-back surface low and a stronger negative tilt trough. Interesting to see if the GFS keys in on this as it is still much faster and has a weaker surface pressure gradient as a result.

I'd consider this a good thing.

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Hard to tell if it's just one run or if it keeps it up, but the 12z NAM doesn't look as strong or north as 0z/6z, it's also more active to the south.

It closes off up to 36hrs it does anyways.. See what the rest of the run shows. I think it will lose it again later in the run. We'll see anyways..

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Thank you sir.. LOL i'm basically sleeping.. no luck on the 12z sooooo I'll enjoy my inch outside, as I mentioned earlier you cannot get both, the clipper and the storm.

:BUT how can Minnesota and all the places up there get 4 now storms in a row? NOT FAIR!

You think you're bumming, imagine those snow lovers up in Grand Forks. Fargo, Bismarck, Int Falls, Duluth, Minneapolis are all way above normal, while GF is 30% below normal and going to mostly whiff on this one too.

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You think you're bumming, imagine those snow lovers up in Grand Forks. Fargo, Bismarck, Int Falls, Duluth, Minneapolis are all way above normal, while GF is 30% below normal and going to mostly whiff on this one too.

Minny is due..long due. This maybe their winter ...finally. Chicago has been spoiled for several years.

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The system will never fully close off, and as you can see, the NAM has a phased upper level system with a closed contour in the middle meaning the 500 hpa height falls are extreme...which is an indication the storm is very intense. This is deep cyclogenesis.

post-999-0-84749400-1291991125.png

"closed" usually means a cutoff upper low. This is a true cutoff and closed upper low.

http://voices.washin...-april-2009.jpg

So to answer your question, no, it won't fully close since it will remain baroclinic.

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If Detroit ever get's a snow storm of at least 15+", i'll be satisfied. Even though we had some good winters, which some of you always bring up ..07/08 09 w/e, i found nothing special about them, except we had 70 inches of snow produced by a bunch of clippers and couple of 10 inch or snowfalls. How about breaking that 24" snowfall record set back in the 1800? HUH, takes 100+years to get a decent snow storm around here? II dont consider a 6" or even 8" snowfall all that impressive..

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There is beginning to be a trend here and it is worth noting. The northern and deeper cyclone tracks are dominated by higher res models, and farther S/slightly faster solutions are dominated by lower res guidance. Why? Because lower res models can better model deep and intense cyclogenesis owing to mesoscale effects which can become prominent, especially jet circulations and frontal circulations. Keep in mind that the SREF members are dominated by 12km grid models, the NAM is 12 km, the Euro is a spectral wave model and approximately 15km...then the lower res models come including UK/CMC/NOGAPS. Remember that if the models can't develope a dominant and intense northern cyclone, a southern solution will develop. This is why those far southern tracks probably won't end up verifying.

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If Detroit ever get's a snow storm of at least 15+", i'll be satisfied. Even though we had some good winters, which some of you always bring up ..07/08 09 w/e, i found nothing special about them, except we had 70 inches of snow produced by a bunch of clippers and couple of 10 inch or snowfalls. How about breaking that 24" snowfall record set back in the 1800? HUH, takes 100+years to get a decent snow storm around here? II dont consider a 6" or even 8" snowfall all that impressive..

This is a sure fire way to get Josh/Michsnowfreak going. :popcorn:

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Thank you sir.. LOL i'm basically sleeping.. no luck on the 12z sooooo I'll enjoy my inch outside, as I mentioned earlier you cannot get both, the clipper and the storm.

:BUT how can Minnesota and all the places up there get 4 now storms in a row? NOT FAIR!

MSP is making up for 2007-2009 when it was the screw zone getting nothing as the storms paraded over Madison WI.

Besides, it gets old not being able to travel on Saturdays. This one is definitely going blizzard warned w/ the winds.

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it'll be the most interesting part of all this and it'll come thru at 3am :gun_bandana:

by the way, any chance of squall line forming with a little thunder snow???? I remember a few years back severe thunderstorm warnings issued for an arctic front...all snow. I think it was in N. IL and into IN...

Hoosier is that right or am i tripp'n again?

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What was originally prognosed to be a blizzard of epic proportions for my region looks to be pretty much a non-event now. Even the cold behind the system doesn't look all that impressive, with EC now calling for highs of 20F and lows of zero on both Tuesday and Wednesday. We saw colder temperatures in December two years ago - even last year. Complete dissapointment. The rain will wash away the 1-2" of snow we have on the ground.

Still no post from JB....

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by the way, any chance of squall line forming with a little thunder snow???? I remember a few years back severe thunderstorm warnings issued for an arctic front...all snow. I think it was in N. IL and into IN...

Hoosier is that right or am i tripp'n again?

Your read my mind, happened back in 03 or 04 in Illinois. ILX issued severe thunderstorm warnings for winds up to 65 mph.

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by the way, any chance of squall line forming with a little thunder snow???? I remember a few years back severe thunderstorm warnings issued for an arctic front...all snow. I think it was in N. IL and into IN...

Hoosier is that right or am i tripp'n again?

I remember that. I forget which winter though. May have been either 02-03 or 03-04?

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by the way, any chance of squall line forming with a little thunder snow???? I remember a few years back severe thunderstorm warnings issued for an arctic front...all snow. I think it was in N. IL and into IN...

Hoosier is that right or am i tripp'n again?

BULLETIN - EAS ACTIVATION REQUESTED

SEVERE THUNDERSTORM WARNING

NATIONAL WEATHER SERVICE LINCOLN IL

602 PM CST TUE FEB 11 2003

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

MARSHALL COUNTY IN CENTRAL ILLINOIS

* UNTIL 645 PM CST

* AT 602 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED

A SEVERE THUNDERSTORM...WITH HEAVY SNOW... OVER SPARLAND...OR

ABOUT 6 MILES NORTHWEST OF LACON...MOVING EAST AT 65 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

HENRY

LACON

VARNA

TOLUCA

WENONA

DAMAGING WINDS IN EXCESS OF 60 MPH WILL ACCOMPANY THIS DANGEROUS

STORM. GO TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A

STURDY BUILDING. ABANDON CARS AND MOBILE HOMES IF YOU ARE IN THE

WARNED AREA.

REPORT SEVERE WEATHER OR ANY STORM DAMAGE TO YOUR LOCAL ESDA...OR THE

NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER

SERVICE. STAY TUNED FOR LATER STATEMENTS.

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