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Dec 11-13 MW/Lakes/OV snow event part 4


Hoosier

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1.5 unofficial measurement here and I'm north metro. Direct hit for the downtowns. What a mess that'll be for a week...

I'm just glad I don't have plans tomorrow. If I did, I'd probably cancel them. I'm in a protected area, but we're probably sitting at 3" or more in Chaska. Think I'll be calling it a night soon and see what daylight brings.

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finally home, was with a lady friend since 5 30 and got to glance at the 0z NAM/GFS but that was it so I was kinda going through withdrawl and now catching up on things. also a good win for the bulls. tomorrow will def be interesting to watch and I might even stay up to see the new AFD's

also watched skilling, don't agree with his high totals....yet. but if things keep trending south we'll see.

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MESOSCALE DISCUSSION 2119

NWS STORM PREDICTION CENTER NORMAN OK

0147 AM CST SAT DEC 11 2010

AREAS AFFECTED...ERN SD...SRN MN AND WRN WI

CONCERNING...HEAVY SNOW

VALID 110747Z - 111345Z

BANDS OF SNOW ARE EXPECTED TO INCREASE THROUGH THE EARLY MORNING

FROM ERN SD...SRN MN INTO WRN WI WITH RATES LOCALLY FROM 1 TO 1.5

INCHES PER HOUR LIKELY AND UP TO 2 INCHES PER HOUR POSSIBLE.

THIS MORNING A STATIONARY FRONT EXTENDS FROM SURFACE LOW OVER NWRN

IA SEWD INTO CNTRL IL WITH A COLD FRONT STRETCHING SWWD FROM THE LOW

THROUGH ERN NEB INTO CNTRL KS. PROGRESSIVE VORT MAX OVER ERN NEB

WILL BE ACCOMPANIED BY STRONG FRONTOGENETIC FORCING ALONG E-W

BAROCLINIC ZONE LOCATED OVER THE UPPER MS VALLEY. VERTICAL

TEMPERATURE PROFILES ARE WELL BELOW ZERO...AND THIS ZONE OF DEEP

ASCENT WILL RESULT IN A GRADUAL INCREASE IN AREAL COVERAGE AND

INTENSITY OF SNOW. PRECIPITATION WILL BECOME ORGANIZED AS BANDS

WITHIN THE E-W FRONTOGENETIC ZONE FROM ERN SD...SRN MN INTO WRN WI.

SNOWFALL RATES WILL LIKELY INCREASE TO 1-1.5 INCHES PER HOUR WITHIN

THE HEAVIEST BANDS. SOME DEEPENING OF THE SURFACE LOW MAY OCCUR AS

IT MIGRATES EWD THROUGH NRN IA. A TIGHTENING GRADIENT BETWEEN THE

LOW AND SWD ADVANCING ARCTIC HIGH WILL CONTRIBUTE TO WINDS

STRENGTHENING TO 40-50 KT IN THE SFC-850 MB LAYER...INDICATING SOME

LOCATIONS FROM ERN SD INTO SWRN MN MAY EXPERIENCE BLIZZARD LIKE

CONDITIONS LATER THIS MORNING.

post-252-0-39151700-1292054385.gif

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finally home, was with a lady friend since 5 30 and got to glance at the 0z NAM/GFS but that was it so I was kinda going through withdrawl and now catching up on things. also a good win for the bulls. tomorrow will def be interesting to watch and I might even stay up to see the new AFD's

also watched skilling, don't agree with his high totals....yet. but if things keep trending south we'll see.

Looks like another event where there's going to be a big gradient somewhere around southern WI/northern IL. Model trends have been slightly slower/south on recent runs.

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I know it's been said but man, the trowal on this thing is amazing.

As it stands right now, I would think the NAM might be on to something with the QPF. Because it is pretty certain this will have a great trowal, and models tend to underdo the qpf from trowals. Someone in MI might walk away with near a foot maybe more.

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