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Feb. 19th-22nd Winter Storm Part 2


wisconsinwx

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Hmm, apparently areas north of I-96 and east of I-75 have no mixing issues on the 06z GFS. That area doesn't include metro airport of course, which explains hte brief period of freezing rain.

(precip type in aforementioned areas were all snow before/after these frames)

45hr precipitaiton types...

http://coolwx.com/cgi-bin/getptype.cgi?region=us&model=gfs&run=06&fhr=16&field=ptype

48hr precipitation types...

http://coolwx.com/cgi-bin/getptype.cgi?region=us&model=gfs&run=06&fhr=17&field=ptype

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yep..gota love living in natural screw zone. But hey Thundersleet could be possible.

lol thats just the problem, we really dont live in a screwzone, and in fact are overdue to be screwed. Some get so hung up on the fact that we havent had the epic snowstorm here in ages, that they forget that in the grand scheme of weather, we really have not been getting screwed rather getting lucky the past several winters. This is especially true for me SE of Detroit. Climo dictates that this area should see less snow than Detroits immediate NW burbs, and we all should see much less than the high elevations of Oakland county, but that has not been the case in recent years. The only winter of the past decade I can think of when I was really screwed being south of Detroit compared to areas just north would be 2003-04, whereas that sort of thing happened all the time in the 1990s. The best storm to illustrate that would be Jan 1, 2008....but I made up for that with a jackpot snowstorm 2 months later. So bottom line...we actually ARE due to be screwed, and I just hope that this one is not it.

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And this all does remind me, when looking at the thicknesss values to dechiper the snow/ice/rain lines...

*1300m (1000mb-850mb) thickness line gives you a rough estimate of where the rain & ice/snow line (for this particular storm, it will just be the rain & ice line) is.

*2840m (850mb-700mb) thickness line gives you a rough estiamte of where the ice & snow line is.

*5400m (1000mb-500mb) thickness line is useless.

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give me my front end TSSN and I will be happy :)

LOT

ISENTROPIC UPGLIDE SHOULD RAPIDLY SATURATE THE ATMOSPHERIC COLUMN

TONIGHT AS THE LOW LEVEL WIND FIELD INCREASES IN RESPONSE TO

CYCLOGENESIS ACROSS THE FRONT RANGE OF THE COLORADO ROCKIES. THE

MODELS ARE FORECASTING AN AREA OF VERY IMPRESSIVE MID-LEVEL

FRONTOGENESIS ASSOCIATED WITH THE APPROACHING MID-LEVEL WARM FRONT

LATE TONIGHT INTO SUNDAY MORNING. A CROSS SECTION FROM NORTHEAST TO

SOUTHWEST ACROSS THICKNESS FIELD SHOWS A CLASSIC FRONTOGENETIC

CIRCULATION WITH NEGATIVE EPV IN THE LAYER DIRECTLY ABOVE THE AREA

OF MAXIMUM FRONTOGENESIS. THE INTENSE AGEOSTROPHIC CIRCULATION THAT

WILL LIKELY RESULT FROM THIS FORCING...SHOULD LEAD TO A BAND OF

MODERATE TO HEAVY PRECIPITATION LATE TONIGHT INTO SUNDAY MORNING.

THERE COULD EVEN BE SOME THUNDER DUE TO THE INSTABILITY AND STRONG

FORCING.

THE BIG QUESTION FROM ALL OF THIS IS THE PRECIP TYPE. IT APPEARS

THAT THE STRONG FORCING FOR ASCENT WILL LEAD TO SOME ADIABATIC

COOLING THAT MAY BE STRONG ENOUGH TO PRODUCE A SHORT PERIOD WHEN THE

ATMOSPHERE WILL BE COLD ENOUGH TO SUPPORT A BAND OF HEAVY SNOW LATE

TONIGHT. WITHIN THIS BAND THERE COULD BE RAPID ACCUMULATIONS OF 1 TO

2 INCHES PER HOUR. LUCKILY...THIS BAND SHOULD BE PROGRESSIVE...WHICH

SHOULD LIMIT TOTAL ACCUMULATIONS

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I was just catching up this morning and I want you Detroit guys to know that I'm feeling for you. My area was right on the edge for the blizzard and it's looking like your area is on the edge for this storm. We ended up with about 4" of snow, 3" inches of sleet, and a glaze of ice. Hopefully everything will shift just slightly south and you all will get a good thump of cement.

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I hate these types of storms.. Where 10 miles north its a whiteout...South its a God Darn Ice Storm..and where Im at is sleet. What a mixed bag. I do like the forecast DTX gave it makes sense!

Im going with 6-9 inches 59 North. 3-6 Inches 94 to 59 and 1-3 94 south

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Screwed in what sense? That we don't get all snow? I am very certain we will be getting a lot of wintry precipitation.

Yes. Call me a weenie! Greed is good....(not with cash- but with snow-and not the snow that gets you feeling like superman):weight_lift:

Your right Stebo...Looks to be a solid event. Your thoughts on possible TSSN or Thundersleet.?

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Yes. Call me a weenie! Greed is good....(not with cash- but with snow-and not the snow that gets you feeling like superman):weight_lift:

Your right Stebo...Looks to be a solid event. Your thoughts on possible TSSN or Thundersleet.?

Both possible. SPC has the general thunder up about 3 tiers of counties into Michigan.

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