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January 19-21 MW/GL/OV Storm part 2


Hoosier

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amazing how well that matches up with the advisories...lol...coincidence. I really be surprised if ILN didn't fill in Delaware, Union etc. If they don't now, i bet they do in the morning as a nowcast.

I know, I thought that was funny too. But on radar it looks stronger than the models showed it.

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AREA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE WILMINGTON OH

338 PM EST WED JAN 19 2011

.SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/...

12Z MODELS ARE IN GOOD AGREEMENT SLOWLY STRENGTHENING A WEAK SURFACE

WAVE/LOW AS IT MOVES ACROSS THE TENNESSEE VALLEY ON THURSDAY. THE

LOW WILL THEN CONTINUE TO STRENGTHEN AS IT MOVES TO THE EAST COAST

THROUGH THURSDAY NIGHT. THE ASSOCIATED WEAK 925MB-850MB WAVE WILL

MOVE ALONG THE OHIO RIVER THROUGH THE DAY ON THURSDAY AND AS IT

DOES...DECENT LOW LEVEL CONVERGENCE WILL DEVELOP ACROSS ABOUT THE

SOUTHERN TWO THIRDS OF OUR AREA. HOWEVER...GIVEN THE WEAKER NATURE

OF THE LOW...FRONTOGENETIC FORCING REMAINS RELATIVELY WEAK AND THIS

MIGHT LIMIT QPF AMOUNTS TO A DEGREE. THAT BEING SAID...THE MODELS

ARE FAIRLY CONSISTENT PAINTING AN AREA OF .25-.35 INCHES OF QPF

ACROSS OUR AREA. FORECAST SOUNDINGS ARE INDICATING THAT WHILE

OVERALL OMEGA WILL NOT BE TERRIBLY STRONG...IT WILL BE DEEP AND

LAST FOR A GOOD 12 HOURS. IN ADDITION THE DENDRICTIC GROWTH ZONE IS

ALSO QUITE DEEP THROUGH MUCH OF THE EVENT. THIS SHOULD ALLOW FOR

SOME EFFICIENT LIQUID TO SNOW RATIOS ON THE ORDER OF 15 TO 1. ONE

THING GOING AGAINST THE SNOW ACCUMULATION THOUGH WILL BE THAT THE

BULK OF IT WILL BE FALLING DURING THE DAYLIGHT HOURS AND THIS MAY

LIMIT ACCUMULATIONS TO A DEGREE. BASED ON ALL OF THIS...THERE IS

NOT A WHOLE LOT OF CHANGE IN OUR THINKING FOR STORM TOTAL SNOWFALL

AMOUNTS. GENERALLY EXPECT ABOUT 4 TO POSSIBLY 6 INCHES ACROSS

SOUTHEAST INDIANA INTO SOUTHWEST OHIO AND PARTS OF CENTRAL/SOUTH

CENTRAL OHIO WITH 3 TO 4 INCHES TO THE NORTH AND SOUTH OF THERE.

WILL GO AHEAD AND GO WITH AN ADVISORY FOR A TIER OF COUNTIES

FARTHER NORTH FROM DARKE COUNTY OHIO OVER TO DELAWARE COUNTY OHIO.

OTHERWISE...NO CHANGES PLANNED TO CURRENT HEADLINES.

THE SNOW SHOULD TAPER OFF FAIRLY QUICKLY FROM THE WEST THURSDAY

EVENING AS STRONG CAA DEVELOPS ON THE BACKSIDE OF THE LOW. THIS

WILL LEAD TO INCREASING AND GUSTY WEST TO NORTHWEST WINDS THURSDAY

NIGHT INTO FRIDAY MORNING...LIKELY RESULTING IN AREAS OF BLOWING

AND DRIFTING SNOW. AS 8H TEMPS DROP INTO THE -15 TO -20 DEGREE

CELSIUS RANGE BY FRIDAY MORNING...ONLY EXPECT DAYTIME HIGHS IN THE LOW

TO MID TEENS. THIS WILL PUSH WIND CHILL FACTORS DOWN INTO THE

ZERO TO 10 BELOW RANGE LATE THURSDAY NIGHT INTO FRIDAY.

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18z gfs appears to be a tad north and a tad stronger. EDIT: Maybe not..

yea, i'd say a tad south with the precip in ohio, not by much 20 miles or less. Looks like the nam and gfs are honing in on one another. I'll stick with my call but i would put the heaviest axis thru ohio from just north of cincy, thru circleville to cambridge.

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yea, i'd say a tad south with the precip in ohio, not by much 20 miles or less. Looks like the nam and gfs are honing in on one another. I'll stick with my call but i would put the heaviest axis thru ohio from just north of cincy, thru circleville to cambridge.

im not sure how well models do 24hrs out to be honest, I normally wouldve stopped looking at models within the 24hr time frame, but not this year.

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some qpf numbers from the 18z gfs

CMH .23

ZZV .24

CVG .34

PIT .31

IND .21

LAF .12

CLE .17

Better hope that isnt correct or many areas will need to rely on 20:1 ratios to get to the forecasted totals

I think looking at models is over. You can tell by the radar they are underdoing the strength of this. Seems to be a theme so far with storms overproducing and this looks to be no different.

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slowing down a bit here but for a couple hours we were getting crushed. fast storm...about 5-6"

what is your location? The one under your name is manhattan EDIT, NVM manhattan, KS.. gotcha.. Kansas city looks to be doing real well with this storm.. Have you over/underperformed compared to what NWS had?

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