Chicago Storm Posted December 20, 2012 Share Posted December 20, 2012 Severe warning out in N. Missouri for quarter size hail...36KFT tops. OBS down the road in IRK are 36/36. Link to comment Share on other sites More sharing options...
Jonbo Posted December 20, 2012 Share Posted December 20, 2012 Just saw lightning here in West Des Moines. Link to comment Share on other sites More sharing options...
cyclone77 Posted December 20, 2012 Share Posted December 20, 2012 Severe storm warning in north-central Missouri, with heavy snows across the border in central Iowa. Gotta love it. EDIT: Chi-storm beat me to it Link to comment Share on other sites More sharing options...
Natester Posted December 20, 2012 Share Posted December 20, 2012 Snow has stopped for now. The lull won't last long as the main show will start in an hour. Link to comment Share on other sites More sharing options...
Iastfan112 Posted December 20, 2012 Share Posted December 20, 2012 Friend reporting thundersnow west of Des Moines. Link to comment Share on other sites More sharing options...
Hoosier Posted December 20, 2012 Share Posted December 20, 2012 Severe storm warning in north-central Missouri, with heavy snows across the border in central Iowa. Gotta love it. EDIT: Chi-storm beat me to it So nice to have active weather...been waiting too long for something legit. NAM is very intriguing...would certainly bust some forecasts. Link to comment Share on other sites More sharing options...
andyhb Posted December 20, 2012 Author Share Posted December 20, 2012 Radar out of Fort Smith OK is lighting up like a Christmas tree. Fort Smith is in Arkansas... Link to comment Share on other sites More sharing options...
beavis1729 Posted December 20, 2012 Share Posted December 20, 2012 Lets see what the GFS does with it. Sfc low looks to be on the southeast KS/northeast OK border. Yep...lowest pressure I found was 996.7 mb (29.44") in Coffeyville KS. Link to comment Share on other sites More sharing options...
Geos Posted December 20, 2012 Share Posted December 20, 2012 Flakes flying here! Can't believe the shift in the NAM's defo band! Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 i see LOT has my point at 2-4...i still think that is high but hopefully the NAM is onto something. Link to comment Share on other sites More sharing options...
cyclone77 Posted December 20, 2012 Share Posted December 20, 2012 NAM's developing secondary deform at 18z. This would definitely be nice for Illinois. Lets hope trends continue... Link to comment Share on other sites More sharing options...
wisconsinwx Posted December 20, 2012 Share Posted December 20, 2012 Flakes flying here! Can't believe the shift in the NAM's defo band! I'm not sure I buy it. Could happen with the weird NE then E movement of this low, but weird to have some dry slotting issues here NW of the low. Can happen occasionally. Link to comment Share on other sites More sharing options...
Hoosier Posted December 20, 2012 Share Posted December 20, 2012 NAM forecast sounding for ORD valid at midnight tomorrow Low level lapse rates not quite dry adiabatic but may be able to tap into some of that 60 kts at 900 mb I'm pretty convinced there are going to be many thousands of power outages, especially with multiple large metros in play. Wet snow certainly will bring down a lot of branches but one thing that may save us from widespread/severe tree loss is that the soils are dry. Link to comment Share on other sites More sharing options...
Chicago WX Posted December 20, 2012 Share Posted December 20, 2012 NAM's developing secondary deform at 18z. This would definitely be nice for Illinois. Lets hope trends continue... With a Severe Thunderstorm Warning polygon right behind that band. Link to comment Share on other sites More sharing options...
cyclone77 Posted December 20, 2012 Share Posted December 20, 2012 Some 0.75-1.00" hail reports coming out of that elevated severe warned cell in northern Missouri. Link to comment Share on other sites More sharing options...
cyclone77 Posted December 20, 2012 Share Posted December 20, 2012 With a Severe Warning box right behind that band. Haha. That's when you know you have a hell of a storm. Link to comment Share on other sites More sharing options...
Nelson Posted December 20, 2012 Share Posted December 20, 2012 Stating the obvious, but if you stay all snow...you're gonna get rocked. Good luck. Agreed! A little worried about mixing issues in the morning but hoping for the best. Will try and post pics as the night/day wears on. Good luck to everyone else! Rooting for a slight SE shift Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 NAM forecast sounding for ORD valid at midnight tomorrow Low level lapse rates not quite dry adiabatic but may be able to tap into some of that 60 kts at 900 mb I'm pretty convinced there are going to be many thousands of power outages, especially with multiple large metros in play. Wet snow certainly will bring down a lot of branches but one thing that may save us from widespread/severe tree loss is that the soils are dry. We're about to change that with .5-.8" or rain Link to comment Share on other sites More sharing options...
Justin Posted December 20, 2012 Share Posted December 20, 2012 The dynamics of the system are just amazing. Those same dynamics will be interesting to watch to see if the lift and the mid/upr lows closing off where they do help the switch over around here happen sooner. I wouldn't be shocked. UVM certainly in the NAMS 2nd defo band could fire off some thundersnow around here tomorrow morning to around mid day or there abouts. I'm not quite ready to toss my 4-8" call across this area yet. Link to comment Share on other sites More sharing options...
Jonbo Posted December 20, 2012 Share Posted December 20, 2012 Thundersnow ramping up here. Decent lightning and Thunder action. Link to comment Share on other sites More sharing options...
Hoosier Posted December 20, 2012 Share Posted December 20, 2012 We're about to change that with .5-.8" or rain Yeah, but not like the soils are waterlogged going into it. That would only escalate things even more. Link to comment Share on other sites More sharing options...
Chicago Storm Posted December 20, 2012 Share Posted December 20, 2012 Numerous reports of TSSN coming in west of DSM. Activity showing up well on the USPLN feed to the south and west of DSM. Link to comment Share on other sites More sharing options...
Chicago Storm Posted December 20, 2012 Share Posted December 20, 2012 NAM showing high VV's in that 2nd deformation band tomorrow. Link to comment Share on other sites More sharing options...
andyhb Posted December 20, 2012 Author Share Posted December 20, 2012 NAM showing high VV's in that 2nd deformation band tomorrow. Almost maxed out the scale on that first image. Link to comment Share on other sites More sharing options...
Indystorm Posted December 20, 2012 Share Posted December 20, 2012 Always love seeing lightning reports up here in the Midwest this close to Christmas, whether svr warning or thundersnow. This is going to be quite the storm if it fully develops as expected. 40' waves on Lake Michigan. Sheesh! Link to comment Share on other sites More sharing options...
hm8 Posted December 20, 2012 Share Posted December 20, 2012 Almost maxed out the scale on that first image. Pretty sure the COD Site adjusts the scale every image to just fit the max.... Still impressive none the less. Link to comment Share on other sites More sharing options...
turtlehurricane Posted December 20, 2012 Share Posted December 20, 2012 Just woke up from a refreshing nap, snowing pretty good out there! Down to 31 °F at MSN and 30 °F on top of the meteorology building. Have a dusting on surfaces that didn't already have snow. Link to comment Share on other sites More sharing options...
TimChgo9 Posted December 20, 2012 Share Posted December 20, 2012 My son just took some decent lightning photos from the Dallas-Ft. Worth area. They got some decent thunderstorms going down that way right now. Bouncing between house stuff, and hitting the forums. Got them on my iPhone too. Prepping for possible power outages and such tomorrow. Link to comment Share on other sites More sharing options...
A-L-E-K Posted December 20, 2012 Share Posted December 20, 2012 NAM showing high VV's in that 2nd deformation band tomorrow. It's a shame the NAM solution is garbage. Link to comment Share on other sites More sharing options...
andyhb Posted December 20, 2012 Author Share Posted December 20, 2012 Pretty sure the COD Site adjusts the scale every image to just fit the max.... Still impressive none the less. Yeah just noticed that, still, popping a 43.0 on that thing is a feat. Link to comment Share on other sites More sharing options...
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