The_Doctor Posted June 30, 2014 Share Posted June 30, 2014 Guesses on how big the largest warning box will be? Link to comment Share on other sites More sharing options...
andyhb Posted June 30, 2014 Share Posted June 30, 2014 Cedar Rapids and DVN sitting right in the trolley tracks of this thing. Link to comment Share on other sites More sharing options...
tornadotony Posted June 30, 2014 Share Posted June 30, 2014 Dualing RIJs in central IA with large areas of 80-90 kt winds aloft. This is gonna be one to remember. Link to comment Share on other sites More sharing options...
Hoosier Posted June 30, 2014 Share Posted June 30, 2014 88/79 at PNT same airmass is rapidly advecting into Chicago metro Widespread 75-79 degree dewpoints in IL south of I-80. Also, that boundary from earlier appears to be in the process of washing out. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted June 30, 2014 Author Share Posted June 30, 2014 In Sterling, might head to Clinton. Link to comment Share on other sites More sharing options...
cyclone77 Posted June 30, 2014 Share Posted June 30, 2014 Radar showing wide swaths of 80-90kts up around 9-10kft behind the line. This things gonna do some work on eastern IA the next hour or two. EDIT: Ninja'd by TT lol. Link to comment Share on other sites More sharing options...
tornadotony Posted June 30, 2014 Share Posted June 30, 2014 Link to comment Share on other sites More sharing options...
Hoosier Posted June 30, 2014 Share Posted June 30, 2014 Warning updates out of DVN are mentioning 80 mph winds and half dollar size hail. Link to comment Share on other sites More sharing options...
andyhb Posted June 30, 2014 Share Posted June 30, 2014 hawkeye is gonna get raked, should have some interesting reports. Link to comment Share on other sites More sharing options...
Hoosier Posted June 30, 2014 Share Posted June 30, 2014 FWIW, Gil Sebenste upgraded the area to high risk (not to be confused with SPC's risk categories). Link to comment Share on other sites More sharing options...
Kaner88 Posted June 30, 2014 Share Posted June 30, 2014 Mesoanalysis shows a tongue of 4500 j/kg CAPE stretching into NC IL. Link to comment Share on other sites More sharing options...
A-L-E-K Posted June 30, 2014 Share Posted June 30, 2014 Radar showing wide swaths of 80-90kts up around 9-10kft behind the line. This things gonna do some work on eastern IA the next hour or two. EDIT: Ninja'd by TT lol. you going to do a timelapse? overall complex structure has really taken off over the last half hour Link to comment Share on other sites More sharing options...
RyanDe680 Posted June 30, 2014 Share Posted June 30, 2014 Quad cities are gonna get raked... It's starting to bow out as well. Link to comment Share on other sites More sharing options...
Gilbertfly Posted June 30, 2014 Share Posted June 30, 2014 88/79 at PNT same airmass is rapidly advecting into Chicago metro 85/77 for me now .... (Using Clow Int Airport a few blocks from my house FWIW) Link to comment Share on other sites More sharing options...
Thundersnow12 Posted June 30, 2014 Author Share Posted June 30, 2014 Getting gas in Sterling then heading to Clinton. Link to comment Share on other sites More sharing options...
A-L-E-K Posted June 30, 2014 Share Posted June 30, 2014 85/77 for me now .... (Using Clow Int Airport a few blocks from my house FWIW) one of the fastest/most impressive airmass recoveries i can remember for our area Link to comment Share on other sites More sharing options...
andyhb Posted June 30, 2014 Share Posted June 30, 2014 I'd hope SPC is considering pink at 20z given DCAPEs well over 1000 J/kg ahead of this thing, strong deep layer shear, increasing low level winds, and an extremely moist/unstable environment. This thing has all it needs to become a potentially historic derecho. Link to comment Share on other sites More sharing options...
A-L-E-K Posted June 30, 2014 Share Posted June 30, 2014 watch the persistent vort and development of RIJs Link to comment Share on other sites More sharing options...
Chicago Storm Posted June 30, 2014 Share Posted June 30, 2014 Looks like the apex of the bow will move through the two rows of counties along/north of I-80 in IA...Putting CID, IOW, DVN and CWI is the path...and eventually cycloneville. Link to comment Share on other sites More sharing options...
Geos Posted June 30, 2014 Share Posted June 30, 2014 85/71 here in Racine. Link to comment Share on other sites More sharing options...
Hoosier Posted June 30, 2014 Share Posted June 30, 2014 I'd hope SPC is considering pink at 20z given DCAPEs well over 1000 J/kg ahead of this thing, strong deep layer shear, increasing low level winds, and an extremely moist/unstable environment. This thing has all it needs to become a potentially historic derecho. Do we usually get an MCD announcing an upcoming upgrade or not always? Link to comment Share on other sites More sharing options...
Wmsptwx Posted June 30, 2014 Share Posted June 30, 2014 Looks like Quincy better call it a day for sup/discrete chasing...wont be fun just getting caught in a nasty MCS. Link to comment Share on other sites More sharing options...
TheWeatherPimp Posted June 30, 2014 Share Posted June 30, 2014 Do we usually get an MCD announcing an upcoming upgrade or not always? Not always. They mentioned on Twitter that it was a possibility. Link to comment Share on other sites More sharing options...
andyhb Posted June 30, 2014 Share Posted June 30, 2014 Do we usually get an MCD announcing an upcoming upgrade or not always? Usually, but I believe it's not always the case. Edit: Ninja'd. Link to comment Share on other sites More sharing options...
tornadotony Posted June 30, 2014 Share Posted June 30, 2014 Do we usually get an MCD announcing an upcoming upgrade or not always? Not always. Link to comment Share on other sites More sharing options...
Kaner88 Posted June 30, 2014 Share Posted June 30, 2014 Usually, but I believe it's not always the case. Edit: Ninja'd. IIRC, last High Risk issuance for this area (sometime in the middle of last June, I believe) featured a MCD in advance. One would think they would announce such an upgrade in advance, just to get the word out, but I guess we'll have to see. Link to comment Share on other sites More sharing options...
forkyfork Posted June 30, 2014 Share Posted June 30, 2014 it's clearly accelerating Link to comment Share on other sites More sharing options...
A-L-E-K Posted June 30, 2014 Share Posted June 30, 2014 it's clearly accelerating kai'd foward movement picking up and starting to see more of a traditional radar presentation. looks textbook compared to other big time regional derecho events Link to comment Share on other sites More sharing options...
andyhb Posted June 30, 2014 Share Posted June 30, 2014 Cedar Rapids ASOS gusting to 62 kts on the lead edge. Link to comment Share on other sites More sharing options...
Chinook Posted June 30, 2014 Share Posted June 30, 2014 Cedar Rapids Airport, gust to 71mph just in front of the line. DVN radar seeing 101kts in the clouds (base velocity) headed towards Cedar Rapids. Link to comment Share on other sites More sharing options...
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