stormtrackertf Posted June 12, 2013 Share Posted June 12, 2013 Convection just exploding northwest of the main line that is moving through Chicago metro right now. Link to comment Share on other sites More sharing options...
Geos Posted June 12, 2013 Share Posted June 12, 2013 Storms are really exploding across southern WI. Fireworks show! Tornado warning across the river from DBQ. Link to comment Share on other sites More sharing options...
mjwise Posted June 12, 2013 Share Posted June 12, 2013 Can't remember the last time I was under a PDS anything watch, very interesting but I'm definitely on the far northern fringe of any derecho potential. Regardless, torrential rain appears to be a real concern. There has been a line of moderate showers/t-storms training over me for the past hour already along the warm front. The NAM Hires that Geos posted and 20z HRRR want to lay down some serious rain in southern MI tonight. The two systems are already sort of merging on the radar as cells continue to fill in between the two. EDIT: Forward propagation seems to be stalling on the south edge - maybe the NAM Hires will win and it will be come more training, E-W oriented? Link to comment Share on other sites More sharing options...
hm8 Posted June 12, 2013 Share Posted June 12, 2013 KLOT picked up 79 kts at 417 ft AGL Link to comment Share on other sites More sharing options...
McDude Posted June 12, 2013 Share Posted June 12, 2013 Lots of lightning and thunda... Splitting the gap as alek said Link to comment Share on other sites More sharing options...
snowlover2 Posted June 12, 2013 Share Posted June 12, 2013 Just south of the PDS t-storm watch. No matter, should get my watch and fair share of action later. Link to comment Share on other sites More sharing options...
Chargers09 Posted June 12, 2013 Share Posted June 12, 2013 New MD out for the PDS severe watch. Nice snippet: DISCUSSION...THE LATEST SFC ANALYSIS SHOWS A 1002 MB LOW OVER FARERN IA WITH A FRONTAL BOUNDARY EXTENDING ESEWD ACROSS NRN IL..NRNIND AND NW OH WITH DEWPOINTS SOUTH OF THE BOUNDARY IN THE LOWER 70SF. THIS COMBINED WITH TEMPS IN THE UPPER 80S TO THE MID 90S F ISRESULTING IN A STRONGLY UNSTABLE AIRMASS WITH MLCAPE VALUESESTIMATED IN THE 2500 TO 4000 J/KG RANGE. THIS COMBINED WITH 0-6 KMSHEAR VALUES OF 40 TO 50 KT IS CREATING AN ENVIRONMENT VERYFAVORABLE FOR SEVERE STORMS. AS LOW-LEVEL FLOW INCREASES EARLY THISEVENING...THE MCS OVER NE IL IS EXPECTED TO GROW UPSCALE INTO ABOWING LINE SEGMENT ASSOCIATED WITH WIDESPREAD WIND DAMAGE. WINDGUSTS EXCEEDING 70 KT WILL BE POSSIBLE WITH THIS LINE. IN ADDITIONTO WIND DAMAGE...SUPERCELLS EMBEDDED IN THE LINE SHOULD ALSO BECAPABLE OF PRODUCING TORNADOES. CELLS THAT FORM AHEAD OF THE LINEWILL ALSO HAVE A TORNADO AND LARGE HAIL THREAT. THE MORE DOMINANTSUPERCELLS COULD HAVE A POTENTIAL FOR STRONG TORNADOES. Link to comment Share on other sites More sharing options...
stormtrackertf Posted June 12, 2013 Share Posted June 12, 2013 The NAM Hires that Geos posted and 20z HRRR want to lay down some serious rain in southern MI tonight. The two systems are already sort of merging on the radar as cells continue to fill in between the two. EDIT: Forward propagation seems to be stalling on the south edge - maybe the NAM Hires will win and it will be come more training, E-W oriented? Just these showers moving through right now have had some pretty heavy rain at times without looking impressive at all on radar. Can't imagine the deluge going on with the beasts on the other side of the lakes right now. Link to comment Share on other sites More sharing options...
Amped Posted June 12, 2013 Share Posted June 12, 2013 Still seems to be having trouble organizing. Link to comment Share on other sites More sharing options...
A-L-E-K Posted June 12, 2013 Share Posted June 12, 2013 Lots of lightning and thunda... Splitting the gap as alek said strikes and gutters ups and downs Link to comment Share on other sites More sharing options...
nwohweather Posted June 12, 2013 Share Posted June 12, 2013 Wow cells exploding over Northern Indiana and they are all discrete. I think Northern IN into NW Ohio better watch out tonight, heading for the border now Link to comment Share on other sites More sharing options...
A-L-E-K Posted June 12, 2013 Share Posted June 12, 2013 you get the feeling widespread reports won't materials for another 1-2 hours once the line organizes and cold pool develops. Link to comment Share on other sites More sharing options...
harrisale Posted June 12, 2013 Share Posted June 12, 2013 KLOT radar has really (messily) filled in in the last half hour or so. Link to comment Share on other sites More sharing options...
Harry Perry Posted June 12, 2013 Share Posted June 12, 2013 Yeah, hoping to see some better organization soon. Dewpoint has skyrocketed here in the last hour... Link to comment Share on other sites More sharing options...
andyhb Posted June 12, 2013 Share Posted June 12, 2013 Wow cells exploding over Northern Indiana and they are all discrete. I think Northern IN into NW Ohio better watch out tonight, heading for the border now Yeah, judging by that MCD, we're about to have some problems in Northern IN. Link to comment Share on other sites More sharing options...
SpartyOn Posted June 12, 2013 Share Posted June 12, 2013 Wow cells exploding over Northern Indiana and they are all discrete. I think Northern IN into NW Ohio better watch out tonight, heading for the border now Yup, things are firing up real fast. There is a highly sheared environment in that region as well. Link to comment Share on other sites More sharing options...
Chitown Storm Posted June 12, 2013 Share Posted June 12, 2013 golf ball-sized hail lasted about 5 minutes here about an hour ago. Crazy stuff. Leaves ripped off of the trees. Link to comment Share on other sites More sharing options...
Indystorm Posted June 12, 2013 Share Posted June 12, 2013 Yeah, judging by that MCD, we're about to have some problems in Northern IN. So far at least the system seems to be coming together as expected. Initial cells were supposed to be discrete out ahead of the line and then the squall line intensifies to a derecho and charges east. Seems to be what is happening. Do expect northern IN to have a lot of straight line wind damage and isolated tor reports as the MCD indicated. Link to comment Share on other sites More sharing options...
McDude Posted June 12, 2013 Share Posted June 12, 2013 strikes and gutters ups and downs hmmm... trees were eerily not moving as the storm passed. Now are blowing around. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted June 12, 2013 Share Posted June 12, 2013 At this point this appears to have been a big ol' capped dud for east-central Iowa. Link to comment Share on other sites More sharing options...
Geos Posted June 12, 2013 Share Posted June 12, 2013 Tornado warning SE of DBQ. SEVERE WEATHER STATEMENTNATIONAL WEATHER SERVICE QUAD CITIES IA IL549 PM CDT WED JUN 12 2013ILC085-122300-/O.CON.KDVN.TO.W.0010.000000T0000Z-130612T2300Z/JO DAVIESS IL-549 PM CDT WED JUN 12 2013...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN JO DAVIESSCOUNTY UNTIL 600 PM CDT...AT 546 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADOWAS LOCATED NEAR EAST DUBUQUE...AND MOVING SOUTHEAST AT 20 MPH.HAZARD...DEVELOPING TORNADO AND QUARTER SIZE HAIL.SOURCE...RADAR INDICATED ROTATION.IMPACT...MOBILE HOMES WILL BE HEAVILY DAMAGED OR DESTROYED. SIGNIFICANT DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL BE DEADLY TO PEOPLE AND ANIMALS. EXTENSIVE TREE DAMAGE IS LIKELY.THIS DANGEROUS STORM WILL BE NEAR... MENOMINEE AROUND 555 PM CDT.PRECAUTIONARY/PREPAREDNESS ACTIONS...TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF ASTURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OROUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECTYOURSELF FROM FLYING DEBRIS.&&LAT...LON 4249 9052 4245 9046 4242 9055 4242 9056 4244 9057 4246 9062 4251 9064 4251 9062 4251 9058TIME...MOT...LOC 2249Z 322DEG 19KT 4248 9061TORNADO...RADAR INDICATEDHAIL...1.00IN$$SHEETS Warnings west of Milwaukee cover a lot of real estate. Link to comment Share on other sites More sharing options...
A-L-E-K Posted June 12, 2013 Share Posted June 12, 2013 At this point this appears to have been a big ol' capped dud for east-central Iowa. looks like a buster IMBY as well...cell moving in crapping out quick Link to comment Share on other sites More sharing options...
SluggerWx Posted June 12, 2013 Share Posted June 12, 2013 The cell to the immediate W/NW of Richland Center, WI is ramping up and could track right into Madison. Link to comment Share on other sites More sharing options...
KeenerWx Posted June 12, 2013 Share Posted June 12, 2013 Warning issued for the local area, ping pong sized hail and gusts to 80 mph. Still think the greatest threat will be east of here, but I'm ready for whatever Link to comment Share on other sites More sharing options...
wisconsinwx Posted June 12, 2013 Share Posted June 12, 2013 Pretty impressive pop up storms moving through now, and this is technically the appetizer if that main line just to the west/northwest maintains its 80mph wind intensity (supposedly). Link to comment Share on other sites More sharing options...
andyhb Posted June 12, 2013 Share Posted June 12, 2013 Significant damage reported in Belmond, IA via KCRG. Link to comment Share on other sites More sharing options...
McDude Posted June 12, 2013 Share Posted June 12, 2013 looks like a buster IMBY as well...cell moving in crapping out quickCancelled plans going out with the wife. Feel like a sh!t head now. I knew they would die out... Link to comment Share on other sites More sharing options...
hm8 Posted June 12, 2013 Share Posted June 12, 2013 Rotation near Crete, IL Link to comment Share on other sites More sharing options...
andyhb Posted June 12, 2013 Share Posted June 12, 2013 Rotation near Crete, IL This stuff in the southern Chicago metro is looking more semi-discrete than anything. Link to comment Share on other sites More sharing options...
Jim Marusak Posted June 12, 2013 Share Posted June 12, 2013 looking at the Chicago Heights area towards Lynwood and Schererville, there's a real nasty looking near-hook down there that developed off the LOT radar the last couple of frames. Is that just part of a cluster with a leading edge of gusts, or is anyone seeing rotation on radar down there like I am? Link to comment Share on other sites More sharing options...
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