Chicago Storm Posted December 23, 2015 Share Posted December 23, 2015 A ton of small couplets in embedded in the LWEP's this morning. One passed near Grant Park, IL a short time ago...Another near Attica, IN a short time ago...And more in the severe line in S. Illinois. Link to comment Share on other sites More sharing options...
Hoosier Posted December 23, 2015 Share Posted December 23, 2015 Here's how you know this is a dynamic winter setup...after that line with torrential rain, temps/dews at the nearby ob sites didn't drop at all. Link to comment Share on other sites More sharing options...
Geos Posted December 23, 2015 Share Posted December 23, 2015 No more thunder, but the rain drop size has been huge - more like summer time. Link to comment Share on other sites More sharing options...
snowlover2 Posted December 23, 2015 Share Posted December 23, 2015 New tornado watch coming for IN/KY soon. MESOSCALE DISCUSSION 2038 NWS STORM PREDICTION CENTER NORMAN OK 1206 PM CST WED DEC 23 2015 AREAS AFFECTED...WRN IL...SRN IND...NRN KY CONCERNING...SEVERE POTENTIAL...WATCH LIKELY VALID 231806Z - 231930Z PROBABILITY OF WATCH ISSUANCE...95 PERCENT SUMMARY...FAST-MOVING LINE OF STORMS OVER SOUTHERN IL WILL TRACK INTO SOUTHERN IND AND NORTHWEST KY THIS AFTERNOON. A NEW WW WILL BE NEEDED SOON. DISCUSSION...RADAR LOOPS SHOW A LONG-LIVED BOWING CONVECTIVE LINE SEGMENT AFFECTING PARTS OF SOUTHERN IL...TRACKING NORTHEASTWARD AT OVER 50 KNOTS. SEVERAL BOW/LEWP STRUCTURES WITHIN THE LINE APPEAR CAPABLE OF SWATHS OF RATHER WIDESPREAD DAMAGING WINDS...AND PERHAPS ISOLATED QLCS TORNADOES. THE AIR MASS FARTHER NORTHEAST INTO IND IS FAIRLY HOMOGENEOUS...SUGGESTING STORMS WILL MAINTAIN THEIR INTENSITIES FOR SEVERAL MORE HOURS. A NEW WW WILL BE ISSUED SOON TO INCLUDE PORTIONS OF SOUTHERN IND AND NORTHERN KY. ..HART/GRAMS.. 12/23/2015 ATTN...WFO...ILN...LMK...IND...PAH...ILX...LSX... Link to comment Share on other sites More sharing options...
Chicago Storm Posted December 23, 2015 Share Posted December 23, 2015 SE. IL... Link to comment Share on other sites More sharing options...
zestylabs Posted December 23, 2015 Share Posted December 23, 2015 streaming just outside of princeton heading west to intercept tornado warned cell... Link to comment Share on other sites More sharing options...
geddyweather Posted December 23, 2015 Share Posted December 23, 2015 New Tornado Watch up quickly for Kentucky and Indiana. 50/30 tornado probs and 80/60 wind probs. Link to comment Share on other sites More sharing options...
*IndyMeso* Posted December 23, 2015 Share Posted December 23, 2015 Pretty good swath of counties here. Link to comment Share on other sites More sharing options...
blue60007 Posted December 23, 2015 Share Posted December 23, 2015 Nothing much with the warned storm here. Some serious April-like downpours and gusty winds though. Link to comment Share on other sites More sharing options...
JacobChgo19 Posted December 23, 2015 Share Posted December 23, 2015 Some significant clearing to my west. Temperature has not dropped off, and the clouds are actually beginning to thin a little bit. Link to comment Share on other sites More sharing options...
BrettenBailey Posted December 23, 2015 Share Posted December 23, 2015 ^Meso out for that clearing now. The winds are pretty hefty with the showers we're getting in Southern MI right now. Will be interesting to see how things play out but the temps are holding steady for now. Link to comment Share on other sites More sharing options...
Hoosier Posted December 23, 2015 Share Posted December 23, 2015 Wider view Link to comment Share on other sites More sharing options...
JacobChgo19 Posted December 23, 2015 Share Posted December 23, 2015 Wider view Oops. Didn't know my phone was going to give a narrower view. But yeah, the clearing towards Missouri and Wrn IL concerns me. The clouds overhead (about 10 miles S. of O'Hare) are thinning somewhat, and it's getting a lot brighter. Looks like it's gonna be a fun day for somebody. Link to comment Share on other sites More sharing options...
Jonger Posted December 23, 2015 Share Posted December 23, 2015 Damn he found one. Link to comment Share on other sites More sharing options...
Hoosier Posted December 23, 2015 Share Posted December 23, 2015 Seems like destabilization is lagging...for instance, if mesoanalysis is to be believed, I'm only seeing 500-750 J/kg SBCAPE in Missouri and some earlier models were indicating 1000-1500+ J/kg at this time. Steeper lapse rates will be moving in and even if we stay below 1000 J/kg, it could be enough, but just saying. Link to comment Share on other sites More sharing options...
Jonger Posted December 23, 2015 Share Posted December 23, 2015 Haha I got fooled. Link to comment Share on other sites More sharing options...
zestylabs Posted December 23, 2015 Share Posted December 23, 2015 nice shelf cloud live just west of princeton Link to comment Share on other sites More sharing options...
Hoosier Posted December 23, 2015 Share Posted December 23, 2015 Surface low down to 984 mb in northern Missouri. Link to comment Share on other sites More sharing options...
nwohweather Posted December 23, 2015 Share Posted December 23, 2015 Sun is out here officially Link to comment Share on other sites More sharing options...
*IndyMeso* Posted December 23, 2015 Share Posted December 23, 2015 BULLETIN - EAS ACTIVATION REQUESTEDTORNADO WARNINGNATIONAL WEATHER SERVICE PADUCAH KY101 PM CST WED DEC 23 2015THE NATIONAL WEATHER SERVICE IN PADUCAH HAS ISSUED A* TORNADO WARNING FOR...CENTRAL GIBSON COUNTY IN SOUTHWESTERN INDIANA...* UNTIL 130 PM CST* AT 101 PM CST...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING ATORNADO WAS LOCATED OVER OWENSVILLE...OR 8 MILES WEST OF FORTBRANCH...MOVING NORTHEAST AT 55 MPH.HAZARD...TORNADO.SOURCE...RADAR INDICATED ROTATION.IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUTSHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREEDAMAGE IS LIKELY.* THIS DANGEROUS STORM WILL BE NEAR...PRINCETON AND PATOKA AROUND 115 PM CST.OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDEHAZLETON. Link to comment Share on other sites More sharing options...
janetjanet998 Posted December 23, 2015 Share Posted December 23, 2015 I guess only 1 or 2 posters in the TN valley forum where they have a MOD risk and PDS TOR watch zzzzzzzzzzzzz anyway ESOSCALE DISCUSSION 2039 NWS STORM PREDICTION CENTER NORMAN OK 1242 PM CST WED DEC 23 2015 AREAS AFFECTED...PORTIONS OF SERN IA...ERN MO...AND WRN IL CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE VALID 231842Z - 232045Z PROBABILITY OF WATCH ISSUANCE...60 PERCENT SUMMARY...THE THREAT FOR DAMAGING WINDS...LARGE HAIL...AND ISOLATED TORNADOES WILL CONTINUE TO INCREASE OVER THE NEXT HOUR OR TWO. WW ISSUANCE IS POSSIBLE. DISCUSSION...IN THE WAKE OF EARLIER SHOWERS/THUNDERSTORMS...VISIBLE SATELLITE IMAGERY SHOWS SOME CLEARING ACROSS PORTIONS OF WRN/CNTRL MO AS A COMPACT SHORTWAVE TROUGH CURRENTLY OVER ERN NEB/WRN IA MOVES NEWD WITH TIME. BANDED CU HAVE RECENTLY FORMED ACROSS CNTRL MO AHEAD OF A COLD FRONT AND IN ASSOCIATION WITH DCVA ATTENDANT TO THE SHORTWAVE TROUGH. VWPS FROM AREA RADARS SHOW A STRONGLY SHEARED LOWER-TROPOSPHERIC PROFILE...WITH EFFECTIVE BULK SHEAR RANGING FROM 40-70 KT ACROSS THE MCD AREA...AND EFFECTIVE SRH IN EXCESS OF 250 M2/S2. THE MAIN LIMITING FACTOR THAT COULD PRELUDE A MORE ROBUST SEVERE THREAT IS THE MARGINAL THERMODYNAMIC ENVIRONMENT...WITH MLCAPE STRUGGLING TO REACH 250 J/KG AS OF 18Z. HOWEVER...CONTINUED NWD TRANSPORT OF MID 50S DEWPOINTS COMBINED WITH MODEST SFC HEATING BEHIND EARLIER CONVECTION AND STEEPENING MID-LEVEL LAPSE RATES SHOULD ALLOW MLCAPE TO INCREASE TO AROUND 500-750 J/KG BY LATE THIS AFTERNOON. THIS COMBINATION OF SUFFICIENT INSTABILITY WITH VERY STRONG SHEAR SHOULD ENCOURAGE ISOLATED CONVECTIVE DEVELOPMENT BY 20-21Z ACROSS PORTIONS OF THE MCD AREA...WHICH IS SUPPORTED BY THE LATEST NCEP HRRR AND 12Z NSSL WRF. THE THREAT FOR DAMAGING WINDS...LARGE HAIL...AND ISOLATED TORNADOES WILL EXIST. DEPENDING ON CONVECTIVE DEVELOPMENT/EVOLUTION OVER THE NEXT SEVERAL HOURS...WW ISSUANCE IS POSSIBLE. Link to comment Share on other sites More sharing options...
*IndyMeso* Posted December 23, 2015 Share Posted December 23, 2015 Just heard my first roll of thunder at work in downtown. I have to keep reminding myself Christmas Eve is tomorrow. Otherwise, temps holding steady at 64. Link to comment Share on other sites More sharing options...
Hoosier Posted December 23, 2015 Share Posted December 23, 2015 Kansas City broke their December low pressure record...been down to 984.5 mb and the record was 986.1 mb Link to comment Share on other sites More sharing options...
Chicago Storm Posted December 23, 2015 Share Posted December 23, 2015 Nice couplet a short time ago in the tor warning in SW. IN, just southwest of the VWX radar site. Another couplet near Decker, IN now...just went tor warned. Link to comment Share on other sites More sharing options...
*IndyMeso* Posted December 23, 2015 Share Posted December 23, 2015 Nice couplet a short time ago in the tor warning in SW. IN, just southwest of the VWX radar site. Another couplet near Decker, IN now...just went tor warned. BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 212 PM EST WED DEC 23 2015 THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A * TORNADO WARNING FOR... CENTRAL KNOX COUNTY IN SOUTHWESTERN INDIANA... NORTHERN DAVIESS COUNTY IN SOUTHWESTERN INDIANA... * UNTIL 230 PM EST * AT 212 PM EST...SEVERE THUNDERSTORMS CAPABLE OF PRODUCING BOTH TORNADOES AND EXTENSIVE STRAIGHT LINE WIND DAMAGE WERE LOCATED NEAR VINCENNES...MOVING NORTHEAST AT 60 MPH. HAZARD...TORNADO. SOURCE...RADAR INDICATED ROTATION. IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS LIKELY. * THESE DANGEROUS STORMS WILL BE NEAR... VINCENNES AROUND 220 PM EST. WASHINGTON AROUND 230 PM EST. OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE DECKER...PLAINVILLE...EDWARDSPORT...BICKNELL...MONROE CITY AND WHEATLAND. Link to comment Share on other sites More sharing options...
jojo762 Posted December 23, 2015 Share Posted December 23, 2015 Looks like several semi-discrete supercells trying to get going east of LZK.. Link to comment Share on other sites More sharing options...
Derecho! Posted December 23, 2015 Share Posted December 23, 2015 I guess only 1 or 2 posters in the TN valley forum where they have a MOD risk and PDS TOR watch zzzzzzzzzzzzz yep, TN valley is dead, and the Southeastern Forum is really the "North Carolina Snow Flurries" forum, God how I hate regional forums. Link to comment Share on other sites More sharing options...
Chinook Posted December 23, 2015 Share Posted December 23, 2015 Looks like several semi-discrete supercells trying to get going east of LZK.. I was thinking that rotation may be organizing in some of those cells. Well maybe not huge right now. 1" hail reports NE Arkansas. edit: also tennis ball 2.50" hail in Arkansas!! Link to comment Share on other sites More sharing options...
ClicheVortex2014 Posted December 23, 2015 Share Posted December 23, 2015 Sun is easily breaking through in Mississippi now and clouds are continuing to thin and/or break up Link to comment Share on other sites More sharing options...
Derecho! Posted December 23, 2015 Share Posted December 23, 2015 So getting on a plane from DC to Dallas in an hour. This should be fun. Wedges from the window seat? Link to comment Share on other sites More sharing options...
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