Gilbertfly Posted August 25, 2014 Share Posted August 25, 2014 Impressive wind signature south of Rochelle. 73kts at 5800ft. pretty big warning out for that portion now....I'm sitting in a good spot for that line.... things have destabilized quite a bit again here after full sunshine for about 45 minutes now....we'll see if it's enough to maintain Or not...faded away on me Link to comment Share on other sites More sharing options...
Geos Posted August 25, 2014 Share Posted August 25, 2014 I count at least 5 outflow boundaries on this image. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted August 25, 2014 Share Posted August 25, 2014 Awesome layered shelf cloud with the gust front Link to comment Share on other sites More sharing options...
Powerball Posted August 25, 2014 Share Posted August 25, 2014 Pretty massive model failure today as far as these storms. Hopefully it doesn't screw over the marginal potential here tomorrow for both convection and 90*F highs... Link to comment Share on other sites More sharing options...
tornadotony Posted August 25, 2014 Share Posted August 25, 2014 Looks like a possible undular bore moving over Cook County. Will have to plot out 1-min ASOS data from KMDW sometime later to confirm. Link to comment Share on other sites More sharing options...
huronicane Posted August 25, 2014 Share Posted August 25, 2014 Some pictures from earlier: Link to comment Share on other sites More sharing options...
Hoosier Posted August 25, 2014 Share Posted August 25, 2014 Looks like the far east side of LAF got rolled (based on radar). Nothing too dramatic here. ... PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE INDIANAPOLIS IN 642 PM EDT MON AUG 25 2014 .TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON .DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE. ..REMARKS.. 0636 PM HAIL LAFAYETTE 40.41N 86.87W 08/25/2014 E2.00 INCH TIPPECANOE IN TRAINED SPOTTER OUT OF TOWN METEOROLOGIST REPORTED PEA SIZE HAIL WITH OCCASIONAL 2 INCH HAILSTONES. WIND GUSTS UP TO 60 MPH CAUSED TREE DAMAGE. HALF OF A TREE DOWN ESTIMATED AT 6 INCHES IN DIAMETER AND LIMBS DOWN ESTIMATED AT 1 INCH IN DIAMETER. Link to comment Share on other sites More sharing options...
Chicago WX Posted August 25, 2014 Share Posted August 25, 2014 Just drove back from Lebanon. Went through the storm, which was pretty bad ass. Almost had to pull over for awhile. Tree limbs and leaves all over the road, just south of LAF. (US 52). Link to comment Share on other sites More sharing options...
A-L-E-K Posted August 25, 2014 Share Posted August 25, 2014 nice pics Link to comment Share on other sites More sharing options...
Gilbertfly Posted August 26, 2014 Share Posted August 26, 2014 2nd round of mammatus of the day....these have the bubbles being tinted by the lowering sun Link to comment Share on other sites More sharing options...
IWXwx Posted August 26, 2014 Author Share Posted August 26, 2014 A nice summertime thunderstorm here this evening. An inch of rain in an hour, some pea sized hail, and a few trees down here and there. Also, a pretty good lightning show, with a lot of cloud-to-ground followed by some nice spiderwebs along the back edge. Link to comment Share on other sites More sharing options...
cyclone77 Posted August 26, 2014 Share Posted August 26, 2014 Picked up 0.60" of rain from today's storm. Strong winds went well north of town, but did get some pea sized hail for a bit. Shot this west of town. This storm uprooted a hard maple tree at my bros place about 4 miles northwest of where I shot this. Link to comment Share on other sites More sharing options...
Chicago WX Posted August 26, 2014 Share Posted August 26, 2014 Crappy shot I took from the golf course (about 30 miles south of LAF) at around 6:30pm...looking north towards the storms in the LAF. Mother ship-ish. Link to comment Share on other sites More sharing options...
Boogieman Posted August 26, 2014 Share Posted August 26, 2014 In the thread title, what is ROF? ROF is the sound one makes when you have like 2500 square foot of deck to stain and the forecast has POP 20-30% every single day. If you decide to stain, it rains... if you don't, the sun comes out even though the forecast says mostly cloudy to overcast. Link to comment Share on other sites More sharing options...
Chitown Storm Posted August 26, 2014 Share Posted August 26, 2014 Great video Cyclone. Very cool to see that form right in front of the cam. Pretty sweet to see the clouds form as they move right at you, then seem to get sucked back all in one motion. Link to comment Share on other sites More sharing options...
Gilbertfly Posted August 26, 2014 Share Posted August 26, 2014 Some storms trying to flare up in northern iowa near the nose of the 850 feed and over a tight theta e gradient.....higher pwats remain to their east/south east Link to comment Share on other sites More sharing options...
vortex Posted August 26, 2014 Share Posted August 26, 2014 NIce pics and video. Quick pic I took tonight at sunset after storms cleared out. Link to comment Share on other sites More sharing options...
cyclone77 Posted August 26, 2014 Share Posted August 26, 2014 ^ Nice. Link to comment Share on other sites More sharing options...
Chicago Storm Posted August 26, 2014 Share Posted August 26, 2014 Shelf cloud with the OFB followed by the awesome sunset filled with mammatus... Was stuck at work and missed out on the photo op though. Link to comment Share on other sites More sharing options...
A-L-E-K Posted August 26, 2014 Share Posted August 26, 2014 yeah, yesterday was photogenic as all get out, great lighting with great cloud features all week looks active with periodic breaks Link to comment Share on other sites More sharing options...
A-L-E-K Posted August 26, 2014 Share Posted August 26, 2014 another classic summer morning with micro-towers dotting the sky and an MCS pushing in from the west. imo, there's definitely an enhanced severe threat downstream into eastern IL into IN where the see text will likely be upgraded. Link to comment Share on other sites More sharing options...
A-L-E-K Posted August 26, 2014 Share Posted August 26, 2014 line of pulsing cu running to my north Link to comment Share on other sites More sharing options...
A-L-E-K Posted August 26, 2014 Share Posted August 26, 2014 line of pulsing cu running to my north Link to comment Share on other sites More sharing options...
Gilbertfly Posted August 26, 2014 Share Posted August 26, 2014 Nice pics guys....great movie cyclone... Some little towers going up...and nice eminating outflows on QC radar Link to comment Share on other sites More sharing options...
King James Posted August 26, 2014 Share Posted August 26, 2014 Link to comment Share on other sites More sharing options...
Gilbertfly Posted August 26, 2014 Share Posted August 26, 2014 Iowa cluster might be ready to right turn a bit with that ouflow charging SSE-SE Or not....facepalm Link to comment Share on other sites More sharing options...
Gilbertfly Posted August 26, 2014 Share Posted August 26, 2014 Little notch in the outflow where it was interrupted by the QC's....noticed the same thing yesterday on that outflow that was moving SW through the QC's... lightning increasing SW of Freeport... frequent strikes in SW Michigan and NW Indiana too with those clusters Link to comment Share on other sites More sharing options...
A-L-E-K Posted August 26, 2014 Share Posted August 26, 2014 warnings starting to fly but we're not going to have anywhere near the kind of instability we saw yesterday...that said, we're sitting under filtered sun for the time being. PWATS are over 2" so we should add to an already impressive August number Link to comment Share on other sites More sharing options...
Geos Posted August 26, 2014 Share Posted August 26, 2014 Been pretty much completely cloudy around here all morning. Storms firing up left and right across Kenosha and Racine counties. Link to comment Share on other sites More sharing options...
Chicago WX Posted August 26, 2014 Share Posted August 26, 2014 MESOSCALE DISCUSSION 1620NWS STORM PREDICTION CENTER NORMAN OK0934 AM CDT TUE AUG 26 2014AREAS AFFECTED...PORTIONS OF NRN IL...NWRN INDIANA...SERN WICONCERNING...SEVERE POTENTIAL...WATCH UNLIKELYVALID 261434Z - 261630ZPROBABILITY OF WATCH ISSUANCE...20 PERCENTSUMMARY...THUNDERSTORMS CROSSING THE REGION THIS MORNING COULDPRODUCE ISOLATED MARGINALLY SVR WIND/HAIL. WHILE CONVECTIVE TRENDSWILL CONTINUE TO BE MONITORED...WW ISSUANCE IS CURRENTLY UNLIKELY.DISCUSSION...THE REMNANTS OF NOCTURNAL CONVECTION THAT EVOLVED FROMERN NEB TO IA HAVE CROSSED THE MS RIVER...PRESENTLY REACHING A LINEFROM ROCKFORD TO MOLINE. CAPPI DATA AT 9 KM INDICATE SUSTENANCE OFONGOING MULTICELL CLUSTERS...WHICH ARE APPROACHING A SFC BOUNDARYDRAPED FROM THE CHICAGO AREA INTO W-CNTRL IL. THE 12Z ILX RAOB ANDSFC OBSERVATIONS SUGGEST RICH BOUNDARY-LAYER MOISTURE IN PROXIMITYTO AND ON THE WARM SIDE OF THIS BOUNDARY -- E.G. LOWEST-100-MB MEANMIXING RATIO AROUND 16 G/KG. DIURNAL HEATING OF THIS MOISTURE WILLBOOST BUOYANCY...WITH MLCAPE LIKELY REACHING 1500-2500 J/KG DURINGTHE NEXT FEW HOURS.ONGOING MULTICELL CLUSTERS WILL APPROACH/CROSS THE BOUNDARY --INCLUDING THE CHICAGO AREA IN THE 1545-1700Z TIME FRAME -- AND ARISK FOR INTENSE UPDRAFTS/DOWNDRAFTS WILL EXIST. LOT AND MKX VWPSSAMPLE 25-30 KT WLYS IN THE 1-4-KM LAYER...WHICH WILL BOLSTERCONVECTIVE MOMENTUM TRANSPORT TO POTENTIALLY YIELD ISOLATED DMGGWIND GUSTS. ISOLATED MARGINALLY SVR HAIL CANNOT BE RULED OUT.HOWEVER...ONLY MODEST MID-LEVEL FLOW/DEEP SHEAR YIELD UNCERTAINTY INA MORE ORGANIZED...SUSTAINED SVR RISK. NEVERTHELESS...CONVECTIVETRENDS WILL CONTINUE TO BE MONITORED...COHEN/MEAD.. 08/26/2014 Link to comment Share on other sites More sharing options...
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