Chicago Storm Posted May 29, 2011 Share Posted May 29, 2011 Link to comment Share on other sites More sharing options...
cyclone77 Posted May 29, 2011 Share Posted May 29, 2011 WAA wing developing south of the QC. Here we go. Link to comment Share on other sites More sharing options...
cyclone77 Posted May 29, 2011 Share Posted May 29, 2011 84kts at 9500' north of Ottumwa. Link to comment Share on other sites More sharing options...
Powerball Posted May 29, 2011 Share Posted May 29, 2011 Yeah that squall line out in Iowa has that look to it like it's gonna rip for hours. Developing WAA wing south of the QC as well. Things could get real interesting around here in another hour or two. Severe T'Storm Watch in effect for all of Northern Illinois, far Western Indiana and far SE Iowa until 4:00 PM. Link to comment Share on other sites More sharing options...
SEMIweather Posted May 29, 2011 Share Posted May 29, 2011 We need to merge the two threads, or decide which one to post in. Link to comment Share on other sites More sharing options...
SEMIweather Posted May 29, 2011 Share Posted May 29, 2011 We need to merge the two threads, or decide which one to post in. Link to comment Share on other sites More sharing options...
Powerball Posted May 29, 2011 Share Posted May 29, 2011 I suspect they may just upgrade a narrow corridor to a moderate risk for wind. Link to comment Share on other sites More sharing options...
SEMIweather Posted May 29, 2011 Share Posted May 29, 2011 DISCUSSION...AN ORGANIZING LINE OF THUNDERSTORMS OVER IA IS FORECAST TO ACCELERATE AND TRACK EAST-NORTHEASTWARD ACROSS THE WATCH AREA TODAY. RAPID LOW LEVEL DESTABILIZATION AHEAD OF THE STORMS...COUPLED WITH INCREASING MESOSCALE ORGANIZATION...WILL POSE A RISK OF A LONG-LIVED BOW ECHO AND RESULTING DERECHO. STORMS MAY AFFECT THE CHI METRO AREA AS EARLY AS 18Z. Link to comment Share on other sites More sharing options...
SEMIweather Posted May 29, 2011 Share Posted May 29, 2011 I suspect they may just upgrade a narrow corridor to a moderate risk for wind. I agree. Link to comment Share on other sites More sharing options...
Stebo Posted May 29, 2011 Share Posted May 29, 2011 We need to merge the two threads, or decide which one to post in. Yeah like not post in this one... lol Link to comment Share on other sites More sharing options...
SEMIweather Posted May 29, 2011 Share Posted May 29, 2011 DISCUSSION...AN ORGANIZING LINE OF THUNDERSTORMS OVER IA IS FORECAST TO ACCELERATE AND TRACK EAST-NORTHEASTWARD ACROSS THE WATCH AREA TODAY. RAPID LOW LEVEL DESTABILIZATION AHEAD OF THE STORMS...COUPLED WITH INCREASING MESOSCALE ORGANIZATION...WILL POSE A RISK OF A LONG-LIVED BOW ECHO AND RESULTING DERECHO. STORMS MAY AFFECT THE CHI METRO AREA AS EARLY AS 18Z. Link to comment Share on other sites More sharing options...
Powerball Posted May 29, 2011 Share Posted May 29, 2011 Current Satellite Image... Link to comment Share on other sites More sharing options...
Stebo Posted May 29, 2011 Share Posted May 29, 2011 This thing is really getting going. SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 856 AM CDT SUN MAY 29 2011 IAC087-101-107-177-183-291430- /O.CON.KDVN.SV.W.0057.000000T0000Z-110529T1430Z/ WASHINGTON IA-VAN BUREN IA-KEOKUK IA-JEFFERSON IA-HENRY IA- 856 AM CDT SUN MAY 29 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 AM CDT FOR WESTERN HENRY...JEFFERSON...KEOKUK...NORTHERN VAN BUREN AND WASHINGTON COUNTIES... AT 850 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH...AND QUARTER SIZE HAIL. THESE STORMS WERE LOCATED APPROXIMATELY ALONG A LINE EXTENDING FROM KESWICK TO 17 MILES WEST OF SELMA...OR ALONG A LINE EXTENDING FROM 7 MILES NORTHWEST OF SIGOURNEY TO 16 MILES SOUTH OF OTTUMWA...MOVING EAST AT 40 MPH. Link to comment Share on other sites More sharing options...
SEMIweather Posted May 29, 2011 Share Posted May 29, 2011 Link to comment Share on other sites More sharing options...
Thundersnow12 Posted May 29, 2011 Share Posted May 29, 2011 couldn't of asked for anything better to wake up to....well I could of lol this thing is going to rick roll northern IL later on, I will be heading out to watch this sucker. Link to comment Share on other sites More sharing options...
cyclone77 Posted May 29, 2011 Share Posted May 29, 2011 couldn't of asked for anything better to wake up to....well I could of lol Haha. Yeah it looks like a classic high wind event for northern Illinois. It's foggy here as well. Link to comment Share on other sites More sharing options...
Stebo Posted May 29, 2011 Share Posted May 29, 2011 couldn't of asked for anything better to wake up to....well I could of lol this thing is going to rick roll northern IL later on, I will be heading out to watch this sucker. Yeah I'll say it has a 75kt Mid Level Jet punching into its backside and the LLJ of 35-45kt is quickly catching up to it from the South. Link to comment Share on other sites More sharing options...
outflow Posted May 29, 2011 Share Posted May 29, 2011 Yeah I dont think this thing falls apart through N IL. The only concern I'd have is missing both Chicago and Detroit to the south. normally i would say both chi. and det. would be on the northern edge as the mcs turns se to follow the instablity gradient, but with such a strong cap moving in from the south this thing just may move more ene then what you would normally see with mcs activity around here. Link to comment Share on other sites More sharing options...
Chicago Storm Posted May 29, 2011 Share Posted May 29, 2011 0855 AM TSTM WND GST OSKALOOSA AIRPORT 41.23N 92.49W 05/29/2011 M69 MPH MAHASKA IA AWOS Link to comment Share on other sites More sharing options...
Thundersnow12 Posted May 29, 2011 Share Posted May 29, 2011 Haha. Yeah it looks like a classic high wind event for northern Illinois. It's foggy here as well. only thing I'm worried about is visibility but should be ok. Joe you heading out? Link to comment Share on other sites More sharing options...
Stebo Posted May 29, 2011 Share Posted May 29, 2011 0855 AM TSTM WND GST OSKALOOSA AIRPORT 41.23N 92.49W 05/29/2011 M69 MPH MAHASKA IA AWOS KOOA 291355Z AUTO 35023G60KT 310V010 1/2SM +RA OVC002 17/15 A2981 RMK AO2 P0072 Btw I love how its 60kt out of the North talk about an unusual direction with an Eastward moving complex. Not to mention the .72 in the hour, which is something many areas in N. IL/S. MI do not need. Link to comment Share on other sites More sharing options...
SEMIweather Posted May 29, 2011 Share Posted May 29, 2011 New warning out for the line mentions Ping Pong Ball sized hail and 70 mph winds. Link to comment Share on other sites More sharing options...
Chicago Storm Posted May 29, 2011 Share Posted May 29, 2011 only thing I'm worried about is visibility but should be ok. Joe you heading out? I'll probably head a bit southwest away out into the farm lands once it gets closer. Link to comment Share on other sites More sharing options...
Powerball Posted May 29, 2011 Share Posted May 29, 2011 NWS Cleveland, Chicago and Northern Indiana added a severe mention to their grids. I suspect the other branches will follow suit soon. Oh, and DTX bumped up our highs a couple of degrees with the extra sunshine today. Link to comment Share on other sites More sharing options...
kab2791 Posted May 29, 2011 Share Posted May 29, 2011 Sitting under full hazy sunshine so a at least we should continue to destabilize nicely. Was glad to see any overnight convection remained to the south and moved out of the region. Healthy looking bowline structure already. Link to comment Share on other sites More sharing options...
janetjanet998 Posted May 29, 2011 Share Posted May 29, 2011 SPC needs a moderate risk for N IL This will produce widespread wind damage and isolated tornadoes Link to comment Share on other sites More sharing options...
cyclone77 Posted May 29, 2011 Share Posted May 29, 2011 SPC needs a moderate risk for N IL This will produce widespread wind damage and isolated tornadoes Agreed. Was surprised they didn't at least upgrade the wind to 30% hatched at 13z. Link to comment Share on other sites More sharing options...
Stebo Posted May 29, 2011 Share Posted May 29, 2011 SPC needs a moderate risk for N IL This will produce widespread wind damage and isolated tornadoes Yeah I think that there will definitely be a moderate risk by 1630 update. Link to comment Share on other sites More sharing options...
kab2791 Posted May 29, 2011 Share Posted May 29, 2011 Yeah, I'm wondering how the 1630Z package will handle this if this continues to be a well developed bowline or derecho by then. I'd imagine a moderate risk for wind being possible for N IL, N IN and at least SW lower MI. SPC needs a moderate risk for N IL Link to comment Share on other sites More sharing options...
Thundersnow12 Posted May 29, 2011 Share Posted May 29, 2011 I'll probably head a bit southwest away out into the farm lands once it gets closer. I will be doing the same thing, west of 47 and north of 30 is usually a pretty good spot. Link to comment Share on other sites More sharing options...
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