L.B. LaForce Posted May 12, 2014 Share Posted May 12, 2014 Good lord, that thing was a giant cluster&!#$. Big ole HP mess that storm was. Impossible to see hardly anything. Got a few glimpses of the edge of the wedge, but it was mostly a rain-wrapped. Also managed to see more "chase teams" (not tours) with decals, lightbars and antennas than I have in the past 5 years combined. It's getting insane out there. Link to comment Share on other sites More sharing options...
1900hurricane Posted May 12, 2014 Share Posted May 12, 2014 Well I could be wrong on this idea, but since most of the storm was actually on the cold side of the boundary (with northerly winds to the north of it) aside from the inflow region, since the RFD was being sourced from the colder air on that side of the boundary, instead of spurring on long-lived tornadoes, the relatively colder (and thus heavier/denser) air in the RFD (as compared to a storm further south) may have made it more effective at leading to occlusion/cutting off of the low level circulation/inflow. Again, this explanation might not be correct (feel free to correct me if it is), as my knowledge of these processes still needs some work, but the northerly winds north of the warm front intrigued me in this case. Obviously, the fact that it was relatively HP from the start had a say in this as well. Also there is a report of a house destroyed to the basement/foundation earlier near Sutton from the first large tornado that cell produced. Sounds like a good reason to me. I'm pretty sure I've read a paper stating that the closer in character that the RFD is to the inflow air (similar temps and dewpoints), the more favorable it is for stronger and longer lived tornadoes. I'll have to see if I can dig that one back out/find it again. Link to comment Share on other sites More sharing options...
Derecho! Posted May 12, 2014 Share Posted May 12, 2014 Pretty good warned couplet east of Greensburg.... Link to comment Share on other sites More sharing options...
gabel23 Posted May 12, 2014 Share Posted May 12, 2014 Elkhorn, NE is likely in more danger now than Omaha. The Omaha portion of the cell appears to be gusting out... Buddy of mine recorded this coming into the Elkorn area. Pretty impressive to say the least. https://www.facebook.com/photo.php?v=10100104603920026&set=vb.32502881&type=2&theater¬if_t=video_reply Link to comment Share on other sites More sharing options...
andyhb Posted May 12, 2014 Share Posted May 12, 2014 Apparently this was the tornado near Sutton, NE via Jim Cantore. Link to comment Share on other sites More sharing options...
messier77 Posted May 12, 2014 Share Posted May 12, 2014 Good lord, that thing was a giant cluster&!#$. Big ole HP mess that storm was. Impossible to see hardly anything. Got a few glimpses of the edge of the wedge, but it was mostly a rain-wrapped. Also managed to see more "chase teams" (not tours) with decals, lightbars and antennas than I have in the past 5 years combined. It's getting insane out there. I always kind of knew it was getting ridiculous with all the chasers and chase teams but it never truly hot home until getting stuck in the 3-mile long chaser traffic jam with a tornado bearing down near Kingfisher, OK on 5/19/2010. All sorts of "chase teams" drove on the shoulders and in the wrong lanes, nearly causing accidents. Now I'm extremely cognizant of the chaser hordes and especially chase teams with logos and light bars and sometimes try to steer clear of the mess and go for "lesser" structure storms. Link to comment Share on other sites More sharing options...
andyhb Posted May 12, 2014 Share Posted May 12, 2014 Two tornado warnings in KS now with the semi discrete supercells there, although I find it kind of funny those went tornado warned as soon as they entered ICT's CWA and their signatures don't look quite as good as some of the supercells earlier in DDC's CWA. Link to comment Share on other sites More sharing options...
gabel23 Posted May 12, 2014 Share Posted May 12, 2014 Apparently this was the tornado near Sutton, NE via Jim Cantore. Same super cell that went thru lincoln and omaha. Cyclic super cell for sure. Link to comment Share on other sites More sharing options...
gabel23 Posted May 12, 2014 Share Posted May 12, 2014 Dominator by York, NE. https://www.facebook.com/photo.php?v=10152413701699169&set=vb.166805519168&type=2&theater Link to comment Share on other sites More sharing options...
Thunder Road Posted May 12, 2014 Share Posted May 12, 2014 Buddy of mine recorded this coming into the Elkorn area. Pretty impressive to say the least. https://www.facebook.com/photo.php?v=10100104603920026&set=vb.32502881&type=2&theater¬if_t=video_reply Can't view it. Privacy settings? Link to comment Share on other sites More sharing options...
jcwxguy Posted May 12, 2014 Share Posted May 12, 2014 McPherson cell concernes me - spotter confirmed tornado , (where my parents live) Link to comment Share on other sites More sharing options...
SouthernNJ Posted May 12, 2014 Share Posted May 12, 2014 The Orange City-Sheldon circulation had a couple of tornadoes reported with before it weakened. Now, the Sterling-Inman storm has a couple reported in the Wichita CWA. Link to comment Share on other sites More sharing options...
Hvward Posted May 12, 2014 Share Posted May 12, 2014 McPherson cell concernes me - spotter confirmed tornado , (where my parents live) I hope you gave them a ring. That cell looks shelter worthy to me. Hopefully it lifts before it reaches McPherson, or goes south. Link to comment Share on other sites More sharing options...
gabel23 Posted May 12, 2014 Share Posted May 12, 2014 Can't view it. Privacy settings? Crap I thought I would be able to show that. I'll try another way, it's off of facebook. Link to comment Share on other sites More sharing options...
thewxmann Posted May 12, 2014 Share Posted May 12, 2014 Well I could be wrong on this idea, but since most of the storm was actually on the cold side of the boundary (with northerly winds to the north of it) aside from the inflow region, since the RFD was being sourced from the colder air on that side of the boundary, instead of spurring on long-lived tornadoes, the relatively colder (and thus heavier/denser) air in the RFD (as compared to a storm further south) may have made it more effective at leading to occlusion/cutting off of the low level circulation/inflow. Again, this explanation might not be correct (feel free to correct me if it is), as my knowledge of these processes still needs some work, but the northerly winds north of the warm front intrigued me in this case. Obviously, the fact that it was relatively HP from the start had a say in this as well. Also there is a report of a house destroyed to the basement/foundation earlier near Sutton from the first large tornado that cell produced. I agree with this. The S NE supercell leaned on the outflow-dominant/HP side of the supercell spectrum all day. This is my first time using a high-res radar to track the storms, and it definitely seemed that in the beginning a lot of the RFD's were divergent in nature... an indicator that the RFD air was of low theta-e. Further east as the supercell separated itself a bit more from the cold air and hit a lower LCL environment, the rotational couplets tightened and we saw the potential of the environment be realized. Most of these tornadoes however were short-lived because the RFD continued to surge outward with every cycle before a new couplet formed on the inflow/RFD shear axis. Pretty classic Plains cyclic supercell behavior. Overall though, none of this was unexpected. Additionally the HRRR was outstanding. For many of its runs it had a monster supercell going through SE NE before lining out near Omaha around 0Z. Which is what exactly happened. Absolutely spot-on. Link to comment Share on other sites More sharing options...
andyhb Posted May 12, 2014 Share Posted May 12, 2014 Basehunters video from today, second part looks like a very, very large tornado (although it just might be the very low base along with a tornado) Link to comment Share on other sites More sharing options...
JoMo Posted May 12, 2014 Share Posted May 12, 2014 McPherson cell concernes me - spotter confirmed tornado , (where my parents live) AT 956 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR MCPHERSON... AND MOVING NORTHEAST AT 30 MPH. Link to comment Share on other sites More sharing options...
andyhb Posted May 12, 2014 Share Posted May 12, 2014 Looks like quite a strong embedded circulation west of Des Moines. Link to comment Share on other sites More sharing options...
jcwxguy Posted May 12, 2014 Share Posted May 12, 2014 THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A * TORNADO WARNING FOR... MCPHERSON COUNTY IN CENTRAL KANSAS... * UNTIL 1030 PM CDT * AT 956 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR MCPHERSON... AND MOVING NORTHEAST AT 30 MPH. THIS WARNING REPLACES THE PREVIOUSTORNADO WARNING FOR MCPHERSON COUNTY. Link to comment Share on other sites More sharing options...
jcwxguy Posted May 12, 2014 Share Posted May 12, 2014 AT 956 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR MCPHERSON... AND MOVING NORTHEAST AT 30 MPH. on the phone with them Link to comment Share on other sites More sharing options...
andyhb Posted May 12, 2014 Share Posted May 12, 2014 That's a pretty incredible embedded supercell there in IA, strong tornado potential with it. Link to comment Share on other sites More sharing options...
SouthernNJ Posted May 12, 2014 Share Posted May 12, 2014 AT 956 PM CDT...A CONFIRMED TORNADO WAS LOCATED NEAR MCPHERSON... AND MOVING NORTHEAST AT 30 MPH. If the tornado remained down, it would have crossed the southern portion of the city between 955 and 1005 PM. Link to comment Share on other sites More sharing options...
nwburbschaser Posted May 12, 2014 Share Posted May 12, 2014 Looks like quite a strong embedded circulation west of Des Moines. It looked quite strong for a scan. I stopped in Stuart, IA for the night which is just south of that circulation. Link to comment Share on other sites More sharing options...
andyhb Posted May 12, 2014 Share Posted May 12, 2014 It looked quite strong for a scan. I stopped in Stuart, IA for the night which is just south of that circulation. I believe it's actually the same updraft that was in the big cyclic HP in NE earlier. Also that more isolated cell SE of Omaha with the severe warning has quite the meso. Link to comment Share on other sites More sharing options...
JoMo Posted May 12, 2014 Share Posted May 12, 2014 If the tornado remained down, it would have crossed the southern portion of the city between 955 and 1005 PM. Yeah the FD reported a tornado 1 mile SE of the city. Link to comment Share on other sites More sharing options...
jcwxguy Posted May 12, 2014 Share Posted May 12, 2014 Yeah the FD reported a tornado 1 mile SE of the city. parents are safe, but there is a refinery there and my dads church then walmart (places from sw to ne along that path where it went) looks like there were 3 seperate reports of the tornado Link to comment Share on other sites More sharing options...
JoMo Posted May 12, 2014 Share Posted May 12, 2014 parents are safe, but there is a refinery there and my dads church then walmart (places from sw to ne along that path where it went) Scanner feed from there... so far I've only heard of power lines down or well, burning a tree limb or something: http://www.broadcastify.com/listen/feed/16550 Link to comment Share on other sites More sharing options...
wxmeddler Posted May 12, 2014 Share Posted May 12, 2014 Bart Comstock got too close.. https://www.youtube.com/watch?v=LkXWre5y4Ak Link to comment Share on other sites More sharing options...
thewxmann Posted May 12, 2014 Share Posted May 12, 2014 Scanner feed from there... so far I've only heard of power lines down or well, burning a tree limb or something: http://www.broadcastify.com/listen/feed/16550 The rotational couplet didn't seem that strong from the ICT radar... hopefully it wasn't too bad. Link to comment Share on other sites More sharing options...
SouthernNJ Posted May 12, 2014 Share Posted May 12, 2014 Also that more isolated cell SE of Omaha with the severe warning has quite the meso. Decent signature near Red Oak, would not be surprised to see it get warned. Link to comment Share on other sites More sharing options...
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