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5/1/09 NOW: TX/OK

Interesting. Almost looks like the storms are splitting off pairs of storms to their north. The storm near Haskell did this earlier. One of its spawn (now near Seymour) has split off a pair of its own. Now the Haskell storm has made a (small) new pair again. What's this about?
 
4.25 inch hail reported now with the Haskel county storm :eek:
That was me, Sam Dienst, Tiffany Meyer and Cassie Wingate...we found it on the side of the road (the 3" was our report too, it missed the car by 10 ft). Sat through mostly golf balls in the RFD. Good fun.
 
Looking at Mark Hills stream it doesn't appear that there is much, if any rotation with this storm, of course I am in the middle of Lake Superior trying to watch it on a data mconnection and it keeps cutting out, but just looking at the features doesn't give me the sense that it is rotating. Can anyone confirm or deny this? It is definitely getting more surface based as I watch. I wish I could tell if it was rotating though....that would say alot about what it is going to do in the next few minutes.
 
The very slow SSE motion that the cell had for the past couple of hours appears to have stopped; current motion looks to be a bit faster to the southeast. I wonder if the storm is now ingesting the slightly drier (still mid 60 F tds) air coming in on SSW winds being sampled by the KDYS and KABI obs. If the storm continues on its current SE path, it may get into better moisture being sampled by the Breckenridge ob. It looks like the previous SSE or due S motion was heavily affected by nearly-continuous development on the west and southwest flank of the storm. This is a common means by which supercells deviate (in terms of storm motion), but it seemed to be particularly strong in/for this storm. The look of how the supercell's motion changed rapidly, along with the overall decreasing size of the reflectivity core, makes me a bit suspicious that the storm may be tanking quickly.

Another supercell is located W of Seymour, and it too is now taking a SE or SSE dive. However, the cold front is approaching from the northwest... My estimate on the cold front speed is ~25 mph in the direction of that storm (which itself is likely to move only 15 mph). As such, it looks like the storm may have cold front undercutting problems within the next 60 minutes. There was a kink in the fineline associated with the cold front just E and SE of FDR.

KDYS VWP is indicating only ~10 kts at 2.5-3 km AGL. Of course, we knew this was a 'weak flow' day, so it's awfully good that the directional turning (a count N of I20 and northward from there) is strong.
 
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The storm south of Seymour has been cycling. In the last 45 min it has twice formed a classic hook shape, accompanied by couplet. How does it look from the ground - anyone on it?
 
The storm south of Seymour has been cycling. In the last 45 min it has twice formed a classic hook shape, accompanied by couplet. How does it look from the ground - anyone on it?

That cell is now in the process of being munched by the cold front, just like all the others. I'd say the show is pretty much over at this point unless something unexpected happens.
 
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