• After witnessing the continued decrease of involvement in the SpotterNetwork staff in serving SN members with troubleshooting issues recently, I have unilaterally decided to terminate the relationship between SpotterNetwork's support and Stormtrack. I have witnessed multiple users unable to receive support weeks after initiating help threads on the forum. I find this lack of response from SpotterNetwork officials disappointing and a failure to hold up their end of the agreement that was made years ago, before I took over management of this site. In my opinion, having Stormtrack users sit and wait for so long to receive help on SpotterNetwork issues on the Stormtrack forums reflects poorly not only on SpotterNetwork, but on Stormtrack and (by association) me as well. Since the issue has not been satisfactorily addressed, I no longer wish for the Stormtrack forum to be associated with SpotterNetwork.

    I apologize to those who continue to have issues with the service and continue to see their issues left unaddressed. Please understand that the connection between ST and SN was put in place long before I had any say over it. But now that I am the "captain of this ship," it is within my right (nay, duty) to make adjustments as I see necessary. Ending this relationship is such an adjustment.

    For those who continue to need help, I recommend navigating a web browswer to SpotterNetwork's About page, and seeking the individuals listed on that page for all further inquiries about SpotterNetwork.

    From this moment forward, the SpotterNetwork sub-forum has been hidden/deleted and there will be no assurance that any SpotterNetwork issues brought up in any of Stormtrack's other sub-forums will be addressed. Do not rely on Stormtrack for help with SpotterNetwork issues.

    Sincerely, Jeff D.

Radar grabs from the 4/13/06 Iowa City Tornado?

RE: April 13 Eastern IA storms

I have a collection of data (SFC, UA, profiler, radar, satellite, soundings, etc) from that day. PM me and I'll zip it and send it. BTW, I live in Iowa City. The Iowa City tornado path started about 1/4 mile from my house. I watched the nighttime tornado as it tore through the city, as well as an earlier tornado west of Cedar Rapids.

This is a very interesting day to do a case study of. Basically, the synoptic setup had a WF well to the north, along the IA/MN border. A look at morning data suggested that that area would be the chase target for afternoon storms. Morning dew points were very low throughout IA - in the 40's in all but the southwest part of the state. As the day progressed, a narrow wedge of rich SFC moisture surged northeast, reaching central IA by mid-afternoon. Meanwhile, a compact mid-level disturbance lifted to the NE out of KS - examine the profiler data. Models based on 12Z data underestimated the strength of this feature. Storms fired in central IA by late afternoon, and moved E towards eastern IA. SFC flow became increasingly backed in response to the shortwave. The moisture arrived in Eastern IA just an hour or two prior to the arrival of the storms, and LCL’s dropped rapidly after 00Z (00Z DVN sounding – only 60 miles to the east – still indicated poor LLVL moisture and an LCL of nearly 2000m AGL)! And that was only 90 minutes before the tornado hit IC.

[FONT=&quot]- bill[/FONT]
 
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