June 13 TWISTEX Update

Status: Awaiting Next Deployment
Location: Terril, IA

Although slight chances of severe weather are in the forecast for the next couple of days, the threat is not high enough to warrant deployment by the TWISTEX team. Scattered severe thunderstorms are possible throughout much of the plains states, with the best threat actually coming in the southern plains for the next 2 days. Here in Iowa, would expect western Iowa to see thunderstorms today with the system slowing progressing for tomorrow. Western and central Iowa could see thunderstorms on Thursday then, although possibilities of severe weather on either day are fairly low.

Beyond this system we head into zonal flow over the plains until our next trough moves in. This is expected to happen by the end of the weekend, Sunday already showing up on the SPC day 4-8 outlook along with the following days as it moves a front southeastward. Expect TWISTEX will be watching this closely for deployment opportunities, with at least the upper level winds becoming favorable. Sunday looks to be Dakotas with the best chance, moving into Iowa/Minnesota and possibly surroundings on Monday. Tuesdays' threat then shifts southeastward again, covering areas near the Mississippi River. Details on the threats are going to have to be worked out in the next couple of days, but this is going to be our next deployment opportunity as of the way things look in the near future.