The NWS Storm Prediction Center has issued a

• Tornado Watch for portions of
  Southern and Eastern Iowa
  Northwest Illinois
  Far northern Missouri
• Effective this Thursday morning and afternoon from 730 AM until
  300 PM CDT.
• Primary threats include…
  A few tornadoes and a couple intense tornadoes possible
  Widespread damaging winds likely with isolated significant gusts
  to 80 mph possible
  Scattered large hail and isolated very large hail events to 2
  inches in diameter possible

SUMMARY…A well-organized and intense bowing linear system will
continue eastward this morning with the potential for widespread
damaging winds and potentially an increasing tornado risk, with the
intense convective line as well as any storms developing ahead of
it.

The tornado watch area is approximately along and 90 statute miles
north and south of a line from Knoxville IA to 40 miles east
southeast of Moline IL. For a complete depiction of the watch see
the associated watch outline update (WOUS64 KWNS WOU1).

PRECAUTIONARY/PREPAREDNESS ACTIONS…

REMEMBER…A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.

&&

OTHER WATCH INFORMATION…CONTINUE…WW 310…

AVIATION…Tornadoes and a few severe thunderstorms with hail
surface and aloft to 2 inches. Extreme turbulence and surface wind
gusts to 70 knots. A few cumulonimbi with maximum tops to 600. Mean
storm motion vector 27045.