SPC Tornado Watch 575



WW 575 TORNADO IL IN MO 130125Z – 130800Z

WW 0575 Image

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 575
NWS Storm Prediction Center Norman OK
825 PM CDT Mon Aug 12 2019

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Central Illinois
  Western and central Indiana
  Extreme eastern Missouri

* Effective this Monday night and Tuesday morning from 825 PM
  until 300 AM CDT.

* Primary threats include...
  A couple tornadoes possible
  Scattered damaging winds likely with isolated significant gusts
    to 75 mph possible
  Isolated large hail events to 1.5 inches in diameter possible

SUMMARY...Increasingly focus band of convection has formed over
central IL, along with isolated, potentially severe convection
northwest of STL, all moving into a favorable environment for
supercells and bow echoes.  Activity should progress
east-southeastward over the watch area, with all severe types
possible.

The tornado watch area is approximately along and 45 statute miles
north and south of a line from 60 miles northwest of Alton IL to 30
miles south southeast of Indianapolis IN. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU5).

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.

&&

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 1.5 inches. Extreme turbulence and surface wind
gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean
storm motion vector 28030.

...Edwards

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