

160 

WWUS20 KWNS 141721

SEL6

SPC WW 141721

ILZ000-INZ000-LMZ000-142200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 26

NWS Storm Prediction Center Norman OK

1220 PM CDT Thu Mar 14 2019



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Northeastern Illinois

  Extreme northwestern Indiana

  Lake Michigan



* Effective this Thursday afternoon from 1220 PM until 500 PM

  CDT.



* Primary threats include...

  A few tornadoes likely with a couple intense tornadoes possible

  Isolated damaging wind gusts to 70 mph possible

  Isolated large hail events to 1 inch in diameter possible



SUMMARY...A broken arc of low-topped supercells is expected this

afternoon across northeastern Illinois.  The storm environment will

favor a threat for tornadoes, one or two of which could be strong,

along with isolated large hail and damaging gusts.  The storms will

likely peak in intensity by 1-3 pm CDT, and could affect the Chicago

metropolitan area.



The tornado watch area is approximately along and 50 statute miles

east and west of a line from 85 miles north northeast of Marseilles

IL to 25 miles east southeast of Bloomington IL. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU6).



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 24...WW 25...



AVIATION...Tornadoes and a few severe thunderstorms with hail

surface and aloft to 1 inch. Extreme turbulence and surface wind

gusts to 60 knots. A few cumulonimbi with maximum tops to 400. Mean

storm motion vector 23050.



...Thompson

