

610 

WWUS20 KWNS 290138

SEL3

SPC WW 290138

ILZ000-LMZ000-290700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 73

NWS Storm Prediction Center Norman OK

840 PM CDT Sat Mar 28 2020



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Northern and central Illinois

  Lake Michigan



* Effective this Saturday night and Sunday morning from 840 PM

  until 200 AM CDT.



* Primary threats include...

  A couple intense tornadoes possible

  Scattered damaging wind gusts to 60 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Low-topped arcing line of thunderstorms will spread

rapidly east-northeast across the rest of northern and central

Illinois through at least late evening before eventually weakening

overnight.



The tornado watch area is approximately along and 65 statute miles

east and west of a line from 15 miles south of Decatur IL to 10

miles northeast of Rockford IL. For a complete depiction of the

watch see the associated watch outline update (WOUS64 KWNS WOU3).



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...This tornado watch replaces tornado

watch number 69. Watch number 69 will not be in effect after 840

PM CDT. CONTINUE...WW 70...WW 71...WW 72...



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

surface and aloft to 1.5 inches. Extreme turbulence and surface wind

gusts to 50 knots. A few cumulonimbi with maximum tops to 350. Mean

storm motion vector 25045.



...Grams

