

949 

WWUS20 KWNS 110031

SEL6

SPC WW 110031

INZ000-MIZ000-110500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 506

NWS Storm Prediction Center Norman OK

735 PM EST Tue Nov 10 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Indiana

  Lower Michigan



* Effective this Tuesday night from 735 PM until Midnight EST.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...A fast-moving squall line will continue to race

northeastward this evening. While the overall intensity of the line

may gradually diminish, the fast forward motion and strengthening

winds in the lower part of the atmosphere will support the continued

possibility of isolated damaging wind gusts across parts of Lower

Michigan and far northern Indiana.



The severe thunderstorm watch area is approximately along and 35

statute miles east and west of a line from 95 miles north northeast

of Grand Rapids MI to 25 miles south of South Bend IN. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU6).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A Severe Thunderstorm Watch means conditions are

favorable for 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. Severe thunderstorms can and occasionally do produce

tornadoes.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 505...



AVIATION...A few severe thunderstorms with hail surface and aloft to

0.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 400. Mean storm motion vector

23045.



...Guyer

