Wednesday, September 2, 2026

Tornado Watch Number 645

 



The watch will be in effect until 11:00 PM

The watch means tornadoes are possible in and near the watch area. Think about and go over your emergency plans. Be ready to act quickly if a warning is issued or you suspect a tornado is approaching.

NWS statement

“SEL5

 

   URGENT - IMMEDIATE BROADCAST REQUESTED

   Tornado Watch Number 645

   NWS Storm Prediction Center Norman OK

   440 PM EDT Wed Sep 2 2026

 

   The NWS Storm Prediction Center has issued a

 

   * Tornado Watch for portions of

     Western and Central New York

     Lake Erie

     Lake Ontario

 

   * Effective this Wednesday afternoon and evening from 440 PM

     until 1100 PM EDT.

 

   * Primary threats include...

     A few tornadoes and a couple intense tornadoes possible

     Scattered damaging wind gusts to 70 mph likely

     Scattered large hail and isolated very large hail events to 2

       inches in diameter possible

 

   SUMMARY...Supercell thunderstorms should pose some threat for large

   hail and perhaps a few tornadoes as they move eastward late this

   afternoon and evening across parts of western and central NY. A

   strong tornado appears possible if thunderstorms can remain at least

   semi-discrete this evening. Thunderstorms will likely grow upscale

   into a bowing cluster later this evening, with a greater threat for

   scattered to numerous severe/damaging winds up to 60-70 mph.

 

   The tornado watch area is approximately along and 85 statute miles

   east and west of a line from 35 miles west northwest of Watertown NY

   to 60 miles east of Jamestown NY. 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.

 

   &&

 

   OTHER WATCH INFORMATION...CONTINUE...WW 643...WW 644...”