Severe Thunderstorm Watch Number 489

 

SEL9

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 489
   NWS Storm Prediction Center Norman OK
   825 PM EDT Tue Jul 14 2026

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Southwest Maine
     Central and Northern New Hampshire
     Northern New York
     Northern Vermont

   * Effective this Tuesday night and Wednesday morning from 825 PM
     until 400 AM EDT.

   * Primary threats include...
     Scattered damaging wind gusts to 70 mph likely
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     A tornado or two possible

   SUMMARY...Thunderstorms are forecast to develop and intensify this
   evening across the Watch and also move into the Watch area from the
   west.  A couple of supercells are possible with large hail and
   severe gusts accompanying these storms.  A tornado is also possible.
   Later tonight, additional storms will probably evolve into a small
   thunderstorm cluster with large hail and severe gusts the main
   hazards with this activity.

   The severe thunderstorm watch area is approximately along and 55
   statute miles north and south of a line from 25 miles west northwest
   of Massena NY to 40 miles east of Mount Washington NH. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU9).

   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 488...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 400. Mean storm motion vector
   30040.

   ...Smith