Click-to-scroll-up Image
Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left  
  navigation bar end cap


 
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Severe Thunderstorm Watch 489
< Previous WW         Next WW >
  | | | | |  
WW0489 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High Moderate
Severe Hail 2"+ Hail
Low Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL9

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 489
   NWS Storm Prediction Center Norman OK
   1110 AM EDT Sun Jun 30 2024

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Connecticut
     Northern Delaware
     Massachusetts
     New Jersey
     Southern New York
     Central and Eastern Pennsylvania
     Rhode Island
     Coastal Waters

   * Effective this Sunday morning and evening from 1110 AM until
     700 PM EDT.

   * Primary threats include...
     Widespread damaging winds likely with isolated significant gusts
       to 75 mph possible
     Isolated large hail events to 1.5 inches in diameter possible

   SUMMARY...A mix of thunderstorm clusters and supercells should pose
   a threat for numerous to widespread severe/damaging winds as they
   move eastward this afternoon and evening. Peak wind gusts should
   generally range around 60-70 mph, with isolated gusts perhaps
   reaching up to 75 mph. Occasional hail around 1-1.5 inches in
   diameter may also occur with any sustained supercell.

   The severe thunderstorm watch area is approximately along and 100
   statute miles east and west of a line from 35 miles north northwest
   of Worcester MA to 30 miles west southwest of Philadelphia PA. 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.

   &&

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   27035.

   ...Gleason
Top of Page/Status Messages for this watch/All Current Watches/Forecast Products/Home
Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us
NOAA / National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
120 David L. Boren Blvd.
Norman, OK 73072 U.S.A.
spc.feedback@noaa.gov
Page last modified: June 30, 2024		 Disclaimer
Information Quality
Help
Glossary 		Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities