Storm Prediction Center Severe Thunderstorm Watch 260

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

   SEL0

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 260
   NWS Storm Prediction Center Norman OK
   1005 AM EDT Fri May 16 2025

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Delaware
     Far Eastern Maryland
     New Jersey
     Far Eastern Pennsylvania
     Coastal Waters

   * Effective this Friday morning and afternoon from 1005 AM until
     500 PM EDT.

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

   SUMMARY...Thunderstorms continue to strengthen as they move into
   more of eastern PA and eastern MD. Destabilization is expected
   downstream, with the resulting combination of instability and shear
   supportive of supercells capable of large hail and damaging gusts.

   The severe thunderstorm watch area is approximately along and 55
   statute miles east and west of a line from 15 miles northwest of
   Trenton NJ to 45 miles south of Dover DE. For a complete depiction
   of the watch see the associated watch outline update (WOUS64 KWNS
   WOU0).

   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 259...

   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 500. Mean storm motion vector
   27035.

   ...Mosier

   SEL0

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 260
   NWS Storm Prediction Center Norman OK
   1005 AM EDT Fri May 16 2025

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Delaware
     Far Eastern Maryland
     New Jersey
     Far Eastern Pennsylvania
     Coastal Waters

   * Effective this Friday morning and afternoon from 1005 AM until
     500 PM EDT.

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

   SUMMARY...Thunderstorms continue to strengthen as they move into
   more of eastern PA and eastern MD. Destabilization is expected
   downstream, with the resulting combination of instability and shear
   supportive of supercells capable of large hail and damaging gusts.

   The severe thunderstorm watch area is approximately along and 55
   statute miles east and west of a line from 15 miles northwest of
   Trenton NJ to 45 miles south of Dover DE. For a complete depiction
   of the watch see the associated watch outline update (WOUS64 KWNS
   WOU0).

   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 259...

   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 500. Mean storm motion vector
   27035.

   ...Mosier

Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.

   SAW0 
   WW 260 SEVERE TSTM DE MD NJ PA CW 161405Z - 162100Z
   AXIS..55 STATUTE MILES EAST AND WEST OF LINE..
   15NW TTN/TRENTON NJ/ - 45S DOV/DOVER DE/
   ..AVIATION COORDS.. 50NM E/W /32ESE ETX - 8NNE SBY/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.

   LAT...LON 40437397 38477444 38477649 40437606

   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU0.

Watch 260 Status Report Messages:

STATUS REPORT #1 ON WW 260

VALID 161530Z - 161640Z

THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.

..GRAMS..05/16/25

ATTN...WFO...PHI...

&&

STATUS REPORT FOR WS 260 

SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS 

DEC001-003-005-161640-

DE 
.    DELAWARE COUNTIES INCLUDED ARE

KENT		     NEW CASTLE 	 SUSSEX 	     
$$


MDC011-029-035-041-161640-

MD 
.    MARYLAND COUNTIES INCLUDED ARE

CAROLINE	     KENT		 QUEEN ANNE'S	     
TALBOT		     
$$


NJC001-005-007-009-011-015-019-021-023-025-029-033-035-041-
161640-

NJ 
.    NEW JERSEY COUNTIES INCLUDED ARE

ATLANTIC	     BURLINGTON 	 CAMDEN 	     
CAPE MAY	     CUMBERLAND 	 GLOUCESTER	     
HUNTERDON	     MERCER		 MIDDLESEX	     
MONMOUTH	     OCEAN		 SALEM		     
SOMERSET	     WARREN		 
$$


PAC011-017-025-029-045-077-091-095-101-161640-

PA 
.    PENNSYLVANIA COUNTIES INCLUDED ARE

BERKS		     BUCKS		 CARBON 	     
CHESTER 	     DELAWARE		 LEHIGH 	     
MONTGOMERY	     NORTHAMPTON	 PHILADELPHIA	     
$$


ANZ430-431-450-451-452-453-454-455-161640-

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

DELAWARE BAY WATERS NORTH OF EAST POINT NJ TO SLAUGHTER BEACH DE 

DELAWARE BAY WATERS SOUTH OF EAST POINT NJ TO SLAUGHTER BEACH DE 

COASTAL WATERS FROM SANDY HOOK TO MANASQUAN INLET NJ OUT 20 NM 

COASTAL WATERS FROM MANASQUAN INLET TO LITTLE EGG INLET NJ OUT 20
NM 

COASTAL WATERS FROM LITTLE EGG INLET TO GREAT EGG INLET NJ OUT 20
NM 

COASTAL WATERS FROM GREAT EGG INLET TO CAPE MAY NJ OUT 20 NM 

COASTAL WATERS FROM CAPE MAY NJ TO CAPE HENLOPEN DE OUT 20 NM 

COASTAL WATERS FROM CAPE HENLOPEN TO FENWICK ISLAND DE OUT 20 NM 

$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY.  PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$

Note:
 Click for Complete Product Text.

Tornadoes

Wind

Hail

Combined Severe Hail/Wind

For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The “Low” category contains probability values ranging from less than 2%
to 20% (EF2-EF5 tornadoes), less than 5% to 20% (all other probabilities),
“Moderate” from 30% to 60%, and “High” from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.