Severe Thunderstorm Watch 607

Issued

Sep 6, 2025, 1:13 PM EDT (17:13 UTC)

Expired

Sep 6, 2025, 7:47 PM EDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Albany radar (KENX), 105 km from the middle of the area, began a volume at 17:15 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

20%

One or more EF2 to EF5 tornadoes

2%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

10%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 2042 Severe potential...watch likelySep 6, 11:56 AM EDT
• Mesoscale Discussion 2045 Severe thunderstorm watch 607Sep 6, 3:49 PM EDT
• Mesoscale Discussion 2046 Severe thunderstorm watch 607Sep 6, 5:34 PM EDT

735 
WWUS20 KWNS 061711
SEL7  
SPC WW 061711
CTZ000-DEZ000-MAZ000-MDZ000-MEZ000-NHZ000-NJZ000-NYZ000-
PAZ000-RIZ000-VTZ000-CWZ000-070000-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 607
NWS Storm Prediction Center Norman OK
110 PM EDT Sat Sep 6 2025

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Connecticut
  Delaware
  Massachusetts
  Northeast Maryland
  Western and Central Maine
  Southern New Hampshire
  New Jersey
  Southeast New York
  Eastern Pennsylvania
  Rhode Island
  Southeast Vermont
  Coastal Waters

* Effective this Saturday afternoon and evening from 110 PM until
  800 PM EDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1 inch in diameter possible
  A tornado or two possible

SUMMARY...Scattered thunderstorms are beginning to develop along a
boundary from central Maryland northeastward into parts of New
York/Vermont.  These storms will intensify through the afternoon,
with locally severe storms expected.  Damaging winds will be the
main risk with the stronger cells, although a few could also produce
hail and perhaps a tornado or two.

The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 45 miles west of
Wilmington DE to 25 miles east of Bangor ME. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU7).

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 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
24030.

...Hart

Severe Thunderstorm Watches in New Jersey, 2025Severe Thunderstorm Watches in New York, 2025Severe Thunderstorm Watches in Pennsylvania, 2025Every severe thunderstorm watch in 2025

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.