Severe Thunderstorm Watch 273

Issued

Jun 14, 2021, 7:29 PM EDT (23:29 UTC)

Expired

Jun 15, 2021, 1:40 AM EDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Dover AFB radar (KDOX), 47 km from the middle of the area, began a volume at 23:29 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

5%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 969 Severe potential...severe thunderstorm watch likelyJun 14, 3:55 PM EDT
• Mesoscale Discussion 972 Severe thunderstorm watch 270Jun 14, 6:18 PM EDT
• Mesoscale Discussion 973 Severe potential...watch likelyJun 14, 6:41 PM EDT
• Mesoscale Discussion 975 Severe thunderstorm watch 273Jun 14, 10:09 PM EDT

730 
WWUS20 KWNS 142324
SEL3  
SPC WW 142324
DCZ000-DEZ000-MDZ000-NJZ000-VAZ000-CWZ000-150600-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 273
NWS Storm Prediction Center Norman OK
725 PM EDT Mon Jun 14 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  District Of Columbia
  Delaware
  Central and Eastern Maryland
  Southern New Jersey
  Northern and Eastern Virginia
  Coastal Waters

* Effective this Monday night and Tuesday morning from 725 PM
  until 200 AM EDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph likely
  Isolated large hail events to 1.5 inches in diameter possible
  A tornado or two possible

SUMMARY...Clusters of storms are expected to develop and/or move
into the region from the west-northwest this evening, with an
increasing potential for damaging winds, some severe hail, and
possibly a brief tornado risk. The downstream air mass is warm and
unstable. The severe risk is expected to continue well into the late
evening and early overnight hours before storms weaken and/or clear
the coast.

The severe thunderstorm watch area is approximately along and 55
statute miles north and south of a line from 50 miles east southeast
of Dover DE to 50 miles west of Washington DC. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU3).

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 270...WW 271...WW 272...

AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29030.

...Guyer

Severe Thunderstorm Watches in Maryland, 2021Severe Thunderstorm Watches in Virginia, 2021Severe Thunderstorm Watches in Delaware, 2021Every severe thunderstorm watch in 2021

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.