Tornado Watch 415

Issued

Aug 4, 2020, 2:26 AM EDT (06:26 UTC)

Expired

Aug 4, 2020, 11:54 AM EDT

In force

9 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

55 kt

The Dover AFB radar (KDOX), 58 km from the middle of the area, began a volume at 06:30 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

50%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

10%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

20%

• Mesoscale Discussion 1389 Tornado watch 414Aug 4, 12:02 AM EDT
• Mesoscale Discussion 1390 Severe potential...tornado watch likelyAug 4, 1:41 AM EDT
• Mesoscale Discussion 1391 Tornado watch 414...415Aug 4, 2:43 AM EDT
• Mesoscale Discussion 1392 Tornado watch 415Aug 4, 5:15 AM EDT
• Mesoscale Discussion 1393 Severe potential...tornado watch likelyAug 4, 6:45 AM EDT
• Mesoscale Discussion 1394 Tornado watch 416Aug 4, 8:59 AM EDT

788 
WWUS20 KWNS 040622
SEL5  
SPC WW 040622
DEZ000-MDZ000-NJZ000-VAZ000-CWZ000-041600-

URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 415
NWS Storm Prediction Center Norman OK
225 AM EDT Tue Aug 4 2020

The NWS Storm Prediction Center has issued a

* Tornado Watch for portions of 
  Delaware
  Eastern Maryland
  Southern New Jersey
  Southeast Virginia
  Coastal Waters

* Effective this Tuesday morning from 225 AM until NOON EDT.

* Primary threats include...
  A few tornadoes possible

SUMMARY...Multiple low-topped supercells associated with tropical
cyclone Isaias will spread north-northeast from northeast North
Carolina across the Virginia Tidewater, Chesapeake Bay, and the
Delmarva region this morning.

The tornado watch area is approximately along and 40 statute miles
east and west of a line from 30 miles north of Dover DE to 30 miles
southwest of Norfolk VA. For a complete depiction of the watch see
the associated watch outline update (WOUS64 KWNS WOU5).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and 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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 414...

AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0.5 inches. Extreme turbulence and surface wind
gusts to 55 knots. A few cumulonimbi with maximum tops to 400. Mean
storm motion vector 17045.

...Grams

Tornado Watches in Virginia, 2020Tornado Watches in Maryland, 2020Tornado Watches in Delaware, 2020Every tornado watch in 2020

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.