Severe Thunderstorm Watch 261

Issued

Jun 16, 2016, 1:58 PM EDT (17:58 UTC)

Expired

Jun 16, 2016, 10:00 PM EDT

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

The Pittsburgh radar (KPBZ), 147 km from the middle of the area, began a volume at 17:58 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

10%

Ten or more severe wind reports

95%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

10%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 948Jun 16, 11:27 AM EDT
• Mesoscale Discussion 950Jun 16, 1:08 PM EDT
• Mesoscale Discussion 951Jun 16, 4:20 PM EDT
• Mesoscale Discussion 952Jun 16, 6:54 PM EDT
• Mesoscale Discussion 954Jun 16, 9:21 PM EDT

025 
WWUS20 KWNS 161757
SEL1  
SPC WW 161757
DCZ000-MDZ000-OHZ000-PAZ000-VAZ000-WVZ000-CWZ000-170200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 261
NWS STORM PREDICTION CENTER NORMAN OK
155 PM EDT THU JUN 16 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
  DISTRICT OF COLUMBIA
  WESTERN AND CENTRAL MARYLAND
  EASTERN OHIO
  PARTS OF SOUTHERN AND WESTERN PENNSYLVANIA
  PORTIONS OF NORTHERN AND WESTERN VIRGINIA
  MUCH OF WEST VIRGINIA
  COASTAL WATERS

* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 155 PM UNTIL
  1000 PM EDT.

* PRIMARY THREATS INCLUDE...
  WIDESPREAD DAMAGING WIND GUSTS TO 70 MPH EXPECTED
  SCATTERED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE
  A TORNADO OR TWO POSSIBLE

SUMMARY...THUNDERSTORMS DEVELOPING ACROSS OHIO AT THIS TIME ARE
EXPECTED TO INCREASE IN COVERAGE AND INTENSITY AS THEY MOVE QUICKLY
SOUTHEASTWARD ACROSS THE MOUNTAINS TOWARD VIRGINIA.  WIDESPREAD
STRONG/DAMAGING WINDS CAN BE EXPECTED THROUGH THE AFTERNOON AND
EARLY EVENING...ALONG WITH SOME HAIL AND POSSIBLY A TORNADO OR TWO.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 100
STATUTE MILES EITHER SIDE OF A LINE FROM 15 MILES NORTHWEST OF
ZANESVILLE OHIO TO 20 MILES SOUTH OF WASHINGTON DISTRICT OF
COLUM.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

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 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 29035.


...GOSS

Severe Thunderstorm Watches in West Virginia, 2016Severe Thunderstorm Watches in Virginia, 2016Severe Thunderstorm Watches in Ohio, 2016Every severe thunderstorm watch in 2016

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.