Tornado Watch 401

Issued

Jul 20, 2016, 5:39 PM CDT (22:39 UTC)

Expired

Jul 20, 2016, 10:59 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

65 kt

Counties Benson County, ND, Bottineau County, ND, Cavalier County, ND, McHenry County, ND, Pierce County, ND, Ramsey County, ND, Renville County, ND, Rolette County, ND, Towner County, ND, Ward County, ND

The Minot AFB radar (KMBX), 54 km from the middle of the area, began a volume at 22:41 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

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

50%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 1338Jul 20, 3:43 PM CDT
• Mesoscale Discussion 1339Jul 20, 5:43 PM CDT
• Mesoscale Discussion 1340Jul 20, 8:14 PM CDT

800 
WWUS20 KWNS 202237
SEL1  
SPC WW 202237
NDZ000-210400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 401
NWS STORM PREDICTION CENTER NORMAN OK
540 PM CDT WED JUL 20 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  NORTH CENTRAL NORTH DAKOTA

* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 540 PM
  UNTIL 1100 PM CDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
    MPH POSSIBLE
  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3
    INCHES IN DIAMETER POSSIBLE

SUMMARY...ISOLATED SUPERCELLS WILL CONTINUE TO MOVE EASTWARD ACROSS
NORTH CENTRAL NORTH DAKOTA THROUGH THIS EVENING...AND OTHER STORMS
IN MANITOBA MAY ALSO MOVE TO THE EAST-SOUTHEAST ACROSS THE BORDER. 
STORMS SHOULD REMAIN SEMI-DISCRETE FOR SEVERAL HOURS...CAPABLE OF
PRODUCING A COUPLE OF TORNADOES...VERY LARGE HAIL...AND DAMAGING
WINDS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 35 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 10 MILES NORTH OF MINOT
NORTH DAKOTA TO 30 MILES NORTHEAST OF DEVILS LAKE NORTH DAKOTA. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

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 400...

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
600. MEAN STORM MOTION VECTOR 27035.


...THOMPSON

Tornado Watches in North Dakota, 2016Every tornado 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.