Tornado Watch 322

Issued

Jun 18, 2014, 12:28 PM MDT (18:28 UTC)

Expired

Jun 18, 2014, 9:00 PM MDT

In force

9 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Bismarck radar (KBIS), 175 km from the middle of the area, began a volume at 18:28 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

30%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 1062Jun 18, 12:13 PM MDT
• Mesoscale Discussion 1068Jun 18, 4:23 PM MDT
• Mesoscale Discussion 1074Jun 18, 7:47 PM MDT

656 
WWUS20 KWNS 181830
SEL2  
SPC WW 181830
NDZ000-SDZ000-190200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 322
NWS STORM PREDICTION CENTER NORMAN OK
130 PM CDT WED JUN 18 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHWEST AND SOUTH-CENTRAL NORTH DAKOTA
  NORTHWEST AND CENTRAL SOUTH DAKOTA

* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 130 PM
  UNTIL 900 PM CDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5
    INCHES IN DIAMETER POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES SOUTH OF PIERRE SOUTH
DAKOTA TO 20 MILES NORTHWEST OF BISMARCK NORTH DAKOTA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU2).

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 321...

DISCUSSION...THUNDERSTORMS DEVELOPING ALONG AND EAST OF AN INVERTED
TROUGH SHOULD CONTINUE TO INTENSIFY TODAY WITH SUPERCELL STORM MODES
LIKELY. VERY LARGE HAIL...LOCALLY DAMAGING WINDS AND A COUPLE OF
TORNADOES APPEAR PROBABLE.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 24020.


...MEAD

Tornado Watches in South Dakota, 2014Tornado Watches in North Dakota, 2014Every tornado watch in 2014

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.