Tornado Watch 294

Issued

Jun 14, 2014, 5:10 PM CDT (22:10 UTC)

Expired

Jun 15, 2014, 12:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

60 kt

The Grand Island radar (KUEX), 60 km from the middle of the area, began a volume at 22:13 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

20%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

50%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 994Jun 14, 1:57 PM CDT
• Mesoscale Discussion 997Jun 14, 6:22 PM CDT
• Mesoscale Discussion 998Jun 14, 7:39 PM CDT
• Mesoscale Discussion 1001Jun 14, 9:39 PM CDT
• Mesoscale Discussion 1003Jun 14, 11:22 PM CDT

625 
WWUS20 KWNS 142213
SEL4  
SPC WW 142213
IAZ000-KSZ000-NEZ000-SDZ000-150500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 294
NWS STORM PREDICTION CENTER NORMAN OK
510 PM CDT SAT JUN 14 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  NORTHWEST IOWA
  NORTH CENTRAL KANSAS
  CENTRAL AND NORTHEAST NEBRASKA
  EXTREME SOUTHEAST SOUTH DAKOTA

* EFFECTIVE THIS SATURDAY AFTERNOON FROM 510 PM UNTIL MIDNIGHT
  CDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS
    TO 3 INCHES IN DIAMETER POSSIBLE
  SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE
MILES EAST AND WEST OF A LINE FROM 70 MILES WEST SOUTHWEST OF
CONCORDIA KANSAS TO 55 MILES EAST NORTHEAST OF YANKTON SOUTH
DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).

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 293...

DISCUSSION...THUNDERSTORM DEVELOPMENT IS EXPECTED ALONG THE SURFACE
FRONT/WIND SHIFT BY 23Z FROM NRN KS INTO CENTRAL NEB AS CONVECTIVE
INHIBITION WEAKENS.  THE INITIAL STORM ENVIRONMENT WILL FAVOR
SUPERCELLS WITH LARGE/VERY LARGE HAIL AND SOME DAMAGING WIND
RISK...IN AN ENVIRONMENT WITH STEEP LAPSE RATES BUT SOMEWHAT LARGE
TEMPERATURE-DEWPOINT SPREADS IN NRN KS/SRN NEB.  A FEW STORMS MAY
MOVE INTO THE INITIALLY RICHER MOISTURE AND STRONGER LOW-LEVEL
TOWARD NE NEB...OR REMAIN DISCRETE INTO LATE EVENING AND ENCOUNTER
THE STRENGTHENING LOW-LEVEL SHEAR AND SOMEWHAT RICHER MOISTURE
TOWARD US HWY 81 IN SRN NEB/NRN KS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 25025.


...THOMPSON

Tornado Watches in Nebraska, 2014Tornado Watches in Kansas, 2014Tornado Watches in Iowa, 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.