Tornado Watch 303

Issued

Jun 16, 2014, 3:07 PM CDT (20:07 UTC)

Expired

Jun 16, 2014, 10:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Particularly dangerous situation

Yes

Largest hail expected

3 in

Strongest gust expected

60 kt

The North Platte radar (KLNX), 180 km from the middle of the area, began a volume at 20:07 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

90%

One or more EF2 to EF5 tornadoes

80%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 1015Jun 16, 2:13 PM CDT
• Mesoscale Discussion 1018Jun 16, 3:50 PM CDT
• Mesoscale Discussion 1020Jun 16, 4:32 PM CDT
• Mesoscale Discussion 1025Jun 16, 6:50 PM CDT
• Mesoscale Discussion 1029Jun 16, 9:11 PM CDT

767 
WWUS20 KWNS 162009
SEL3  
SPC WW 162009
IAZ000-NEZ000-170300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 303
NWS STORM PREDICTION CENTER NORMAN OK
310 PM CDT MON JUN 16 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  WEST-CENTRAL IOWA
  NORTH-CENTRAL AND NORTHEAST NEBRASKA

* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 310 PM UNTIL
  1000 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

* PRIMARY THREATS INCLUDE...
  SEVERAL TORNADOES AND A FEW INTENSE TORNADOES LIKELY
  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 NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF
AINSWORTH NEBRASKA TO 20 MILES EAST NORTHEAST OF TEKAMAH
NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

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 302...

DISCUSSION...THE 19Z OMA SOUNDING SAMPLED A VOLATILE ENVIRONMENT
WITH 4000 J/KG MLCAPE...60 KT OF EFFECTIVE BULK SHEAR...AND 500
EFFECTIVE SRH. ISOLATED TO WIDELY SCATTERED SUPERCELLS ARE EXPECTED
TO DEVELOP ALONG HEATED OUTFLOW BOUNDARIES WITH A RISK FOR VERY
LARGE HAIL AND DAMAGING TORNADOES...A FEW OF WHICH COULD BE
SIGNIFICANT.

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
600. MEAN STORM MOTION VECTOR 23025.


...MEAD

Tornado Watches in Nebraska, 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.