Tornado Watch 209

Issued

Jun 3, 2014, 2:11 PM MDT (20:11 UTC)

Expired

Jun 3, 2014, 9:30 PM MDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

Counties Arthur County, NE, Box Butte County, NE, Cherry County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE, Sheridan County, NE, Thomas County, NE

The North Platte radar (KLNX), 162 km from the middle of the area, began a volume at 20:10 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

30%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

50%

• Mesoscale Discussion 794Jun 3, 12:20 PM MDT
• Mesoscale Discussion 800Jun 3, 3:54 PM MDT

213 
WWUS20 KWNS 032013
SEL9  
SPC WW 032013
NEZ000-040400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 209
NWS STORM PREDICTION CENTER NORMAN OK
210 PM MDT TUE JUN 3 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  WESTERN NEBRASKA

* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 210 PM UNTIL
  1000 PM MDT.

* PRIMARY THREATS INCLUDE...
  A COUPLE TORNADOES POSSIBLE
  ISOLATED SIGNIFICANT DAMAGING WIND GUSTS TO 80 MPH POSSIBLE
  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES WEST NORTHWEST OF
SCOTTSBLUFF NEBRASKA TO 45 MILES EAST OF MULLEN NEBRASKA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU9).

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 207...WW 208...

DISCUSSION...STRONG TO LOCALLY EXTREME INSTABILITY BENEATH GRADUALLY
ERODING CAP SHOULD FUEL ISOLATED INTENSE TSTM DEVELOPMENT ACROSS
PARTS OF WRN NEB OVER THE NEXT SEVERAL HOURS. REMAINING INHIBITION
APPEARS TO BE ERODING AS LARGE SCALE ASCENT SPREADS EAST FROM THE
ROCKIES/HIGH PLAINS AND STRONG SFC HEATING RESULTS IN A DEEPENING
AND WELL-MIXED BOUNDARY LAYER. STRENGTHENING LOW LEVEL SELY FLOW AND
A VEERING PROFILE THROUGH THE STORM UPDRAFT LAYER SHOULD CONTRIBUTE
TO MESOCYCLONE DEVELOPMENT AND PERSISTENCE WITH A COUPLE OF
TORNADOES POSSIBLE. AMOUNT OF STORM COVERAGE STILL SOMEWHAT IN
QUESTION GIVEN MAGNITUDE OF CAPPING AND WARMER AIR ALOFT.
HOWEVER...CONDITIONAL THREAT IS SUFFICIENT ENOUGH TO WARRANT TORNADO
WATCH AT THIS TIME.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28035.


...CARBIN

Tornado Watches in Nebraska, 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.