Tornado Watch 143

Issued

May 11, 2014, 2:38 PM CDT (19:38 UTC)

Expired

May 11, 2014, 10:00 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Dodge City radar (KDDC), 88 km from the middle of the area, began a volume at 19:41 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

30%

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

60%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 562May 11, 12:49 PM CDT
• Mesoscale Discussion 564May 11, 1:46 PM CDT
• Mesoscale Discussion 568May 11, 5:31 PM CDT
• Mesoscale Discussion 573May 11, 8:30 PM CDT

676 
WWUS20 KWNS 111942
SEL3  
SPC WW 111942
KSZ000-OKZ000-TXZ000-120300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 143
NWS STORM PREDICTION CENTER NORMAN OK
240 PM CDT SUN MAY 11 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  WESTERN AND CENTRAL KANSAS
  NORTHWEST OKLAHOMA INCLUDING THE EASTERN PANHANDLE
  NORTHEAST TEXAS PANHANDLE

* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 240 PM UNTIL
  1000 PM CDT.

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

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF SALINA
KANSAS TO 15 MILES SOUTH SOUTHEAST OF GAGE OKLAHOMA.  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 141...WW 142...

DISCUSSION...RAPID TSTM DEVELOPMENT IS UNDERWAY ALONG THE DRYLINE
WITHIN A STEEP LAPSE RATE AND MODERATELY UNSTABLE ENVIRONMENT. A
CONTINUED STRENGTHENING OF DEEP-LAYER FLOW FIELDS INTO THIS EVENING
WILL SUPPORT SUPERCELL STRUCTURES CAPABLE OF VERY LARGE HAIL
INITIALLY. THE THREAT FOR A COUPLE OF TORNADOES MAY INCREASE THIS
EVENING WITH ANY STORMS THAT CAN REMAIN DISCRETE OWING TO INCREASING
AMOUNTS OF LOW-LEVEL SHEAR AND MOISTURE.

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
550. MEAN STORM MOTION VECTOR 24030.


...MEAD

Tornado Watches in Kansas, 2014Tornado Watches in Oklahoma, 2014Tornado Watches in Texas, 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.