Tornado Watch 116

Issued

Apr 29, 2014, 12:46 PM CDT (17:46 UTC)

Expired

Apr 29, 2014, 11:00 PM CDT

In force

10 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

60 kt

The Jackson/Brandon,MS radar (KDGX), 28 km from the middle of the area, began a volume at 17:49 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

80%

One or more EF2 to EF5 tornadoes

50%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

80%

One or more hailstones of 2 inches or more

70%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 475Apr 29, 12:02 PM CDT
• Mesoscale Discussion 482Apr 29, 6:01 PM CDT

521 
WWUS20 KWNS 291748
SEL6  
SPC WW 291748
ALZ000-LAZ000-MSZ000-300200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 116
NWS STORM PREDICTION CENTER NORMAN OK
1245 PM CDT TUE APR 29 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  EXTREME SOUTHWEST ALABAMA
  PARTS OF NORTHEAST AND SOUTHEAST LOUISIANA
  CENTRAL AND SOUTHERN MISSISSIPPI

* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 1245 PM UNTIL
  900 PM CDT.

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

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTHEAST OF
MERIDIAN MISSISSIPPI TO 25 MILES WEST OF NATCHEZ MISSISSIPPI. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU6).

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.

&&

DISCUSSION...THUNDERSTORMS WILL INTENSIFY BOTH ALONG A RETREATING
OUTFLOW BOUNDARY IN SE MS/SW AL...AND IN THE EXPANDING WARM SECTOR
FROM NE LA INTO MS THE NEXT FEW HOURS.  DESTABILIZATION AND STRONG
DEEP-LAYER VERTICAL SHEAR WILL FAVOR SUPERCELLS CAPABLE OF PRODUCING
TORNADOES...LARGE HAIL...AND DAMAGING WINDS.  A COUPLE STRONG
TORNADOES WILL BE POSSIBLE THIS AFTERNOON WITH THE MOST INTENSE
SUPERCELLS...AS WELL AS ISOLATED VERY LARGE HAIL.  BY ABOUT MID
AFTERNOON...THE SEVERE THREAT WILL SPREAD EWD INTO W CENTRAL AL.

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 25040.


...THOMPSON

Tornado Watches in Mississippi, 2014Tornado Watches in Louisiana, 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.