Tornado Watch 56

Issued

Apr 3, 2014, 8:54 PM CDT (01:54 UTC)

Expired

Apr 4, 2014, 3:56 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Shreveport radar (KSHV), 121 km from the middle of the area, began a volume at 01:55 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

40%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

50%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 268Apr 3, 7:03 PM CDT
• Mesoscale Discussion 272Apr 3, 8:44 PM CDT
• Mesoscale Discussion 276Apr 4, 12:55 AM CDT
• Mesoscale Discussion 282Apr 4, 3:45 AM CDT

297 
WWUS20 KWNS 040155
SEL6  
SPC WW 040155
ARZ000-LAZ000-OKZ000-TXZ000-040900-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 56
NWS STORM PREDICTION CENTER NORMAN OK
855 PM CDT THU APR 3 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  SOUTHWEST ARKANSAS
  NORTHWEST LOUISIANA
  EXTREME SOUTHEAST OKLAHOMA
  NORTHEAST TEXAS

* EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 855 PM
  UNTIL 400 AM CDT.

* PRIMARY THREATS INCLUDE...
  SEVERAL TORNADOES POSSIBLE
  SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
    INCHES IN DIAMETER POSSIBLE
  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 120 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH OF TEXARKANA
ARKANSAS TO 35 MILES SOUTH SOUTHWEST OF LONGVIEW TEXAS.  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.

&&

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 52. WATCH NUMBER 52 WILL NOT BE IN EFFECT AFTER 855
PM CDT. CONTINUE...WW 53...WW 54...WW 55...

DISCUSSION...SUPERCELL CLUSTER NE OF DALLAS WILL CONTINUE TO MOVE
EWD ACROSS NE TX...WHILE NEW STORM DEVELOPMENT COULD OCCUR IN THE
NEXT FEW HOURS NEAR AND E OF THE NE TX/NW LA BORDER.  AN INFLUX OF
UPPER 60S DEWPOINTS WILL MAINTAIN MODERATE INSTABILITY INTO THE
OVERNIGHT HOURS...WHILE VERTICAL SHEAR WILL REMAIN SUFFICIENT FOR
ORGANIZED/SUPERCELL STORMS WITH THE RISK FOR A COUPLE OF TORNADOES. 
LARGE HAIL AND DAMAGING WINDS CAN ALSO BE EXPECTED WITH THE
STRONGEST STORMS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 25035.


...THOMPSON

Tornado Watches in Texas, 2014Tornado Watches in Louisiana, 2014Tornado Watches in Arkansas, 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.