Tornado Watch 97

Issued

Apr 27, 2014, 1:46 PM CDT (18:46 UTC)

Expired

Apr 27, 2014, 11:00 PM CDT

In force

9 hr

Issued by

the Storm Prediction Center

Largest hail expected

2.5 in

Strongest gust expected

70 kt

The Western Arkansas radar (KSRX), 70 km from the middle of the area, began a volume at 18:46 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

60%

Ten or more severe wind reports

50%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

80%

One or more hailstones of 2 inches or more

60%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 416Apr 27, 10:06 AM CDT
• Mesoscale Discussion 418Apr 27, 11:27 AM CDT
• Mesoscale Discussion 420Apr 27, 12:25 PM CDT
• Mesoscale Discussion 427Apr 27, 4:52 PM CDT
• Mesoscale Discussion 428Apr 27, 4:57 PM CDT
• Mesoscale Discussion 430Apr 27, 6:10 PM CDT
• Mesoscale Discussion 431Apr 27, 6:11 PM CDT
• Mesoscale Discussion 435Apr 27, 7:15 PM CDT
• Mesoscale Discussion 437Apr 27, 8:09 PM CDT
• Mesoscale Discussion 439Apr 27, 8:43 PM CDT
• Mesoscale Discussion 440Apr 27, 9:59 PM CDT
• Mesoscale Discussion 441Apr 27, 10:45 PM CDT

543 
WWUS20 KWNS 271849
SEL7  
SPC WW 271849
ARZ000-LAZ000-OKZ000-TXZ000-280200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 97
NWS STORM PREDICTION CENTER NORMAN OK
150 PM CDT SUN APR 27 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  MUCH OF CENTRAL AND WESTERN ARKANSAS
  EXTREME NORTHERN LOUISIANA
  EASTERN OKLAHOMA
  NORTHEAST TEXAS

* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 150 PM UNTIL
  900 PM CDT.

* PRIMARY THREATS INCLUDE...
  SEVERAL TORNADOES AND A COUPLE INTENSE TORNADOES LIKELY
  WIDESPREAD LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5
    INCHES IN DIAMETER LIKELY
  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80
    MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH OF HARRISON
ARKANSAS TO 60 MILES SOUTH SOUTHEAST OF TEXARKANA ARKANSAS.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 94...WW 95...WW 96...

DISCUSSION...COMPLICATED SCENARIO EARLY THIS AFTERNOON...BUT THREAT
FOR SURFACE-BASED STORM DEVELOPMENT WILL INCREASE IN THE NEXT FEW
HOURS LONG THE SURFACE WIND SHIFT IN ERN OK/NE TX...AND NEAR AN
OUTFLOW BOUNDARY ACROSS CENTRAL AR.  THE STORM ENVIRONMENT WILL
BECOME MORE FAVORABLE FOR SUPERCELLS WITH TIME...AND WILL SUPPORT A
STRONG TORNADO RISK BY LATE AFTERNOON INTO THIS EVENING...ESPECIALLY
NEAR THE RESIDUAL OUTFLOW BOUNDARY IN AR.  OTHERWISE...THE MORE
INTENSE SUPERCELLS WILL BE CAPABLE OF PRODUCING VERY LARGE HAIL AND
DAMAGING WINDS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 24035.


...THOMPSON

Tornado Watches in Arkansas, 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.