Tornado Watch 903

Issued

Sep 13, 2008, 2:09 PM CDT (19:09 UTC)

Expired

Sep 14, 2008, 12:00 AM CDT

In force

10 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

60 kt

The Little Rock radar (KLZK), 125 km from the middle of the area, began a volume at 19:09 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

10%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

30%

• Mesoscale Discussion 2261Sep 13, 1:34 PM CDT
• Mesoscale Discussion 2265Sep 13, 7:37 PM CDT
• Mesoscale Discussion 2266Sep 13, 11:03 PM CDT

747 
WWUS20 KWNS 131909
SEL3  
SPC WW 131909
ARZ000-OKZ000-140500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 903
NWS STORM PREDICTION CENTER NORMAN OK
210 PM CDT SAT SEP 13 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       SOUTHERN AND CENTRAL ARKANSAS
       FAR SOUTHEAST OKLAHOMA

EFFECTIVE THIS SATURDAY AFTERNOON FROM 210 PM UNTIL MIDNIGHT CDT.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES EAST OF TEXARKANA
ARKANSAS TO 45 MILES NORTHEAST OF RUSSELLVILLE ARKANSAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU3).

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 902...

DISCUSSION...T.S. IKE WILL CONTINUE NNEWD ACROSS ERN TX AND MOVE
INTO FAR SERN OK/WRN AR THROUGH THE EVENING...ALLOWING ENHANCED LOW
LEVEL FLOW AND BROKEN RAINBANDS TO LIFT NWD ACROSS PORTIONS OF AR. 
SHEAR IS ALREADY QUITE STRONG INTO CENTRAL AR...AND WITH FURTHER
STRENGTHENING...THREATS OF ISOLATED TORNADOES/DAMAGING WINDS WILL
INCREASE AS STORMS MOVE QUICKLY NWD.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 18050.


...EVANS

Tornado Watches in Arkansas, 2008Every tornado watch in 2008

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.