Tornado Watch 830

Issued

Oct 16, 2006, 10:37 AM CDT (15:37 UTC)

Expired

Oct 16, 2006, 8:00 PM CDT

In force

9 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

60 kt

Two or more tornadoes

70%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

20%

One or more gusts of 65 knots or more

20%

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

60%

• Mesoscale Discussion 2123Oct 16, 7:51 AM CDT
• Mesoscale Discussion 2124Oct 16, 12:39 PM CDT
• Mesoscale Discussion 2125Oct 16, 1:56 PM CDT
• Mesoscale Discussion 2126Oct 16, 3:37 PM CDT
• Mesoscale Discussion 2128Oct 16, 6:19 PM CDT
• Mesoscale Discussion 2129Oct 16, 7:22 PM CDT

000 
WWUS20 KWNS 161536
SEL0  
SPC WW 161536
LAZ000-TXZ000-CWZ000-170000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 830
NWS STORM PREDICTION CENTER NORMAN OK
1035 AM CDT MON OCT 16 2006

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

       MUCH CENTRAL AND SOUTHERN LOUISIANA
       SOUTHEAST TEXAS
       COASTAL WATERS

EFFECTIVE THIS MONDAY MORNING AND EVENING FROM 1035 AM UNTIL 700
PM 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 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 75 MILES NORTHEAST OF
NATCHITOCHES LOUISIANA TO 35 MILES SOUTH SOUTHEAST OF PORT ARTHUR
TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 829. WATCH NUMBER 829 WILL NOT BE IN EFFECT AFTER
1035 AM CDT. 

DISCUSSION...THUNDERSTORMS WILL CONTINUE TO DEVELOP ALONG THE AXIS
OF THE LLJ AND RICHEST MOISTURE FROM SE TX/SW LA NEWD THROUGH THE
AFTERNOON.  MEANWHILE...A WARM FRONT WILL LIFT SLOWLY NWD TOWARD THE
I-20 CORRIDOR. BOUNDARY LAYER DEWPOINTS IN THE LOW-MID 70S AND
EXTREMELY STRONG LOW-LEVEL SHEAR NEAR THE WARM FRONT WILL CONTINUE
TO SUPPORT A THREAT FOR SUPERCELLS WITH TORNADOES THROUGH THE
AFTERNOON.

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
550. MEAN STORM MOTION VECTOR 22045.


...THOMPSON

Tornado Watches in Louisiana, 2006Tornado Watches in Texas, 2006Every tornado watch in 2006

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.