Tornado Watch 950

Issued

Nov 17, 2003, 12:45 PM CST (18:45 UTC)

Expired

Nov 17, 2003, 6:00 PM CST

In force

5 hr

Issued by

the Storm Prediction Center

The Houston radar (KHGX), 70 km from the middle of the area, began a volume at 18:45 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.

• Mesoscale Discussion 2502Nov 17, 10:21 AM CST
• Mesoscale Discussion 2504Nov 17, 11:50 AM CST
• Mesoscale Discussion 2506Nov 17, 3:02 PM CST
• Mesoscale Discussion 2508Nov 17, 5:07 PM CST

000 
WWUS20 KWNS 171842
SEL0  
SPC WW 171845
TXZ000-CWZ000-180000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 950 
NWS STORM PREDICTION CENTER NORMAN OK 
1245 PM CST MON NOV 17 2003

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

       MIDDLE AND UPPER TEXAS COAST
       COASTAL WATERS

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 1245 PM UNTIL 600
PM CST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 45 STATUTE MILES EITHER SIDE
OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF VICTORIA TEXAS TO 55
MILES NORTH NORTHEAST OF PORT ARTHUR TEXAS.

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 947. WATCH NUMBER 947 WILL NOT BE IN EFFECT AFTER
1245 PM CST. CONTINUE...WW 949...


DISCUSSION...CLUSTER OF SUPERCELL STORMS CONTINUES ALONG THE TX
COAST...TRACKING SLOWLY NORTHEASTWARD. VERY MOIST AND MODERATELY
UNSTABLE AIRMASS COUPLED WITH SUFFICIENT VERTICAL SHEAR SUGGEST THAT
THREAT OF ISOLATED TORNADOES WILL PERSIST FOR A FEW MORE HOURS IN
THIS REGION.

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 500.
MEAN STORM MOTION VECTOR 24035.


...HART

290,0973 311,0940 300,0931 275,0963

Tornado Watches in Texas, 2003Tornado Watches in Louisiana, 2003Every tornado watch in 2003

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.