Tornado Watch 511

Issued

Nov 30, 2016, 2:54 AM CST (08:54 UTC)

Expired

Nov 30, 2016, 10:00 AM CST

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Birmingham radar (KBMX), 93 km from the middle of the area, began a volume at 08:54 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

50%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 1850Nov 29, 11:17 PM CST
• Mesoscale Discussion 1851Nov 29, 11:37 PM CST
• Mesoscale Discussion 1853Nov 30, 1:07 AM CST
• Mesoscale Discussion 1855Nov 30, 5:10 AM CST
• Mesoscale Discussion 1856Nov 30, 9:00 AM CST

265 
WWUS20 KWNS 300850
SEL1  
SPC WW 300850
ALZ000-GAZ000-TNZ000-301600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 511
NWS STORM PREDICTION CENTER NORMAN OK
350 AM CDT WED NOV 30 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  WESTERN THROUGH NORTHERN ALABAMA
  NORTHWESTERN GEORGIA
  SOUTHEASTERN TENNESSEE

* EFFECTIVE THIS WEDNESDAY MORNING FROM 350 AM UNTIL 1100 AM CDT.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1 INCHES IN DIAMETER POSSIBLE

SUMMARY...A BAND OF INTERMITTENTLY SEVERE THUNDERSTORMS...WITH
EMBEDDED QLCS MESOVORTICES AND SUPERCELL STRUCTURES...WILL POSE A
CONTINUING TORNADO RISK AS IT ACCELERATES EASTWARD THROUGH THE
REMAINDER OF THE EARLY/MID-MORNING HOURS.  A SUPERCELL OR TWO ALSO
MAY STILL DEVELOP IN THE WARM SECTOR AHEAD OF THE LINE...ALSO
OFFERING TORNADO POTENTIAL.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 40 MILES WEST SOUTHWEST OF TUSCALOOSA
AL TO 55 MILES EAST OF CHATTANOOGA TN. FOR A COMPLETE DEPICTION OF
THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS
WOU1).

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 509...TORNADO WATCH NUMBER 510. WATCH NUMBER 509 510
WILL NOT BE IN EFFECT AFTER 350 AM CDT. CONTINUE...WW 508...

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN
STORM MOTION VECTOR 24035.

...EDWARDS

Tornado Watches in Alabama, 2016Tornado Watches in Georgia, 2016Tornado Watches in Tennessee, 2016Every tornado watch in 2016

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.