Tornado Watch 507

Issued

Nov 29, 2016, 6:47 PM CST (00:47 UTC)

Expired

Nov 30, 2016, 3:00 AM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

60 kt

Counties Cullman County, AL, DeKalb County, AL, Jackson County, AL, Lawrence County, AL, Limestone County, AL, Madison County, AL, Marshall County, AL, Morgan County, AL, Bedford County, TN, Coffee County, TN, Franklin County, TN, Giles County, TN, Grundy County, TN, Lewis County, TN, Lincoln County, TN, Marshall County, TN, Maury County, TN, Moore County, TN, Warren County, TN

The Northeast Alabama radar (KHTX), 56 km from the middle of the area, began a volume at 00:46 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

50%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

10%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

10%

Six or more combined severe hail and wind reports

60%

• Mesoscale Discussion 1843Nov 29, 5:24 PM CST
• Mesoscale Discussion 1846Nov 29, 6:43 PM CST
• Mesoscale Discussion 1848Nov 29, 9:28 PM CST
• Mesoscale Discussion 1850Nov 29, 11:17 PM CST
• Mesoscale Discussion 1853Nov 30, 1:07 AM CST

255 
WWUS20 KWNS 300044
SEL7  
SPC WW 300044
ALZ000-TNZ000-300600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 507
NWS STORM PREDICTION CENTER NORMAN OK
645 PM CST TUE NOV 29 2016

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  NORTHERN ALABAMA
  SOUTHERN MIDDLE TENNESSEE

* EFFECTIVE THIS TUESDAY NIGHT FROM 645 PM UNTIL MIDNIGHT CST.

* PRIMARY THREATS INCLUDE...
  A FEW TORNADOES AND A COUPLE INTENSE TORNADOES POSSIBLE
  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

SUMMARY...SEVERAL INTENSE THUNDERSTORMS OVER NORTHERN MS WILL
CONTINUE TO TRACK NORTHEASTWARD AND INTO THE WATCH THIS EVENING. 
VERY STRONG WINDS ALOFT WILL POSE A RISK OF DAMAGING WIND GUSTS AND
ISOLATED TORNADOES.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 55 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 35 MILES WEST NORTHWEST OF HUNTSVILLE
AL TO 70 MILES EAST NORTHEAST OF HUNTSVILLE AL. 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 504...WW 505...WW 506...

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN
STORM MOTION VECTOR 24035.

...HART

Tornado Watches in Tennessee, 2016Tornado Watches in Alabama, 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.