Tornado Watch 839

Issued

Sep 5, 2011, 12:10 PM EDT (16:10 UTC)

Expired

Sep 5, 2011, 3:42 PM EDT

In force

4 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Atlanta radar (KFFC), 17 km from the middle of the area, began a volume at 16:10 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

30%

One or more gusts of 65 knots or more

30%

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

70%

• Mesoscale Discussion 2130Sep 5, 8:24 AM EDT
• Mesoscale Discussion 2131Sep 5, 12:01 PM EDT
• Mesoscale Discussion 2133Sep 5, 3:05 PM EDT

217 
WWUS20 KWNS 051610
SEL9  
SPC WW 051610
GAZ000-060000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 839
NWS STORM PREDICTION CENTER NORMAN OK
1210 PM EDT MON SEP 5 2011

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

       WESTERN AND CENTRAL GEORGIA

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 1210 PM UNTIL
800 PM EDT.

TORNADOES...HAIL TO 1 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 50 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF
ROME GEORGIA TO 50 MILES SOUTH SOUTHWEST OF MACON GEORGIA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU9).

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 838...

DISCUSSION...CONFLUENCE BAND /CONTAINING SUPERCELLS/ FROM AUO SSWWD
TO CEW IS EXPECTED TO DEVELOP NEWD ACROSS THE WATCH AREA THIS
AFTERNOON WITHIN WARMING/DESTABILIZING AIR MASS.  VERTICAL SHEAR
WILL CORRESPONDINGLY STRENGTHEN WITH ENVIRONMENT REMAINING
SUPPORTIVE OF SUPERCELLS AND LEWP STRUCTURES CAPABLE OF TORNADOES
AND DAMAGING WINDS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 21035.


...MEAD

Tornado Watches in Georgia, 2011Every tornado watch in 2011

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.