Tornado Watch 510

Issued

Jun 19, 2011, 2:55 AM CDT (07:55 UTC)

Expired

Jun 19, 2011, 8:50 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

The Paducah radar (KPAH), 65 km from the middle of the area, began a volume at 07:58 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

95%

One or more gusts of 65 knots or more

70%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 1289Jun 19, 2:14 AM CDT
• Mesoscale Discussion 1290Jun 19, 4:39 AM CDT
• Mesoscale Discussion 1291Jun 19, 5:46 AM CDT
• Mesoscale Discussion 1292Jun 19, 7:51 AM CDT

710 
WWUS20 KWNS 190753
SEL0
SPC WW 190753
ILZ000-INZ000-KYZ000-MOZ000-191500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 510
NWS STORM PREDICTION CENTER NORMAN OK
255 AM CDT SUN JUN 19 2011

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

       SOUTHERN ILLINOIS
       SOUTHERN INDIANA
       WESTERN AND CENTRAL KENTUCKY
       SOUTHEAST MISSOURI

EFFECTIVE THIS SUNDAY MORNING FROM 255 AM UNTIL 1000 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF
FARMINGTON MISSOURI TO 60 MILES SOUTH SOUTHEAST OF LOUISVILLE
KENTUCKY.  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...CONTINUE...WW 508...

DISCUSSION...A FAST-MOVING MCS OVER SOUTHERN MO WILL TRACK RAPIDLY
EASTWARD INTO A VERY MOIST AND UNSTABLE AIR MASS ACROSS THE WATCH
AREA THROUGH THE MORNING HOURS.  CONDITIONS APPEAR FAVORABLE FOR AN
INTENSE BOW ECHO WITH THE THREAT OF A RESULTING WIDESPREAD DAMAGING
WIND EVENT.  ALSO...SUFFICIENT LOW LEVEL VERTICAL SHEAR AHEAD OF THE
MCS COULD PROMOTE QLCS SPIN-UPS ALONG THE LEADING EDGE OF THE BOW.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27045.


...HART

Tornado Watches in Kentucky, 2011Tornado Watches in Illinois, 2011Tornado Watches in Indiana, 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.