Severe Thunderstorm Watch 22

Issued

Feb 1, 2012, 4:59 PM CST (22:59 UTC)

Expired

Feb 1, 2012, 8:42 PM CST

In force

4 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

60 kt

The Columbus AFB radar (KGWX), 114 km from the middle of the area, began a volume at 22:59 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

20%

One or more EF2 to EF5 tornadoes

5%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 87Feb 1, 2:58 PM CST
• Mesoscale Discussion 88Feb 1, 4:49 PM CST
• Mesoscale Discussion 90Feb 1, 7:10 PM CST

272 
WWUS20 KWNS 012302
SEL2
SPC WW 012302
MSZ000-020500-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 22
NWS STORM PREDICTION CENTER NORMAN OK
500 PM CST WED FEB 1 2012

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

       NORTHERN MISSISSIPPI

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 500 PM UNTIL
1100 PM CST.

HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES SOUTH
SOUTHEAST OF GREENWOOD MISSISSIPPI TO 50 MILES NORTH OF TUPELO
MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 20...WW 21...

DISCUSSION...BOWING MCS WITH A WELL-ORGANIZED COLD POOL IS EXPECTED
TO CONTINUE EWD ACROSS NRN MS AT AROUND 40 KT.  UPSTREAM VAD DATA
FROM LITTLE ROCK INDICATE 50 KT WLY FLOW AT 2 KM AGL WHICH MAY BE
TRANSLATED TO THE SFC BY REAR-INFLOW JET DEVELOPING WITHIN TRAILING
STRATIFORM REGION OF MCS.  DOWNSTREAM AIR MASS SHOULD REMAIN BUOYANT
AND WEAKLY TO MODERATELY UNSTABLE FOR THE NEXT 1-3 HOURS...ALLOWING
FOR THE CONTINUED THREAT FOR DAMAGING WINDS AND SOME HAIL THROUGH
THE REMAINDER OF THE EVENING.

AVIATION...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 500. MEAN STORM MOTION
VECTOR 27040.


...MEAD

Severe Thunderstorm Watches in Mississippi, 2012Every severe thunderstorm watch in 2012

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.