Alert archive / Mississippi / Tornado Watches in 2008

Tornado Watch 113

March 14, 200833 counties in Mississippi

The Storm Prediction Center issued this tornado watch at Mar 14, 2008, 11:01 PM CDT for 33 counties in Mississippi. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Mar 14, 2008, 11:01 PM CDT (04:01 UTC)
Expired
Mar 15, 2008, 2:24 AM CDT
In force
3 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 33 counties

Attala County, MS, Calhoun County, MS, Carroll County, MS, Chickasaw County, MS, Choctaw County, MS, Clarke County, MS, Clay County, MS, Copiah County, MS, Grenada County, MS, Hinds County, MS, Holmes County, MS, Jasper County, MS, Kemper County, MS, Lauderdale County, MS, Leake County, MS, Leflore County, MS, Lowndes County, MS, Madison County, MS, Monroe County, MS, Montgomery County, MS, Neshoba County, MS, Newton County, MS, Noxubee County, MS, Oktibbeha County, MS, Rankin County, MS, Scott County, MS, Simpson County, MS, Smith County, MS, Tallahatchie County, MS, Webster County, MS, Winston County, MS, Yalobusha County, MS, Yazoo County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 88 km from the middle of the area, began a volume at 04:04 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

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
10%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Mar 14, 11:12 PM CDTTornado WarningJANHolmes, Humphreys, Yazoo48 min
Mar 14, 11:25 PM CDTSevere Thunderstorm WarningJANCarroll, Holmes35 min
Mar 14, 11:51 PM CDTSevere Thunderstorm WarningJANAttala, Choctaw, Montgomery, Winston39 min
Mar 15, 12:20 AM CDTSevere Thunderstorm WarningJANLowndes, Noxubee, Oktibbeha, Winston55 min
Mar 15, 12:29 AM CDTSevere Thunderstorm WarningJANAttala, Choctaw, Winston31 min
Mar 15, 12:29 AM CDTSevere Thunderstorm WarningMEGChickasaw, Itawamba, Lee, Monroe46 min
Mar 15, 12:41 AM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Warren, Yazoo34 min
Mar 15, 1:04 AM CDTSevere Thunderstorm WarningJANNoxubee, Winston41 min
Mar 15, 1:08 AM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey, Warren, Yazoo52 min
Mar 15, 1:12 AM CDTSevere Thunderstorm WarningJANLowndes, Noxubee26 min
Mar 15, 1:43 AM CDTSevere Thunderstorm WarningJANNoxubee19 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.0 hours before the alert went out and 198 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Little Rock, AR at 00:00Z on 2008-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 00:00Z on 2008-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 167 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1631 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
167 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000
WWUS20 KWNS 150402
SEL3  
SPC WW 150402
MSZ000-151100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 113
NWS STORM PREDICTION CENTER NORMAN OK
1100 PM CDT FRI MAR 14 2008

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

       CENTRAL AND NORTHERN MISSISSIPPI

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1100 PM
UNTIL 600 AM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 55 MILES SOUTHWEST OF
GREENWOOD MISSISSIPPI TO 35 MILES NORTHEAST OF MERIDIAN
MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

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 111...WW 112...

DISCUSSION...SEMI-DISCRETE SUPERCELLS CONTINUE TO MOVE/DEVELOP
GENERALLY ESE ALONG STRENGTHENING WNW/ESE WARM FRONT ATTM BETWEEN
JAN AND GWO.  STRENGTH OF DEEP SHEAR...ENHANCED LOW-LEVEL
DIRECTIONAL SHEAR NEAR FRONT...AND INCREASING UVV DOWNSTREAM FROM
POTENT ERN OK VORT MAX SUGGEST CONTINUED LIKELIHOOD FOR SUPERCELLS
AND EVENTUAL MCS DEVELOPMENT.  AN ATTENDANT THREAT FOR ISOLATED
TORNADOES...LARGE HAIL AND LOCALLY DMGG WIND WILL PERSIST THROUGH
EARLY SATURDAY.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28025.


...CORFIDI

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 14, 7:14 PM CDTTornado WatchSPCBolivar, Claiborne, Humphreys, Issaquena, Sharkey, Sunflower and 2 more7 hr
Mar 14, 9:50 PM CDTMesoscale DiscussionSPCBolivar, Claiborne, Humphreys, Issaquena, Sharkey, Sunflower and 2 more55 min
Mar 14, 10:36 PM CDTMesoscale DiscussionSPCAttala, Calhoun, Carroll, Chickasaw, Choctaw, Clarke and 24 more84 min
Mar 14, 11:55 PM CDTMesoscale DiscussionSPCBolivar, Claiborne, Humphreys, Issaquena, Sharkey, Sunflower and 2 more65 min
Mar 14, 11:55 PM CDTSevere Thunderstorm WatchSPCAlcorn, Benton, Coahoma, DeSoto, Itawamba, Lafayette and 11 more7 hr
Mar 15, 1:47 AM CDTMesoscale DiscussionSPCAttala, Carroll, Choctaw, Clarke, Clay, Copiah and 25 more88 min
Mar 15, 2:12 AM CDTMesoscale DiscussionSPCAlcorn, Benton, Coahoma, DeSoto, Lafayette, Lee and 10 more93 min
Mar 15, 4:30 AM CDTMesoscale DiscussionSPCAlcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 15 more90 min
Mar 15, 6:58 AM CDTMesoscale DiscussionSPCTishomingo62 min
Mar 15, 10:23 AM CDTMesoscale DiscussionSPCAlcorn, Benton, DeSoto, Lafayette, Marshall, Panola and 6 more67 min

Nearby

Tornado Watches in Mississippi, 2008Every tornado watch in 2008

Sources

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.