Alert archive / Mississippi / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 331, NWS Memphis, TN

September 12, 2004Pontotoc County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Sep 12, 2004, 5:56 PM CDT for Pontotoc County, Mississippi. It was in force for 34 min. 7 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Sep 12, 2004, 5:56 PM CDT (22:56 UTC)
Expired
Sep 12, 2004, 6:30 PM CDT
In force
34 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

County Pontotoc County, MS

The radar

The Columbus AFB radar (KGWX), 74 km from the middle of the area, began a volume at 22:56 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 was reported inside it

TimeReportWhereRemark
Sep 12, 6:00 PM CDTHAIL 1.59 Ne Pontotoc, MSSLIGHTLY SMALLER THAN GOLF BALL SIZE HAIL REPORTED ON HWY 9 BETWEEN PONTOTOC AND SHERMAN
Sep 12, 6:00 PM CDTHAIL 1.59 Ne Pontotoc, MSSLIGHTLY SMALLER THAN GOLF BALL SIZE HAIL REPORTED ON HWY 9 BETWEEN PONTOTOC AND SHERMAN
Sep 12, 6:00 PM CDTHAIL 1.59 Ne Pontotoc, MSSLIGHTLY SMALLER THAN GOLF BALL SIZE HAIL REPORTED ON HWY 9 BETWEEN PONTOTOC AND SHERMAN
Sep 12, 6:00 PM CDTHAIL 1.59 Ne Pontotoc, MSSLIGHTLY SMALLER THAN GOLF BALL SIZE HAIL REPORTED ON HWY 9 BETWEEN PONTOTOC AND SHERMAN
Sep 12, 6:00 PM CDTHAIL 1.59 Ne Pontotoc, MSSLIGHTLY SMALLER THAN GOLF BALL SIZE HAIL REPORTED ON HWY 9 BETWEEN PONTOTOC AND SHERMAN
Sep 12, 6:00 PM CDTHAIL 1.59 Ne Pontotoc, MSSLIGHTLY SMALLER THAN GOLF BALL SIZE HAIL REPORTED ON HWY 9 BETWEEN PONTOTOC AND SHERMAN
Sep 12, 6:00 PM CDTHAIL 1.59 Ne Pontotoc, MSSLIGHTLY SMALLER THAN GOLF BALL SIZE HAIL REPORTED ON HWY 9 BETWEEN PONTOTOC AND SHERMAN

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 10.9 hours before the alert went out and 107 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 12:00Z on 2004-09-12Temperature 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 12:00Z on 2004-09-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
1709 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
-11 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 
WUUS54 KMEG 122256
SVRMEM
MSC115-122330-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
556 PM CDT SUN SEP 12 2004

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PONTOTOC COUNTY IN NORTHEAST MISSISSIPPI

* UNTIL 630 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE  
THUNDERSTORM OVER SHERMAN...NEARLY STATIONARY.

* CITIES IN THE PATH OF THIS STORM THROUGH 630 PM CDT INCLUDE...
  SHERMAN...

.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

LAT...LON 3435 8910 3414 8912 3412 8884 3436 8884

$$

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 12, 2:45 PM CDTSevere Thunderstorm WarningMEGTippah30 min
Sep 12, 4:32 PM CDTSevere Thunderstorm WarningMEGLafayette28 min
Sep 12, 4:34 PM CDTSevere Thunderstorm WarningMEGTishomingo26 min
Sep 12, 4:38 PM CDTSevere Thunderstorm WarningMEGUnion37 min
Sep 12, 4:45 PM CDTFlash Flood WarningMEGMarshall2 hr
Sep 12, 5:11 PM CDTSevere Thunderstorm WarningMEGUnion34 min
Sep 12, 5:34 PM CDTSevere Thunderstorm WarningMEGPontotoc26 min
Sep 12, 5:42 PM CDTFlash Flood WarningMEGUnion3 hr
Sep 12, 5:42 PM CDTSevere Thunderstorm WarningMEGUnion33 min
Sep 12, 6:06 PM CDTSevere Thunderstorm WarningMEGLee24 min
Sep 12, 6:28 PM CDTSevere Thunderstorm WarningMEGLee, Pontotoc32 min
Sep 12, 6:55 PM CDTSevere Thunderstorm WarningMEGChickasaw35 min
Sep 12, 6:58 PM CDTSevere Thunderstorm WarningMEGLee32 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2004Every severe thunderstorm warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.