Alert archive / Mississippi / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 397, NWS Memphis, TN

May 29, 2006Panola County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at May 29, 2006, 6:41 PM CDT for Panola County, Mississippi. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 29, 2006, 6:41 PM CDT (23:41 UTC)
Expired
May 29, 2006, 7:15 PM CDT
In force
34 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

County Panola County, MS

The radar

The Memphis radar (KNQA), 109 km from the middle of the area, began a volume at 23:43 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.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 11.7 hours before the alert went out and 321 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, Birmingham, AL at 12:00Z on 2006-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 474 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2006-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
474 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
1485 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at May 29, 2:47 PM CDT, 3 hours 54 minutes earlier.

Area forecast discussion, May 29, 2:47 PM CDT, 3 hours 54 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEMPHIS TN
247 PM CDT MON MAY 29 2006

.DISCUSSION...
SCATTERED SHOWERS AND THUNDERSTORMS HAVE DEVELOPED OVER THE
MIDSOUTH WITH DAYTIME HEATING...ESPECIALLY EAST OF THE MISSISSIPPI
RIVER AND IN THE MISSOURI BOOTHEEL. THE FORECAST AREA IS
SANDWICHED BETWEEN AN UPPER HIGH TO THE EAST AND A WEAK LOW TO THE
SOUTHWEST. THE WEAK LOW HAS SPAWNED MANY MORE STORMS...ESPECIALLY
OVER NORTHEASTERN LOUISIANA AND SOUTHEASTERN ARKANSAS.

THE WEAK UPPER LOW WILL REMAIN TRAPPED OVER EAST TEXAS ON THE
WESTERN EDGE OF THE UPPER HIGH OVER THE EASTERN U.S. THIS PESKY
LOW WILL KEEP A MOISTURE AXIS FROM THE TEXAS GULF COAST TO THE
GREAT LAKES...STRETCHED OVER THE WESTERN HALF OF THE FORECAST
AREA. THUS THERE WILL BE VERY LITTLE VARIABILITY IN THE FORECAST
FOR THE NEXT SEVERAL DAYS. HOT AND HUMID WITH INCREASING CHANCES
OF THUNDERSTORMS BEGINNING OVERNIGHT. THE FORECAST AREA WILL
REMAIN UNDER THE INFLUENCE OF THE MOISTURE AXIS AND WEAK UPPER LOW
THROUGH WEDNESDAY NIGHT.

A SHORTWAVE WILL MOVE ACROSS THE NORTHERN PLAINS LATE WEDNESDAY
AND INTO THE MIDWEST THURSDAY MORNING. SHOWERS AND THUNDERSTORMS
WILL ACCOMPANY A SLOW MOVING ASSOCIATED COLD FRONT THAT WILL MOVE
THROUGH THE REGION THROUGH FRIDAY. THE FRONT WILL HELP SCOUR OUT
THE REMAINING RAIN LATE FRIDAY. NEXT WEEKEND APPEARS DRY AT THIS
TIME.

THE WESTERN RIDGE BUILDS ACROSS THE CENTRAL U.S. WHICH WILL CAUSE
DRY CONDITIONS AND DAYTIME TEMPERATURES TO RETURN TO ABOVE NORMAL
BY EARLY NEXT WEEK.

&&

.MEG WATCHES/WARNINGS/ADVISORIES...
AR...NONE.
MO...NONE.
MS...NONE.
TN...NONE.
&&

AC

Nearby

Severe Thunderstorm Warnings in Mississippi, 2006Every severe thunderstorm warning in 2006

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.