Alert archive / Mississippi / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 36, NWS Jackson, MS

March 28, 1991Smith County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 28, 1991, 3:06 PM CST for Smith County, Mississippi. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
Mar 28, 1991, 3:06 PM CST (21:06 UTC)
Expired
Mar 28, 1991, 3:45 PM CST
In force
39 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Smith County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.1 hours before the alert went out and 64 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, Jackson, MS at 12:00Z on 1991-03-28Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 1991-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939587897117Sfc1 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
1753 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, Mar 28, 12:11 PM CST, 2 hours 55 minutes before
MSZ002-003-008-281900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1210 PM CST THU MAR 28 1991

...THUNDERSTORMS DEVELOPING OVER THE DELTA...

AT 1205 PM CST...RADAR INDICATED AN AREA OF THUNDERSTORMS OVER SOUTHERN
PORTIONS OF THE DELTA.  THIS AREA EXTENDED FROM ABOUT 30 MILES NORTH OF
VICKSBURG TO 10 MILES NORTHEAST OF YAZOO CITY.  MOVEMENT WAS NORTHEAST
AT 45 MILES AN HOUR.

THESE THUNDERSTORMS MAY BE CAPABLE OF PRODUCING BRIXEF BUT HEAVY RAINFALL
...DANGEROUS CLOUD TO GROUND LIGHTNING...AND GUSTY WINDS.  PERSONS IN
SOUTHERN SHARKEY AND NORTHERN YAZOO COUNTIES SHOULD REMAIN ALERT FOR
CHANGING WEATHER CONDITIONS.

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 28, 3:10 PM CSTSevere Thunderstorm WarningJANJasper50 min
Mar 28, 3:42 PM CSTSevere Thunderstorm WarningJANClarke48 min
Mar 28, 4:17 PM CSTSevere Thunderstorm WarningJANHinds28 min
Mar 28, 4:42 PM CSTSevere Thunderstorm WarningJANHinds48 min
Mar 28, 4:47 PM CSTTornado WarningJANLauderdale43 min
Mar 28, 5:31 PM CSTTornado WarningJANLauderdale44 min
Mar 28, 4:08 PM CSTTornado WarningJANChoctaw, Sumter52 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1991Every severe thunderstorm warning in 1991

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.