Alert archive / Mississippi / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 73, NWS Jackson, MS

April 9, 1991Winston County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 9, 1991, 5:29 PM CDT for Winston County, Mississippi. It was in force for 46 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 9, 1991, 5:29 PM CDT (22:29 UTC)
Expired
Apr 9, 1991, 6:15 PM CDT
In force
46 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Winston County, MS

What was reported inside it

TimeReportWhereRemark
Apr 9, 5:50 PM CDTHail 1Winston, MS
Apr 9, 6:00 PM CDTHail 0.88Winston, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.5 hours before the alert went out and 130 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 1991-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2634 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, Jackson, MS at 12:00Z on 1991-04-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
2634 J/kg
Mixed-layer CIN
-75 J/kg
Mixed-layer LCL
622 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
28 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

Local storm report, Apr 9, 3:21 PM CDT, 2 hours 8 minutes before
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Local storm report, Apr 9, 3:28 PM CDT, 2 hours 1 minute before
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Local storm report, Apr 9, 3:38 PM CDT, 1 hour 51 minutes before
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Special weather statement, Apr 9, 3:41 PM CDT, 1 hour 48 minutes before
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Local storm report, Apr 9, 3:59 PM CDT, 1 hour 30 minutes before
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Local storm report, Apr 9, 5:09 PM CDT, 20 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 1:36 PM CDTSevere Thunderstorm WarningJANSmith24 min
Apr 9, 1:53 PM CDTTornado WarningJANSmith37 min
Apr 9, 2:02 PM CDTTornado WarningJANJasper, Newton43 min
Apr 9, 2:14 PM CDTSevere Thunderstorm WarningJANLauderdale46 min
Apr 9, 2:30 PM CDTSevere Thunderstorm WarningJANSmith60 min
Apr 9, 2:51 PM CDTSevere Thunderstorm WarningJANMarion, Walthall24 min
Apr 9, 3:01 PM CDTSevere Thunderstorm WarningJANJasper44 min
Apr 9, 3:06 PM CDTSevere Thunderstorm WarningJANClarke54 min
Apr 9, 3:14 PM CDTSevere Thunderstorm WarningJANLauderdale46 min
Apr 9, 3:59 PM CDTSevere Thunderstorm WarningJANClarke46 min
Apr 9, 4:09 PM CDTSevere Thunderstorm WarningJANLamar51 min
Apr 9, 4:15 PM CDTSevere Thunderstorm WarningJANMontgomery45 min
Apr 9, 4:28 PM CDTSevere Thunderstorm WarningJANWayne47 min
Apr 9, 4:31 PM CDTSevere Thunderstorm WarningJANWebster59 min
Apr 9, 4:39 PM CDTSevere Thunderstorm WarningJANWinston51 min
Apr 9, 4:40 PM CDTSevere Thunderstorm WarningJANChoctaw65 min
Apr 9, 4:57 PM CDTSevere Thunderstorm WarningJANNoxubee48 min
Apr 9, 5:45 PM CDTSevere Thunderstorm WarningJANNeshoba45 min
Apr 9, 5:50 PM CDTSevere Thunderstorm WarningJANNoxubee40 min
Apr 9, 6:14 PM CDTSevere Thunderstorm WarningJANLauderdale, Newton46 min
Apr 9, 6:41 PM CDTSevere Thunderstorm WarningJANNeshoba49 min
Apr 9, 6:57 PM CDTSevere Thunderstorm WarningJANScott33 min
Apr 9, 2:31 PM CDTSevere Thunderstorm WarningJANSumter44 min
Apr 9, 3:31 PM CDTSevere Thunderstorm WarningJANSumter44 min
Apr 9, 3:47 PM CDTSevere Thunderstorm WarningJANChoctaw43 min
Apr 9, 4:17 PM CDTSevere Thunderstorm WarningJANSumter43 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.