Alert archive / Mississippi / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 538, NWS Jackson, MS

July 30, 2023Jones County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 30, 2023, 5:23 PM CDT for Jones County, Mississippi. It was in force for 97 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
Jul 30, 2023, 5:23 PM CDT (22:23 UTC)
Expired
Jul 30, 2023, 7:00 PM CDT
In force
97 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Jones County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 106 km from the middle of the area, began a volume at 22:26 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 10.4 hours before the alert went out and 161 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, Slidell Radar S, LA at 12:00Z on 2023-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1132 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, Slidell Radar S, LA at 12:00Z on 2023-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 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
1132 J/kg
Mixed-layer CIN
-98 J/kg
Mixed-layer LCL
1228 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
-6 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 Jackson, MS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 30, 3:01 PM CDT, 2 hours 22 minutes earlier.

Area forecast discussion, Jul 30, 3:01 PM CDT, 2 hours 22 minutes before
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Hazardous weather outlook, Jul 30, 2:32 PM CDT, 2 hours 51 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
232 PM CDT Sun Jul 30 2023

ARZ074-075-LAZ007>009-015-016-023-025-MSZ018-019-025-034-035-040-
041-047-053-311945-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Tensas-Bolivar-Sunflower-Leflore-
Washington-Humphreys-Issaquena-Sharkey-Warren-Claiborne-
232 PM CDT Sun Jul 30 2023

This hazardous weather outlook is for portions of southeast
Arkansas, northeast Louisiana, central Mississippi, north central
Mississippi, northwest Mississippi, southwest Mississippi, and
west central Mississippi.

.DAY ONE...Tonight and Monday

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Monday

DANGEROUS HEAT
THREAT...Elevated
TIMING...Monday

Monday, isolated severe thunderstorms capable of producing
damaging wind gusts are possible.

(https://www.weather.gov/images/jan/graphicast/1.png)

Elevated heat stress levels are expected with peak heat index
values ranging from 105 to 110 degrees. Heat exhaustion will be
likely with prolonged outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Monday night through Saturday

Elevated heat stress remains possible with peak heat index values
ranging from 105 to 110 degrees each day. Heat exhaustion will be
likely with prolonged outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region Monday
through Monday night.

MSZ026-028>033-038-039-311945-
Grenada-Montgomery-Webster-Clay-Lowndes-Choctaw-Oktibbeha-Winston-
Noxubee-
232 PM CDT Sun Jul 30 2023

This hazardous weather outlook is for portions of central
Mississippi, east central Mississippi, north central Mississippi,
and northeast Mississippi.

.DAY ONE...Tonight and Monday

DANGEROUS HEAT
THREAT...Limited
TIMING...Monday

Heat stress is expected Monday as heat index values peak near 105
degrees. Heat exhaustion will be possible with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Monday night through Saturday

Elevated heat stress remains possible with peak heat index values
ranging near 105 up to 110 degrees each day. Heat exhaustion will
be likely with prolonged outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Saturday.

MSZ027-036-037-042>046-048>052-054>058-063>066-072>074-311945-
Carroll-Holmes-Attala-Yazoo-Madison MS-Leake-Neshoba-Kemper-Hinds-
Rankin-Scott-Newton-Lauderdale-Copiah-Simpson-Smith-Jasper-Clarke-
Lawrence-Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest-
232 PM CDT Sun Jul 30 2023

This hazardous weather outlook is for portions of central
Mississippi, east central Mississippi, north central Mississippi,
south central Mississippi, and southeast Mississippi.

.DAY ONE...Tonight and Monday

DANGEROUS HEAT
THREAT...Elevated
TIMING...Monday

Elevated heat stress levels are expected with peak heat index
values ranging from 105 to 110 degrees. Heat exhaustion will be
likely with prolonged outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Monday night through Saturday

Elevated heat stress remains possible with peak heat index values
ranging from 105 to 110 degrees each day. Heat exhaustion will be
likely with prolonged outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Saturday.

LAZ024-026-MSZ059-060-311945-
Catahoula-Concordia-Jefferson-Adams-
232 PM CDT Sun Jul 30 2023

This hazardous weather outlook is for portions of northeast
Louisiana, and southwest Mississippi.

.DAY ONE...Tonight and Monday

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Monday

DANGEROUS HEAT
THREAT...Significant
TIMING...Monday

Monday, isolated severe thunderstorms capable of producing
damaging wind gusts are possible.

(https://www.weather.gov/images/jan/graphicast/1.png)

Significant heat stress expected with peak heat index values in
excess of 110 degrees. Heat stroke will be a significant concern
with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Monday night through Saturday

Significant heat stress remains possible with peak heat index
values in excess of 110 degrees through Wednesday and values
ranging from 105-110 degrees Thursday through the remainder of the
week. Heat exhaustion will be likely with prolonged outdoor
activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations may be needed for portions of the region Monday
through Monday night.

MSZ061-062-311945-
Franklin MS-Lincoln-
232 PM CDT Sun Jul 30 2023

This hazardous weather outlook is for portions of south central
Mississippi, and southwest Mississippi.

.DAY ONE...Tonight and Monday

DANGEROUS HEAT
THREAT...Significant
TIMING...Monday

Significant heat stress expected with peak heat index values in
excess of 110 degrees. Heat stroke will be a significant concern
with outdoor activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.DAYS TWO THROUGH SEVEN...Monday night through Saturday

Significant heat stress remains possible with peak heat index
values in excess of 110 degrees through Wednesday and values
ranging from 105-110 degrees Thursday through the remainder of the
week. Heat exhaustion will be likely with prolonged outdoor
activity.

(https://www.weather.gov/images/jan/graphicast/2.png)

.SPOTTER CALL TO ACTION STATEMENT...
The activation of storm spotters, HAM radio operators, and
emergency management personnel in support of severe weather
operations is not expected through next Saturday.

14

&&

...HAZARD LEGEND...

*SEVERE THUNDERSTORMS*
High...Significant severe thunderstorms and tornadoes are
 likely with strong or violent tornadoes possible.
Moderate...Significant severe thunderstorms and tornadoes are
 likely with strong tornadoes possible.
Enhanced...Severe thunderstorms are likely and tornadoes are
 possible.
Slight...Severe thunderstorms and tornadoes are possible.
Marginal...Isolated severe thunderstorms are possible.

*DANGEROUS HEAT*
Extreme...Extreme heat is expected with peak heat index values
 in excess of 110 degrees for multiple days. Heat stroke continues
 to be a major concern.
Significant...Dangerous heat expected with peak heat index values
 in excess of 110 degrees. Heat stroke will be a significant
 concern.
Elevated...Dangerous heat likely with peak heat index values
 ranging from 106 to 110 degrees. Heat exhaustion will be likely.
Limited...Caution is advised for possible dangerous heat as
 heat index values peak near 105 degrees. Heat exhaustion will
 be possible.

...USEFUL WEATHER WEB PAGES (URLS)...

NWS JAN Home page...
   https://www.weather.gov/jan
Stay Aware, Stay Safe NWS JAN Briefing Page...
   https://www.weather.gov/jan/safe
Latest Weather Briefing...
   https://www.weather.gov/jan/weather_briefing

Tropical page...
   https://www.weather.gov/srh/tropical?office=jan
National Hurricane Center Home Page...
   https://www.nhc.noaa.gov/
Find NWS JAN on Facebook...
   https://www.facebook.com/NWSJacksonMS
Follow NWS JAN on Twitter...
   @NWSJacksonMS
Follow NWS JAN on Youtube...
   https://www.youtube.com/user/NWSJacksonMiss

...ADDITIONAL URLS FOR SEVERE WEATHER ISSUES...

Storm Prediction Center (SPC)...
   https://www.spc.noaa.gov/
Meso Analysis...
   https://www.spc.noaa.gov/exper/mesoanalysis/
Day 1 through 3 Outlooks...
   https://www.spc.noaa.gov/products/outlook/
Storm Reports...
   https://www.spc.noaa.gov/climo/online/

In the hours before

Special weather statement, Jul 30, 3:51 PM CDT, 1 hour 32 minutes before
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Special weather statement, Jul 30, 3:54 PM CDT, 1 hour 29 minutes before
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Special weather statement, Jul 30, 4:19 PM CDT, 1 hour 4 minutes before
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Special weather statement, Jul 30, 4:38 PM CDT, 45 minutes before
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Local storm report, Jul 30, 5:02 PM CDT, 21 minutes before
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Local storm report, Jul 30, 5:10 PM CDT, 13 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 2:58 PM CDTSpecial Weather StatementJANKemper32 min
Jul 30, 3:00 PM CDTSpecial Weather StatementJANAttala30 min
Jul 30, 3:14 PM CDTSpecial Weather StatementJANNeshoba31 min
Jul 30, 3:20 PM CDTSpecial Weather StatementJANLauderdale25 min
Jul 30, 3:21 PM CDTSpecial Weather StatementJANKemper24 min
Jul 30, 3:30 PM CDTExcessive Heat WarningJANAdams, Claiborne, Copiah, Franklin, Hinds, Issaquena and 8 more29 hr
Jul 30, 3:30 PM CDTHeat AdvisoryJANAttala, Bolivar, Carroll, Claiborne, Clarke, Copiah and 28 more29 hr
Jul 30, 3:34 PM CDTSevere Thunderstorm WarningJANNeshoba, Newton56 min
Jul 30, 3:41 PM CDTSpecial Weather StatementJANKemper34 min
Jul 30, 3:51 PM CDTSpecial Weather StatementJANLauderdale24 min
Jul 30, 3:54 PM CDTSpecial Weather StatementJANLauderdale51 min
Jul 30, 3:58 PM CDTSevere Thunderstorm WarningJANNeshoba, Newton49 min
Jul 30, 4:01 PM CDTSevere Thunderstorm WarningJANLauderdale59 min
Jul 30, 4:19 PM CDTSpecial Weather StatementJANScott41 min
Jul 30, 4:25 PM CDTSevere Thunderstorm WarningJANClarke95 min
Jul 30, 4:32 PM CDTSevere Thunderstorm WarningJANLeake, Newton, Scott48 min
Jul 30, 4:38 PM CDTSpecial Weather StatementJANJasper37 min
Jul 30, 4:54 PM CDTSevere Thunderstorm WarningJANJasper81 min
Jul 30, 5:25 PM CDTSpecial Weather StatementJANNoxubee35 min
Jul 30, 6:02 PM CDTSpecial Weather StatementJANLauderdale28 min
Jul 30, 6:11 PM CDTSpecial Weather StatementJANCovington49 min
Jul 30, 6:17 PM CDTSpecial Weather StatementJANLauderdale43 min
Jul 30, 6:24 PM CDTSpecial Weather StatementJANScott36 min
Jul 30, 6:37 PM CDTSpecial Weather StatementJANForrest38 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2023Every severe thunderstorm warning in 2023

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.