Alert archive / Mississippi / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 490, NWS Jackson, MS

July 4, 2023Choctaw County, Webster County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 4, 2023, 3:09 PM CDT for Choctaw County, Webster County, Mississippi. It was in force for 51 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 4, 2023, 3:09 PM CDT (20:09 UTC)
Expired
Jul 4, 2023, 4:00 PM CDT
In force
51 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Choctaw County, MS, Webster County, MS

The radar

The Columbus AFB radar (KGWX), 98 km from the middle of the area, began a volume at 20:09 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

Jackson, MS (KJAN), launched 12:00Z, 8.2 hours before the alert went out and 150 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 2023-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1509 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 2023-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
1509 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
749 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
57 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 4, 12:43 PM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, Jul 4, 12:43 PM CDT, 2 hours 26 minutes before
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Hazardous weather outlook, Jul 4, 3:30 AM CDT, 11 hours 39 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
330 AM CDT Tue Jul 4 2023

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>066-072>074-
050830-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar-
Sunflower-Leflore-Grenada-Carroll-Montgomery-Webster-Clay-Lowndes-
Choctaw-Oktibbeha-Washington-Humphreys-Holmes-Attala-Winston-
Noxubee-Issaquena-Sharkey-Yazoo-Madison MS-Leake-Neshoba-Kemper-
Warren-Hinds-Rankin-Scott-Newton-Lauderdale-Claiborne-Copiah-
Simpson-Smith-Jasper-Clarke-Jefferson-Adams-Franklin MS-Lincoln-
Lawrence-Jefferson Davis-Covington-Jones-Marion-Lamar-Forrest-
330 AM CDT Tue Jul 4 2023

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

.DAY ONE...Today and Tonight

SEVERE THUNDERSTORMS
THREAT...Marginal
TIMING...Today through Tonight

Today through tonight, isolated severe thunderstorms are
possible. Some thunderstorms could produce damaging wind gusts
and hail to the size of quarters.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Dangerous heat with maximum heat index values near 105 degrees is
possible for the western and southern portions of the outlook
area on Wednesday.

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

Isolated severe thunderstorms are possible for the whole outlook
area again on Wednesday. Some thunderstorms could produce
damaging wind gusts and hail to the size of quarters.

(https://www.weather.gov/images/jan/graphicast/1.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 today
through Wednesday night.

0

&&

...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.

...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 4, 1:04 PM CDT, 2 hours 5 minutes before
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Special weather statement, Jul 4, 2:04 PM CDT, 1 hour 5 minutes before
Special Weather Statement
National Weather Service Jackson MS
204 PM CDT Tue Jul 4 2023

MSZ038-039-041945-
Noxubee MS-Winston MS-
204 PM CDT Tue Jul 4 2023

...A strong thunderstorm will impact portions of western Noxubee and
southeastern Winston Counties through 245 PM CDT...

At 204 PM CDT, Doppler radar was tracking a strong thunderstorm near
Millcreek, or near Louisville, moving east at 20 mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Millcreek around 210 PM CDT.
  Mashulaville around 245 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3297 8904 3316 8907 3326 8874 3297 8873
TIME...MOT...LOC 1904Z 262DEG 17KT 3309 8897

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

EC
Special weather statement, Jul 4, 2:05 PM CDT, 1 hour 4 minutes before
Special Weather Statement
National Weather Service Jackson MS
205 PM CDT Tue Jul 4 2023

MSZ032-037-038-041945-
Attala MS-Winston MS-Choctaw MS-
205 PM CDT Tue Jul 4 2023

...A strong thunderstorm will impact portions of south central
Choctaw, east central Attala and southwestern Winston Counties
through 245 PM CDT...

At 205 PM CDT, Doppler radar was tracking a strong thunderstorm near
Ethel, or 10 miles east of Kosciusko, moving east at 20 mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Mccool around 220 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3299 8948 3317 8950 3325 8922 3297 8922
TIME...MOT...LOC 1905Z 262DEG 17KT 3309 8941

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

EC
Special weather statement, Jul 4, 2:15 PM CDT, 54 minutes before
Special Weather Statement
National Weather Service Jackson MS
215 PM CDT Tue Jul 4 2023

MSZ026-042000-
Grenada MS-
215 PM CDT Tue Jul 4 2023

...A strong thunderstorm will impact portions of eastern Grenada
County through 300 PM CDT...

At 215 PM CDT, Doppler radar was tracking a strong thunderstorm over
Grenada, moving east at 20 mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Gore Springs around 245 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3387 8977 3387 8951 3370 8951 3370 8986
      3388 8989 3390 8981 3390 8977
TIME...MOT...LOC 1915Z 262DEG 16KT 3380 8980

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

EC
Special weather statement, Jul 4, 2:56 PM CDT, 13 minutes before
Special Weather Statement
National Weather Service Jackson MS
256 PM CDT Tue Jul 4 2023

MSZ028-029-032-042100-
Montgomery MS-Choctaw MS-Webster MS-
256 PM CDT Tue Jul 4 2023

...A strong thunderstorm will impact portions of northern Choctaw,
Webster and central Montgomery Counties through 400 PM CDT...

At 256 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lodi, or 10 miles west of Eupora, moving northeast at 25 mph.

HAZARD...Wind gusts up to 50 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Eupora around 320 PM CDT.
  Embry around 325 PM CDT.
  Walthall and Bellefontaine around 330 PM CDT.
  Clarkson around 345 PM CDT.
  Mantee around 400 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3364 8903 3364 8902 3356 8902 3356 8909
      3352 8909 3338 8943 3344 8969 3368 8955
      3368 8951 3372 8951 3372 8919 3374 8919
      3374 8904
TIME...MOT...LOC 1956Z 221DEG 20KT 3350 8946

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

86
Special weather statement, Jul 4, 3:05 PM CDT, 4 minutes before
Special Weather Statement
National Weather Service Jackson MS
305 PM CDT Tue Jul 4 2023

MSZ045-046-042100-
Kemper MS-Neshoba MS-
305 PM CDT Tue Jul 4 2023

...A strong thunderstorm will impact portions of Kemper and Neshoba
Counties through 400 PM CDT...

At 305 PM CDT, Doppler radar was tracking a strong thunderstorm near
Tucker, or near Philadelphia, moving east at 15 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Tucker and Bethsaida around 315 PM CDT.
  House around 320 PM CDT.
  Forestdale around 345 PM CDT.
  Bluff Springs and Damascus around 400 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3258 8839 3258 8932 3282 8932 3293 8835
TIME...MOT...LOC 2005Z 246DEG 13KT 3269 8910

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

86

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 7:02 PM CDTSpecial Weather StatementJANNoxubee, Winston58 min
Jul 3, 10:00 PM CDTSpecial Weather StatementJANJasper60 min
Jul 4, 4:03 AM CDTFlash Flood WarningJANForrest, Lamar2 hr
Jul 4, 12:43 PM CDTSpecial Weather StatementJANChoctaw32 min
Jul 4, 1:03 PM CDTSpecial Weather StatementJANAttala42 min
Jul 4, 1:04 PM CDTSpecial Weather StatementJANNoxubee41 min
Jul 4, 2:04 PM CDTSpecial Weather StatementJANWinston41 min
Jul 4, 2:05 PM CDTSpecial Weather StatementJANAttala40 min
Jul 4, 2:15 PM CDTSpecial Weather StatementJANGrenada45 min
Jul 4, 2:56 PM CDTSpecial Weather StatementJANMontgomery, Webster64 min
Jul 4, 3:05 PM CDTSpecial Weather StatementJANKemper, Neshoba55 min
Jul 4, 4:06 PM CDTFlash Flood WarningJANBolivar, Washington2 hr
Jul 4, 4:46 PM CDTFlash Flood WarningJANCarroll, Holmes, Humphreys, Leflore2 hr
Jul 4, 5:33 PM CDTSpecial Weather StatementJANSimpson42 min
Jul 4, 6:15 PM CDTSpecial Weather StatementJANScott45 min
Jul 4, 6:20 PM CDTSpecial Weather StatementJANHinds, Warren40 min
Jul 4, 6:29 PM CDTSevere Thunderstorm WarningJANRankin, Scott46 min
Jul 4, 6:44 PM CDTSpecial Weather StatementJANRankin46 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.