Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 163, NWS Jackson, MS

April 5, 2023Morehouse Parish, Louisiana; Ashley County, Arkansas

NWS Jackson, MS issued this severe thunderstorm warning at Apr 5, 2023, 1:39 PM CDT for Morehouse Parish, Louisiana; Ashley County, Arkansas. 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
Apr 5, 2023, 1:39 PM CDT (18:39 UTC)
Expired
Apr 5, 2023, 2:30 PM CDT
In force
51 min
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Ashley County, AR, Morehouse Parish, LA

The radar

The Jackson/Brandon,MS radar (KDGX), 187 km from the middle of the area, began a volume at 18:38 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

Shreveport, LA (KSHV), launched 12:00Z, 6.7 hours before the alert went out and 193 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, Shreveport, LA at 12:00Z on 2023-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 905 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, Shreveport, LA at 12:00Z on 2023-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 273 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
905 J/kg
Mixed-layer CIN
-206 J/kg
Mixed-layer LCL
778 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
273 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.6

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 Apr 5, 11:28 AM CDT, 2 hours 11 minutes earlier.

Area forecast discussion, Apr 5, 11:28 AM CDT, 2 hours 11 minutes before
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Hazardous weather outlook, Apr 5, 3:37 AM CDT, 10 hours 2 minutes before
Hazardous Weather Outlook
National Weather Service Jackson MS
337 AM CDT Wed Apr 5 2023

ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025-027-034>036-
040>042-047-060845-
Ashley-Chicot-Morehouse-West Carroll-East Carroll-Richland-
Madison LA-Franklin LA-Catahoula-Tensas-Concordia-Bolivar-
Sunflower-Leflore-Carroll-Washington-Humphreys-Holmes-Issaquena-
Sharkey-Yazoo-Warren-
337 AM CDT Wed Apr 5 2023

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

.DAY ONE...Today and Tonight

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

FLOODING
THREAT...Limited
TIMING...Today through Tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...Early this morning through this afternoon

Through this afternoon, weak trees and limbs may break and fall
due to sustained winds up to 25 mph and wind gusts up to 40 mph.
High profile vehicles could also be affected.

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

This afternoon through this evening, severe thunderstorms will be
possible. Some thunderstorms could produce damaging winds up to
60 mph and hail up to the size of golfballs. A few tornadoes
cannot be ruled out.

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

This afternoon through tonight, localized heavy rainfall
associated with storms could lead to possible flash flooding,
particularly in low lying and urban areas. Minor river flooding is
also possible.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Localized heavy rain in a short time, flash flooding,
particularly in low lying and urban areas, and minor river
flooding is possible for extreme southeast Arkansas, northeast
Louisiana and portions of southwest, central to north-central
Mississippi Wednesday night through Friday.

(https://www.weather.gov/images/jan/graphicast/3.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 tonight.

MSZ030>033-037>039-043>046-049>051-054-055-062-060845-
Clay-Lowndes-Choctaw-Oktibbeha-Attala-Winston-Noxubee-Madison MS-
Leake-Neshoba-Kemper-Rankin-Scott-Newton-Copiah-Simpson-Lincoln-
337 AM CDT Wed Apr 5 2023

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

.DAY ONE...Today and Tonight

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

FLOODING
THREAT...Limited
TIMING...Today through Tonight

This afternoon through this evening, severe thunderstorms will be
possible. Some thunderstorms could produce damaging winds up to
60 mph and hail up to the size of golfballs. A few tornadoes
cannot be ruled out.

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

This afternoon through tonight, localized heavy rainfall
associated with storms could lead to possible flash flooding,
particularly in low lying and urban areas. Minor river flooding is
also possible.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Localized heavy rain in a short time, flash flooding,
particularly in low lying and urban areas, and minor river
flooding is possible for extreme southeast Arkansas, northeast
Louisiana and portions of southwest, central to north-central
Mississippi Wednesday night through Friday.

(https://www.weather.gov/images/jan/graphicast/3.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 tonight.

MSZ026-028-029-060845-
Grenada-Montgomery-Webster-
337 AM CDT Wed Apr 5 2023

This hazardous weather outlook is for portions of north central
Mississippi.

.DAY ONE...Today and Tonight

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

FLOODING
THREAT...Limited
TIMING...Today through Tonight

This afternoon through this evening, severe thunderstorms will be
possible. Some thunderstorms could produce damaging winds up to
60 mph and hail up to the size of golfballs. A few tornadoes
cannot be ruled out.

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

This afternoon through tonight, localized heavy rainfall
associated with storms could lead to possible flash flooding,
particularly in low lying and urban areas. Minor river flooding is
also possible.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Localized heavy rain in a short time, flash flooding,
particularly in low lying and urban areas, and minor river
flooding is possible for extreme southeast Arkansas, northeast
Louisiana and portions of southwest, central to north-central
Mississippi Wednesday night through Friday.

(https://www.weather.gov/images/jan/graphicast/3.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 tonight.

MSZ048-053-059>061-060845-
Hinds-Claiborne-Jefferson-Adams-Franklin MS-
337 AM CDT Wed Apr 5 2023

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

.DAY ONE...Today and Tonight

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

FLOODING
THREAT...Limited
TIMING...Today through Tonight

NON-THUNDERSTORM WINDS
THREAT...Limited
TIMING...Early this morning through this afternoon

Through this afternoon, weak trees and limbs may break and fall
due to sustained winds up to 25 mph and wind gusts up to 40 mph.
High profile vehicles could also be affected.

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

This afternoon through this evening, severe thunderstorms will be
possible. Some thunderstorms could produce damaging winds up to
60 mph and hail up to the size of golfballs. A few tornadoes
cannot be ruled out.

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

This afternoon through tonight, localized heavy rainfall
associated with storms could lead to possible flash flooding,
particularly in low lying and urban areas. Minor river flooding is
also possible.

(https://www.weather.gov/images/jan/graphicast/3.png)

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

.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 tonight.

MSZ052-057-058-065-066-072>074-060845-
Lauderdale-Jasper-Clarke-Covington-Jones-Marion-Lamar-Forrest-
337 AM CDT Wed Apr 5 2023

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

.DAY ONE...Today and Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The probability for widespread hazardous weather is low.

.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 Tuesday.

MSZ056-063-064-060845-
Smith-Lawrence-Jefferson Davis-
337 AM CDT Wed Apr 5 2023

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

.DAY ONE...Today and Tonight

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

This afternoon through this evening, severe thunderstorms will be
possible. Some thunderstorms could produce damaging winds up to
60 mph and hail up to the size of golfballs. A few tornadoes
cannot be ruled out.

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

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The probability for widespread hazardous weather is low.

.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 tonight.

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.

*FLOODING*
Extreme...Widespread and significant flooding is likely.
Significant...Widespread flash flooding is likely
 and significant flooding is possible.
Elevated...Areas of flash flooding likely.
Limited...Localized flash flooding is possible.

*NON-THUNDERSTORM WINDS*
Significant...Scattered downed trees and power lines are likely
 due to sustained winds over 35 mph and potential wind gusts
 greater than 50 mph.
Elevated...A few downed trees and power lines are possible due
 to sustained winds ranging from 25 to 35 mph and potential for
 wind gusts over 40 mph. Travel will also be difficult for those
 in high profile vehicles.
Limited...Weak trees and limbs may break and fall due to
 sustained winds up to 25 mph and wind gusts around 35 mph.
 High profile vehicles could also be affected.

...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

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/
...ADDITIONAL URLS FOR FLOODING ISSUES...

Current Watches and Warnings...
   https://www.weather.gov/jan/safe_HeavyRain

Observed Precipitation Images...
   https://www.weather.gov/jan/precipmaps

River Forecast Center...
   https://www.weather.gov/lmrfc/
Significant River Flood Outlook...
   https://www.wpc.ncep.noaa.gov/nationalfloodoutlook/index.html
Day 1 through 3 Excessive Rainfall...
   https://www.wpc.ncep.noaa.gov/qpf/excess_rain.shtml
Excessive Rainfall Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpferd.html
Day 1 through 7 QPF...
   https://www.wpc.ncep.noaa.gov/qpf/qpf2.shtml
QPF Discussion...
   https://www.wpc.ncep.noaa.gov/discussions/qpfpfd.html

In the hours before

Special weather statement, Apr 5, 1:13 PM CDT, 26 minutes before
Special Weather Statement
National Weather Service Jackson MS
113 PM CDT Wed Apr 5 2023

ARZ074-LAZ007-051915-
Ashley AR-Morehouse LA-
113 PM CDT Wed Apr 5 2023

...A strong thunderstorm will impact portions of southern Ashley
County in southeastern Arkansas and northwestern Morehouse Parishes
through 215 PM CDT...

At 112 PM CDT, Doppler radar was tracking a strong thunderstorm near
Sterlington, or 9 miles north of Claiborne, moving northeast at 40
mph.

HAZARD...Winds in excess of 40 mph and pea 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...
  Beekman around 150 PM CDT.
  Crossett around 200 PM CDT.
  Berlin around 210 PM CDT.

Other locations impacted by this storm include Mer Rouge and Bonita.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3315 9211 3317 9212 3302 9146 3266 9194
      3271 9197 3271 9204 3270 9203 3269 9205
      3273 9207 3274 9205 3276 9206 3284 9206
      3287 9208 3297 9208 3301 9207 3303 9209
      3303 9211 3307 9211 3310 9214
TIME...MOT...LOC 1812Z 215DEG 34KT 3268 9218

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

22

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 2:39 PM CDTSevere Thunderstorm WarningJANHumphreys, Issaquena, Sharkey, Washington30 min
Apr 5, 2:53 PM CDTSevere Thunderstorm WarningJANIssaquena52 min
Apr 5, 2:56 PM CDTSpecial Weather StatementJANHumphreys64 min
Apr 5, 3:07 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys38 min
Apr 5, 3:20 PM CDTSpecial Weather StatementJANCarroll, Montgomery40 min
Apr 5, 3:35 PM CDTSevere Thunderstorm WarningJANCarroll, Grenada, Montgomery, Webster40 min
Apr 5, 3:42 PM CDTSpecial Weather StatementJANCarroll33 min
Apr 5, 3:58 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin62 min
Apr 5, 4:08 PM CDTSevere Thunderstorm WarningJANChoctaw, Clay, Montgomery, Webster24 min
Apr 5, 4:20 PM CDTSpecial Weather StatementJANChoctaw25 min
Apr 5, 4:36 PM CDTSpecial Weather StatementJANClay24 min
Apr 5, 4:52 PM CDTSpecial Weather StatementJANHinds38 min
Apr 5, 4:57 PM CDTSevere Thunderstorm WarningJANHinds, Madison45 min
Apr 5, 5:00 PM CDTSpecial Weather StatementJANMadison45 min
Apr 5, 5:04 PM CDTSpecial Weather StatementJANAttala26 min
Apr 5, 5:34 PM CDTSpecial Weather StatementJANHinds41 min
Apr 5, 5:48 PM CDTSpecial Weather StatementJANMadison, Rankin42 min
Apr 5, 5:56 PM CDTSpecial Weather StatementJANHinds49 min
Apr 5, 6:03 PM CDTSevere Thunderstorm WarningJANHinds, Madison, Rankin42 min
Apr 5, 6:32 PM CDTSpecial Weather StatementJANWarren43 min
Apr 5, 6:39 PM CDTSpecial Weather StatementJANRankin51 min
Apr 5, 1:13 PM CDTSpecial Weather StatementJANMorehouse62 min
Apr 5, 2:17 PM CDTSpecial Weather StatementJANEast Carroll58 min
Apr 5, 2:20 PM CDTSpecial Weather StatementJANWest Carroll55 min
Apr 5, 5:15 PM CDTSpecial Weather StatementJANCatahoula, Franklin60 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2023Severe Thunderstorm Warnings in Arkansas, 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.