Alert archive / Louisiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 99, NWS Jackson, MS

April 18, 2024Morehouse Parish, Louisiana; Ashley County, Arkansas

NWS Jackson, MS issued this severe thunderstorm warning at Apr 18, 2024, 8:57 AM CDT for Morehouse Parish, Louisiana; Ashley County, Arkansas. It was in force for 48 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 18, 2024, 8:57 AM CDT (13:57 UTC)
Expired: Apr 18, 2024, 9:45 AM CDT
In force: 48 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 13:56 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, 2.0 hours before the alert went out and 177 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 59 J/kg
Mixed-layer CIN: -442 J/kg
Mixed-layer LCL: 1159 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -60 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 Apr 18, 7:11 AM CDT, 1 hour 46 minutes earlier.

Area forecast discussion, Apr 18, 7:11 AM CDT, 1 hour 46 minutes before

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In the hours before

Special weather statement, Apr 18, 8:27 AM CDT, 30 minutes before

Special Weather Statement
National Weather Service Jackson MS
827 AM CDT Thu Apr 18 2024

LAZ007-181400-
Morehouse LA-
827 AM CDT Thu Apr 18 2024

...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN MOREHOUSE PARISH
THROUGH 900 AM CDT...

At 827 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles north of Sterlington, or 11 miles west of Bastrop, moving
northeast at 35 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 hail damage to vegetation is
         possible.

This strong thunderstorm will be near...
  Bastrop around 830 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3291 9208 3293 9207 3300 9200 3276 9183
      3270 9203 3271 9204 3270 9204 3270 9206
      3273 9207 3274 9205 3276 9206 3279 9205
      3282 9207 3284 9206 3287 9208
TIME...MOT...LOC 1327Z 241DEG 30KT 3280 9211

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

NF

Special weather statement, Apr 18, 8:54 AM CDT, 3 minutes before

Special Weather Statement
National Weather Service Jackson MS
854 AM CDT Thu Apr 18 2024

ARZ074-LAZ007-181430-
Ashley AR-Morehouse LA-
854 AM CDT Thu Apr 18 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTH CENTRAL ASHLEY COUNTY IN
SOUTHEASTERN ARKANSAS AND NORTHWESTERN MOREHOUSE PARISHES THROUGH 930
AM CDT...

At 853 AM CDT, Doppler radar was tracking a strong thunderstorm near
Beekman, or 9 miles north of Bastrop, moving northeast at 35 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 hail damage to vegetation is
         possible.

This strong thunderstorm will be near...
  Beekman around 900 AM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3281 9197 3292 9204 3312 9184 3287 9166
TIME...MOT...LOC 1353Z 238DEG 30KT 3291 9195

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

NF

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 18, 9:43 AM CDT	Severe Thunderstorm Warning	JAN	Issaquena, Washington	47 min
Apr 18, 12:23 PM CDT	Special Weather Statement	JAN	Sharkey	37 min
Apr 18, 12:48 PM CDT	Special Weather Statement	JAN	Sunflower	27 min
Apr 18, 2:26 PM CDT	Special Weather Statement	JAN	Washington	64 min
Apr 18, 2:43 PM CDT	Flash Flood Warning	JAN	Issaquena, Sharkey, Washington	3 hr
Apr 18, 2:51 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Humphreys, Sharkey, Washington	54 min
Apr 18, 3:03 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Yazoo	42 min
Apr 18, 3:36 PM CDT	Severe Thunderstorm Warning	JAN	Holmes, Madison, Yazoo	54 min
Apr 18, 3:55 PM CDT	Severe Thunderstorm Warning	JAN	Issaquena	65 min
Apr 18, 4:25 PM CDT	Severe Thunderstorm Warning	JAN	Attala, Leake, Madison	38 min
Apr 18, 4:49 PM CDT	Severe Thunderstorm Warning	JAN	Humphreys, Sharkey, Yazoo	56 min
Apr 18, 5:13 PM CDT	Tornado Warning	JAN	Sharkey, Yazoo	47 min
Apr 18, 5:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	JAN	Madison, Yazoo	63 min
Apr 18, 6:40 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison	35 min
Apr 18, 8:27 AM CDT	Special Weather Statement	JAN	Morehouse	33 min
Apr 18, 8:54 AM CDT	Special Weather Statement	JAN	Morehouse	36 min
Apr 18, 10:26 AM CDT	Special Weather Statement	JAN	Morehouse	34 min
Apr 18, 10:41 AM CDT	Severe Thunderstorm Warning	JAN	Morehouse	47 min
Apr 18, 11:00 AM CDT	Flash Flood Warning	JAN	East Carroll, Morehouse, West Carroll	5 hr
Apr 18, 3:29 PM CDT	Special Weather Statement	JAN	West Carroll	61 min
Apr 18, 9:24 AM CDT	Special Weather Statement	JAN	Chicot	51 min
Apr 18, 1:51 PM CDT	Flash Flood Warning	JAN	Chicot	6 hr

Nearby

Severe Thunderstorm Warnings in Louisiana, 2024 Severe Thunderstorm Warnings in Arkansas, 2024 Every severe thunderstorm warning in 2024

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.