Alert archive / Louisiana / Flash Flood Warnings in 2024

Flash Flood Warning 25, NWS Jackson, MS

March 25, 2024Issaquena County, Mississippi; 5 parishes in Louisiana

NWS Jackson, MS issued this flash flood warning at Mar 25, 2024, 7:23 PM CDT for Issaquena County, Mississippi; 5 parishes in Louisiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 25, 2024, 7:23 PM CDT (00:23 UTC)
Expired
Mar 25, 2024, 10:36 PM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Storm-based polygon
Flood severity
None

Counties East Carroll Parish, LA, Franklin Parish, LA, Madison Parish, LA, Richland Parish, LA, West Carroll Parish, LA, Issaquena County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 135 km from the middle of the area, began a volume at 00:26 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

Jackson, MS (KJAN), launched 00:00Z, 0.4 hours before the alert went out and 125 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 00:00Z on 2024-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 16 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 00:00Z on 2024-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 456 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
16 J/kg
Mixed-layer CIN
-155 J/kg
Mixed-layer LCL
597 m above ground
0-6 km bulk shear
81 kt
0-1 km storm-relative helicity
456 m²/s²
0-3 km storm-relative helicity
787 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Mar 25, 7:00 PM CDT, 23 minutes earlier.

Area forecast discussion, Mar 25, 7:00 PM CDT, 23 minutes before
Area Forecast Discussion
National Weather Service Jackson MS
700 PM CDT Mon Mar 25 2024

...New AVIATION...

.DISCUSSION...
Issued at 456 PM CDT Mon Mar 25 2024

Through tonight:

All continues to be on track concerning the near term severe
weather event as a linear convective system evolves over northeast
Louisiana and southeast Arkansas ahead of an approaching
shortwave trough. The warm sector environment in this area is
characterized by extreme wind shear with effective SRH of 500-700
m2/s2, modest instability with ~500 to 1000 j/kg of MLCAPE, and
an influx of mid/upper 60s sfc dewpoints. Expect the strongest
convergence zone and this associated environment to shift east
through tonight across central/eastern MS, and timing in our
graphic has been updated to reflect a slightly slower trend in the
CAM guidance. An enhanced risk for mesovortices producing damaging
wind gusts/tornadoes continues to be the primary concern in the
messaging, and the extreme shear will promote the potential for a
few strong tornadoes as well. In addition, we are also maintaining
the wind advisory through the evening along with a hazard graphic
for localized flash flooding. /EC/

Tuesday through Sunday: Following the early week system, a dry and
cool airmass will persist through mid week. The airmass will
modify as a ridge builds over the central CONUS late this week
into the weekend, but we should maintain rain-free weather. /EC/

&&

.AVIATION...
(00Z TAFS)
Issued at 656 PM CDT Mon Mar 25 2024

Expect strong gradient winds, the potential for +TSRA, and MVFR
category ceilings to be the primary concerns this forecast period
until the squall line passes. VFR conditions will return from west
to east late tonight and Tuesday morning. /EC/

&&

.PRELIMINARY POINT TEMPS/POPS...
Jackson       57  72  45  66 / 100  10   0   0
Meridian      57  77  47  69 / 100  40   0   0
Vicksburg     53  69  43  64 / 100   0   0   0
Hattiesburg   59  79  49  73 /  90  30   0   0
Natchez       54  71  45  66 /  90   0   0   0
Greenville    53  65  42  61 / 100   0   0   0
Greenwood     55  68  42  64 / 100   0   0   0

&&

.JAN WATCHES/WARNINGS/ADVISORIES...
MS...Wind Advisory until 1 AM CDT Tuesday for MSZ018-019-025>066-
     072>074.

LA...Wind Advisory until 1 AM CDT Tuesday for LAZ007>009-015-016-
     023>026.

AR...Wind Advisory until 1 AM CDT Tuesday for ARZ074-075.

&&

EC/EC/EC

In the hours before

Local storm report, Mar 25, 5:20 PM CDT, 2 hours 3 minutes before
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Local storm report, Mar 25, 5:30 PM CDT, 1 hour 53 minutes before
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Special weather statement, Mar 25, 6:45 PM CDT, 38 minutes before
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Local storm report, Mar 25, 6:55 PM CDT, 28 minutes before
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Special weather statement, Mar 25, 6:55 PM CDT, 28 minutes before
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Local storm report, Mar 25, 7:17 PM CDT, 6 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 7:10 PM CDTSevere Thunderstorm WarningJANIssaquena, Sharkey50 min
Mar 25, 7:13 PM CDTFlash Flood WarningJANWashington3 hr
Mar 25, 7:56 PM CDTSpecial Weather StatementJANHolmes, Yazoo79 min
Mar 25, 8:10 PM CDTSpecial Weather StatementJANClaiborne, Hinds, Madison80 min
Mar 25, 8:16 PM CDTSevere Thunderstorm WarningJANHolmes, Humphreys, Yazoo44 min
Mar 25, 8:31 PM CDTSevere Thunderstorm WarningJANClaiborne, Hinds, Madison, Warren59 min
Mar 25, 8:33 PM CDTSpecial Weather StatementJANCarroll, Grenada, Leflore, Montgomery57 min
Mar 25, 9:07 PM CDTTornado WarningJANHinds, Madison, Rankin38 min
Mar 25, 9:40 PM CDTTornado WarningJANLeake, Madison23 min
Mar 25, 9:50 PM CDTSevere Thunderstorm WarningJANCopiah, Franklin, Jefferson, Lincoln55 min
Mar 25, 9:55 PM CDTSpecial Weather StatementJANRankin35 min
Mar 25, 10:06 PM CDTFlash Flood WarningJANHinds, Madison3 hr
Mar 25, 10:43 PM CDTFlash Flood WarningJANRankin3 hr
Mar 25, 10:53 PM CDTSpecial Weather StatementJANScott, Simpson, Smith37 min
Mar 25, 11:10 PM CDTSevere Thunderstorm WarningJANLeake, Neshoba, Newton, Scott65 min
Mar 26, 12:21 AM CDTSpecial Weather StatementJANCovington, Jasper, Jefferson Davis54 min
Mar 26, 12:45 AM CDTSevere Thunderstorm WarningJANCovington, Jasper, Jones, Smith34 min
Mar 26, 8:40 AM CDTRiver Flood WarningJANMadison, Yazoo6 days
Mar 26, 8:40 AM CDTRiver Flood WarningJANHinds, Warren5 days
Mar 26, 8:52 AM CDTRiver Flood WarningJANCopiah, Simpson3 days
Mar 26, 8:52 AM CDTRiver Flood WarningJANLawrence4 days
Mar 26, 8:52 AM CDTRiver Flood WarningJANMarion36 hr

Nearby

Flash Flood Warnings in Louisiana, 2024Flash Flood Warnings in Mississippi, 2024Every flash flood 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.