Alert archive / Louisiana / Flash Flood Warnings in 2024

Flash Flood Warning 42, NWS Shreveport, LA

May 30, 20245 parishes in Louisiana

NWS Shreveport, LA issued this flash flood warning at May 30, 2024, 11:51 PM CDT for 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: May 30, 2024, 11:51 PM CDT (04:51 UTC)
Expired: May 31, 2024, 2:45 AM CDT
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: None

Counties Bienville Parish, LA, Claiborne Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Union Parish, LA

The radar

The Shreveport radar (KSHV), 105 km from the middle of the area, began a volume at 04:55 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 00:00Z, 4.9 hours before the alert went out and 96 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: 1136 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.1

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 Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at May 30, 9:38 PM CDT, 2 hours 13 minutes earlier.

Area forecast discussion, May 30, 9:38 PM CDT, 2 hours 13 minutes before

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Hazardous weather outlook, May 30, 9:45 PM CDT, 2 hours 6 minutes before

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In the hours before

Special weather statement, May 30, 9:36 PM CDT, 2 hours 15 minutes before

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Local storm report, May 30, 10:05 PM CDT, 1 hour 46 minutes before

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Special weather statement, May 30, 10:29 PM CDT, 1 hour 22 minutes before

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Special weather statement, May 30, 10:45 PM CDT, 1 hour 6 minutes before

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Special weather statement, May 30, 10:52 PM CDT, 59 minutes before

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Special weather statement, May 30, 11:19 PM CDT, 32 minutes before

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The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 7:18 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	Shelby	42 min
May 30, 7:23 PM CDT	Severe Thunderstorm Warning	SHV	Harrison, Panola	52 min
May 30, 7:39 PM CDT	Severe Thunderstorm Warning	SHV	Sabine, San Augustine, Shelby	51 min
May 30, 8:31 PM CDT	Flash Flood Warning	SHV	Panola, Shelby	3 hr
May 31, 6:17 AM CDT	Special Weather Statement	SHV	Cherokee	43 min
May 31, 6:58 AM CDT	Special Weather Statement	SHV	Angelina, Cherokee, Nacogdoches	47 min
May 31, 1:41 PM CDT	River Flood Warning	SHV	Gregg, Harrison, Panola, Rusk	23 days
May 31, 1:41 PM CDT	River Flood Warning	SHV	Smith, Upshur, Wood	21 days
May 31, 1:41 PM CDT	River Flood Warning	SHV	Gregg, Smith, Upshur, Wood	22 days
May 31, 1:41 PM CDT	River Flood Warning	SHV	Gregg, Rusk	23 days
May 31, 1:43 PM CDT	River Flood Warning	SHV	Cass, Marion	20 hr
May 31, 1:44 PM CDT	River Flood Warning	SHV	Angelina, Houston, Polk, Trinity, Tyler	28 days
May 31, 1:44 PM CDT	River Flood Warning	SHV	Nacogdoches, Rusk	8 hr
May 31, 1:50 PM CDT	River Flood Warning	SHV	Nacogdoches, Rusk, San Augustine, Shelby	14 days
May 31, 1:53 PM CDT	River Flood Warning	SHV	Cherokee, Nacogdoches, Rusk, Smith	8 hr
May 30, 7:25 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne, Webster	50 min
May 30, 7:35 PM CDT	Tornado Warning	SHV	De Soto	25 min
May 30, 7:55 PM CDT	Tornado Warning	SHV	Bossier, Caddo, De Soto	35 min
May 30, 8:00 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Caddo, De Soto, Natchitoches, Red River and 1 more	45 min
May 30, 8:13 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Caddo, De Soto	47 min
May 30, 8:23 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	Natchitoches, Sabine	52 min
May 30, 8:37 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Bossier, Claiborne, Webster	38 min
May 30, 8:48 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, De Soto, Natchitoches, Red River, Winn	42 min
May 30, 8:50 PM CDT	Flash Flood Warning	SHV	Bossier, Caddo, Webster	3 hr
May 30, 9:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	SHV	Grant, Natchitoches, Winn	42 min
May 30, 9:04 PM CDT	Tornado Warning	SHV	Grant, Natchitoches	26 min
May 30, 9:26 PM CDT	Severe Thunderstorm Warning	SHV	Bienville, Claiborne, Lincoln, Webster	34 min
May 30, 9:36 PM CDT	Special Weather Statement	SHV	Bienville, Jackson	54 min
May 30, 9:46 PM CDT	Severe Thunderstorm Warning	SHV	Caldwell, Grant, Jackson, LaSalle, Winn	59 min
May 30, 10:29 PM CDT	Special Weather Statement	SHV	Jackson	61 min
May 30, 10:45 PM CDT	Special Weather Statement	SHV	Caldwell, LaSalle	30 min
May 30, 10:52 PM CDT	Special Weather Statement	SHV	Caddo, Red River	53 min
May 30, 11:07 PM CDT	Areal Flood Advisory	SHV	Bienville, Claiborne, Jackson, Lincoln, Union	3 hr
May 30, 11:19 PM CDT	Special Weather Statement	SHV	Lincoln, Ouachita, Union	56 min
May 31, 6:54 AM CDT	River Flood Warning	SHV	Webster	27 hr
May 31, 1:04 PM CDT	Special Weather Statement	SHV	LaSalle	26 min

Nearby

Flash Flood Warnings in Louisiana, 2024 Every 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.