Alert archive / Louisiana / Flash Flood Warnings in 2025

Flash Flood Warning 28, NWS Shreveport, LA

April 20, 2025Panola County, Shelby County, Texas; 4 parishes in Louisiana

NWS Shreveport, LA issued this flash flood warning at Apr 20, 2025, 8:58 PM CDT for Panola County, Shelby County, Texas; 4 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: Apr 20, 2025, 8:58 PM CDT (01:58 UTC)
Expired: Apr 21, 2025, 12:00 AM CDT
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: None

Counties Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Webster Parish, LA, Panola County, TX, Shelby County, TX

The radar

The Shreveport radar (KSHV), 13 km from the middle of the area, began a volume at 01:58 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

Lake Charles Mun, LA (KLCH), launched 00:00Z, 2.0 hours before the alert went out and 253 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: 830 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 923 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.3
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 Apr 20, 6:37 PM CDT, 2 hours 21 minutes earlier.

Area forecast discussion, Apr 20, 6:37 PM CDT, 2 hours 21 minutes before

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In the hours before

Special weather statement, Apr 20, 3:44 PM CDT, 5 hours 14 minutes before

Special Weather Statement
National Weather Service Shreveport LA
344 PM CDT Sun Apr 20 2025

ARZ050-051-059-060-070-TXZ097-110>112-202145-
Howard AR-Hempstead AR-Sevier AR-Little River AR-Miller AR-Cass TX-
Camp TX-Bowie TX-Morris TX-
344 PM CDT Sun Apr 20 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN LITTLE RIVER...
HEMPSTEAD...NORTHERN MILLER...SOUTHEASTERN SEVIER...SOUTHEASTERN
HOWARD...CASS...SOUTHEASTERN BOWIE...SOUTHEASTERN MORRIS AND
SOUTHEASTERN CAMP COUNTIES THROUGH 445 PM CDT...

At 340 PM CDT, Doppler radar was tracking a strong thunderstorm near
New Boston, moving northeast at 45 mph.

HAZARD...Wind gusts up to 40 mph and pea 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.

Locations impacted include...
Bright Star, Daingerfield, McNab, Redwater, Red Lick, Tollette,
Genoa, Ogden, Lone Star, Blevins, Bloomburg, Mount Pleasant, Queen
City, Wilton, Nashville, Jenkins, Marietta, Texarkana, Hervey, and
Wake Village.

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.

A Tornado Watch remains in effect until 700 PM CDT for southwestern
Arkansas...and northeastern Texas.

&&

LAT...LON 3398 9365 3396 9362 3395 9353 3396 9346
      3386 9346 3361 9359 3348 9370 3348 9372
      3346 9374 3345 9373 3314 9400 3290 9472
      3291 9481 3369 9431 3402 9384
TIME...MOT...LOC 2040Z 227DEG 38KT 3340 9437

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

16

Special weather statement, Apr 20, 4:32 PM CDT, 4 hours 26 minutes before

Special Weather Statement
National Weather Service Shreveport LA
432 PM CDT Sun Apr 20 2025

ARZ072-073-LAZ003-004-202230-
Union AR-Columbia AR-Claiborne LA-Webster LA-
432 PM CDT Sun Apr 20 2025

...A STRONG THUNDERSTORM WILL IMPACT UNION AND EASTERN COLUMBIA
COUNTIES...NORTHEASTERN WEBSTER AND CLAIBORNE PARISHES THROUGH 530 PM
CDT...

At 432 PM CDT, Doppler radar was tracking a strong thunderstorm near
Homer, moving northeast at 45 mph.

HAZARD...Wind gusts up to 40 mph and pea 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.

Locations impacted include...
Norphlet, Leton, Calion, Newell, Mount Holly, Laughlin, El Dorado,
Atlanta, Wesson, Kenova, Spotville, Medlock, Lake Clairborne,
Catesville, Hew Hope, Ebenezer, Calhoun, Village, Lisbon, and Holly
Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

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.

A Tornado Watch remains in effect until 700 PM CDT for southwestern
Arkansas...and northwestern Louisiana.

&&

LAT...LON 3301 9265 3301 9273 3294 9272 3259 9304
      3273 9334 3345 9314 3345 9312 3338 9312
      3337 9279 3339 9276 3336 9266 3336 9260
      3337 9259 3336 9254 3332 9252 3333 9248
      3332 9246 3329 9247 3328 9246 3327 9241
TIME...MOT...LOC 2132Z 217DEG 40KT 3275 9314

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

16

Special weather statement, Apr 20, 4:45 PM CDT, 4 hours 13 minutes before

Special Weather Statement
National Weather Service Shreveport LA
445 PM CDT Sun Apr 20 2025

ARZ050-051-059>061-070-071-TXZ097-112-202245-
Howard AR-Hempstead AR-Lafayette AR-Sevier AR-Little River AR-
Miller AR-Nevada AR-Cass TX-Bowie TX-
445 PM CDT Sun Apr 20 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN LITTLE RIVER...
HEMPSTEAD...MILLER...SOUTHEASTERN SEVIER...NORTHERN LAFAYETTE...
EASTERN HOWARD...NEVADA...NORTHERN CASS AND SOUTHEASTERN BOWIE
COUNTIES THROUGH 545 PM CDT...

At 445 PM CDT, Doppler radar was tracking a strong thunderstorm near
Mandeville, or near Texarkana, moving northeast at 45 mph.

HAZARD...Wind gusts up to 50 mph and pea 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.

Locations impacted include...
Bright Star, Stamps, Buckner, Fouke, Bodcaw, Falcon, McNab, Redwater,
Red Lick, Tollette, Genoa, Brightstar, Ogden, Piney Grove, Corinth,
Blevins, Bloomburg, Mount Pleasant, Queen City, and Sutton.

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.

A Tornado Watch remains in effect until 700 PM CDT for southwestern
Arkansas...and northeastern Texas.

&&

LAT...LON 3419 9392 3418 9382 3401 9382 3401 9375
      3398 9365 3396 9362 3395 9353 3396 9347
      3395 9342 3396 9338 3390 9330 3384 9329
      3382 9320 3344 9336 3343 9338 3338 9340
      3308 9386 3308 9461 3354 9422 3423 9393
TIME...MOT...LOC 2145Z 217DEG 40KT 3353 9400

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

16

Special weather statement, Apr 20, 5:27 PM CDT, 3 hours 31 minutes before

Special Weather Statement
National Weather Service Shreveport LA
527 PM CDT Sun Apr 20 2025

TXZ137-138-149>153-165-202330-
Gregg TX-Cherokee TX-Panola TX-Harrison TX-Angelina TX-
Nacogdoches TX-Rusk TX-Shelby TX-
527 PM CDT Sun Apr 20 2025

...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN HARRISON...PANOLA...
RUSK...NACOGDOCHES...NORTHWESTERN SHELBY...NORTHWESTERN ANGELINA...
SOUTHEASTERN GREGG AND CENTRAL CHEROKEE COUNTIES THROUGH 630 PM
CDT...

At 527 PM CDT, Doppler radar was tracking a strong thunderstorm near
New Salem, or 14 miles south of Henderson, moving northeast at 40
mph.

HAZARD...Wind gusts up to 40 mph and pea 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.

Locations impacted include...
Deberry, Reklaw, Front, Elysian Fields, Gallatin, Central,
Nacogdoches, Fairplay, Carthage, Pinehill, Redland, Lilbert, Midyett,
Chalk Hill, Tatum, Dotson, Alto, Trawick, Waskom, and Chapman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

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.

A Tornado Watch remains in effect until 700 PM CDT for northwestern
Louisiana...and northeastern Texas.

&&

LAT...LON 3118 9484 3126 9490 3128 9488 3132 9490
      3134 9496 3138 9495 3144 9500 3147 9510
      3152 9510 3159 9517 3158 9526 3168 9528
      3172 9534 3214 9501 3214 9499 3217 9499
      3258 9465 3258 9404 3228 9404
TIME...MOT...LOC 2227Z 227DEG 33KT 3195 9486

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

16

Special weather statement, Apr 20, 6:33 PM CDT, 2 hours 25 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
Apr 20, 7:29 PM CDT	Special Weather Statement	SHV	Angelina, Nacogdoches, Panola, San Augustine, Shelby	76 min
Apr 20, 8:21 PM CDT	Flash Flood Warning	SHV	Panola	3 hr
Apr 20, 7:20 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Webster	37 min
Apr 20, 8:02 PM CDT	Special Weather Statement	SHV	Webster	58 min
Apr 20, 8:09 PM CDT	Severe Thunderstorm Warning	SHV	Bossier, Caddo, De Soto	66 min
Apr 20, 9:25 PM CDT	Severe Thunderstorm Warning	SHV	Claiborne	35 min
Apr 20, 7:03 PM CDT	Special Weather Statement	SHV	Columbia	57 min

Nearby

Flash Flood Warnings in Louisiana, 2025 Flash Flood Warnings in Texas, 2025 Every flash flood warning in 2025

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.