Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 155, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 25, 2021, 3:16 PM CDT for Harrison County, Panola County, Texas. It was in force for 44 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 25, 2021, 3:16 PM CDT (20:16 UTC)
- Expired
- May 25, 2021, 4:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Harrison County, TX, Panola County, TX
The radar
The Shreveport radar (KSHV), 36 km from the middle of the area, began a volume at 20:17 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 25, 3:27 PM CDT | TSTM WND DMG | 10 S Marshall, TX | TREES DOWN ON HOMER COOPER RD OFF OF HIGHWAY 59. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 8.3 hours before the alert went out and 45 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.
- Mixed-layer CAPE
- 12 J/kg
- Mixed-layer CIN
- -179 J/kg
- Mixed-layer LCL
- 1121 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
843 WUUS54 KSHV 252016 SVRSHV TXC203-365-252100- /O.NEW.KSHV.SV.W.0155.210525T2016Z-210525T2100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Shreveport LA 316 PM CDT Tue May 25 2021 The National Weather Service in Shreveport has issued a * Severe Thunderstorm Warning for... Southeastern Harrison County in northeastern Texas... Northeastern Panola County in northeastern Texas... * Until 400 PM CDT. * At 315 PM CDT, severe thunderstorms were located along a line extending from 7 miles northwest of Marshall to near Beckville, moving northeast at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Marshall, Carthage, Waskom, Beckville, Deberry, Elysian Fields, Scottsville, Nesbitt, Front, Darco, Leigh, Jonesville and Midyett. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3268 9405 3215 9406 3218 9446 3263 9451 TIME...MOT...LOC 2015Z 241DEG 33KT 3258 9446 3218 9445 HAIL...<.75IN WIND...60MPH $$ 04
4 follow-up statements
391 WWUS54 KSHV 252027 SVSSHV Severe Weather Statement National Weather Service Shreveport LA 327 PM CDT Tue May 25 2021 TXC203-365-252100- /O.CON.KSHV.SV.W.0155.000000T0000Z-210525T2100Z/ Harrison TX-Panola TX- 327 PM CDT Tue May 25 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTHEASTERN HARRISON AND NORTHEASTERN PANOLA COUNTIES... At 326 PM CDT, severe thunderstorms were located along a line extending from Marshall to 6 miles north of Carthage, moving east at 35 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Marshall, Waskom, Deberry, Elysian Fields, Scottsville, Jonesville and Leigh. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3268 9405 3228 9406 3223 9437 3264 9441 TIME...MOT...LOC 2026Z 248DEG 29KT 3254 9435 3224 9434 HAIL...0.88IN WIND...60MPH $$ 04
235 WWUS54 KSHV 252039 SVSSHV Severe Weather Statement National Weather Service Shreveport LA 339 PM CDT Tue May 25 2021 TXC203-365-252100- /O.CON.KSHV.SV.W.0155.000000T0000Z-210525T2100Z/ Harrison TX-Panola TX- 339 PM CDT Tue May 25 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTHEASTERN HARRISON AND NORTHEASTERN PANOLA COUNTIES... At 338 PM CDT, severe thunderstorms were located along a line extending from near Karnack to near Elysian Fields to Deberry, moving northeast at 40 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Marshall, Waskom, Deberry, Elysian Fields, Scottsville, Jonesville and Leigh. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3268 9405 3228 9406 3223 9437 3265 9431 TIME...MOT...LOC 2038Z 243DEG 37KT 3260 9416 3243 9413 3230 9415 HAIL...0.75IN WIND...60MPH $$ 04
557 WWUS54 KSHV 252048 SVSSHV Severe Weather Statement National Weather Service Shreveport LA 348 PM CDT Tue May 25 2021 TXC203-365-252100- /O.CON.KSHV.SV.W.0155.000000T0000Z-210525T2100Z/ Harrison TX-Panola TX- 348 PM CDT Tue May 25 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTHEASTERN HARRISON AND NORTHEASTERN PANOLA COUNTIES... At 347 PM CDT, severe thunderstorms were located along a line extending from near Karnack to near Waskom to near Deberry, moving northeast at 40 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Waskom, Deberry, Elysian Fields, Scottsville, Jonesville and Leigh. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 3268 9405 3228 9406 3225 9422 3266 9424 TIME...MOT...LOC 2047Z 241DEG 33KT 3262 9411 3245 9408 3232 9410 HAIL...0.75IN WIND...60MPH $$ 04
496 WWUS54 KSHV 252059 SVSSHV Severe Weather Statement National Weather Service Shreveport LA 359 PM CDT Tue May 25 2021 TXC203-365-252107- /O.EXP.KSHV.SV.W.0155.000000T0000Z-210525T2100Z/ Harrison TX-Panola TX- 359 PM CDT Tue May 25 2021 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HARRISON AND NORTHEASTERN PANOLA COUNTIES WILL EXPIRE AT 400 PM CDT... The strongest winds with storms which prompted the warning have moved out of the warned area. Therefore, the warning will be allowed to expire. However gusty winds are still possible with these thunderstorms as they exit eastern Harrison and Panola counties over the next 15 minutes. LAT...LON 3268 9405 3228 9406 3225 9422 3266 9424 TIME...MOT...LOC 2057Z 241DEG 33KT 3265 9405 3248 9402 3235 9404 $$ 04
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 8:50 AM CDT | River Flood Warning | SHV | Panola, Shelby | 21 days |
| May 25, 9:10 AM CDT | River Flood Warning | SHV | Cass, Harrison, Marion | 8 days |
| May 25, 1:26 PM CDT | Special Weather Statement | SHV | Smith, Upshur, Wood | 64 min |
| May 25, 2:30 PM CDT | Special Weather Statement | SHV | Gregg, Harrison, Marion, Panola, Rusk, Upshur | 60 min |
| May 25, 3:33 PM CDT | Special Weather Statement | SHV | Panola | 42 min |
| May 25, 3:45 PM CDT | Severe Thunderstorm Warning | SHV | Harrison | 45 min |
| May 25, 4:16 PM CDT | Areal Flood Advisory | SHV | Angelina, Cherokee, Nacogdoches | 119 min |
| May 25, 5:04 PM CDT | Areal Flood Advisory | SHV | Angelina, Nacogdoches, San Augustine | 116 min |
| May 25, 5:12 PM CDT | Areal Flood Advisory | SHV | Nacogdoches, Panola, Shelby | 2 hr |
| May 25, 5:30 PM CDT | Special Weather Statement | SHV | Sabine | 45 min |
| May 25, 6:29 PM CDT | Areal Flood Advisory | SHV | Sabine | 2 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.