Alert archive / Louisiana / Severe Thunderstorm Warnings in 2019
Severe Thunderstorm Warning 138, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Apr 18, 2019, 10:19 AM CDT for 4 parishes in Louisiana. It was in force for 37 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, 2019, 10:19 AM CDT (15:19 UTC)
- Expired
- Apr 18, 2019, 10:56 AM CDT
- In force
- 37 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Caldwell Parish, LA, Jackson Parish, LA, Ouachita Parish, LA, Winn Parish, LA
The radar
The Ft Polk radar (KPOE), 130 km from the middle of the area, began a volume at 15:20 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 (KBAD), launched 12:00Z, 3.3 hours before the alert went out and 134 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 645 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- -199 m²/s²
- 0-3 km storm-relative helicity
- -108 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 18, 8:49 AM CDT, 1 hour 30 minutes earlier.
Area forecast discussion, Apr 18, 8:49 AM CDT, 1 hour 30 minutes before
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Hazardous Weather Outlook National Weather Service Shreveport LA 603 AM CDT Thu Apr 18 2019 ARZ050-051-059-060-070-OKZ077-TXZ096-097-108>112-124-125-136-149- 165-191115- Sevier-Howard-Little River-Hempstead-Miller-McCurtain-Red River- Bowie-Franklin-Titus-Camp-Morris-Cass-Wood-Upshur-Smith-Cherokee- Angelina- 603 AM CDT Thu Apr 18 2019 This Hazardous Weather Outlook is for portions of southwest Arkansas, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...Today and Tonight... Heavy rain with embedded thunderstorms will move through the area this morning as low pressure and its associated cold front move across the area. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... The possibility of thunderstorms will return Monday into the mid- week as the next upper level disturbance approaches from the northwest. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. ARZ061-071-072-LAZ001>003-010-017-TXZ126-137-138-150>153-166-167- 191115- Nevada-Lafayette-Columbia-Caddo-Bossier-Webster-De Soto-Sabine- Marion-Gregg-Harrison-Rusk-Panola-Nacogdoches-Shelby- San Augustine- 603 AM CDT Thu Apr 18 2019 This Hazardous Weather Outlook is for portions of southwest Arkansas, northwest Louisiana, east Texas and northeast Texas. .DAY ONE...Today and Tonight... Strong thunderstorms will move through the area this morning as low pressure and its associated cold front move across the area. Locally heavy rainfall may lead to flash flooding, especially where soils remain very wet from recent heavy rains in southern Arkansas and northern Louisiana. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... The possibility of thunderstorms will return Monday into the mid- week as the next upper level disturbance approaches from the northwest. .SPOTTER INFORMATION STATEMENT... Spotter activation will no longer be needed after the mid-morning hours today. ARZ073-LAZ004>006-011>014-018>022-191115- Union-Claiborne-Lincoln-Red River-Bienville-Jackson-Ouachita- Natchitoches-Winn-Grant-Caldwell-La Salle- 603 AM CDT Thu Apr 18 2019 This Hazardous Weather Outlook is for portions of south central Arkansas, north central Louisiana and northwest Louisiana. .DAY ONE...Today and Tonight... Strong to severe thunderstorms will move through the area during the mid to late morning hours as low pressure and its associated cold front move across the area. The primary threat will be damaging winds with thunderstorms, although large hail and an isolated tornado cannot be ruled out. Locally heavy rainfall may lead to flash flooding, especially where soils remain very wet from recent heavy rains in southern Arkansas and northern Louisiana. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... The possibility of thunderstorms will return Monday into the mid- week as the next upper level disturbance approaches from the northwest. .SPOTTER INFORMATION STATEMENT... Spotters will be needed until this afternoon. 04
In the hours before
Special weather statement, Apr 18, 5:27 AM CDT, 4 hours 52 minutes before
Special Weather Statement
National Weather Service Shreveport LA
527 AM CDT Thu Apr 18 2019
LAZ001>003-012-181115-
Bossier LA-Bienville LA-Caddo LA-Webster LA-
527 AM CDT Thu Apr 18 2019
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN WEBSTER...SOUTHEASTERN
CADDO...WEST CENTRAL BIENVILLE AND SOUTHERN BOSSIER PARISHES UNTIL
615 AM CDT...
At 526 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 6 miles northwest of Fosters to near Shreveport
to 6 miles north of Stonewall. Movement was east at 30 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Shreveport, Bossier City, Minden, Haughton, Sibley, Doyline,
Dubberly, Dixie Inn, Heflin, Eastwood, Fosters, Ferguson, Curtis,
Fillmore, Bodcau, Plum Orchard Landing, Koran, Gilark, Noles Landing
and Lake Bistineau North.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
These storms 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.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
office in Shreveport.
&&
LAT...LON 3253 9321 3234 9336 3231 9366 3232 9369
3233 9370 3232 9371 3235 9377 3233 9384
3238 9382 3249 9380 3259 9382 3275 9329
3262 9322
TIME...MOT...LOC 1026Z 252DEG 25KT 3259 9376 3248 9374 3241 9374 3235
9379
09Special weather statement, Apr 18, 6:08 AM CDT, 4 hours 11 minutes before
Special Weather Statement
National Weather Service Shreveport LA
608 AM CDT Thu Apr 18 2019
LAZ010-017-TXZ153-166-167-181200-
De Soto LA-Sabine LA-Sabine TX-San Augustine TX-Shelby TX-
608 AM CDT Thu Apr 18 2019
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN DE SOTO AND SABINE
PARISHES...SOUTHEASTERN SHELBY...EASTERN SAN AUGUSTINE AND SABINE
COUNTIES UNTIL 700 AM CDT...
At 608 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near San Augustine to near Rosevine to near
Pineland to Browndell. Movement was northeast at 35 mph.
Wind gusts up to 50 mph will be possible with these storms.
Locations impacted include...
Milam, Many, San Augustine, Zwolle, Hemphill, Pineland, Converse,
Patroon, Rosevine, Oak Grove, Pleasant Hill, Florien, Huxley, Noble,
Fisher, Belmont, Bronson, Pelican, McElroy and Yellowpine.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
These storms 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 3123 9405 3139 9407 3157 9413 3191 9358
3166 9341 3152 9339 3128 9347 3128 9353
3125 9354 3124 9356 3123 9354 3119 9355
3117 9359 3118 9360 3118 9363 3116 9391
3114 9404 3112 9405
TIME...MOT...LOC 1108Z 241DEG 30KT 3154 9404 3142 9396 3128 9393 3110
9399
09Local storm report, Apr 18, 9:29 AM CDT, 50 minutes before
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</html>Local storm report, Apr 18, 9:38 AM CDT, 41 minutes before
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 10:49 PM CDT | Special Weather Statement | SHV | Red River | 41 min |
| Apr 17, 11:19 PM CDT | Severe Thunderstorm Warning | SHV | Bowie, Red River | 41 min |
| Apr 18, 1:58 AM CDT | Lake Wind Advisory | SHV | Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more | 17 hr |
| Apr 18, 2:37 AM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Nacogdoches, Rusk, Smith | 53 min |
| Apr 18, 2:41 AM CDT | Special Weather Statement | SHV | Smith | 64 min |
| Apr 18, 3:25 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Nacogdoches | 65 min |
| Apr 18, 3:30 AM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Harrison, Nacogdoches, Panola, Rusk, Shelby | 60 min |
| Apr 18, 3:35 AM CDT | Special Weather Statement | SHV | Gregg, Harrison, Upshur | 40 min |
| Apr 18, 4:23 AM CDT | Severe Thunderstorm Warning | SHV | Harrison, Nacogdoches, Panola, Shelby | 67 min |
| Apr 18, 4:35 AM CDT | Special Weather Statement | SHV | Angelina, San Augustine, Shelby | 40 min |
| Apr 18, 6:08 AM CDT | Special Weather Statement | SHV | Sabine | 52 min |
| Apr 18, 10:00 AM CDT | River Flood Warning | SHV | Angelina, Houston, Polk, Trinity, Tyler | 49 days |
| Apr 18, 10:03 AM CDT | River Flood Warning | SHV | Franklin, Morris, Red River, Titus | 70 hr |
| Apr 18, 10:04 AM CDT | River Flood Warning | SHV | Gregg, Smith, Upshur, Wood | 55 days |
| Apr 18, 10:06 AM CDT | River Flood Warning | SHV | Wood | 70 hr |
| Apr 18, 5:27 AM CDT | Special Weather Statement | SHV | Webster | 48 min |
| Apr 18, 6:47 AM CDT | Severe Thunderstorm Warning | SHV | De Soto, Natchitoches, Red River, Sabine | 43 min |
| Apr 18, 7:28 AM CDT | Severe Thunderstorm Warning | SHV | Bienville, Jackson, Natchitoches, Red River, Winn | 29 min |
| Apr 18, 8:17 AM CDT | Tornado Warning | SHV | Grant, Natchitoches | 29 min |
| Apr 18, 8:46 AM CDT | Severe Thunderstorm Warning | SHV | Grant, Natchitoches, Winn | 44 min |
| Apr 18, 9:28 AM CDT | Severe Thunderstorm Warning | SHV | Grant, Natchitoches, Winn | 62 min |
| Apr 18, 4:46 PM CDT | Special Weather Statement | SHV | Bossier | 44 min |
| Apr 17, 10:54 PM CDT | Special Weather Statement | SHV | Sevier | 51 min |
| Apr 17, 11:03 PM CDT | Severe Thunderstorm Warning | SHV | Howard, Sevier | 42 min |
| Apr 18, 12:00 AM CDT | Special Weather Statement | SHV | Sevier | 45 min |
| Apr 18, 12:48 AM CDT | Special Weather Statement | SHV | Nevada | 42 min |
| Apr 18, 1:06 AM CDT | Severe Thunderstorm Warning | SHV | Nevada | 24 min |
| Apr 18, 1:12 AM CDT | Special Weather Statement | SHV | Nevada | 33 min |
| Apr 18, 2:04 AM CDT | Special Weather Statement | SHV | Nevada | 41 min |
| Apr 18, 3:46 AM CDT | Special Weather Statement | SHV | Lafayette, Miller | 44 min |
| Apr 18, 4:28 AM CDT | Special Weather Statement | SHV | Columbia, Lafayette, Nevada | 32 min |
| Apr 18, 4:46 AM CDT | Flash Flood Warning | SHV | Hempstead, Nevada | 3 hr |
| Apr 18, 5:19 AM CDT | Special Weather Statement | SHV | Union | 41 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 2019Every severe thunderstorm warning in 2019
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.