Alert archive / Louisiana / Special Weather Statements in 2021
Special Weather Statement, NWS Shreveport, LA
NWS Shreveport, LA issued this special weather statement at Apr 14, 2021, 10:09 AM CDT for Natchitoches Parish, Louisiana. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 14, 2021, 10:09 AM CDT (15:09 UTC)
- Expired
- Apr 14, 2021, 11:00 AM CDT
- In force
- 51 min
- Issued by
- NWS Shreveport, LA
County Natchitoches Parish, LA
The radar
The Ft Polk radar (KPOE), 42 km from the middle of the area, began a volume at 15:12 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 12:00Z, 3.2 hours before the alert went out and 122 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
- 597 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 327 m²/s²
- 0-3 km storm-relative helicity
- 310 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Apr 14, 9:47 AM CDT, 22 minutes earlier.
Area forecast discussion, Apr 14, 9:47 AM CDT, 22 minutes before
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</html>Hazardous weather outlook, Apr 14, 6:55 AM CDT, 3 hours 14 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 655 AM CDT Wed Apr 14 2021 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-142100- Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette- Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto- Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn- Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp- Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk- Panola-Nacogdoches-Shelby-Angelina-San Augustine- 655 AM CDT Wed Apr 14 2021 This Hazardous Weather Outlook is for portions of south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...Today and Tonight... Scattered to numerous showers and thunderstorms will continue to spread east northeast across much of the region this morning, before diminishing from west to east late this morning through the afternoon. Isolated strong to severe thunderstorms will be possible this morning, with large hail the primary threat. Additional scattered to numerous showers and a few thunderstorms will move back into the region tonight, but no additional hazardous weather is expected. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Showers and a few embedded thunderstorms will move back into the region Thursday night, and persist through much of Friday, before diminishing from west to east Friday night with the passage of a cold front. However, no hazardous weather is expected. Cooler and drier conditions are expected for the upcoming weekend into the start of the new work week. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel...amateur radio operators...and storm spotters may be needed this morning across the region. 15
In the hours before
Special weather statement, Apr 14, 6:31 AM CDT, 3 hours 38 minutes before
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</html>Local storm report, Apr 14, 7:15 AM CDT, 2 hours 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
715 AM CDT WED APR 14 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0128 AM HAIL 7 SSW WINONA 32.40N 95.22W
04/14/2021 E1.00 INCH SMITH TX TRAINED SPOTTER
&&
ASSpecial weather statement, Apr 14, 7:28 AM CDT, 2 hours 41 minutes before
Special Weather Statement National Weather Service Shreveport LA 728 AM CDT Wed Apr 14 2021 ARZ073-LAZ004-006-141330- Union AR-Union LA-Claiborne LA- 728 AM CDT Wed Apr 14 2021 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL UNION COUNTY... NORTHWESTERN UNION AND NORTHERN CLAIBORNE PARISHES UNTIL 830 AM CDT... At 728 AM CDT, Doppler radar was tracking a strong thunderstorm over Homer, moving northeast at 25 mph. Nickel size hail and winds in excess of 30 mph will be possible with this storm. Locations impacted include... Homer, Junction City, Bernice, Cooley, Lisbon, Spearsville, Lillie, Antioch, Taylorville, Summerfield, Spring Lake, Corney Lake, Lockhart, Lake Clairborne and Catesville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. 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. && LAT...LON 3269 9307 3288 9318 3315 9264 3286 9248 TIME...MOT...LOC 1228Z 244DEG 22KT 3282 9302 19
Special weather statement, Apr 14, 7:49 AM CDT, 2 hours 20 minutes before
Special Weather Statement
National Weather Service Shreveport LA
749 AM CDT Wed Apr 14 2021
ARZ072-073-LAZ004-141345-
Union AR-Columbia AR-Claiborne LA-
749 AM CDT Wed Apr 14 2021
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN UNION...SOUTHEASTERN
COLUMBIA COUNTIES IN SOUTHWESTERN ARKANSAS AND NORTHWESTERN CLAIBORNE
PARISHES UNTIL 845 AM CDT...
At 749 AM CDT, Doppler radar was tracking a strong thunderstorm over
Haynesville, or 13 miles north of Homer, moving east at 35 mph.
Penny size hail and winds in excess of 30 mph will be possible with
this storm.
Locations impacted include...
El Dorado, Norphlet, Haynesville, Emerson, Lisbon, Atlanta, Wesson,
Hew Hope, Newell, Marysville, Cairo, Noxobe, Three Creeks, Kenova and
Spotville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
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.
&&
LAT...LON 3288 9318 3309 9327 3337 9270 3337 9268
3336 9268 3336 9266 3337 9265 3337 9263
3336 9263 3336 9261 3320 9254
TIME...MOT...LOC 1249Z 250DEG 32KT 3299 9312
19Special weather statement, Apr 14, 8:29 AM CDT, 1 hour 40 minutes before
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</html>Special weather statement, Apr 14, 10:09 AM CDT, 0 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 13, 7:16 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Panola | 44 min |
| Apr 13, 7:30 PM CDT | Special Weather Statement | SHV | Shelby | 30 min |
| Apr 13, 8:00 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Panola | 38 min |
| Apr 13, 9:28 PM CDT | Special Weather Statement | SHV | Cherokee | 62 min |
| Apr 13, 10:24 PM CDT | Special Weather Statement | SHV | Rusk | 36 min |
| Apr 14, 12:55 AM CDT | Special Weather Statement | SHV | Smith | 35 min |
| Apr 14, 1:13 AM CDT | Special Weather Statement | SHV | Smith | 32 min |
| Apr 14, 1:27 AM CDT | Severe Thunderstorm Warning | SHV | Smith, Upshur, Wood | 63 min |
| Apr 14, 1:59 AM CDT | Special Weather Statement | SHV | Upshur | 31 min |
| Apr 14, 2:09 AM CDT | Special Weather Statement | SHV | Gregg | 36 min |
| Apr 14, 2:33 AM CDT | Special Weather Statement | SHV | Upshur | 42 min |
| Apr 14, 2:41 AM CDT | Special Weather Statement | SHV | Gregg | 49 min |
| Apr 14, 3:30 AM CDT | Special Weather Statement | SHV | Marion | 45 min |
| Apr 14, 4:29 AM CDT | Special Weather Statement | SHV | Franklin, Titus | 46 min |
| Apr 14, 4:54 AM CDT | Severe Thunderstorm Warning | SHV | Bowie, Morris, Red River, Titus | 50 min |
| Apr 14, 4:13 AM CDT | Special Weather Statement | SHV | Bossier | 62 min |
| Apr 14, 5:13 AM CDT | Special Weather Statement | SHV | Bienville | 62 min |
| Apr 14, 5:25 AM CDT | Special Weather Statement | SHV | Bossier | 65 min |
| Apr 14, 5:38 AM CDT | Severe Thunderstorm Warning | SHV | Grant, LaSalle, Winn | 41 min |
| Apr 14, 5:41 AM CDT | Special Weather Statement | SHV | Bossier | 49 min |
| Apr 14, 6:31 AM CDT | Special Weather Statement | SHV | Claiborne, Webster | 59 min |
| Apr 14, 7:28 AM CDT | Special Weather Statement | SHV | Claiborne | 62 min |
| Apr 14, 8:29 AM CDT | Special Weather Statement | SHV | Union | 61 min |
| Apr 14, 3:32 AM CDT | Special Weather Statement | SHV | Howard | 43 min |
| Apr 14, 4:00 AM CDT | Special Weather Statement | SHV | Nevada | 60 min |
| Apr 14, 5:43 AM CDT | Special Weather Statement | SHV | Little River | 47 min |
| Apr 14, 6:04 AM CDT | Severe Thunderstorm Warning | SHV | Howard, Little River, Sevier | 42 min |
| Apr 14, 7:49 AM CDT | Special Weather Statement | SHV | Union | 56 min |
| Apr 14, 2:38 AM CDT | Special Weather Statement | SHV | McCurtain | 37 min |
| Apr 14, 3:08 AM CDT | Special Weather Statement | SHV | McCurtain | 22 min |
Nearby
Special Weather Statements in Louisiana, 2021Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.