Alert archive / Texas / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 151, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 21, 2022, 10:38 PM CDT for 10 counties in Texas. It was in force for 67 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
- May 21, 2022, 10:38 PM CDT (03:38 UTC)
- Expired
- May 21, 2022, 11:45 PM CDT
- In force
- 67 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cherokee County, TX, Gregg County, TX, Harrison County, TX, Nacogdoches County, TX, Panola County, TX, Rusk County, TX, Shelby County, TX, Smith County, TX, Upshur County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 91 km from the middle of the area, began a volume at 03:41 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 21, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.6 hours before the alert went out and 280 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
- 3849 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 815 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- -13 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 May 21, 9:48 PM CDT, 50 minutes earlier.
Area forecast discussion, May 21, 9:48 PM CDT, 50 minutes before
Area Forecast Discussion National Weather Service Shreveport LA 948 PM CDT Sat May 21 2022 .UPDATE... Afternoon forecast package looks to be on track, not necessitating any significant updates this evening. The frontal driven convection extending from deep east Texas into southwest Arkansas continues to develop as it propagates eastward, with some isolated pre frontal convection reaching severe criteria as well. Meanwhile, an outflow dominant QLCS is pushing eastward into deep east Texas, where it will interact with a very unstable airmass characterized by CAPE values exceeding 4000 J/kg and steep lapse rates. Severe Thunderstorm Watch 258 remains in effect until 1:00 AM CDT. /26/ && .PREV DISCUSSION... /issued 616 PM CDT Sat May 21 2022/ AVIATION... For the 22/00Z TAFs, conditions will deteriorate through the evening hours as thunderstorms enter area airspace from the north and west. Some of these storms may become severe before 22/04Z, with impacts concentrated at first from KTYR to KTXK. Other terminals should anticipate impacts of strong to potentially severe storms overnight and into the morning as the line gradually pushes east. Thus, carrying widespread SHRA and TSRA, as well as MVFR/IFR ceilings, possibly as low as LIFR. Visibilities will likewise deteriorate in locally heavy rainfall. Will amend with TEMPO groups as needed as shower/storm activity progresses. /26/ && .PRELIMINARY POINT TEMPS/POPS... SHV 68 78 63 82 / 90 60 20 30 MLU 69 80 64 81 / 70 90 30 30 DEQ 59 70 58 77 / 80 30 10 30 TXK 64 70 60 79 / 90 40 10 20 ELD 63 72 58 78 / 80 70 20 20 TYR 61 74 63 81 / 90 40 10 40 GGG 63 75 63 82 / 90 50 20 30 LFK 68 83 66 84 / 80 50 20 40 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...None. LA...None. OK...None. TX...None. && 26/15
Hazardous weather outlook, May 21, 6:12 AM CDT, 16 hours 26 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 612 AM CDT Sat May 21 2022 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-221115- 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- 612 AM CDT Sat May 21 2022 This Hazardous Weather Outlook is for 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 thunderstorms are expected by late afternoon into the evening and overnight hours as a strong cold front shifts into the region. Some storms may be strong to severe with damaging winds and hail possible, along with a non-zero tornado threat that cannot be completely ruled out. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Additional thunderstorms will be possible through the remainder of the weekend into much of next week as the cold front will stall near the coast and lift back northward Monday as a warm front. Meanwhile, multiple upper level disturbances will transition across the region through mid week and bring locally heavy rainfall with some storms. These periods of heavy rainfall may present some possible flooding concerns through the middle of next week with total event rainfall amounts generally expected to range between 3-6 inches along with isolated totals possible. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators, and storm spotters may be needed today and tonight. 19
In the hours before
Special weather statement, May 21, 9:18 PM CDT, 1 hour 20 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, May 21, 9:24 PM CDT, 1 hour 14 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, May 21, 9:43 PM CDT, 55 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, May 21, 10:13 PM CDT, 25 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, May 21, 10:17 PM CDT, 21 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Local storm report, May 21, 10:28 PM CDT, 10 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 9:18 PM CDT | Special Weather Statement | SHV | Gregg | 27 min |
| May 21, 9:27 PM CDT | Severe Thunderstorm Warning | SHV | Gregg, Rusk | 63 min |
| May 21, 9:43 PM CDT | Severe Thunderstorm Warning | SHV | Cherokee, Nacogdoches, Rusk, Smith | 62 min |
| May 21, 10:23 PM CDT | Severe Thunderstorm Warning | SHV | Bowie, Cass | 52 min |
| May 21, 10:55 PM CDT | Severe Thunderstorm Warning | SHV | Cass, Marion | 65 min |
| May 21, 11:15 PM CDT | Special Weather Statement | SHV | Angelina, San Augustine | 60 min |
| May 21, 11:31 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Marion | 44 min |
| May 21, 11:40 PM CDT | Special Weather Statement | SHV | Sabine, San Augustine, Shelby | 50 min |
| May 21, 11:59 PM CDT | Severe Thunderstorm Warning | SHV | Cass, Harrison, Marion | 61 min |
| May 22, 12:25 AM CDT | Special Weather Statement | SHV | Sabine, San Augustine | 65 min |
| May 22, 12:59 AM CDT | Special Weather Statement | SHV | Bossier, Claiborne, Webster | 61 min |
| May 22, 1:18 AM CDT | Special Weather Statement | SHV | Bienville, Natchitoches | 57 min |
| May 22, 3:20 AM CDT | Special Weather Statement | SHV | Caldwell | 40 min |
| May 21, 7:58 PM CDT | Severe Thunderstorm Warning | SHV | Howard, Sevier | 62 min |
| May 21, 8:58 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Little River, Sevier | 62 min |
| May 21, 9:59 PM CDT | Severe Thunderstorm Warning | SHV | Hempstead, Howard, Little River, Nevada | 61 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2022Every severe thunderstorm warning in 2022
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.