Alert archive / Oklahoma / Mesoscale Discussions in 2022
Mesoscale Discussion 161
The Storm Prediction Center issued this mesoscale discussion at Feb 21, 2022, 6:41 PM CST for 7 counties in Arkansas; 24 counties in Oklahoma; 14 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 21, 2022, 6:41 PM CST (00:41 UTC)
- Expired
- Feb 21, 2022, 9:15 PM CST
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch likely
- Chance of a watch
- 95%
All 45 counties
Benton County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Madison County, AR, Sebastian County, AR, Washington County, AR, Adair County, OK, Atoka County, OK, Bryan County, OK, Carter County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Garvin County, OK, Haskell County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, Love County, OK, Marshall County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Seminole County, OK, Sequoyah County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Cooke County, TX, Denton County, TX, Grayson County, TX, Jack County, TX, Montague County, TX, Palo Pinto County, TX, Shackelford County, TX, Stephens County, TX, Throckmorton County, TX, Wise County, TX, Young County, TX
The radar
The Norman radar (KTLX), 125 km from the middle of the area, began a volume at 00:42 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.7 hours before the alert went out and 118 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
- 2214 m above ground
- 0-6 km bulk shear
- 75 kt
- 0-1 km storm-relative helicity
- 420 m²/s²
- 0-3 km storm-relative helicity
- 514 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
<!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>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 8:49 PM CST | Tornado Watch | SPC | Baxter, Benton, Boone, Carroll, Cleburne, Conway and 32 more | 7 hr |
| Feb 21, 11:37 PM CST | Mesoscale Discussion | SPC | Conway, Franklin, Garland, Hot Spring, Howard, Johnson and 11 more | 113 min |
| Feb 22, 1:36 AM CST | Mesoscale Discussion | SPC | Cleburne, Conway, Faulkner, Franklin, Garland, Johnson and 13 more | 84 min |
| Feb 22, 3:00 AM CST | Mesoscale Discussion | SPC | Baxter, Clay, Cleburne, Conway, Craighead, Cross and 24 more | 90 min |
| Feb 22, 3:52 AM CST | Tornado Watch | SPC | Clay, Cleburne, Craighead, Crittenden, Cross, Faulkner and 19 more | 6 hr |
| Feb 22, 5:46 AM CST | Mesoscale Discussion | SPC | Craighead, Crittenden, Cross, Lonoke, Mississippi, Monroe and 7 more | 89 min |
| Feb 22, 7:30 AM CST | Mesoscale Discussion | SPC | Crittenden, Cross, Lee, Monroe, St. Francis | 90 min |
| Feb 21, 7:22 PM CST | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Carter, Coal, Cotton, Garvin and 9 more | 7 hr |
| Feb 21, 10:36 PM CST | Mesoscale Discussion | SPC | Bryan, Love, Marshall | 114 min |
| Feb 22, 12:55 AM CST | Mesoscale Discussion | SPC | Callahan, Denton, Eastland, Fannin, Grayson, Palo Pinto and 2 more | 65 min |
Nearby
Mesoscale Discussions in Oklahoma, 2022Mesoscale Discussions in Texas, 2022Mesoscale Discussions in Arkansas, 2022Every mesoscale discussion 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.