Alert archive / Texas / Mesoscale Discussions in 2005
Mesoscale Discussion 686
The Storm Prediction Center issued this mesoscale discussion at Apr 25, 2005, 6:13 PM CDT for 4 counties in Arkansas; Choctaw County, McCurtain County, Pushmataha County, Oklahoma; 45 counties in Texas. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Apr 25, 2005, 6:13 PM CDT (23:13 UTC)
- Expired
- Apr 25, 2005, 7:15 PM CDT
- In force
- 62 min
- Issued by
- the Storm Prediction Center
All 52 counties
Howard County, AR, Little River County, AR, Pike County, AR, Sevier County, AR, Choctaw County, OK, McCurtain County, OK, Pushmataha County, OK, Anderson County, TX, Bell County, TX, Bosque County, TX, Bowie County, TX, Burnet County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Collin County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Harrison County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Houston County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Lampasas County, TX, Leon County, TX, Limestone County, TX, Marion County, TX, McLennan County, TX, Milam County, TX, Morris County, TX, Navarro County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rockwall County, TX, Rusk County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Williamson County, TX, Wood County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 145 km from the middle of the area, began a volume at 23:17 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 11.2 hours before the alert went out and 145 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
- 1543 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 296 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
<!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 |
|---|---|---|---|---|
| Apr 25, 1:11 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Atoka, Blaine, Caddo, Canadian, Carter and 32 more | 64 min |
| Apr 25, 2:00 PM CDT | Severe Thunderstorm Watch | SPC | Atoka, Canadian, Carter, Cleveland, Coal, Cotton and 32 more | 6 hr |
| Apr 25, 5:41 PM CDT | Mesoscale Discussion | SPC | Atoka, Canadian, Carter, Cleveland, Coal, Cotton and 32 more | 94 min |
| Apr 25, 1:34 PM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Burnet, Clay, Collin, Comanche and 29 more | 86 min |
| Apr 25, 2:20 PM CDT | Tornado Watch | SPC | Bell, Bosque, Burnet, Collin, Comanche, Cooke and 32 more | 7 hr |
| Apr 25, 4:16 PM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Burnet, Collin, Cooke, Coryell and 24 more | 59 min |
Nearby
Mesoscale Discussions in Texas, 2005Mesoscale Discussions in Arkansas, 2005Mesoscale Discussions in Oklahoma, 2005Every mesoscale discussion in 2005
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.