Alert archive / Minnesota / Mesoscale Discussions in 2004
Mesoscale Discussion 1926
The Storm Prediction Center issued this mesoscale discussion at Aug 8, 2004, 5:03 PM CDT for 37 counties in Minnesota; 12 counties in Wisconsin. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2004, 5:03 PM CDT (22:03 UTC)
- Expired
- Aug 8, 2004, 7:00 PM CDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
All 49 counties
Anoka County, MN, Benton County, MN, Blue Earth County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Houston County, MN, Isanti County, MN, Kanabec County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Pine County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Todd County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Winona County, MN, Wright County, MN, Barron County, WI, Buffalo County, WI, Burnett County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI, Trempealeau County, WI, Washburn County, WI
The radar
The Minneapolis radar (KMPX), 52 km from the middle of the area, began a volume at 22:05 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
Minneapolis, MN (KMPX), launched 12:00Z, 10.1 hours before the alert went out and 55 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
- 362 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 1170 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 123 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 |
|---|---|---|---|---|
| Aug 8, 12:17 PM CDT | Mesoscale Discussion | SPC | Anoka, Blue Earth, Carver, Dakota, Dodge, Faribault and 19 more | 58 min |
| Aug 8, 12:37 PM CDT | Mesoscale Discussion | SPC | Becker, Clay, Douglas, Grant, Kittson, Mahnomen and 8 more | 83 min |
| Aug 8, 12:55 PM CDT | Severe Thunderstorm Watch | SPC | Becker, Clay, Kittson, Mahnomen, Marshall, Norman and 5 more | 5 hr |
| Aug 8, 4:02 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Cass, Clay, Clearwater, Hubbard and 11 more | 88 min |
| Aug 8, 4:35 PM CDT | Severe Thunderstorm Watch | SPC | Becker, Beltrami, Cass, Clay, Clearwater, Crow Wing and 17 more | 5 hr |
| Aug 8, 5:20 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Benton, Brown, Carver, Chisago, Dakota and 21 more | 7 hr |
Nearby
Mesoscale Discussions in Minnesota, 2004Mesoscale Discussions in Wisconsin, 2004Every mesoscale discussion in 2004
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.