Alert archive / North Dakota / Mesoscale Discussions in 2009
Mesoscale Discussion 244
The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2009, 5:56 PM MDT for 4 states. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2009, 5:56 PM MDT (23:56 UTC)
- Expired
- Mar 23, 2009, 9:00 PM MDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 50 counties
Carter County, MT, Adams County, ND, Benson County, ND, Billings County, ND, Bowman County, ND, Burleigh County, ND, Dunn County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Pierce County, ND, Ramsey County, ND, Sheridan County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Stutsman County, ND, Towner County, ND, Ward County, ND, Wells County, ND, Butte County, SD, Campbell County, SD, Corson County, SD, Custer County, SD, Dewey County, SD, Haakon County, SD, Harding County, SD, Jackson County, SD, Jones County, SD, Lawrence County, SD, Meade County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Walworth County, SD, Ziebach County, SD, Crook County, WY
The radar
The Bismarck radar (KBIS), 110 km from the middle of the area, began a volume at 23:57 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.9 hours before the alert went out and 113 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
- 488 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 240 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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 |
|---|---|---|---|---|
| Mar 23, 3:59 AM MDT | Mesoscale Discussion | SPC | Carter, Powder River | 6 hr |
| Mar 23, 11:06 AM MDT | Mesoscale Discussion | SPC | Carter, Fallon, Powder River | 5 hr |
| Mar 22, 10:28 PM MDT | Mesoscale Discussion | SPC | Brookings, Deuel, Grant | 3 hr |
| Mar 23, 9:13 AM MDT | Mesoscale Discussion | SPC | Gregory | 2 hr |
| Mar 23, 11:16 AM MDT | Tornado Watch | SPC | Aurora, Beadle, Bon Homme, Brule, Buffalo, Charles Mix and 17 more | 4 hr |
| Mar 23, 2:11 PM MDT | Mesoscale Discussion | SPC | Bon Homme, Charles Mix, Clay, Gregory, Hutchinson, Lincoln and 3 more | 94 min |
| Mar 23, 2:50 PM MDT | Tornado Watch | SPC | Aurora, Beadle, Bon Homme, Brookings, Brule, Buffalo and 27 more | 6 hr |
| Mar 23, 5:04 PM MDT | Mesoscale Discussion | SPC | Beadle, Hand, Hanson, Hughes, Hyde, Jerauld and 10 more | 116 min |
Nearby
Mesoscale Discussions in North Dakota, 2009Mesoscale Discussions in South Dakota, 2009Mesoscale Discussions in Montana, 2009Every mesoscale discussion in 2009
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.