Alert archive / Missouri / Mesoscale Discussions in 2009
Mesoscale Discussion 200
The Storm Prediction Center issued this mesoscale discussion at Mar 7, 2009, 6:31 PM CST for 5 counties in Kansas; 18 counties in Missouri. It was in force for 59 min.
The area
The outline as issued.
The facts
- Issued
- Mar 7, 2009, 6:31 PM CST (00:31 UTC)
- Expired
- Mar 7, 2009, 7:30 PM CST
- In force
- 59 min
- Issued by
- the Storm Prediction Center
All 23 counties
Johnson County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Wyandotte County, KS, Bates County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Platte County, MO, Randolph County, MO, Ray County, MO, Saline County, MO
The radar
The Pleasant Hill radar (KEAX), 56 km from the middle of the area, began a volume at 00:32 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
Topeka, KS (KTOP), launched 00:00Z, 0.5 hours before the alert went out and 134 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
- 205 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 1059 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 336 m²/s²
- 0-3 km storm-relative helicity
- 393 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
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 7, 7:33 PM CST | Severe Thunderstorm Watch | SPC | Atchison, Johnson, Leavenworth, Linn, Miami, Wyandotte | 7 hr |
| Mar 7, 8:27 PM CST | Mesoscale Discussion | SPC | Barber, Butler, Chase, Coffey, Douglas, Franklin and 16 more | 2 hr |
| Mar 7, 9:51 PM CST | Severe Thunderstorm Watch | SPC | Allen, Anderson, Butler, Chase, Coffey, Cowley and 13 more | 4 hr |
| Mar 7, 10:26 PM CST | Mesoscale Discussion | SPC | Johnson, Leavenworth, Linn, Miami, Wyandotte | 2 hr |
| Mar 8, 12:43 AM CST | Mesoscale Discussion | SPC | Anderson, Chase, Coffey, Douglas, Franklin, Greenwood and 11 more | 92 min |
| Mar 8, 5:56 AM CDT | Mesoscale Discussion | SPC | Crawford | 64 min |
| Mar 8, 6:32 AM CDT | Tornado Watch | SPC | Bourbon, Cherokee, Crawford | 7 hr |
| Mar 8, 9:26 AM CDT | Mesoscale Discussion | SPC | Bollinger, Cape Girardeau, Carter, Crawford, Dent, Douglas and 20 more | 64 min |
| Mar 8, 10:39 AM CDT | Tornado Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Mississippi, New Madrid and 5 more | 7 hr |
| Mar 8, 11:35 AM CDT | Mesoscale Discussion | SPC | Bollinger, Cape Girardeau, Madison, Perry, Sainte Genevieve, City of Saint Louis | 115 min |
Nearby
Mesoscale Discussions in Missouri, 2009Mesoscale Discussions in Kansas, 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.