Alert archive / Nebraska / Mesoscale Discussions in 2017
Mesoscale Discussion 315
The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2017, 6:45 PM CDT for 11 counties in Kansas; 17 counties in Nebraska. It was in force for 30 min.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2017, 6:45 PM CDT (23:45 UTC)
- Expired
- Mar 23, 2017, 7:15 PM CDT
- In force
- 30 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 28 counties
Decatur County, KS, Gove County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Sheridan County, KS, Thomas County, KS, Trego County, KS, Blaine County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Phelps County, NE, Red Willow County, NE, Thomas County, NE, Valley County, NE
The radar
The Grand Island radar (KUEX), 151 km from the middle of the area, began a volume at 23:46 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
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.8 hours before the alert went out and 90 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
- 654 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 478 m²/s²
- 0-3 km storm-relative helicity
- 480 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Mar 23, 3:32 PM CDT | Mesoscale Discussion | SPC | Finney, Grant, Gray, Hamilton, Haskell, Kearny and 5 more | 58 min |
| Mar 23, 3:46 PM CDT | Severe Thunderstorm Watch | SPC | Finney, Grant, Gray, Hamilton, Haskell, Kearny and 7 more | 6 hr |
| Mar 23, 3:53 PM CDT | Mesoscale Discussion | SPC | Decatur, Norton | 2 hr |
| Mar 23, 6:32 PM CDT | Mesoscale Discussion | SPC | Finney, Gove, Grant, Gray, Haskell, Kearny and 7 more | 58 min |
Nearby
Mesoscale Discussions in Nebraska, 2017Mesoscale Discussions in Kansas, 2017Every mesoscale discussion in 2017
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.