Alert archive / Nebraska / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 182, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Aug 16, 2020, 6:08 PM CDT for 6 counties in Nebraska. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 16, 2020, 6:08 PM CDT (23:08 UTC)
- Expired
- Aug 16, 2020, 6:45 PM CDT
- In force
- 37 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Butler County, NE, Gage County, NE, Lancaster County, NE, Saline County, NE, Saunders County, NE, Seward County, NE
The radar
The Omaha radar (KOAX), 72 km from the middle of the area, began a volume at 23:12 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 16, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.1 hours before the alert went out and 312 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
- 1671 J/kg
- Mixed-layer CIN
- -219 J/kg
- Mixed-layer LCL
- 1180 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Omaha, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 15, 6:33 PM CDT, 23 hours 35 minutes earlier.
Area forecast discussion, Aug 15, 6:33 PM CDT, 23 hours 35 minutes before
<!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>The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 9:16 AM CDT | Special Weather Statement | OAX | Madison | 29 min |
| Aug 16, 9:40 AM CDT | Severe Thunderstorm Warning | OAX | Antelope, Boone, Madison | 25 min |
| Aug 16, 2:57 PM CDT | Severe Thunderstorm Warning | OAX | Madison, Stanton | 18 min |
| Aug 16, 3:10 PM CDT | Severe Thunderstorm Warning | OAX | Madison, Stanton | 35 min |
| Aug 16, 3:30 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Cuming, Madison, Platte, Stanton | 45 min |
| Aug 16, 3:32 PM CDT | Severe Thunderstorm Warning | OAX | Cuming, Dodge | 28 min |
| Aug 16, 3:38 PM CDT | Severe Thunderstorm Warning | OAX | Colfax, Dodge, Saunders | 37 min |
| Aug 16, 3:48 PM CDT | Severe Thunderstorm Warning | OAX | Antelope, Boone, Madison | 42 min |
| Aug 16, 3:55 PM CDT | Severe Thunderstorm Warning | OAX | Dodge, Saunders | 35 min |
| Aug 16, 4:06 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Dodge, Platte, Stanton | 24 min |
| Aug 16, 4:18 PM CDT | Severe Thunderstorm Warning | OAX | Saunders | 27 min |
| Aug 16, 4:27 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Dodge, Saunders | 48 min |
| Aug 16, 4:41 PM CDT | Severe Thunderstorm Warning | OAX | Lancaster, Saunders | 34 min |
| Aug 16, 5:02 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Cass, Lancaster, Otoe, Saline, Saunders and 1 more | 43 min |
| Aug 16, 5:06 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Colfax, Platte | 25 min |
| Aug 16, 5:18 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Saunders | 27 min |
| Aug 16, 5:34 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Johnson, Lancaster, Otoe | 41 min |
| Aug 16, 5:44 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Lancaster, Saunders, Seward | 46 min |
| Aug 16, 6:21 PM CDT | Severe Thunderstorm Warning | OAX | Stanton, Wayne | 39 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2020Every severe thunderstorm warning in 2020
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.