Alert archive / Nebraska / Flash Flood Warnings in 1996
Flash Flood Warning 36, NWS Omaha, NE
NWS Omaha, NE issued this flash flood warning at Aug 19, 1996, 4:19 PM CDT for Jefferson County, Nebraska. It was in force for 5 hr. 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 19, 1996, 4:19 PM CDT (21:19 UTC)
- Expired
- Aug 19, 1996, 9:15 PM CDT
- In force
- 5 hr
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Jefferson County, NE
The radar
The Grand Island radar (KUEX), 111 km from the middle of the area, began a volume at 21:21 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
Omaha, NE (KOAX), launched 12:00Z, 9.3 hours before the alert went out and 143 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
- 1345 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 826 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 19, 11:31 AM CDT, 4 hours 48 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 19, 3:27 PM CDT | Severe Thunderstorm Warning | OAX | Gage, Jefferson | 63 min |
| Aug 19, 5:14 PM CDT | Severe Thunderstorm Warning | OAX | Johnson, Nemaha, Pawnee | 61 min |
| Aug 19, 5:40 PM CDT | Severe Thunderstorm Warning | OAX | Pawnee, Richardson | 65 min |
| Aug 19, 5:41 PM CDT | Flash Flood Warning | OAX | Johnson, Nemaha, Pawnee | 4 hr |
| Aug 19, 5:41 PM CDT | Flash Flood Warning | OAX | Richardson | 4 hr |
| Aug 19, 6:45 PM CDT | Flash Flood Warning | OAX | Richardson | 45 min |
| Aug 19, 6:45 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 45 min |
| Aug 19, 3:32 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 43 min |
| Aug 19, 4:09 PM CDT | Severe Thunderstorm Warning | OAX | Page | 51 min |
Nearby
Flash Flood Warnings in Nebraska, 1996Every flash flood warning in 1996
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.