Alert archive / South Dakota / River Flood Warnings in 2018
River Flood Warning 29, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this river flood warning at Mar 26, 2018, 10:03 AM CDT for Clay County, South Dakota. It took effect at Mar 27, 2018, 6:08 AM CDT. It was in force for 50 hr.
The area
The counties it named.
The facts
- Issued
- Mar 26, 2018, 10:03 AM CDT (15:03 UTC)
- In effect from
- Mar 27, 2018, 6:08 AM CDT
- Expired
- Mar 29, 2018, 8:20 AM CDT
- In force
- 50 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
County Clay County, SD
The radar
The Sioux Falls radar (KFSD), 77 km from the middle of the area, began a volume at 15:03 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 river
Written for the forecast point Vermillion River near Wakonda (WKAS2).
- Action stage
- 13 ft
- Minor stage
- 14 ft
- Moderate stage
- 15.5 ft
- Major stage
- 17 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06479000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this river flood warning went out at Mar 25, 6:37 PM CDT, 15 hours 26 minutes earlier.
Area forecast discussion, Mar 25, 6:37 PM CDT, 15 hours 26 minutes before
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</html>Hazardous weather outlook, Mar 25, 4:28 PM CDT, 17 hours 35 minutes before
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<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.
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</section>
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</html>The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 8:19 PM CDT | River Flood Warning | FSD | Turner | 38 hr |
Nearby
River Flood Warnings in South Dakota, 2018Every river flood warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.