Increased releases from upstream reservoirs to route heavy spring runoff downstream contributed to minor flooding between Fort Randall and Gavins Point Dam.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FSD wrote it up.
Increased releases from upstream reservoirs to route heavy spring runoff downstream contributed to minor flooding between Fort Randall and Gavins Point Dam.
The local office's own words before the first event, 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 the first event at Jul 8, 11:44 AM CST, 1 hour 16 minutes earlier.
<!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>Hazardous Weather Outlook National Weather Service Sioux Falls SD 335 AM CDT Sun Jul 8 2018 IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ065>071-090845- Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Dixon-Dakota-Hutchinson-Turner- Lincoln SD-Bon Homme-Yankton-Clay SD-Union- 335 AM CDT Sun Jul 8 2018 This Hazardous Weather Outlook is for portions of northwest Iowa, west central Iowa, northeast Nebraska, and southeast South Dakota. .DAY ONE...Today and Tonight Flooding continues on several rivers. For specific river details, visit https://water.weather.gov. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight. SDZ039-040-054>056-060>062-090845- Kingsbury-Brookings-Miner-Lake-Moody-Hanson-McCook-Minnehaha- 335 AM CDT Sun Jul 8 2018 This Hazardous Weather Outlook is for portions of east central South Dakota and southeast South Dakota. .DAY ONE...Today and Tonight Isolated strong to marginally severe thunderstorms may occur tonight, with the better chances north of Interstate 90. If a storm becomes severe, quarter size hail and 60 mph wind gusts will be the main threats. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight. SDZ038-050-052-053-057>059-063-064-090845- Beadle-Gregory-Jerauld-Sanborn-Brule-Aurora-Davison-Charles Mix- Douglas- 335 AM CDT Sun Jul 8 2018 This Hazardous Weather Outlook is for portions of central South Dakota, east central South Dakota, south central South Dakota, and southeast South Dakota. .DAY ONE...Today and Tonight A heat advisory is in effect Sunday afternoon for heat index values of 100 to 105 degrees. Isolated strong to marginally severe thunderstorms may occur tonight, with the better chances north of Interstate 90. If a storm becomes severe, quarter size hail and 60 mph wind gusts will be the main threats. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight. MNZ071-072-080-081-089-090-097-098-090845- Lincoln MN-Lyon MN-Murray-Cottonwood-Nobles-Jackson-Pipestone- Rock- 335 AM CDT Sun Jul 8 2018 This Hazardous Weather Outlook is for portions of southwest Minnesota. .DAY ONE...Today and Tonight Isolated severe thunderstorms will be possible tonight. The main threats will be hail to the size of quarters and 60 mph wind gusts. Flooding continues on several rivers. For specific river details, visit https://water.weather.gov. .DAYS TWO THROUGH SEVEN...Monday through Saturday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed tonight.
The national radar mosaic for the moment the first event began.
4 flood. Local standard time, as filed.
Bottom Road near Springfield was inundated and minor flooding of mainly agricultural areas occurred as the Missouri River at Springfield (gage site SPGS2) crested 1.2 feet above flood stage on July 14. The river remained in minor flood through the end of the month.
Bottom Road near Springfield was inundated and minor flooding of mainly agricultural areas occurred as the Missouri River at Niobrara (gage site MRNN1) crested 1.0 feet above flood stage on July 23. The river remained in minor flood through the end of the month.
Minor flooding of mainly agricultural areas occurred as the Missouri River near Verdel (gage site MRVN1) crested 0.2 feet above flood stage on July 14. The river dropped briefly below flood stage mid-month, but returned above flood stage on July 20 and crested again 0.3 feet above flood stage on July 23. The river remained in minor flood through the end of the month.
Minor flooding of mainly agricultural areas occurred as the Missouri River near Verdel (gage site MRVN1) crested 0.2 feet above flood stage on July 14. The river dropped briefly below flood stage mid-month, but returned above flood stage on July 20 and crested again 0.3 feet above flood stage on July 23. The river remained in minor flood through the end of the month.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2018Every state in 2018This day in weather historyWarnings in South Dakota, July 2018
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 772468, 772466, 772463, 772464.