Alert archive / South Dakota / Flood Watches in 2020

Flood Watch 1, NWS Sioux Falls, SD

March 27, 202018 counties in South Dakota; 4 counties in Iowa; 7 counties in Minnesota

NWS Sioux Falls, SD issued this flood watch at Mar 27, 2020, 3:44 AM CDT for 18 counties in South Dakota; 4 counties in Iowa; 7 counties in Minnesota. It took effect at Mar 28, 2020, 1:00 AM CDT. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued: Mar 27, 2020, 3:44 AM CDT (08:44 UTC)
In effect from: Mar 28, 2020, 1:00 AM CDT
Expired: Mar 28, 2020, 10:00 PM CDT
In force: 21 hr
Issued by: NWS Sioux Falls, SD
Flood severity: None

All 29 counties

Lyon County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Cottonwood County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Bon Homme County, SD, Brookings County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 15 km from the middle of the area, began a volume at 08:45 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.

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Mar 26, 10:49 PM CDT, 4 hours 55 minutes earlier.

Area forecast discussion, Mar 26, 10:49 PM CDT, 4 hours 55 minutes before

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Hazardous weather outlook, Mar 26, 3:53 PM CDT, 11 hours 51 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Minnehaha, Moody	21 days
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Lincoln, Minnehaha	21 days
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Union	8 days
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Union	9 days
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Turner	21 days
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Clay	21 days
Mar 27, 3:41 PM CDT	Wind Advisory	FSD	Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more	36 hr
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Clay, Dickinson	21 days
Mar 27, 11:15 AM CDT	River Flood Warning	FSD	Clay	21 days

Nearby

Flood Watches in South Dakota, 2020 Flood Watches in Minnesota, 2020 Flood Watches in Iowa, 2020 Every flood watch 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; radar from the NEXRAD Level II archive.