Alert archive / Iowa / River Flood Warnings in 2010

River Flood Warning 36, NWS Sioux Falls, SD

March 14, 2010Lyon County, Sioux County, Iowa

NWS Sioux Falls, SD issued this river flood warning at Mar 14, 2010, 10:26 PM CDT for Lyon County, Sioux County, Iowa. It took effect at Mar 15, 2010, 12:55 AM CDT. It was in force for 59 hr.

The area

The counties it named.

The facts

Issued: Mar 14, 2010, 10:26 PM CDT (03:26 UTC)
In effect from: Mar 15, 2010, 12:55 AM CDT
Expired: Mar 17, 2010, 11:30 AM CDT
In force: 59 hr
Issued by: NWS Sioux Falls, SD
Flood severity: Minor

Counties Lyon County, IA, Sioux County, IA

The radar

The Sioux Falls radar (KFSD), 59 km from the middle of the area, began a volume at 03:27 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 Rock River at Rock Valley (RKVI4). The gauge peaked at 16.77 ft at Mar 16, 2010, 1:00 PM CDT.

Action stage: 14 ft
Minor stage: 16 ft
Moderate stage: 17 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06483500, 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 14, 9:55 PM CDT, 31 minutes earlier.

Area forecast discussion, Mar 14, 9:55 PM CDT, 31 minutes before

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Hazardous weather outlook, Mar 14, 4:09 AM CDT, 18 hours 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
409 AM CDT SUN MAR 14 2010

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-151200-
AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA-
CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE-
DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON-
IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN-
LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN-
OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN-
SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON-
409 AM CDT SUN MAR 14 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA...
SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

FLOODING...

FLOODING CAN BE EXPECTED ALONG THE JAMES RIVER...VERMILLION
RIVER...BIG SIOUX AND LITTLE SIOUX RIVER UNTIL FURTHER NOTICE.

FOG...

WIDESPREAD DENSE FOG WILL PERSIST ACROSS SOUTHWEST
MINNESOTA AND PORTIONS OF NORTHWEST IOWA THROUGH MID MORNING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT
WWW.WEATHER.GOV/SIOUXFALLS. THIS INCLUDES THE GRAPHICAL HAZARDOUS
WEATHER OUTLOOK.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 14, 10:11 PM CDT	Areal Flood Warning	FSD	Lake	12 hr
Mar 15, 11:06 AM CDT	River Flood Warning	FSD	Cherokee, Plymouth	48 hr

Nearby

River Flood Warnings in Iowa, 2010 Every river flood warning in 2010

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.