Alert archive / Iowa / River Flood Warnings in 2010

River Flood Warning 108, NWS Sioux Falls, SD

July 22, 2010Cherokee County, Iowa

NWS Sioux Falls, SD issued this river flood warning at Jul 22, 2010, 2:16 PM CDT for Cherokee County, Iowa. It took effect at Jul 22, 2010, 11:00 PM CDT. It was in force for .

The area

The counties it named.

The facts

Issued: Jul 22, 2010, 2:16 PM CDT (19:16 UTC)
In effect from: Jul 22, 2010, 11:00 PM CDT
Expired: Jul 22, 2010, 9:05 PM CDT
In force
Issued by: NWS Sioux Falls, SD
Flood severity: Minor

County Cherokee County, IA

The radar

The Sioux Falls radar (KFSD), 130 km from the middle of the area, began a volume at 19:16 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 Little Sioux River at Cherokee (CHKI4).

Action stage: 15 ft
Minor stage: 17 ft
Moderate stage: 21 ft
Major stage: 24 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, 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 Jul 22, 11:31 AM CDT, 2 hours 45 minutes earlier.

Area forecast discussion, Jul 22, 11:31 AM CDT, 2 hours 45 minutes before

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Hazardous weather outlook, Jul 22, 11:40 AM CDT, 2 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1140 AM CDT THU JUL 22 2010

SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098-
IAZ001>003-012>014-020>022-031-032-NEZ013-014-231200-
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-
1140 AM CDT THU JUL 22 2010

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS...
THERE IS A CHANCE FOR STORMS TO REDEVELOP VERY LATE THIS
AFTERNOON INTO THE EVENING HOURS FROM SOUTH CENTRAL SOUTH DAKOTA
TOWARD NORTHEAST NEBRASKA...AND THEN A BIT LATER INTO THE NIGHT
THROUGH NORTHWEST IOWA AND SOUTHWEST MINNESOTA. WIDESPREAD SEVERE
WEATHER IS NOT EXPECTED...HOWEVER ISOLATED STORMS MAY PRODUCE
DAMAGING WINDS TO AROUND 50 MPH AND DIME SIZE HAIL.

FLOODING...
HEAVY RAINFALL FROM OVERNIGHT LAST NIGHT HAS PRODUCED RIVER
FLOODING FOR THE VERMILLION...BIG SIOUX...AND LITTLE SIOUX
RIVERS...AND FLOODING CONTINUES ALONG THE JAMES RIVER.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A POTENT SEVERE WEATHER SETUP LOOKS TO EXIST FROM FRIDAY
AFTERNOON INTO FRIDAY EVENING. STORMS SHOULD ERUPT RAPIDLY IN THE
MID TO LATE AFTERNOON HOURS ACROSS CENTRAL SOUTH DAKOTA...AND
EXPAND ALONG A FRONTAL BOUNDARY SITTING NEAR INTERSTATE 90.
THERE WILL BE A THREAT FOR TORNADOES THROUGH SHORTLY AFTER
SUNSET...AND STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 80
MPH AND HAIL TO HEN EGG SIZE. THE SEVERE THREAT WILL DROP OFF
SOMEWHAT AFTER SUNSET AS STORMS SPREAD INTO NORTHWEST IOWA...WITH
A CONTINUED DAMAGING WIND THREAT AND HAIL TO HALF DOLLAR SIZE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 6 PM CDT.

&&

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

In the hours before

Local storm report, Jul 22, 8:29 AM CDT, 5 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
829 AM CDT THU JUL 22 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0825 AM     HEAVY RAIN       6 SSE SIOUX FALLS       43.46N 96.68W
07/22/2010  M3.84 INCH       LINCOLN            SD   NWS EMPLOYEE

&&

TRM

Local storm report, Jul 22, 9:25 AM CDT, 4 hours 51 minutes before

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Local storm report, Jul 22, 10:01 AM CDT, 4 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1001 AM CDT THU JUL 22 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1000 AM     HEAVY RAIN       LAKE PARK               43.45N 95.32W
07/22/2010  E3.75 INCH       DICKINSON          IA   PUBLIC

1000 AM     HEAVY RAIN       5 N MELVIN              43.36N 95.61W
07/22/2010  M6.63 INCH       OSCEOLA            IA   PUBLIC

&&

PS

Local storm report, Jul 22, 10:50 AM CDT, 3 hours 26 minutes before

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Local storm report, Jul 22, 12:34 PM CDT, 1 hour 42 minutes before

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Local storm report, Jul 22, 1:49 PM CDT, 27 minutes before

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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
Jul 21, 7:15 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld	45 min
Jul 21, 7:23 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule	37 min
Jul 21, 7:47 PM CDT	Severe Thunderstorm Warning	FSD	Jerauld, Sanborn	43 min
Jul 21, 7:52 PM CDT	Severe Thunderstorm Warning	FSD	Aurora, Brule, Charles Mix, Douglas	38 min
Jul 21, 7:54 PM CDT	Flash Flood Warning	FSD	Davison, Hanson, Sanborn	6 hr
Jul 21, 9:48 PM CDT	Flash Flood Warning	FSD	Lincoln, Minnehaha	6 hr
Jul 21, 10:53 PM CDT	Flash Flood Warning	FSD	Lincoln, Minnehaha	6 hr
Jul 21, 11:25 PM CDT	Flash Flood Warning	FSD	Clay, Lincoln, Turner, Union, Yankton	7 hr
Jul 22, 2:08 AM CDT	Flash Flood Warning	FSD	Union	4 hr
Jul 22, 2:48 AM CDT	River Flood Warning	FSD	Turner	56 hr
Jul 22, 10:20 AM CDT	River Flood Warning	FSD	Lincoln, Union	6 days
Jul 22, 10:20 AM CDT	River Flood Warning	FSD	Union	6 days
Jul 22, 10:20 AM CDT	River Flood Warning	FSD	Turner	11 hr
Jul 22, 10:20 AM CDT	River Flood Warning	FSD	Turner	5 days
Jul 22, 10:20 AM CDT	River Flood Warning	FSD	Clay	23 days
Jul 22, 10:20 AM CDT	River Flood Warning	FSD	Clay	11 hr
Jul 22, 2:59 PM CDT	Flash Flood Watch	FSD	Beadle, Bon Homme, Brookings, Clay, Davison, Hanson and 12 more	35 hr
Jul 22, 5:08 PM CDT	River Flood Warning	FSD	Bon Homme, Charles Mix	17 hr
Jul 22, 5:08 PM CDT	River Flood Warning	FSD	Bon Homme	29 hr
Jul 22, 5:08 PM CDT	River Flood Warning	FSD	Bon Homme	3 days
Jul 21, 11:57 PM CDT	Flash Flood Warning	FSD	Clay, Dickinson, Lyon, O'Brien, Osceola	5 hr
Jul 22, 12:29 AM CDT	Severe Thunderstorm Warning	FSD	Cherokee, O'Brien, Plymouth, Sioux	46 min
Jul 22, 1:03 AM CDT	Flash Flood Warning	FSD	Buena Vista, Cherokee, Clay, O'Brien	6 hr
Jul 22, 1:39 AM CDT	Severe Thunderstorm Warning	FSD	Buena Vista, Cherokee, Clay, Ida	51 min
Jul 22, 10:39 AM CDT	River Flood Warning	FSD	O'Brien	26 hr
Jul 22, 10:39 AM CDT	River Flood Warning	FSD	Sioux	3 days
Jul 22, 10:39 AM CDT	River Flood Warning	FSD	Clay, Dickinson	10 days
Jul 22, 10:39 AM CDT	River Flood Warning	FSD	Clay	10 days
Jul 22, 10:39 AM CDT	River Flood Warning	FSD	Buena Vista, Clay	13 days
Jul 22, 10:39 AM CDT	River Flood Warning	FSD	Monona, Woodbury	10 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.