Alert archive / Minnesota / Flash Flood Warnings in 2011
Flash Flood Warning 31, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jul 27, 2011, 5:02 AM CDT for 4 counties in Minnesota; Osceola County, Iowa. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 27, 2011, 5:02 AM CDT (10:02 UTC)
- Expired
- Jul 27, 2011, 8:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- None
Counties Osceola County, IA, Cottonwood County, MN, Jackson County, MN, Murray County, MN, Nobles County, MN
The radar
The Sioux Falls radar (KFSD), 117 km from the middle of the area, began a volume at 10:02 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 10.0 hours before the alert went out and 193 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1713 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
898
WGUS53 KFSD 271002
FFWFSD
IAC143-MNC033-063-101-105-271300-
/O.NEW.KFSD.FF.W.0031.110727T1002Z-110727T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
502 AM CDT WED JUL 27 2011
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN NOBLES COUNTY IN SOUTHWEST MINNESOTA
JACKSON COUNTY IN SOUTHWEST MINNESOTA
NORTHERN OSCEOLA COUNTY IN NORTHWEST IOWA
SOUTHEASTERN MURRAY COUNTY IN SOUTHWEST MINNESOTA
SOUTHERN COTTONWOOD COUNTY IN SOUTHWEST MINNESOTA
* UNTIL 800 AM CDT
* AT 457 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
RAINFALL RATES IN EXCESS OF 2 INCHES PER HOUR HAVE OCCURRED WITH
THESE THUNDERSTORMS. UPWARDS OF 4 INCHES OF RAIN IS POSSIBLE IN
ONLY A FEW HOURS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
JACKSON...WINDOM...WORTHINGTON...BERGEN...BINGHAM LAKE...
BREWSTER...FULDA...HERON LAKE...LAKEFIELD...MOUNTAIN LAKE...ROUND
LAKE...RUSHMORE AND WILMONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.
FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE.
&&
LAT...LON 4350 9489 4350 9539 4349 9539 4347 9548
4340 9586 4393 9581 4405 9486 4355 9486
$$
LIEBL2 follow-up statements
255
WGUS73 KFSD 271123
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
623 AM CDT WED JUL 27 2011
IAC143-MNC033-063-101-105-271300-
/O.CON.KFSD.FF.W.0031.000000T0000Z-110727T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSCEOLA IA-COTTONWOOD MN-JACKSON MN-MURRAY MN-NOBLES MN-
623 AM CDT WED JUL 27 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR EASTERN NOBLES...
SOUTHEASTERN MURRAY...JACKSON...SOUTHERN COTTONWOOD AND NORTHERN
OSCEOLA COUNTIES UNTIL 800 AM CDT...
AT 620 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...JACKSON...WINDOM...WORTHINGTON...BERGEN...BINGHAM LAKE...
BREWSTER...FULDA...HERON LAKE...LAKEFIELD...MOUNTAIN LAKE...ROUND
LAKE...RUSHMORE AND WILMONT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLOODING OF SMALL CREEKS
AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS
AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING
AREAS ARE ALSO SUBJECT TO FLOODING.
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.
&&
LAT...LON 4350 9489 4350 9539 4349 9539 4347 9548
4340 9586 4393 9581 4405 9486 4355 9486
$$
LIEBL163
WGUS73 KFSD 271321
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
821 AM CDT WED JUL 27 2011
IAC143-MNC033-063-101-105-271300-
/O.EXP.KFSD.FF.W.0031.000000T0000Z-110727T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
OSCEOLA IA-COTTONWOOD MN-JACKSON MN-MURRAY MN-NOBLES MN-
821 AM CDT WED JUL 27 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR EASTERN
NOBLES...SOUTHEASTERN MURRAY...JACKSON...SOUTHERN COTTONWOOD AND
NORTHERN OSCEOLA COUNTIES WAS ALLOWED TO EXPIRE AT 800 AM CDT...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
&&
LAT...LON 4350 9489 4350 9539 4349 9539 4347 9548
4340 9586 4393 9581 4405 9486 4355 9486
$$
JHThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 4:17 AM CDT | Flash Flood Warning | FSD | Nobles, Rock | 2 hr |
| Jul 27, 2:49 PM CDT | River Flood Warning | FSD | Rock | 19 hr |
| Jul 27, 9:39 AM CDT | River Flood Warning | FSD | Sioux | 3 days |
| Jul 27, 9:39 AM CDT | River Flood Warning | FSD | Plymouth | 4 days |
Nearby
Flash Flood Warnings in Minnesota, 2011Flash Flood Warnings in Iowa, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.