Alert archive / Iowa / Flash Flood Warnings in 2014
Flash Flood Warning 7, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 1, 2014, 3:26 PM CDT for 6 counties in Iowa. It was in force for 5 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 1, 2014, 3:26 PM CDT (20:26 UTC)
- Expired
- Jun 1, 2014, 8:30 PM CDT
- In force
- 5 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- None
Counties Buena Vista County, IA, Cherokee County, IA, Clay County, IA, O'Brien County, IA, Plymouth County, IA, Sioux County, IA
The radar
The Sioux Falls radar (KFSD), 98 km from the middle of the area, began a volume at 20:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 1, 6:00 PM CDT | FLASH FLOOD | Cherokee, IA | AREA CREEKS AND STREAMS OUT OF THEIR BANK OVER THE ROAD. |
| Jun 1, 6:30 PM CDT | HEAVY RAIN 4.08 | Cherokee, IA | PRECIPITATION TOTAL SINCE 1 PM THIS AFTERNOON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 8.4 hours before the alert went out and 163 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
- 833 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 989 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
782
WGUS53 KFSD 012026
FFWFSD
IAC021-035-041-141-149-167-020130-
/O.NEW.KFSD.FF.W.0007.140601T2026Z-140602T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
326 PM CDT SUN JUN 1 2014
THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN BUENA VISTA COUNTY IN NORTHWEST IOWA
NORTHERN CHEROKEE COUNTY IN NORTHWEST IOWA
PLYMOUTH COUNTY IN NORTHWEST IOWA
SOUTHEASTERN SIOUX COUNTY IN NORTHWEST IOWA
SOUTHERN CLAY COUNTY IN NORTHWEST IOWA
SOUTHERN O'BRIEN COUNTY IN NORTHWEST IOWA
* UNTIL 830 PM CDT
* AT 318 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. AN
ADDITIONAL TWO TO FOUR INCHES OF RAINFALL CAN BE EXPECTED WITH
ADDITIONAL THUNDERSTORMS THROUGH THE AFTERNOON HOURS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...LE
MARS...AKRON...ALBERT CITY...AURELIA...CHEROKEE...CLEGHORN...
CRAIG...GREENVILLE...LARRABEE...LINN GROVE...MARATHON...MARCUS...
MERRILL...PAULLINA...PETERSON...REMSEN...SIOUX RAPIDS...STRUBLE...
SUTHERLAND...TRUESDALE AND WEBB.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
ADDITIONAL RAINFALL AMOUNTS OF TWO TO FOUR INCHES ARE POSSIBLE IN
THE WARNED AREA. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
TWO TO THREE INCHES OF RAIN HAS ALREADY FALLEN ACROSS THE WARNED
AREA.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.
&&
LAT...LON 4272 9493 4261 9653 4263 9651 4271 9663
4273 9663 4275 9664 4278 9662 4279 9659
4283 9658 4284 9655 4289 9654 4290 9652
4310 9491
$$
BT2 follow-up statements
569
WGUS73 KFSD 012319
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
619 PM CDT SUN JUN 1 2014
IAC021-035-041-141-149-167-020130-
/O.CON.KFSD.FF.W.0007.000000T0000Z-140602T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SIOUX IA-PLYMOUTH IA-O'BRIEN IA-BUENA VISTA IA-CHEROKEE IA-CLAY IA-
619 PM CDT SUN JUN 1 2014
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN CLAY...
CHEROKEE...NORTHERN BUENA VISTA...SOUTHERN O'BRIEN...PLYMOUTH AND
SOUTHEASTERN SIOUX COUNTIES UNTIL 830 PM CDT...
AT 612 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER PORTIONS OF THE WARNED
AREA. DOPPLER RADAR ESTIMATED THREE TO FIVE INCHES OF RAINFALL
ACROSS THE AREA. WHILE RAINFALL IS DECREASING ACROSS THE
WARNED...LOCAL CREEKS AND STREAMS CONTINUE TO REMAIN OUT OF THEIR
BANKS.
SLOW MOVING THUNDERSTORMS ARE PRODUCING VERY HEAVY RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...LE MARS...AKRON...ALBERT CITY...AURELIA...CHEROKEE...
CLEGHORN...CRAIG...GREENVILLE...LARRABEE...LINN GROVE...MARATHON...
MARCUS...MERRILL...PAULLINA...PETERSON...REMSEN...SIOUX RAPIDS...
STRUBLE...SUTHERLAND...TRUESDALE AND WEBB.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 4272 9493 4261 9653 4263 9651 4271 9663
4273 9663 4275 9664 4278 9662 4279 9659
4283 9658 4284 9655 4289 9654 4290 9652
4310 9491
$$
BT836
WGUS73 KFSD 020118
FFSFSD
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
818 PM CDT SUN JUN 1 2014
IAC021-035-041-141-149-167-020133-
/O.CAN.KFSD.FF.W.0007.000000T0000Z-140602T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SIOUX IA-PLYMOUTH IA-O'BRIEN IA-BUENA VISTA IA-CHEROKEE IA-CLAY IA-
818 PM CDT SUN JUN 1 2014
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN CLAY...
CHEROKEE...NORTHERN BUENA VISTA...SOUTHERN O'BRIEN...PLYMOUTH AND
SOUTHEASTERN SIOUX COUNTIES IS CANCELLED...
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 4272 9493 4261 9653 4263 9651 4271 9663
4273 9663 4275 9664 4278 9662 4279 9659
4283 9658 4284 9655 4289 9654 4290 9652
4310 9491
$$
BTThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 1:54 AM CDT | Flash Flood Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 19 hr |
| Jun 1, 8:38 AM CDT | River Flood Warning | FSD | Sioux | 5 days |
| Jun 1, 8:38 AM CDT | River Flood Warning | FSD | Plymouth | 5 days |
| Jun 1, 11:33 AM CDT | Flash Flood Warning | FSD | Clay, Dickinson, O'Brien | 3 hr |
| Jun 1, 1:46 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Sioux | 44 min |
| Jun 1, 2:47 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 43 min |
| Jun 1, 2:56 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 49 min |
| Jun 1, 2:58 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 47 min |
| Jun 1, 3:17 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 43 min |
| Jun 1, 3:29 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 31 min |
| Jun 1, 3:29 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 46 min |
| Jun 1, 3:49 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux, Woodbury | 41 min |
| Jun 1, 4:18 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 42 min |
| Jun 1, 4:29 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Woodbury | 61 min |
Nearby
Flash Flood Warnings in Iowa, 2014Every flash flood warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.