Alert archive / Iowa / Flash Flood Warnings in 2007
Flash Flood Warning 23, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 16, 2007, 5:53 PM CDT for Buena Vista County, Cherokee County, Iowa. It was in force for 2 hr. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 16, 2007, 5:53 PM CDT (22:53 UTC)
- Expired
- Jun 16, 2007, 8:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties Buena Vista County, IA, Cherokee County, IA
The radar
The Sioux Falls radar (KFSD), 144 km from the middle of the area, began a volume at 22:53 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 16, 6:05 PM CDT | FLASH FLOOD | 10 Ne Cherokee, IA | FLOODED FIELDS |
| Jun 16, 6:50 PM CDT | FLASH FLOOD | Newell, IA | WHITE WATER RAFTING IN NEWELL |
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, 10.9 hours before the alert went out and 177 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
- 197 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1536 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -41 m²/s²
- 0-3 km storm-relative helicity
- -7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KFSD 162254 FFWFSD IAC021-035-170100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 553 PM CDT SAT JUN 16 2007 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * FLASH FLOOD WARNING FOR... BUENA VISTA COUNTY IN NORTHWEST IOWA NORTHERN CHEROKEE COUNTY IN NORTHWEST IOWA * UNTIL 800 PM CDT * AT 545 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM NUMEROUS THUNDERSTORMS OVER THE WARNED AREA. THESE STORMS ARE FAIRLY SLOW MOVING AND ARE REDEVELOPING IN THE SAME AREAS RESULTING IN VERY HEAVY RAINFALL AND INTENSE RAINFALL RATES. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SIOUX RAPIDS...STORM LAKE...LARRABEE...AND LINN GROVE 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. 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. MOVE TO HIGHER GROUND. LAT...LON 4269 9582 4258 9494 4290 9496 4292 9583 $$ MG
2 follow-up statements
000 WGUS73 KFSD 162358 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 657 PM CDT SAT JUN 16 2007 IAC021-035-170100- CHEROKEE IA-BUENA VISTA IA- 657 PM CDT SAT JUN 16 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR BUENA VISTA AND NORTHERN CHEROKEE COUNTIES... AT 650 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A THUNDERSTORM PRODUCING FLASH FLOODING IN AND AROUND NEWELL. OTHER STORMS CAPABLE OF PRODUCING HEAVY RAINFALL WERE LOCATED NEAR AURELIA AND NORTHWEST OF LARRABEE. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. LAT...LON 4269 9582 4258 9494 4290 9496 4292 9583 $$ MG
000 WGUS73 KFSD 170055 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 754 PM CDT SAT JUN 16 2007 IAC021-035-170104- CHEROKEE IA-BUENA VISTA IA- 754 PM CDT SAT JUN 16 2007 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 800 PM CDT FOR BUENA VISTA AND NORTHERN CHEROKEE COUNTIES... SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH THE AREA THROUGH ABOUT 10 PM THIS EVENING...BUT ADDITIONAL RAINFALL RATES AND TOTALS WILL NOT PRODUCE ANY FLASH FLOODING. LAT...LON 4269 9582 4258 9494 4290 9496 4292 9583 $$ MG
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 12:48 PM CDT | Air Stagnation Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 18 hr |
| Jun 16, 5:20 PM CDT | Flash Flood Warning | FSD | Woodbury | 115 min |
| Jun 16, 6:08 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 37 min |
Nearby
Flash Flood Warnings in Iowa, 2007Every flash flood warning in 2007
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.