Alert archive / Iowa / Flash Flood Warnings in 2007
Flash Flood Warning 29, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Aug 4, 2007, 5:04 AM CDT for Buena Vista County, Cherokee County, Iowa. It was in force for 4 hr. 1 report 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
- Aug 4, 2007, 5:04 AM CDT (10:04 UTC)
- Expired
- Aug 4, 2007, 9:00 AM CDT
- In force
- 4 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 10:06 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 |
|---|---|---|---|
| Aug 4, 7:01 AM CDT | FLASH FLOOD | Storm Lake, IA | TOTAL RAINFALL OF 3.35 INCHES OF RAIN IN 4 HOURS NEAR HWY 110 AND 7. 1.84 INCHES OF RAIN IN 1 HOUR FROM 6 TO 7 AM. |
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 00:00Z, 10.1 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
- 3 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1822 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 60 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 041005 FFWFSD IAC021-035-149-041400- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 504 AM CDT SAT AUG 4 2007 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * FLASH FLOOD WARNING FOR... BUENA VISTA COUNTY IN NORTHWEST IOWA CHEROKEE COUNTY IN NORTHWEST IOWA PLYMOUTH COUNTY IN NORTHWEST IOWA * UNTIL 900 AM CDT * AT 501 AM CDT...THE PUBLIC REPORTED FLASH FLOODING NEAR HIGHWAY 3 AND HIGHWAY 75. THUNDERSTORM 6 MILES SOUTH OF CLEGHORN...OR ABOUT 21 MILES EAST OF LE MARS...MOVING EAST AT 25 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO QUIMBY...CHEROKEE...LARRABEE...AURELIA...ALTA...LINN GROVE...STORM LAKE...TRUESDALE...LAKESIDE...SIOUX RAPIDS...NEWELL...MARATHON AND ALBERT CITY ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE WARNED AREA...MAINLY ACROSS CHEROKEE AND BUENA VISTA COUNTIES 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. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LAT...LON 4290 9639 4257 9639 4258 9494 4291 9495 $$ 08
2 follow-up statements
000 WGUS73 KFSD 041250 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 744 AM CDT SAT AUG 4 2007 IAC021-035-149-041400- CHEROKEE IA-PLYMOUTH IA-BUENA VISTA IA- 744 AM CDT SAT AUG 4 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM CDT FOR BUENA VISTA...PLYMOUTH AND CHEROKEE COUNTIES... AT 744 AM CDT...THE SHOWERS AND THUNDERSTORMS PRODUCING THE HEAVY RAIN WERE MOVING OFF TO THE EAST AT ABOUT 30 MPH. THE RAIN HAS ENDED IN PLYMOUTH COUNTY. SPOTTY SHOWERS REMAIN IN CHEROKEE COUNTY WITH SOME LIGHT TO MODERATE RAIN STILL PREVALENT IN BUENA VISTA COUNTY. MOST OF THE ACCUMULATING RAIN IS OVER IN THIS AREA...WITH AMOUNTS NEAR A QUARTER OF AN INCH OR LESS EXPECTED THROUGH 830 AM. SOME URBAN FLOODING HAS BEEN REPORTED IN STORM LAKE IOWA EARLY THIS MORNING BY A TRAINED SPOTTER AT AROUND 7 AM. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. MOVE TO HIGHER GROUND. LAT...LON 4290 9639 4257 9639 4258 9494 4291 9495 $$ MJF
000 WGUS73 KFSD 041357 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 854 AM CDT SAT AUG 4 2007 IAC021-035-149-041404- CHEROKEE IA-PLYMOUTH IA-BUENA VISTA IA- 854 AM CDT SAT AUG 4 2007 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 AM CDT FOR BUENA VISTA...PLYMOUTH AND CHEROKEE COUNTIES... SPOTTY SHOWERS REMAIN OVER CHEROKEE AND BUENA VISTA COUNTIES...BUT ADDITIONAL RAINFALL THIS MORNING WILL BE MINIMAL. BE ALERT FOR REMAINING WATER OVER ROADS IN LOW LYING AREAS AS IT WILL TAKE AWHILE FOR THE EXCESS WATER TO DRAIN OFF. THE NATIONAL WEATHER SERVICE WILL BE ALERT FOR REDEVELOPING RAIN THIS AFTERNOON ALONG A FRONTAL BOUNDARY IN THIS SAME AREA. SO STAY TUNED FOR ANY FURTURE STATEMENTS OR WARNINGS. LAT...LON 4290 9639 4257 9639 4258 9494 4291 9495 $$ MJF
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 5:04 AM CDT | Flash Flood Warning | FSD | Buena Vista, Cherokee, Dickinson, Ida, Osceola, Plymouth and 1 more | 19 days |
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.