Alert archive / Iowa / Flash Flood Warnings in 2014
Flash Flood Warning 15, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 14, 2014, 9:44 PM CDT for 6 counties in Iowa. It was in force for 5 hr. 1 report 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 14, 2014, 9:44 PM CDT (02:44 UTC)
- Expired
- Jun 15, 2014, 2:30 AM CDT
- In force
- 5 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cherokee County, IA, Ida County, IA, O'Brien County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA
The radar
The Sioux Falls radar (KFSD), 126 km from the middle of the area, began a volume at 02:47 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 14, 11:25 PM CDT | FLASH FLOOD | Correctionville, IA | 2 TO 3 FEET OF WATER OVER HIGHWAY 31 AND DRIFTWOOD ST. |
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, 2.7 hours before the alert went out and 147 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
- 2298 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1112 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 134 m²/s²
- 0-3 km storm-relative helicity
- 352 m²/s²
- Significant tornado parameter
- 3.3
- Supercell composite
- 23.5
The text
As transmitted, in the capitals the NWS used until 2016.
121 WGUS53 KFSD 150244 FFWFSD IAC035-093-141-149-167-193-150730- /O.NEW.KFSD.FF.W.0015.140615T0244Z-140615T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 944 PM CDT SAT JUN 14 2014 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * FLASH FLOOD WARNING FOR... CHEROKEE COUNTY IN NORTHWEST IOWA EASTERN PLYMOUTH COUNTY IN NORTHWEST IOWA NORTHWESTERN IDA COUNTY IN WEST CENTRAL IOWA SOUTHEASTERN SIOUX COUNTY IN NORTHWEST IOWA SOUTHERN O'BRIEN COUNTY IN NORTHWEST IOWA WOODBURY COUNTY IN WEST CENTRAL IOWA * UNTIL 230 AM CDT * AT 943 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. THUNDERSTORMS WHICH PRODUCED RAINFALL OF 1 TO 2 INCHES PER HOUR TO THE WEST IN NORTHEAST NEBRASKA AND AROUND SIOUX CITY WILL BE MOVING ACROSS THE AREA...WITH ADDITIONAL THUNDERSTORMS EXPECTED TO DEVELOP FOR SEVERAL HOURS INTO THE EARLY MORNING HOURS. SOME RAINFALL RATES WITH INITIAL STORMS COULD REACH BRIEFLY 3 TO 4 INCHES PER HOUR...WHICH WILL QUICKLY OVERWHELM POORLY DRAINED URBANIZED AREAS. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...LE MARS...ANTHON...AURELIA...CHEROKEE...CLEGHORN...CORRECTIONVILLE... CUSHING...GRANVILLE...HINTON...KINGSLEY...LARRABEE...LAWTON... MARCUS...MERRILL...MOVILLE...PAULLINA...PIERSON...PRIMGHAR... QUIMBY...REMSEN...SALIX...SUTHERLAND AND WASHTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. && LAT...LON 4222 9628 4283 9636 4318 9540 4258 9539 $$ CHAPMAN
2 follow-up statements
697 WGUS73 KFSD 150419 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1119 PM CDT SAT JUN 14 2014 IAC035-093-141-149-167-193-150730- /O.CON.KFSD.FF.W.0015.000000T0000Z-140615T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SIOUX IA-PLYMOUTH IA-O'BRIEN IA-IDA IA-CHEROKEE IA-WOODBURY IA- 1119 PM CDT SAT JUN 14 2014 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WOODBURY...CHEROKEE... NORTHWESTERN IDA...SOUTHERN O'BRIEN...EASTERN PLYMOUTH AND SOUTHEASTERN SIOUX COUNTIES UNTIL 230 AM CDT... AT 1110 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. DOPPLER RADAR ESTIMATED 2 TO 4 INCHES OF RAIN HAS ALREADY FALLEN ACROSS THE AREA. ADDITIONAL THUNDERSTORMS WITH HEAVY RAINFALL WILL BE MOVING INTO THE WARNED AREA THROUGH MIDNIGHT. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE... LE MARS...AURELIA...CHEROKEE...CLEGHORN...CORRECTIONVILLE... CUSHING...GRANVILLE...HINTON...KINGSLEY...LARRABEE...LAWTON... MARCUS...MERRILL...MOVILLE...PAULLINA...PIERSON...PRIMGHAR... QUIMBY...REMSEN...SALIX...SUTHERLAND AND WASHTA. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. && LAT...LON 4222 9628 4283 9636 4318 9540 4258 9539 $$ JH
849 WGUS73 KFSD 150738 FFSFSD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 238 AM CDT SUN JUN 15 2014 IAC035-093-141-149-167-193-150800- /O.EXP.KFSD.FF.W.0015.000000T0000Z-140615T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SIOUX IA-PLYMOUTH IA-O'BRIEN IA-IDA IA-CHEROKEE IA-WOODBURY IA- 238 AM CDT SUN JUN 15 2014 ...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR WOODBURY... CHEROKEE...NORTHWESTERN IDA...SOUTHERN O'BRIEN...EASTERN PLYMOUTH AND SOUTHEASTERN SIOUX COUNTIES HAS BEEN ALLOWED TO EXPIRE...AND HAS BEEN REPLACED BY AN AREAL FLOOD WARNING... RAINFALL CONTINUES AS OF 230 AM...AND WITH EXPECTATIONS OF AN ADDITIONAL INCH OR SO RAINFALL...FLOODING OF RURAL AND URBAN AREAS WILL BE MADE EVEN WORSE. SEVERAL AREA ROADWAYS HAVE BEEN CLOSED DUE TO FLOODING...AND FLOODING DANGERS ARE EVEN GREATER AT NIGHT. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY. LAT...LON 4222 9628 4283 9636 4318 9540 4258 9539 $$ CHAPMAN
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 7:10 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 50 min |
| Jun 14, 7:50 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Sioux | 40 min |
| Jun 14, 8:20 PM CDT | Flash Flood Warning | FSD | Plymouth, Woodbury | 5 hr |
| Jun 14, 8:55 PM CDT | Flash Flood Warning | FSD | Lyon | 3 hr |
| Jun 14, 9:35 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 55 min |
| Jun 14, 10:17 PM CDT | Flash Flood Warning | FSD | Lyon | 4 hr |
| Jun 14, 11:00 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 45 min |
| Jun 15, 12:23 AM CDT | River Flood Warning | FSD | Lyon | 5 days |
| Jun 15, 12:35 AM CDT | Flash Flood Warning | FSD | Buena Vista, Clay, Ida, Woodbury | 115 min |
| Jun 15, 1:31 AM CDT | Areal Flood Warning | FSD | Buena Vista, Cherokee, Clay, Ida, O'Brien, Plymouth and 1 more | 12 hr |
| Jun 15, 2:05 AM CDT | Areal Flood Warning | FSD | Lyon | 12 hr |
| Jun 15, 5:12 AM CDT | River Flood Warning | FSD | Lyon, Sioux | 6 days |
| Jun 15, 5:12 AM CDT | River Flood Warning | FSD | Clay | 13 days |
| Jun 15, 5:12 AM CDT | River Flood Warning | FSD | Monona, Woodbury | 55 hr |
| Jun 15, 8:18 AM CDT | Areal Flood Warning | FSD | Ida | 12 hr |
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.