Alert archive / Iowa / Flash Flood Warnings in 2016
Flash Flood Warning 24, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Aug 24, 2016, 3:48 AM CDT for Chickasaw County, Howard County, Iowa. It was in force for 3 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
- Aug 24, 2016, 3:48 AM CDT (08:48 UTC)
- Expired
- Aug 24, 2016, 7:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Chickasaw County, IA, Howard County, IA
The radar
The La Crosse radar (KARX), 109 km from the middle of the area, began a volume at 08:48 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 24, 5:00 AM CDT | FLASH FLOOD | 2 Wnw Little Turkey, IA | *** 1 FATAL *** VEHICLE WAS SWEPT OFF ROAD BY THE FLOODING LITTLE TURKEY RIVER. 911 CALL AT 440 AM. . |
| Aug 24, 5:48 AM CDT | FLOOD | Protivin, IA | NUMEROUS ROADS UNDER WATER AND DAMAGED. SEVERAL OTHER LOCATIONS IN COUNTY WITH HIGH WATER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 8.8 hours before the alert went out and 207 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
- 172 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 1288 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
612 WGUS53 KARX 240848 FFWARX IAC037-089-241215- /O.NEW.KARX.FF.W.0024.160824T0848Z-160824T1215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 348 AM CDT WED AUG 24 2016 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN CHICKASAW COUNTY IN NORTHEASTERN IOWA... SOUTHERN HOWARD COUNTY IN NORTHEASTERN IOWA... * UNTIL 715 AM CDT * AT 347 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. FLASH FLOODING IS OCCURRING. LAW ENFORCEMENT REPORTED A FLOODED HOME IN PROTOVIN. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... CRESCO...NEW HAMPTON...ELMA...LAWLER...PROTIVIN...JERICO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 4335 9249 4339 9208 4308 9208 4307 9232 $$ WETENKAMP
1 follow-up statement
236 WGUS73 KARX 241033 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 533 AM CDT WED AUG 24 2016 IAC037-089-241215- /O.CON.KARX.FF.W.0024.000000T0000Z-160824T1215Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CHICKASAW IA-HOWARD IA- 533 AM CDT WED AUG 24 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR NORTHEASTERN CHICKASAW AND SOUTHERN HOWARD COUNTIES... AT 530 AM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING. FLOODING WAS IMPACTING HOMES IN THE PROTOVIN AREA. WATER RESCUES HAVE BEEN REPORTED. THE HEAVY RAIN MAY HAVE WASHED OUT ROADS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... CRESCO...NEW HAMPTON...ELMA...LAWLER...PROTIVIN...JERICO... MAPLE LEAF...DAVIS CORNERS...SCHLEY...COUNTY ROADS V 58 AND A 46... LOURDES...VERNON SPRINGS...JACKSONVILLE...SAUDE... HIGHWAY 63 AND COUNTY B 22...LITTLE TURKEY... HIGHWAY 63 AND COUNTY B 33... VERNON SPRINGS COUNTY PARK AND COUNTY ROADS V 56 AND B 33. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME UNSTABLE AND UNSAFE. && LAT...LON 4335 9249 4339 9208 4308 9208 4307 9232 $$ WETENKAMP
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 8:30 PM CDT | Special Weather Statement | ARX | Chickasaw, Winneshiek | 60 min |
| Aug 23, 9:10 PM CDT | Areal Flood Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 3 hr |
| Aug 23, 9:57 PM CDT | Areal Flood Warning | ARX | Chickasaw, Floyd, Howard | 9 hr |
| Aug 23, 10:11 PM CDT | Flash Flood Warning | ARX | Winneshiek | 4 hr |
| Aug 24, 12:21 AM CDT | Flash Flood Warning | ARX | Howard, Mitchell | 4 hr |
| Aug 24, 1:02 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 6 hr |
| Aug 24, 2:05 AM CDT | River Flood Warning | ARX | Winneshiek | 25 hr |
| Aug 24, 2:05 AM CDT | River Flood Warning | ARX | Allamakee | 3 days |
| Aug 24, 3:36 AM CDT | Areal Flood Warning | ARX | Fayette | 32 hr |
| Aug 24, 4:11 AM CDT | River Flood Warning | ARX | Winneshiek | 17 hr |
| Aug 24, 4:17 AM CDT | Areal Flood Warning | ARX | Howard, Mitchell | 3 hr |
| Aug 24, 6:46 AM CDT | Flash Flood Warning | ARX | Allamakee, Chickasaw, Howard, Winneshiek | 6 hr |
| Aug 24, 8:00 AM CDT | River Flood Warning | ARX | Floyd | 48 hr |
| Aug 24, 8:59 AM CDT | River Flood Warning | ARX | Clayton | 4 days |
| Aug 24, 8:59 AM CDT | River Flood Warning | ARX | Clayton | 3 days |
| Aug 24, 10:38 AM CDT | Special Weather Statement | ARX | Chickasaw, Winneshiek | 82 min |
| Aug 24, 11:03 AM CDT | Areal Flood Warning | ARX | Allamakee, Chickasaw, Howard, Winneshiek | 24 hr |
Nearby
Flash Flood Warnings in Iowa, 2016Every flash flood warning in 2016
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.