Alert archive / Iowa / Flash Flood Warnings in 2016
Flash Flood Warning 30, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Sep 9, 2016, 12:28 PM CDT for 5 counties in Iowa. It was in force for 3 hr. 3 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
- Sep 9, 2016, 12:28 PM CDT (17:28 UTC)
- Expired
- Sep 9, 2016, 3:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Chickasaw County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Winneshiek County, IA
The radar
The La Crosse radar (KARX), 119 km from the middle of the area, began a volume at 17:29 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 |
|---|---|---|---|
| Sep 9, 1:57 PM CDT | FLASH FLOOD | Ridgeway, IA | BASEMENTS FLOODED. ROAD CLOSURES IN SOUTHWESTERN PART OF COUNTY. TIME ESTIMATED. |
| Sep 9, 2:59 PM CDT | FLOOD | 3 E Charles City, IA | FLOODING OVER 2 COUNTY ROADS |
| Sep 9, 3:08 PM CDT | FLASH FLOOD | 2 Ene Lawler, IA | WATER OVER HIGHWAY 24. MANY OTHER ROADS REPORTED UNDER WATER IN COUNTY. . |
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 12:00Z, 5.5 hours before the alert went out and 215 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1205 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
084
WGUS53 KARX 091728
FFWARX
IAC037-065-067-089-191-092030-
/O.NEW.KARX.FF.W.0030.160909T1728Z-160909T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1228 PM CDT FRI SEP 9 2016
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWESTERN FAYETTE COUNTY IN NORTHEASTERN IOWA...
CHICKASAW COUNTY IN NORTHEASTERN IOWA...
SOUTHERN HOWARD COUNTY IN NORTHEASTERN IOWA...
WINNESHIEK COUNTY IN NORTHEASTERN IOWA...
FLOYD COUNTY IN NORTH CENTRAL IOWA...
* UNTIL 330 PM CDT
* AT 1222 PM CDT...DOPPLER RADAR AND MEASURED RAIN GAGES OBSERVED 3
TO 4.5 INCHES OF RAIN ACROSS THE WARNED AREA. SANDBAGGING WAS
OCCURRING IN PROTIVIN. WATER IS REPORTED TO BE HIGH ACROSS
CHICKASAW COUNTY AND ACROSS MANY ROADS NEAR UNION AND LAWLER.
* EXPECT CREEKS AND STREAMS TO FLOOD OUT OF THEIR BANKS THIS
AFTERNOON...INCLUDING THE LITTLE TURKEY...CRANE...AND BOHEMIAN
CREEKS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
DECORAH...CHARLES CITY...CRESCO...NEW HAMPTON...NASHUA...CALMAR...
FREDERICKSBURG...OSSIAN...ELMA...LAWLER...SPILLVILLE...
PROTIVIN...WAUCOMA...JERICO...CHICKASAW AND ALTA VISTA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4321 9261 4321 9255 4324 9255 4346 9201
4339 9171 4306 9173 4288 9208 4291 9208
4291 9280 4307 9295
$$
RIECK1 follow-up statement
833
WGUS73 KARX 091814
FFSARX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
114 PM CDT FRI SEP 9 2016
IAC037-065-067-089-191-092030-
/O.CON.KARX.FF.W.0030.000000T0000Z-160909T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
FAYETTE IA-CHICKASAW IA-HOWARD IA-WINNESHIEK IA-FLOYD IA-
114 PM CDT FRI SEP 9 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 PM CDT FOR
NORTHWESTERN FAYETTE...CHICKASAW...SOUTHERN HOWARD...WINNESHIEK AND
FLOYD COUNTIES...
AT 105 PM CDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING
ONGOING...WITH WATER OVER MANY ROADS ACROSS THE WARNED AREA. THE
WORST AREAS WOULD BE FROM NORTHEAST OF CHARLES CITY TO...IN AND
NORTH OF NEW HAMPTON...TO PROTIVIN...SPILLVILLE...RIDGEWAY AND JUST
SOUTHWEST OF DECORAH.
* RAIN WILL BE ENDING SHORTLY FROM WEST TO EAST OVER THE WARNED
AREA. THIS WILL HELP LIMIT ADDITIONAL FLOODING. HOWEVER...AS THE
WATER ROUTES INTO CREEKS AND STREAMS...FLOODING WILL CONTINUE.
THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES OF THE:
TURKEY RIVER...
CEDAR RIVER...
LITTLE WAPSIPINICON RIVER...
WAPSIPINICON RIVER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4321 9261 4321 9255 4324 9255 4346 9201
4339 9171 4306 9173 4288 9208 4291 9208
4291 9280 4307 9295
$$
BAUMGARDTThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 11:08 AM CDT | Areal Flood Advisory | ARX | Allamakee, Chickasaw, Fayette, Floyd, Howard, Mitchell and 1 more | 3 hr |
| Sep 9, 11:41 AM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 7 hr |
| Sep 9, 1:02 PM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 3 hr |
| Sep 9, 2:35 PM CDT | River Flood Warning | ARX | Allamakee | 67 hr |
| Sep 9, 2:39 PM CDT | River Flood Warning | ARX | Clayton | 4 days |
| Sep 9, 2:39 PM CDT | River Flood Warning | ARX | Clayton | 64 hr |
| Sep 9, 3:16 PM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd, Howard, Winneshiek | 3 hr |
| Sep 9, 6:17 PM CDT | Areal Flood Warning | ARX | Chickasaw, Fayette, Howard, Winneshiek | 50 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.