Alert archive / Iowa / Flash Flood Warnings in 2016
Flash Flood Warning 21, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Aug 24, 2016, 12:21 AM CDT for Howard County, Mitchell County, Iowa; Fillmore County, Minnesota. It was in force for 4 hr. 6 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, 12:21 AM CDT (05:21 UTC)
- Expired
- Aug 24, 2016, 4:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Howard County, IA, Mitchell County, IA, Fillmore County, MN
The radar
The La Crosse radar (KARX), 104 km from the middle of the area, began a volume at 05:23 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, 12:30 AM CDT | FLASH FLOOD | 2 N Riceville, IA | WATER OVER ADDISON ROAD. ESTIMATED 3 INCHES OF RAIN SO FAR. |
| Aug 24, 1:00 AM CDT | HEAVY RAIN 3.13 | 4 Ne Riceville, IA | MESONET STATION 3 NE RICEVILLE /E4652/. |
| Aug 24, 1:30 AM CDT | HEAVY RAIN 2.88 | 5 E Greenleafton, MN | MESONET STATION PRESTON 6S /PCCM5/. |
| Aug 24, 1:55 AM CDT | FLASH FLOOD | Stacyville, IA | SEVERAL REPORTS OF ROADS UNDER WATER, WITH SOME SANDBAGGING OPERATIONS NEAR 370TH AND UNDERWOOD NEAR OSAGE. |
| Aug 24, 3:31 AM CDT | HEAVY RAIN 4.25 | 4 Ne Riceville, IA | MESONET STATION 3 NE RICEVILLE /E4652/. |
| Aug 24, 4:05 AM CDT | FLOOD | Stacyville, IA | WATER OVER ROADS IN VARIOUS AREAS OF 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 00:00Z, 5.4 hours before the alert went out and 179 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.
221
WGUS53 KARX 240521
FFWARX
IAC089-131-MNC045-240915-
/O.NEW.KARX.FF.W.0021.160824T0521Z-160824T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1221 AM CDT WED AUG 24 2016
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN HOWARD COUNTY IN NORTHEASTERN IOWA...
MITCHELL COUNTY IN NORTH CENTRAL IOWA...
SOUTHERN FILLMORE COUNTY IN SOUTHEASTERN MINNESOTA...
* UNTIL 415 AM CDT
* AT 1219 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. TWO TO THREE INCHES OF RAIN HAVE
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ST. ANSGAR...HARMONY...RICEVILLE...MABEL...LYLE...LIME SPRINGS...
STACYVILLE...CANTON...CHERRY GROVE...BRISTOL...NEWBURG...AMHERST...YORK...
MITCHELL...CHESTER...MCINTIRE...CARPENTER...OTRANTO PARK...SARATOGA AND
COUNTY ROADS A 23 AND V 58.
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 4350 9302 4350 9245 4358 9245 4368 9173
4350 9173 4350 9208 4339 9208 4330 9302
$$
DL2 follow-up statements
921
WGUS73 KARX 240633
FFSARX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
133 AM CDT WED AUG 24 2016
IAC089-131-MNC045-240915-
/O.CON.KARX.FF.W.0021.000000T0000Z-160824T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HOWARD IA-MITCHELL IA-FILLMORE MN-
133 AM CDT WED AUG 24 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR
NORTHERN HOWARD...MITCHELL AND SOUTHERN FILLMORE COUNTIES...
AT 131 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAIN OVER THE WARNED AREA. 2 TO AS
MUCH AS 4 INCHES OF RAIN HAVE ALREADY FALLEN...WITH AN ADDITIONAL 1
TO 2 INCHES EXPECTED THE NEXT FEW HOURS...ESPECIALLY ACROSS MITCHELL
AND HOWARD COUNTIES. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY IF
IT HAS NOT ALREADY BEGUN.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ST. ANSGAR...HARMONY...RICEVILLE...MABEL...LYLE...LIME SPRINGS...
STACYVILLE...CANTON...CHERRY GROVE...BRISTOL...NEWBURG...AMHERST...
YORK...MITCHELL...CHESTER...MCINTIRE...CARPENTER...OTRANTO PARK...
SARATOGA AND COUNTY ROADS A 23 AND V 58.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 4350 9302 4350 9245 4358 9245 4368 9173
4350 9173 4350 9208 4339 9208 4330 9302
$$
LAWRENCE738 WGUS73 KARX 240752 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 252 AM CDT WED AUG 24 2016 MNC045-240800- /O.CAN.KARX.FF.W.0021.000000T0000Z-160824T0915Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ FILLMORE MN- 252 AM CDT WED AUG 24 2016 ...THE FLASH FLOOD WARNING FOR SOUTHERN FILLMORE COUNTY IS CANCELLED... HEAVY RAINS HAVE ENDED AND FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. LAT...LON 4350 9302 4350 9208 4339 9208 4330 9302 $$ IAC089-131-240915- /O.CON.KARX.FF.W.0021.000000T0000Z-160824T0915Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ HOWARD IA-MITCHELL IA- 252 AM CDT WED AUG 24 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR NORTHERN HOWARD AND MITCHELL COUNTIES... AT 250 AM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED RAINFALL AMOUNTS OF 3 TO AS MUCH AS 5 INCHES ACROSS THE AREA THE PAST 6 HOURS...WITH FLOODING REPORTED IN SOME AREAS BY LAW ENFORCEMENT. RAIN WILL GRADUALLY TAPER OFF THROUGH 4 AM...EASING THE THREAT FOR FLASH FLOODING. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... ST. ANSGAR...RICEVILLE...LYLE...LIME SPRINGS...STACYVILLE... MITCHELL...CHESTER...MCINTIRE...CARPENTER...OTRANTO PARK... SARATOGA...HAYDEN PRAIRIE...BONAIR...COUNTY ROADS A 23 AND V 58... MONA...TOETERVILLE...MEYER...OTRANTO... COUNTY ROADS T 54 AND A 31 AND PIONEER STATE PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 4350 9302 4350 9208 4339 9208 4330 9302 $$ LAWRENCE
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, 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, 3:48 AM CDT | Flash Flood Warning | ARX | Chickasaw, Howard | 3 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, 2016Flash Flood Warnings in Minnesota, 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.