Alert archive / Iowa / Flash Flood Warnings in 2004
Flash Flood Warning 24, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jun 16, 2004, 4:12 PM CDT for Howard County, Mitchell County, Iowa. It was in force for 4 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
- Jun 16, 2004, 4:12 PM CDT (21:12 UTC)
- Expired
- Jun 16, 2004, 8:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS La Crosse, WI
- Area
- Counties, with a storm outline in the text
Counties Howard County, IA, Mitchell County, IA
The radar
The La Crosse radar (KARX), 132 km from the middle of the area, began a volume at 21:16 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 16, 4:30 PM CDT | FLASH FLOOD | 5 S Le Roy, IA | A 300 HUNDRED FOOT STRETCH OF COUNTY ROAD V10 SOUTH OF LE ROY WAS UNDER WATER. DEPTH WAS 12 INCHES AT SOME POINTS. THIS IS BETWEEN HIGHWAY 9 AND LE ROY IN NORTHWEST HOWARD COUNTY. |
| Jun 16, 4:30 PM CDT | FLASH FLOOD | 5 S Le Roy, IA | A 300 HUNDRED FOOT STRETCH OF COUNTY ROAD V10 SOUTH OF LE ROY WAS UNDER WATER. DEPTH WAS 12 INCHES AT SOME POINTS. THIS IS BETWEEN HIGHWAY 9 AND LE ROY IN NORTHWEST HOWARD 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, 9.2 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
- 421 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 530 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -70 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 KARX 162113 FFWARX IAC089-131-170100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 412 PM CDT WED JUN 16 2004 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * FLASH FLOOD WARNING FOR... MITCHELL COUNTY IN NORTH CENTRAL IOWA HOWARD COUNTY IN NORTHEAST IOWA * UNTIL 800 PM CDT * AT 412 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER STATE ROAD 9 AND COUNTY S 70...OR ABOUT 10 MILES WEST OF OSAGE. ESTIMATES FROM RADAR INDICATED THAT NEARLY 2 INCHES OF RAIN HAS FALLEN DURING THE PAST HOUR OVER THE WARNED AREA. HEAVY RAINFALL WILL CONTINUE OVER THE WARNED AREA FOR THE NEXT SEVERAL HOURS. THE STORMS PRODUCING THE VERY HEAVY RAINFALL WERE MOVING NORTHEAST AT 15 MPH. * SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...CRESCO...ELMA...LIME SPRINGS...OSAGE...RICEVILLE...ST. ANSGAR AND STACYVILLE. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO FORGE FLOODED ROADWAYS BY FOOT OR AUTOMOBILE. IF YOUR VEHICLE STALLS... ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. LAT...LON 4349 9312 4323 9310 4323 9211 4350 9211 $$ KRC
3 follow-up statements
000 WGUS73 KARX 162140 FFSARX IAC089-131-170100- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 435 PM CDT WED JUN 16 2004 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR HOWARD AND MITCHELL COUNTIES... AT 430 PM CDT...HOWARD COUNTY DISPATCH REPORTED THAT A 300 FOOT STRETCH OF HIGHWAY V 10 SOUTH OF LE ROY WAS UNDER A FOOT OF WATER. AT 435 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN EXTENDING FROM 11 MILES NORTHEAST OF MASON CITY TO 13 MILES WEST OF CRESCO. ESTIMATES FROM RADAR INDICATED THAT NEARLY 2 INCHES OF RAIN HAS FALLEN DURING THE PAST HOUR OVER THE WARNED AREA. THE STORMS PRODUCING THE VERY HEAVY RAINFALL WERE MOVING NORTHEAST AT 15 MPH. SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...CRESCO...ELMA...LIME SPRINGS...OSAGE...RICEVILLE...ST. ANSGAR AND STACYVILLE. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO FORGE FLOODED ROADWAYS BY FOOT OR AUTOMOBILE. IF YOUR VEHICLE STALLS... ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. LAT...LON 4349 9312 4323 9310 4323 9211 4350 9211 $$ KRC
000 WGUS73 KARX 162334 FFSARX IAC089-131-170100- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 631 PM CDT WED JUN 16 2004 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MITCHELL AND HOWARD COUNTIES UNTIL 800 PM CDT... AT 631 PM CDT NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE AREA. HOWEVER...THE BACK EDGE OF THE STORM SYSTEM RESPONSIBLE FOR THE HEAVY RAIN WAS JUST WEST OF THE AREA...AND THE RAIN SHOULD END BY 730 PM. DO NOT DRIVE INTO FLOODED AREAS. $$
000 WGUS73 KARX 170049 FFSARX IAC089-131-170100- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 748 PM CDT WED JUN 16 2004 ...THE FLASH FLOOD WARNING FOR HOWARD AND MITCHELL COUNTIES HAS BEEN CANCELLED... WATER LEVELS HAVE RECEDED IN THE WARNED AREA. THEREFORE...THE FLASH FLOOD WARNING FOR HOWARD AND MITCHELL COUNTIES HAS BEEN CANCELLED. LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT EARLIER FLOODING OF ROADS HAS ENDED. PLEASE REPORT ANY FURTHER FLOODING TO YOUR LOCAL LAW ENFORCEMENT OFFICE AND TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. LAT...LON 4349 9312 4323 9310 4323 9211 4350 9211 $$ DAVIS
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 5:38 AM CDT | Flash Flood Warning | ARX | Fayette | 4 hr |
| Jun 16, 2:05 PM CDT | Tornado Warning | ARX | Howard | 55 min |
| Jun 16, 2:49 PM CDT | Tornado Warning | ARX | Mitchell | 56 min |
| Jun 16, 3:07 PM CDT | Tornado Warning | ARX | Floyd | 53 min |
| Jun 16, 5:16 PM CDT | Flash Flood Warning | ARX | Fayette | 4 hr |
Nearby
Flash Flood Warnings in Iowa, 2004Every flash flood warning in 2004
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.