Alert archive / Iowa / Flash Flood Warnings in 2003
Flash Flood Warning 4, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jul 7, 2003, 3:09 AM CDT for Mitchell County, Iowa. It was in force for 111 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2003, 3:09 AM CDT (08:09 UTC)
- Expired
- Jul 7, 2003, 5:00 AM CDT
- In force
- 111 min
- Issued by
- NWS La Crosse, WI
- Area
- Counties, with a storm outline in the text
County Mitchell County, IA
The radar
The La Crosse radar (KARX), 137 km from the middle of the area, began a volume at 08:10 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.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 8.2 hours before the alert went out and 176 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
- 2301 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1006 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KARX 070810 FFWARX IAC131-071000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 309 AM CDT MON JUL 7 2003 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * FLASH FLOOD WARNING FOR... MITCHELL COUNTY IN NORTH CENTRAL IOWA * UNTIL 500 AM CDT * AT 309 AM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE WARNED AREA. * SOME LOCATIONS WHICH MAY BE AFFECTED INCLUDE... OSAGE... ST. ANSGAR... 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 4347 9266 4325 9262 4325 9297 4348 9297 $$ RIECK
2 follow-up statements
000 WGUS73 KARX 070846 FFSARX IAC131-071000- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 345 AM CDT MON JUL 7 2003 ...A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MITCHELL COUNTY UNTIL 500 AM CDT... AT 345 AM CDT NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS PRODUCING VERY HEAVY RAIN EAST OF A STACEYVILLE TO OSAGE LINE...MOVING EAST AT 35 MPH. SOME LOCATIONS WHICH MAY BE AFFECTED INCLUDE...MCINTIRE AND NEW HAVEN. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO FORGE FLOODED ROADWAYS BY FOOT OR AUTOMOBILE. IF YOUR VEHICLE STALLS... ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. $$ RIECK
000 WGUS73 KARX 070926 FFSARX IAC131-070940- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 425 AM CDT MON JUL 7 2003 ...THE FLASH FLOOD WARNING FOR MITCHELL COUNTY UNTIL 500 AM CDT HAS BEEN CANCELED... THE THUNDERSTORMS WITH VERY HEAVY RAIN HAVE MOVED EAST...AND THE THREAT OF FLASH FLOODING HAS SUBSIDED. THEREFORE THE FLASH FLOOD WARNING FOR MITCHELL COUNTY HAS BEEN CANCELED. $$ RIECK
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 1:45 AM CDT | Severe Thunderstorm Warning | ARX | Floyd | 60 min |
| Jul 7, 2:18 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 57 min |
| Jul 7, 2:27 AM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 48 min |
| Jul 7, 3:18 AM CDT | Severe Thunderstorm Warning | ARX | Howard, Mitchell | 42 min |
| Jul 7, 3:48 AM CDT | Tornado Warning | ARX | Chickasaw | 42 min |
| Jul 7, 4:06 AM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 39 min |
Nearby
Flash Flood Warnings in Iowa, 2003Every flash flood warning in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.