Alert archive / Iowa / Flash Flood Warnings in 1998
Flash Flood Warning 22, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jun 28, 1998, 1:56 AM CDT for Allamakee County, Iowa. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 28, 1998, 1:56 AM CDT (06:56 UTC)
- Expired
- Jun 28, 1998, 10:00 AM CDT
- In force
- 8 hr
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County Allamakee County, IA
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 6.9 hours before the alert went out and 199 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
- 4171 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1286 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLSE 280657 RRA FFWLSE IAC005-009-037-067-191-WIC054-055-281500- BULLETIN - IMMEDIATE BROADCAST REQUESTED FLOOD WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 156 AM CDT SUN JUN 28 1998 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * FLOOD WARNING FOR... HOWARD COUNTY IN NORTHEAST IOWA WINNESHIEK COUNTY IN NORTHEAST IOWA ALLAMAKEE COUNTY IN NORTHEAST IOWA FLOYD COUNTY IN NORTHEAST IOWA CHICKASAW COUNTY IN NORTHEAST IOWA RICHLAND COUNTY IN SOUTHWEST WISCONSIN CRAWFORD COUNTY IN SOUTHWEST WISCONSIN * UNTIL 1000 AM CDT * AT 155 AM CDT...NUMEROUS PROBLEMS DUE TO HIGH WATER CONTINUE ACROSS THE AREA. SEVERAL RIVERS ARE ON THE RISE...WATER REMAINS OVER MANY ROADS...AND SOME BRIDGES8 HAVE BEEN WASHED OUT. IF TRAVELLING IN THE WARNING AREA THIS MORNING BE ON THE ALERT FOR ROAD WASHOUTS. DO NOT DRIVE THROUGH AREAS WHERE WATER COVERS THE ROAD. KING
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 7:17 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 73 min |
| Jun 27, 7:32 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 58 min |
| Jun 27, 7:53 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Winneshiek | 82 min |
| Jun 27, 8:07 PM CDT | Tornado Warning | ARX | Howard, Winneshiek | 53 min |
| Jun 27, 8:21 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 69 min |
| Jun 27, 8:25 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 65 min |
| Jun 27, 8:55 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 35 min |
| Jun 27, 9:28 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 62 min |
| Jun 27, 9:31 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd | 74 min |
| Jun 27, 10:03 PM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 4 hr |
| Jun 27, 10:03 PM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 4 hr |
| Jun 27, 10:16 PM CDT | Flash Flood Warning | ARX | Howard | 4 hr |
| Jun 27, 10:51 PM CDT | Severe Thunderstorm Warning | ARX | Fayette, Winneshiek | 54 min |
| Jun 27, 11:55 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 50 min |
| Jun 28, 1:56 AM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd, Howard, Winneshiek | 8 hr |
| Jun 28, 9:50 AM CDT | Flash Flood Warning | ARX | Allamakee, Chickasaw, Howard, Winneshiek | 4 hr |
| Jun 28, 9:50 AM CDT | Flash Flood Warning | ARX | Floyd | 4 hr |
Nearby
Flash Flood Warnings in Iowa, 1998Every flash flood warning in 1998
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.