Alert archive / Iowa / Tornado Warnings in 1998
Tornado Warning 45, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jun 27, 1998, 10:08 PM CDT for Butler County, Iowa. It was in force for 32 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 27, 1998, 10:08 PM CDT (03:08 UTC)
- Expired
- Jun 27, 1998, 10:40 PM CDT
- In force
- 32 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Butler County, IA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 27, 10:23 PM CDT | Tornado F2 | Austinville, IA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 27, 7:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 3.1 hours before the alert went out and 226 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.
920 WFUS1 KDSM 280309 RRA TORDSM IAC023-280340- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DES MOINES IA 1008 PM CDT SAT JUN 27 1998 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN BUTLER COUNTY IN NORTH CENTRAL IOWA * UNTIL 1040 PM CDT * AT 1007 PM CDT... DOPPLER RADAR INDICATED A TORNADO 27 MILES WEST NORTHWEST OF WATERLOO OR 6 MILES WEST NORTHWEST OF PARKERSBURG MOVING EAST AT 25 MPH. * THIS TORNADO CAN BE EXPECTED NEAR... NEAR AUSTINVILLE NOW PARKERSBURG BY 1010 PM CDT GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR MYERS
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 7:27 PM CDT | Tornado Warning | DMX | Worth | 33 min |
| Jun 27, 7:38 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 47 min |
| Jun 27, 7:41 PM CDT | Tornado Warning | DMX | Cerro Gordo | 34 min |
| Jun 27, 8:15 PM CDT | Tornado Warning | DMX | Franklin | 35 min |
| Jun 27, 8:18 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 32 min |
| Jun 27, 8:44 PM CDT | Flash Flood Warning | DMX | Cerro Gordo | 3 hr |
| Jun 27, 8:49 PM CDT | Tornado Warning | DMX | Cerro Gordo | 21 min |
| Jun 27, 8:54 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 36 min |
| Jun 27, 10:33 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 62 min |
| Jun 27, 10:33 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 62 min |
| Jun 27, 10:38 PM CDT | Tornado Warning | DMX | Bremer, Butler | 32 min |
| Jun 27, 10:45 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 50 min |
| Jun 27, 10:57 PM CDT | Severe Thunderstorm Warning | DMX | Grundy | 48 min |
| Jun 27, 11:01 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk, Story | 64 min |
| Jun 27, 11:10 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 50 min |
| Jun 27, 11:18 PM CDT | Severe Thunderstorm Warning | DMX | Polk | 62 min |
| Jun 27, 11:18 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 62 min |
| Jun 27, 11:21 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 64 min |
| Jun 27, 11:24 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 61 min |
| Jun 28, 12:01 AM CDT | Severe Thunderstorm Warning | DMX | Tama | 64 min |
| Jun 28, 12:05 AM CDT | Severe Thunderstorm Warning | DMX | Jasper | 65 min |
| Jun 28, 12:40 AM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 65 min |
Nearby
Tornado Warnings in Iowa, 1998Every tornado warning in 1998Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.