Alert archive / Iowa / Tornado Warnings in 1998
Tornado Warning 47, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Jun 29, 1998, 2:24 PM CDT for Benton County, Iowa County, Iowa. It was in force for 36 min. 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 29, 1998, 2:24 PM CDT (19:24 UTC)
- Expired
- Jun 29, 1998, 3:00 PM CDT
- In force
- 36 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
Counties Benton County, IA, Iowa County, IA
The radar
The Quad Cities radar (KDVN), 127 km from the middle of the area, began a volume at 19:26 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 29, 1:00 PM CDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.4 hours before the alert went out and 133 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
- 917 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
152 WFUS1 KMLI 291927 RRA TORMLI IAC011-095-292000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 224 PM CDT MON JUN 29 1998 THE NATIONAL WEATHER SERVICE IN QUAD CITIES IA HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN BENTON COUNTY IN EAST CENTRAL IOWA NORTHERN IOWA COUNTY IN EAST CENTRAL IOWA * UNTIL 300 PM CDT * AT 226 PM CDT... DOPPLER RADAR INDICATED A DEVELOPING TORNADO 24 MILES WEST OF CEDAR RAPIDS OR 6 MILES WEST OF WATKINS MOVING EAST AT 35 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... NEWHALL AROUND 235 PM CDT WATKINS AROUND 235 PM CDT WILLIAMSBURG AROUND 235 PM CDT CONROY AROUND 235 PM CDT WEST AMANA AROUND 235 PM CDT GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR BERG
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 1:53 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 62 min |
| Jun 29, 2:11 PM CDT | Severe Thunderstorm Warning | DVN | Keokuk | 64 min |
| Jun 29, 2:30 PM CDT | Severe Thunderstorm Warning | DVN | Johnson, Linn | 65 min |
| Jun 29, 2:42 PM CDT | Tornado Warning | DVN | Keokuk | 33 min |
| Jun 29, 2:46 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Washington | 64 min |
| Jun 29, 2:53 PM CDT | Tornado Warning | DVN | Johnson | 62 min |
| Jun 29, 2:55 PM CDT | Tornado Warning | DVN | Washington | 65 min |
| Jun 29, 3:07 PM CDT | Tornado Warning | DVN | Cedar, Muscatine | 63 min |
| Jun 29, 3:07 PM CDT | Tornado Warning | DVN | Henry, Louisa | 63 min |
| Jun 29, 3:07 PM CDT | Tornado Warning | DVN | Van Buren | 63 min |
| Jun 29, 3:22 PM CDT | Tornado Warning | DVN | Des Moines, Lee | 63 min |
| Jun 29, 3:26 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 64 min |
| Jun 29, 6:03 PM CDT | Tornado Warning | DVN | Lee | 62 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.