Alert archive / Iowa / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 113, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Aug 3, 1997, 3:38 PM CDT for Scott County, Iowa. It was in force for 47 min. 5 reports 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
- Aug 3, 1997, 3:38 PM CDT (20:38 UTC)
- Expired
- Aug 3, 1997, 4:25 PM CDT
- In force
- 47 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
County Scott County, IA
The radar
The Quad Cities radar (KDVN), 4 km from the middle of the area, began a volume at 20:39 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 |
|---|---|---|---|
| Aug 3, 4:05 PM CDT | Hail 1 | Bettendorf, IA | |
| Aug 3, 4:10 PM CDT | Thunderstorm Wind 60 | Davenport, IA | Wind blew a tree into an occupied car. The two occupants suffered minor injuries. |
| Aug 3, 4:15 PM CDT | Thunderstorm Wind 60 | Bettendorf, IA | Numerous trees downed. |
| Aug 3, 4:15 PM CDT | Thunderstorm Wind 60 | Davenport, IA | Wind damage to several wooden buildings at the Mississippi Valley Fairgrounds. Winds struck on the final day of the fair, felling many large trees, flattening every booth and tent, and knocking over portable bathrooms. |
| Aug 3, 4:20 PM CDT | Thunderstorm Wind 69 | Bettendorf, IA | Winds were strong enough to snap cables which held a Bettendorf, Iowa casino riverboat to the Dock. The Casino boat and 1,076 patrons then took an unexpected cruse in the MIssissippi River for 90 minutes before they could be re-docked. One Casino employee wa |
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 |
|---|---|---|---|
| Aug 3, 2:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.6 hours before the alert went out and 10 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
- 13 J/kg
- Mixed-layer CIN
- -260 J/kg
- Mixed-layer LCL
- 1867 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMLI 032038 RRA SVRMLI IAC163-032125- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 338 PM CDT SUN AUG 3 1997 * SEVERE THUNDERSTORM WARNING FOR SCOTT COUNTY IN EAST CENTRAL IOWA * UNTIL 425 PM CDT * SOME LOCATIONS AFFECTED LONG GROVE AROUND 340 PM CDT PROBSTEI AROUND 340 PM CDT GAMBRILL AROUND 345 PM CDT PARK VIEW AROUND 345 PM CDT ELDRIDGE AROUND 345 PM CDT DAVENPORT AROUND 400 PM CDT BETTENDORF AROUND 405 PM CDT * AT 336 PM CDT...A SEVERE THUNDERSTORM WAS INDICATED BY QUAD CITIES IA DOPPLER RADAR 16 MILES NORTH OF QUAD CITIES OR 4 MILES NORTHWEST OF LONG GROVE MOVING SOUTHEAST AT 25 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND TORRENTIAL DOWNPOURS. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HENDRICKS
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 2:02 PM CDT | Severe Thunderstorm Warning | DVN | Jones | 63 min |
| Aug 3, 2:30 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 65 min |
| Aug 3, 2:50 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 50 min |
| Aug 3, 2:53 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 62 min |
| Aug 3, 2:58 PM CDT | Tornado Warning | DVN | Clinton | 47 min |
| Aug 3, 3:20 PM CDT | Severe Thunderstorm Warning | DVN | Benton | 65 min |
| Aug 3, 3:51 PM CDT | Tornado Warning | DVN | Scott | 49 min |
| Aug 3, 4:47 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 48 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1997Every severe thunderstorm warning in 1997
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; radar from the NEXRAD Level II archive.