Alert archive / Iowa / Tornado Warnings in 2004
Tornado Warning 45, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Aug 26, 2004, 11:00 PM CDT for Delaware County, Dubuque County, Iowa. It was in force for 45 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
- Aug 26, 2004, 11:00 PM CDT (04:00 UTC)
- Expired
- Aug 26, 2004, 11:45 PM CDT
- In force
- 45 min
- Issued by
- NWS Quad Cities, IA
- Area
- Counties, with a storm outline in the text
Counties Delaware County, IA, Dubuque County, IA
The radar
The Quad Cities radar (KDVN), 96 km from the middle of the area, began a volume at 04:00 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 |
|---|---|---|---|
| Aug 26, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 4.0 hours before the alert went out and 98 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
- 3587 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 132 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 3.5
- Supercell composite
- 18.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDVN 270400 TORDVN IAC055-061-270445- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 1100 PM CDT THU AUG 26 2004 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN DELAWARE COUNTY IN NORTHEAST IOWA DUBUQUE COUNTY IN NORTHEAST IOWA * UNTIL 1145 PM CDT * AT 1053 PM CDT...TRAINED SPOTTERS REPORTED A TORNADO NEAR HOPKINTON...OR ABOUT 16 MILES SOUTHEAST OF MANCHESTER...MOVING EAST AT 25 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... WORTHINGTON BY 1105 PM CDT 5 MILES SOUTH OF FARLEY BY 1120 PM CDT EPWORTH AND 9 MILES SOUTH OF BANKSTON BY 1125 PM CDT PEOSTA BY 1135 PM CDT 5 MILES SOUTH OF CENTRALIA BY 1140 PM CDT 8 MILES SOUTH OF ASBURY BY 1145 PM CDT THE SAFEST PLACE TO BE IN A TORNADO IS IN A BASEMENT OR INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR OF A BUILDING. TORNADOES AT NIGHT ARE DIFFICULT TO SEE AND ARE ESPECIALLY DANGEROUS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT FRIDAY MORNING FOR EASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. LAT...LON 4242 9131 4229 9124 4233 9063 4257 9075 $$ DLF
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 9:31 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Iowa | 44 min |
| Aug 26, 10:08 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 52 min |
| Aug 26, 10:14 PM CDT | Tornado Warning | DVN | Linn | 46 min |
| Aug 26, 10:41 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 64 min |
| Aug 26, 10:47 PM CDT | Tornado Warning | DVN | Jones | 43 min |
| Aug 26, 11:06 PM CDT | Severe Thunderstorm Warning | DVN | Iowa | 54 min |
| Aug 26, 11:16 PM CDT | Severe Thunderstorm Warning | DVN | Johnson | 59 min |
| Aug 26, 11:22 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 53 min |
| Aug 26, 11:34 PM CDT | Severe Thunderstorm Warning | DVN | Cedar | 56 min |
| Aug 26, 11:47 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Van Buren | 58 min |
| Aug 27, 1:25 AM CDT | Flash Flood Warning | DVN | Lee, Van Buren | 9 hr |
Nearby
Tornado Warnings in Iowa, 2004Every tornado warning in 2004Tornadoes in 2004
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.