Alert archive / Iowa / Tornado Warnings in 2002
Tornado Warning 7, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at May 8, 2002, 9:07 PM CDT for Iowa County, Keokuk County, Iowa. It was in force for 68 min. 4 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
- May 8, 2002, 9:07 PM CDT (02:07 UTC)
- Expired
- May 8, 2002, 10:15 PM CDT
- In force
- 68 min
- Issued by
- NWS Quad Cities, IA
- Area
- Whole counties
Counties Iowa County, IA, Keokuk County, IA
The radar
The Quad Cities radar (KDVN), 129 km from the middle of the area, began a volume at 02:10 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 |
|---|---|---|---|
| May 8, 9:45 PM CDT | Tornado F0 | Richland, IA | A brief spinup tornado, along the leading edge of a cluster of thunderstorms, produced heavy damage to a farmstead south of Richland. Power lines and large trees were knocked down, and a machine shed and grain bin were destroyed. No injuries were reported. |
| May 8, 9:45 PM CDT | Thunderstorm Wind 57 E | Ollie, IA | Trees and powers lines down. |
| May 8, 9:45 PM CDT | Thunderstorm Wind 57 E | Richland, IA | Trees and power lines down. |
| May 8, 10:05 PM CDT | Hail 1 | Homestead, 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 |
|---|---|---|---|
| May 8, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 2.1 hours before the alert went out and 135 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
- 1642 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 951 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 1.3
- Supercell composite
- 6.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS53 KDVN 090207 TORMLI IAC095-107-090315- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 859 PM CDT WED MAY 8 2002 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * TORNADO WARNING FOR... IOWA COUNTY IN EAST CENTRAL IOWA KEOKUK COUNTY IN SOUTHEAST IOWA * UNTIL 1015 PM CDT * AT 855 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS WITH A POSSIBLE TORNADOES 14 MILES WEST OF DELTA...OR 4 MILES SOUTHEAST OF OSKALOOSA...MOVING EAST AT 40 MPH. ANOTHER TORNADIC ROTATION WAS ON THE LEADING EDGE OF THE STORMS JUST SOUTHWEST OF MONTEZUMA...ALSO HEADING EAST TOWARD SOUTHERN IOWA COUNTY AT 40 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... DELTA BY 913 PM CDT. HAYESVILLE BY 920 PM CDT. 6 MILES SOUTH OF HARPER BY 935 PM CDT. 6 MILES SOUTH OF KEOTA BY 940 PM CDT. MILLERSBURG BY 925 PM CDT. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT OR ON THE LOWEST FLOOR OF A BUILDING IN AN INTERIOR HALLWAY OR ROOM. BRIEF, TORNADOES ARE FAVORABLE TO OCCUR ALONG THE LEADING EDGE OF THE STORMS...CAPABLE OF LOCALIZED, ENHANCED DAMAGE IN ADDITION TO STRAIGHT LINE WINDS. 1 INCH HAIL IS ALSO LIKELY...AS WELL AS 70 MPH WINDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT THURSDAY MORNING FOR EASTERN IOWA AND NORTHWESTERN ILLINOIS AND NORTHEAST MISSOURI. JDH
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 10:00 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 60 min |
| May 8, 10:06 PM CDT | Severe Thunderstorm Warning | DVN | Johnson | 39 min |
Nearby
Tornado Warnings in Iowa, 2002Every tornado warning in 2002Tornadoes in 2002
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.