Alert archive / Iowa / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 80, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at May 8, 2002, 7:58 PM CDT for Wayne County, Iowa. It was in force for 47 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
- May 8, 2002, 7:58 PM CDT (00:58 UTC)
- Expired
- May 8, 2002, 8:45 PM CDT
- In force
- 47 min
- Issued by
- NWS Des Moines, IA
- Area
- Counties, with a storm outline in the text
County Wayne County, IA
The radar
The Des Moines radar (KDMX), 110 km from the middle of the area, began a volume at 01:01 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 |
|---|---|---|---|
| May 8, 5:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 1.0 hours before the alert went out and 258 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -45 m²/s²
- 0-3 km storm-relative helicity
- 157 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KDMX 090058 SVRDSM IAC185-090145- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 758 PM CDT WED MAY 8 2002 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WAYNE COUNTY IN SOUTH CENTRAL IOWA * UNTIL 845 PM CDT * AT 755 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 5 MILES WEST OF HUMESTON TO 11 MILES WEST OF CLIO...OR FROM 49 MILES SOUTH OF DES MOINES TO 68 MILES SOUTH OF DES MOINES...MOVING EAST AT 50 MPH. * SEVERE THUNDERSTORMS WILL BE... NEAR CLIO AROUND 805 PM... NEAR MILLERTON AROUND 810 PM... NEAR CORYDON AROUND 815 PM AND NEAR PROMISE CITY AROUND 825 PM. THIS STORM HAS A HISTORY OF PRODUCING 60 MPH WINDS VERY STRONG WINDS UP TO 60 MPH ARE LIKELY IN THE WARNED AREA. SEEK A STURDY SHELTER SUCH AS A BASEMENT OR INTERIOR ROOM. PLEASE REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE OFFICE NEAR DES MOINES. REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM WEDNESDAY EVENING FOR SOUTHERN IOWA. LAT...LON 4089 9355 4059 9354 4060 9314 4089 9313 JAW
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 48 min |
| May 8, 7:34 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 41 min |
| May 8, 7:36 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Warren | 39 min |
| May 8, 7:55 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 65 min |
| May 8, 8:01 PM CDT | Tornado Warning | DMX | Marion, Warren | 44 min |
| May 8, 8:16 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Monroe | 44 min |
| May 8, 8:26 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Poweshiek | 49 min |
| May 8, 8:36 PM CDT | Tornado Warning | DMX | Mahaska, Marion | 39 min |
| May 8, 8:54 PM CDT | Tornado Warning | DMX | Poweshiek | 36 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2002Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.