Alert archive / Iowa / Tornado Warnings in 1988
Tornado Warning 11, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Aug 8, 1988, 6:17 PM CDT for Lucas County, Marion County, Warren County, Iowa. It was in force for 28 min.
The area
The counties it named.
The facts
- Issued
- Aug 8, 1988, 6:17 PM CDT (23:17 UTC)
- Expired
- Aug 8, 1988, 6:45 PM CDT
- In force
- 28 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Lucas County, IA, Marion County, IA, Warren County, IA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.3 hours before the alert went out and 254 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
- 3648 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 127 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 KDSM 082319
TORDSM
IAC181-117-125-082345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
617 PM CDT MON AUG 8 1988
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE SOUTH CENTRAL PART OF IOWA
EXTREME SOUTHEAST WARREN...NORTHERN LUCAS...SOUTHWEST
MARION
RADAR INDICATED A VERY INTENSE THUNDERSTORM IN NORTHWEST LUCAS
COUNTY OF SOUTH CENTRAL IOWA. THIS IS ABOUT 35 MILES SOUTH OF
DES MOINES.
A FUNNEL CLOUD WAS REPORTED NEAR LUCAS AROUND 610 PM CDT.
THE STORM WAS MOVING NORTHEAST AROUND 35 MILES AN HOUR.
PERSONS IN THE TOWNS OF LACONA...DALLAS...AND MELCHER SHOULD BE
ALERT FOR SEVERE WEATHER AND A POSSIBLE TORNADO.
IF YOU ARE IN THE PATH OF THIS TORNADO...THE SAFEST PLACE IS IN A
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF
NO BASEMENT IS AVAILABLE...SyEEK SHELTER IN AN INTERIOR ROOM ON THE
LOWEST FLOOR. IF YOU ARE IN A VEHICLE OR MOBILE HOME...LEAVE IT AT
ONCE AND TAKE SHELTER IN A REINFORCED BUILDING OR IN A DITCH.
ADAMS/TRUETTWhat forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 8, 5:50 PM CDT, 27 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 547 PM CDT MON AUG 8 1988 ...SEVERE THUNDERSTORM WATCH FOR MUCH OF THE SOUTHEAST THIRD OF IOWA UNTIL 9 PM... AT 530 PM CDT...AN INTENSE THUNDERSTORM WAS INDICATED OVER SOUTHEAST IOWA 30 MILES SOUTH OF CEDAR RAPIDS. THIS STORM WAS MOVING NORTHEAST AT 35 MILES AN HOUR. BY 630 PM THIS STORM SHOULD BE LOCATED 30 MILES EAST OF CEDAR RAPIDS NEAR TIPTON. THIS STORM WILL PRODUCE HAIL...STRONG WINDS AND HEAVY DOWNPOURS. ANOTHER INTENSE THUNDERSTORM WAS LOCATED OVER SOUTH CENTRAL IOWA... MIDWAY BETWEEN CRESTON AND LAMONI. THIS STORM WAS MOVING EAST NORTHEAST AT 35 MILES AN HOUR AND SHOULD BE JUST EAST OF OSCEOLA BY 630 PM. LARGE HAIL AND STRONG WINDS ARE POSSIBLE FROM THIS THUNDERSTORM. SCATTERED SHOWERS AND THUNDERSTORMS WERE LOCATED SOUTHEAST OF A LINE FROM CRESTON TO DUBUQUE. A NARROW BAND OF SHOWERS AND THUNDERSHOWERS WAS INDICATEDB FROM 30 MILES SOUTHWEST THROUGH 40 MILES NORTHEAST OF DES MOINES. ALL OF THIS PRECIPITATION WAS MOVING NORTHEAST AT 35 MILES AN HOUR.
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 3:50 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 40 min |
| Aug 8, 4:00 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 45 min |
| Aug 8, 4:00 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 15 min |
| Aug 8, 4:02 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 28 min |
| Aug 8, 4:39 PM CDT | Severe Thunderstorm Warning | DMX | Linn | 51 min |
| Aug 8, 5:30 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Union | 45 min |
| Aug 8, 5:58 PM CDT | Severe Thunderstorm Warning | DMX | Lucas | 32 min |
Nearby
Tornado Warnings in Iowa, 1988Every tornado warning in 1988Tornadoes in 1988
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.