Alert archive / Iowa / Tornado Warnings in 1988
Tornado Warning 8, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at May 8, 1988, 2:35 PM CDT for Johnson County, Iowa. It was in force for 40 min. 3 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, 1988, 2:35 PM CDT (19:35 UTC)
- Expired
- May 8, 1988, 3:15 PM CDT
- In force
- 40 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Johnson County, IA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 8, 2:42 PM CDT | Tornado F2 | Johnson, IA | |
| May 8, 3:00 PM CDT | Tornado F0 | Johnson, IA | |
| May 8, 3:05 PM CDT | Thunderstorm Wind 50 | Johnson, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Peoria Regional, IL (KPIA), launched 12:00Z, 7.6 hours before the alert went out and 200 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
- 1404 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 194 m²/s²
- 0-3 km storm-relative helicity
- 203 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDSM 081936
TORDSM
IAC095-103-082015-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
235 PM CDT SUN MAY 8 1988
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 315 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN EAST CENTRAL IOWA
...EASTERN IOWA...JOHNSON
AT 230 PM...IOWA COUNTY SHERIFFS AND POLICE DEPARTMENTS CONTINUE TO
MONITOR THE PROGREES OF SEVERAL TORNADOES MOVING EAST NORTHEAST ACROSS
THE SOUTHERN PART OF IOWA COUNTY.
THE TORNADOES WERE SOUTH OF WILLIAMSBURG AND EAST OF PARNELL OR ABOUT
20 TO 25 MILES WEST OF IOWA CITY.
EXPECTED TRACK OF THESE STORMS WILL AFFECT FRYTOWN AND THE ENTIRE IOWA
CITY AREA BY 300 PM. THESE TORNADOES WILL BE NEARING INTERSTATE 80 IN
THE IOWA CITY AREA.
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.
DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF
A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO
STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.
MYERSWhat 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, May 8, 2:17 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 215 PM CDT SUN MAY 8 1988 A TORNADO WATCH CONTINUES FOR A LARGE PART OF CENTRAL AND EASTERN IOWA UNTIL 400 PM... A LINE OF SEVERE THUNDERSTORMS WILL MOVING INTO THE CEDAR RAPIDS AND IOWA CITY AREA BETWEEN 215 PM AND 300 PM THIS AFTERNOON. LARGE HAIL...DAMAGING WINDS AND HEAVY RAIN ARE LIKELY WITH SOME PEOPLE SHOULD BE ON THE LOOKOUT...AND LISTEN FOR POSSIBLE WARNING OR STATEMENTS. LARGE HAIL...DAMAGING WINDS AND HEAVY RAIN ARE LIKELY WITH THESE STORMS. THE STORMS WERE MOVING NORTHEAST AT 45 MILES AN HOUR...WHILE THE LINE WAS MOVING EAST AT 15 MILES AN HOUR. MCQIRTER
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 7:45 PM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 30 min |
| May 7, 8:20 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 25 min |
| May 7, 8:35 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 40 min |
| May 7, 8:50 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas | 40 min |
| May 7, 9:05 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 35 min |
| May 7, 9:30 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 20 min |
| May 7, 9:31 PM CDT | Severe Thunderstorm Warning | DMX | Crawford, Sac | 44 min |
| May 8, 12:02 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 43 min |
| May 8, 4:38 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 37 min |
| May 8, 9:42 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 33 min |
| May 8, 10:26 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 34 min |
| May 8, 11:08 AM CDT | Severe Thunderstorm Warning | DMX | Madison | 52 min |
| May 8, 11:20 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Warren | 70 min |
| May 8, 11:41 AM CDT | Severe Thunderstorm Warning | DMX | Polk | 49 min |
| May 8, 11:44 AM CDT | Severe Thunderstorm Warning | DMX | Franklin | 61 min |
| May 8, 12:01 PM CDT | Tornado Warning | DMX | Jasper | 29 min |
| May 8, 12:15 PM CDT | Tornado Warning | DMX | Jasper | 45 min |
| May 8, 12:25 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 65 min |
| May 8, 12:34 PM CDT | Severe Thunderstorm Warning | DMX | Marshall | 41 min |
| May 8, 12:43 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 32 min |
| May 8, 12:55 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 50 min |
| May 8, 12:58 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 47 min |
| May 8, 1:24 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 36 min |
| May 8, 1:25 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 35 min |
| May 8, 1:33 PM CDT | Tornado Warning | DMX | Poweshiek | 27 min |
| May 8, 1:40 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 50 min |
| May 8, 2:01 PM CDT | Tornado Warning | DMX | Iowa, Poweshiek | 29 min |
| May 8, 2:11 PM CDT | Tornado Warning | DMX | Keokuk, Mahaska | 49 min |
| May 8, 2:23 PM CDT | Severe Thunderstorm Warning | DMX | Buchanan, Fayette | 42 min |
| May 8, 2:35 PM CDT | Tornado Warning | DMX | Iowa | 30 min |
| May 8, 3:00 PM CDT | Tornado Warning | DMX | Washington | 30 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.