Alert archive / Iowa / Tornado Warnings in 1990
Tornado Warning 24, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jun 16, 1990, 9:03 PM CDT for Appanoose County, Iowa. It was in force for 27 min. 1 report 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
- Jun 16, 1990, 9:03 PM CDT (02:03 UTC)
- Expired
- Jun 16, 1990, 9:30 PM CDT
- In force
- 27 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Appanoose 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 |
|---|---|---|---|
| Jun 16, 9:17 PM CDT | Tornado F0 | Appanoose, 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
Topeka, KS (KTOP), launched 00:00Z, 2.1 hours before the alert went out and 306 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
- 3235 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1012 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 260 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 14.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDSM 170203
TORDSM
IAC007-170230-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
903 PM CDT SAT JUN 16 1990
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 930 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH CENTRAL IOWA
...APPANOOSE
AT 900 PM...A TORNADO WAS REPORTED NEAR CENTERVILLE...ABOUT 30 MILES
SOUTHWEST OF OTTUMWA.
THE TORNADO WAS MOVING SOUTHEAST AT 20 MILES AN HOUR. THIS STORM WILL
BE AFFECTING THE CITIES OF CENTERVILLE AND MOULTON.
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.
TRUETT/ELLISThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 7:17 PM CDT | Tornado Warning | DMX | Lucas | 18 min |
| Jun 16, 7:33 PM CDT | Tornado Warning | DMX | Monroe | 27 min |
| Jun 16, 9:29 PM CDT | Tornado Warning | DMX | Buena Vista | 31 min |
| Jun 16, 9:33 PM CDT | Severe Thunderstorm Warning | DMX | Clay, Palo Alto, Pocahontas | 42 min |
| Jun 16, 9:45 PM CDT | Tornado Warning | DMX | Appanoose | 30 min |
| Jun 16, 9:50 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth | 40 min |
| Jun 16, 9:57 PM CDT | Tornado Warning | DMX | Van Buren | 33 min |
| Jun 16, 9:57 PM CDT | Tornado Warning | DMX | Monroe | 33 min |
| Jun 16, 10:16 PM CDT | Tornado Warning | DMX | Appanoose, Davis, Monroe, Wapello | 29 min |
| Jun 16, 10:17 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 28 min |
| Jun 16, 10:30 PM CDT | Severe Thunderstorm Warning | DMX | Webster, Wright | 45 min |
| Jun 16, 10:53 PM CDT | Tornado Warning | DMX | Jones | 37 min |
| Jun 16, 10:53 PM CDT | Tornado Warning | DMX | Jefferson, Van Buren | 37 min |
| Jun 16, 11:11 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton | 49 min |
| Jun 16, 11:34 PM CDT | Severe Thunderstorm Warning | DMX | Jefferson, Van Buren | 26 min |
| Jun 16, 11:47 PM CDT | Severe Thunderstorm Warning | DMX | Audubon | 28 min |
| Jun 17, 3:14 AM CDT | Flash Flood Warning | DMX | Crawford | 3 hr |
| Jun 17, 4:09 AM CDT | Flash Flood Warning | DMX | Washington | 3 hr |
Nearby
Tornado Warnings in Iowa, 1990Every tornado warning in 1990Tornadoes in 1990
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.