Alert archive / Iowa / Tornado Warnings in 1990
Tornado Warning 19, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jun 16, 1990, 7:12 AM CDT for Jasper County, Iowa. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jun 16, 1990, 7:12 AM CDT (12:12 UTC)
- Expired
- Jun 16, 1990, 7:45 AM CDT
- In force
- 33 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Jasper 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, 0.2 hours before the alert went out and 279 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
- 3656 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 237 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 161213
TORDSM
IAC099-161245-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
712 AM CDT SAT JUN 16 1990
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 745 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CENTRAL IOWA
...SOUTHERN JASPER
AT 707 AM...AN OFF-DUTY POLICE OFFICER SIGHTED A TORNADO 3 MILES WEST
OF MONROE IN JASPER COUNTY IN CENTRAL IOWA...LOCATED ABOUT 25 MILES
EAST OF DES MOINES.
AT 0705 AM...NATIONAL WEATHER SERVICE RADAR IN DES MOINES CONTINUED TO
SHOW A VERY STRONG THUNDERSTORM IN JASPER COUNTY...MOVING EAST AT 40
MILES AN HOUR.
THIS WARNING INCLUDES THE CITY OF MONROE...AS WELL AS
REASNOR...GALESBURG...KILLDUFF...SULLY AND LYNNVILLE.
THIS WARNING DOES NOT INCLUDE THE CITY OF NEWTON.
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 BASHEMENT 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.The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 6:13 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 62 min |
| Jun 16, 6:17 AM CDT | Tornado Warning | DMX | Polk | 43 min |
| Jun 16, 6:41 AM CDT | Flash Flood Warning | DMX | Polk | 3 hr |
| Jun 16, 7:22 AM CDT | Flash Flood Warning | DMX | Dallas | 4 hr |
| Jun 16, 9:16 AM CDT | Flash Flood Warning | DMX | Marion, Warren | 3 hr |
| Jun 16, 9:48 AM CDT | Flash Flood Warning | DMX | Johnson | 3 hr |
| Jun 16, 1:36 PM CDT | Flash Flood Warning | DMX | Union | 114 min |
| Jun 16, 1:36 PM CDT | Tornado Warning | DMX | Mahaska | 54 min |
| Jun 16, 1:36 PM CDT | Tornado Warning | DMX | Keokuk, Wapello | 44 min |
| Jun 16, 2:16 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Jefferson, Van Buren | 44 min |
| Jun 16, 4:51 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 39 min |
| Jun 16, 5:15 PM CDT | Severe Thunderstorm Warning | DMX | Madison, Union | 30 min |
| Jun 16, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 26 min |
| Jun 16, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 26 min |
| Jun 16, 6:16 PM CDT | Severe Thunderstorm Warning | DMX | Clarke | 29 min |
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; the sounding from the Mesonet's radiosonde archive.