Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 113, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 27, 1990, 5:08 PM CDT for Benton County, Tama County, Iowa. It was in force for 52 min.
The area
The counties it named.
The facts
- Issued
- Jun 27, 1990, 5:08 PM CDT (22:08 UTC)
- Expired
- Jun 27, 1990, 6:00 PM CDT
- In force
- 52 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Benton County, IA, Tama 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
Minneapolis, MN (KSTC), launched 12:00Z, 10.1 hours before the alert went out and 325 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
- 2 J/kg
- Mixed-layer CIN
- -429 J/kg
- Mixed-layer LCL
- 1514 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 135 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDSM 272210
SVRDSM
IAC011-171-272300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
508 PM CDT WED JUN 27 1990
THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN EAST CENTRAL IOWA
...NORTHERN BENTON...NORTHEAST TAMA
AT 508 PM...DES MOINES WEATHER RADAR INDICATED A SEVERE THUNDERSTORM
12 MILES SOUTH OF WATERLOO NEAR THE BLACKHAWK...TAMA AND BENTON COUNTY
JUNCTION.
THIS STORM WAS MOVING SOUTH SOUTHEAST AT 15 MILES AN HOUR AND WILL AFFECTHE TOWNS OF BUCKINGHAM...DINSDALE...TRAER...DYSART...GARRISON...MOUNT
AUBURN AND VINTON.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
MYERSThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 7:15 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 30 min |
| Jun 26, 8:18 PM CDT | Severe Thunderstorm Warning | DMX | Adair | 27 min |
| Jun 26, 8:48 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Union | 27 min |
| Jun 26, 9:00 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Grundy | 35 min |
| Jun 27, 2:22 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 53 min |
| Jun 27, 2:52 PM CDT | Severe Thunderstorm Warning | DMX | Floyd | 68 min |
| Jun 27, 3:09 PM CDT | Severe Thunderstorm Warning | DMX | Johnson, Linn | 36 min |
| Jun 27, 3:43 PM CDT | Severe Thunderstorm Warning | DMX | Johnson, Linn | 32 min |
| Jun 27, 3:44 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler | 61 min |
| Jun 27, 4:09 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 66 min |
| Jun 27, 5:48 PM CDT | Severe Thunderstorm Warning | DMX | Benton | 30 min |
| Jun 27, 6:12 PM CDT | Severe Thunderstorm Warning | DMX | Johnson, Linn | 33 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1990Every severe thunderstorm warning 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.