Alert archive / South Dakota / Tornado Warnings in 1990
Tornado Warning 2, NWS Aberdeen, SD
NWS Aberdeen, SD issued this tornado warning at Jun 1, 1990, 3:57 PM MDT for Corson County, Dewey County, South Dakota. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jun 1, 1990, 3:57 PM MDT (21:57 UTC)
- Expired
- Jun 1, 1990, 4:30 PM MDT
- In force
- 33 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Corson County, SD, Dewey County, SD
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
Bismarck Municip, ND (KBIS), launched 12:00Z, 10.0 hours before the alert went out and 151 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
- 424 J/kg
- Mixed-layer CIN
- -350 J/kg
- Mixed-layer LCL
- 1326 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 165 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 KABR 012157
TORABR
SDC031-041-012230-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
357 PM MDT FRI JUN 1 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 430 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN THE NORTH CENTRAL PART OF SOUTH DAKOTA
CORSON...NORTHERN DEWEY
SOME OF THE CITIES INCLUDED IN THIS WARNING ARE ISABEL...BULLHEAD..
.MCINTOSH
AT 455 PM CDT A TORNADO WAS REPORTED ON THE GROUND 2 MILES EAST
OF ISABEL. THE STORM THAT CAUSED THIS IS MOVING NORTHEAST AT 20 MPH
IF YOU ARE IN THE PATH OF THIS TORNADO...YOU SHOULD GO TO A BASEMENT
SHELTER IF AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIOR ROOM ON THE
LOWEST FLOOR POSSIBLE. CARS AND MOBILE HOMES SHOULD BE ABANDONED FOR
A REINFORCED BUILDING.
KEEFEWhat 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, Jun 1, 1:50 PM MDT, 2 hours 7 minutes before
SDZ003-012100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 250 PM CDT FRI JUN 1 1990 ...TORNADO WATCH FOR CENTRAL SOUTH DAKOTA UNTIL 10 PM CDT... AT 245 PM CDT NATIONAL WEATHER SERVICE RADAR INDICATED AN INTENSE THUNDERSTORM WITH VERY HEAVY RAIN HAD FORMED 50 MILES SOUTHWEST OF MOBRIDGE SOUTH DAKOTA IN SOUTHERN DEWEY COUNTY AND WAS MOVING NORTH AT 15 MPH. THIS STORM CAN PRODUCE HEAVY RAIN...SMALL HAIL..AND DANGEROUS LIGHTNI7NG. CAMPERS AND BOATERS SHOULD BE AWARE OF THIS STORM AND BE PREPARED TO TAKE ACTION TO ENSURE SAFETY. KEEFE
Special weather statement, Jun 1, 3:13 PM MDT, 44 minutes before
SDZ003-004-012200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 414 PM CDT FRI JUN 1 1990 ...TORNADO WATCH FOR CENTRAL SOUTH DAKOTA UNTIL 10 PM CDT... AT 410 PM CDT RADAR SHOWED AN INTENSE THUNDERSTORM WITH VERY HEAVY RAIN NEAR LOWRY...30 MILES SOUTHEAST OF MOBRIDGE...MOVING NORTHEAST AT 20 MPH. AS THIS STORM HAS PRODUCED SMALL HAIL...HEAVY RAIN...AND GUSTY WIND. IF YOU LIVE IN NORTHEAST SOUTH DAKOTA YOU SGOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. KEEFE
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 4:34 PM MDT | Severe Thunderstorm Warning | ABR | McPherson | 56 min |
Nearby
Tornado Warnings in South Dakota, 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.