Alert archive / South Dakota / Tornado Warnings in 1990
Tornado Warning 11, NWS Aberdeen, SD
NWS Aberdeen, SD issued this tornado warning at Jul 27, 1990, 1:43 PM CDT for Spink County, South Dakota. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Jul 27, 1990, 1:43 PM CDT (18:43 UTC)
- Expired
- Jul 27, 1990, 2:15 PM CDT
- In force
- 32 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Spink 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
Aberdeen, SD (KHON), launched 12:00Z, 6.7 hours before the alert went out and 6 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
- 1833 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KABR 271843
TORABR
SDC115-271915-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ABERDEEN SD
143 PM CDT FRI JUL 27 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 215 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE NORTHEAST PART OF SOUTH DAKOTA
SPINK
SOME OF THE CITIES INCLUDED IN THIS WARNING ARE REDFIELD...DOLAND
FRANKFORT.
AT 139 PM CDT A TORNADO WAS REPORTED BY THE SPINK COUNTY SHERIFF.
THE THUNDERSTORM THAT HAS PRODUCED THIS TORNADO IS MOVING NORTHEAST
AT 25 MPH.
IF YOU ARE IN THE PATH OF THIS TORNADO...YOU SHOULD GO TO A BASEMENT
SHELTER IF AVAILABLE. OTHERWISE GO TO A CENTRAL INTERIORi ROOM ON THE
LOWEST FLOOR POSSIBLE. CARS AND MOBILE HOMES SHOULD BE ABANDONED FOR
A REINFORCED BUILDING.
GILLESPIEWhat 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, Jul 27, 7:46 AM CDT, 5 hours 57 minutes before
SDZ004-011-271315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 745 AM CDT FRI JUL 27 1990 AT 740 AM CDT RADAR INDICATED THE SEVERE THUNDERSTORM OVER SOUTHEAST SPINK COUNTY HAS WEAKENED TO THE POINT OF HAVING SOME AREAS OF SMALL HAIL AND MODERATE TO HEAVY RAIN. THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED AND IS NOT EXPECTED TO BE REISSUED AT THIS TIME. ADDITIONAL THUNDERSTORMS CONTINUE TO PRODUCE VARIOUS AMOUNT OF RAIN OVER SOUTHERN SPINK COUNTY. WITH THIS ADDITIONAL PRECIPITATION THE SMALL STREAM AND URBAN FLOODING ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT. ROADWAYS HAVE BEEN REPORTED TO BE COVERED IN RURAL AREAS AND THIS CAN BE A VERY DANGEROUS SITUATION WITH THE GRAVEL BASE ROADS THAT CAN BE WASHED AWAY IN A SHORT PERIOD OF TIME. THOSE TRAVELLING SHOULD BE VERY CAREFUL ABOUT ATTEMPTING TO CROSS ANY MOVING WATER ON ROADWAYS. STUDNICKA
Special weather statement, Jul 27, 12:15 PM CDT, 1 hour 28 minutes before
SDZ004-271810- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 1210 PM CDT FRI JUL 27 1990 AT 1205 PM CDT RADAR INDICATED A THUNDERSTORM WITH VERY HEAVY RAIN NEAR FAULKTON...45 MILES SOUTHWEST OF ABERDEEN MOVING NORTHEAST AT 15 MPH. THIS STORM CAN PRODUCE SMALL HAIL..GUSTY WIND...AND HEAVY RAIN AS IT MOVES THROUGH NORTHEAST SOUTH DAKOTA. THIS ADDITIONAL RAIN FALL IN AN AREA THAT IS ALREADY NEARLY SATURATED COULD CAUSE FLOODING PROBLEMS. IF YOU LIVE IN FAULK OR SPINK COUNTY YOU SHOULD BE ALERT TO THIS STORM AND BE PREPARED TO TAKE STEPS TO PROTECT YOURSELF AND YOUR PROPERTY. REMEMBER NEVER TRY TO DRIVE THROUGH A FLOODED AREA. KEEFE
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 7:39 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 66 min |
| Jul 26, 8:52 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 68 min |
| Jul 26, 9:39 PM CDT | Severe Thunderstorm Warning | ABR | Potter, Walworth | 66 min |
| Jul 26, 10:17 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 58 min |
| Jul 27, 2:51 AM CDT | Severe Thunderstorm Warning | ABR | Spink | 69 min |
| Jul 27, 3:06 AM CDT | Severe Thunderstorm Warning | ABR | Brown | 69 min |
| Jul 27, 4:02 AM CDT | Severe Thunderstorm Warning | ABR | Spink | 58 min |
| Jul 27, 6:10 AM CDT | Severe Thunderstorm Warning | ABR | Spink | 35 min |
| Jul 27, 7:13 AM CDT | Severe Thunderstorm Warning | ABR | Spink | 62 min |
| Jul 27, 4:09 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Hamlin, Kingsbury | 66 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.