Alert archive / South Dakota / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 82, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 7, 1990, 8:59 PM CDT for Edmunds County, McPherson County, South Dakota. It was in force for 61 min.
The area
The counties it named.
The facts
- Issued
- Jul 7, 1990, 8:59 PM CDT (01:59 UTC)
- Expired
- Jul 7, 1990, 10:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Edmunds County, SD, McPherson 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 00:00Z, 2.0 hours before the alert went out and 100 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
- 1810 J/kg
- Mixed-layer CIN
- -130 J/kg
- Mixed-layer LCL
- 2576 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm 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 7, 7:48 PM CDT, 1 hour 11 minutes before
SDZ003-010-080245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 747 PM CDT SAT JUL 7 1990 ...THUNDERSTORM DEVELOPING IN NORTH CENTRAL SOUTH DAKOTA... AT 743 PM CDT RADAR INDICATED THUNDERSTORMS IN NORTHCENTRAL SOUTH DAKOTA FROM 50 MILES WEST NORTHWEST OF PIERRE SOUTH DAKOTA NORTHEAST TO 35 MILES NORTHWEST OF MOBRIDGE SOUTH DAKOTA. MOVEMEAT OF THE THUNDERSTORMS WAS EAST AT 25 MPH. RESIDENTS OF NORTH CENTRAL SOUTH DAKOTA CAN EXPECT HEAVY RAINS AND POSSIBLE SMALL HAIL ALONG WITH STRONG GUSTY WINDS WITH THE THUNDERSTORMS AS THEY PASS. THE THUNDERSTORMS SHOULD BE EAST OF THE MISSOURI RIVER BY 10 PM CDT. GILLESPIE
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 8:23 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 11 min |
| Jul 7, 8:31 PM CDT | Severe Thunderstorm Warning | ABR | Campbell | 59 min |
| Jul 7, 8:35 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 55 min |
| Jul 7, 9:34 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 56 min |
| Jul 7, 9:42 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 63 min |
| Jul 7, 10:21 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 58 min |
| Jul 7, 11:13 PM CDT | Severe Thunderstorm Warning | ABR | Day | 62 min |
| Jul 7, 11:13 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 52 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 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.