Alert archive / South Dakota / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 91, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 1, 1992, 7:20 PM CDT for Roberts County, South Dakota. It was in force for 25 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 1, 1992, 7:20 PM CDT (00:20 UTC)
- Expired
- Aug 1, 1992, 7:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Roberts County, SD
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 1, 7:32 PM CDT | Hail 0.75 | Roberts, SD |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 0.3 hours before the alert went out and 140 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
- 2071 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1506 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
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
Local storm report, Aug 1, 5:37 PM CDT, 1 hour 43 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
536 PM CDT SAT AUG 1 1992
STORM DATA FOR SAT AUG 1 1992
TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE
.......................................................................
433 PM CDT DAY...PIEPONT 5E. WIND 60 TO 65 MPH.
435 PM CDT BROWN...TACOMA PARK 1E WIND DAMAGE. TREE LIMBS 3 IN
DIAMETER BROKEN CLEAN.
440 PM CDT BROWN...TACOMA PARK 3W SEVERE WIND DAMAGE TO CROPS.
ESTIMATED WIND 60 TO 65 MPH.
R.S.Local storm report, Aug 1, 6:55 PM CDT, 25 minutes before
STORM REPORT NATIONAL WEATHER SERVICE ABERDEEN SD 655 PM CDT SAT AUG 1 1992 STORM DATA FOR SAT AUG 1 1992 TIME COUNTY..LOCATION CHARACTER OF STORM..DAMAGE ....................................................................... 610 PM CDT WALWORTH...MOBRIDGE WATER PLANT...WND GUST TO 58. 616 PM CDT WALWORTH...MOBRIDGE WND GUST TO 60 MPH. (POLICE) 620 PM CDT WALWORTH...MOBRIDGE WATER PLANT...WND GUST TO 60. R.S.
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:24 PM CDT | Severe Thunderstorm Warning | ABR | Potter | 66 min |
| Aug 1, 7:37 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 38 min |
| Aug 1, 7:41 PM CDT | Tornado Warning | ABR | Spink | 34 min |
| Aug 1, 8:26 PM CDT | Severe Thunderstorm Warning | ABR | Hand | 64 min |
| Aug 1, 8:40 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 65 min |
| Aug 1, 9:14 PM CDT | Severe Thunderstorm Warning | ABR | Beadle, Jerauld, Sanborn | 61 min |
| Aug 1, 10:08 PM CDT | Severe Thunderstorm Warning | ABR | Beadle, Kingsbury, Miner | 67 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1992Every severe thunderstorm warning in 1992
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.