Alert archive / South Dakota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 147, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 26, 1998, 5:52 PM MDT for Dewey County, South Dakota. It was in force for 63 min. 3 reports 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 26, 1998, 5:52 PM MDT (23:52 UTC)
- Expired
- Aug 26, 1998, 6:55 PM MDT
- In force
- 63 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Dewey County, SD
The radar
The Bismarck radar (KBIS), 180 km from the middle of the area, began a volume at 23:52 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 26, 6:00 PM MDT | Hail 2.75 | Lantry, SD | |
| Aug 26, 6:00 PM MDT | Thunderstorm Wind 70 | Lantry, SD | Winds gusting to 80 mph combined with baseball size hail broke windows out of a house north of Lantry and also damaged the house and other buildings. |
| Aug 26, 6:50 PM MDT | Hail 0.88 | Timber Lake, 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.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.9 hours before the alert went out and 180 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
- 611 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 1615 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 161 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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.
NWS Aberdeen, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 26, 8:38 AM MDT, 9 hours 14 minutes earlier.
Area forecast discussion, Aug 26, 8:38 AM MDT, 9 hours 14 minutes before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD AND FOR TRAVERSE/BIG STONE COUNTIES OF MN NATIONAL WEATHER SERVICE ABERDEEN SD 938 AM CDT WED AUG 26 1998 ABR RADAR THIS MORNING SHOWING SOME SCT SHRAS AND TSRAS ACROSS NC SD AND THESE SHOULD CONTINUE THROUGH THE AFTERNOON. C SD WILL ALSO SEE SOME SHRAS AND TSRAS. RR QUAD OF JET AND WAA LOOK TO BE RESPONSIBLE FOR THE CLOUDS AND PRECIP. 12Z RUC MODEL SHOWING THE INSTABILITY REMAINING ACROSS C AND NC SD THROUGH THE AFTERNOON AND ALSO SHOWING SOME FAIRLY STRONG SOUTH WINDS BY 21Z. THEREFORE...WILL UPDATE ALL SD ZONES TO INCREASE CLOUDS AND WINDS AND INCREASE POPS AND LOWER TEMPS ACROSS THE C AND NC. .ABR...NONE. MOHR
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 4:06 PM MDT | Severe Thunderstorm Warning | ABR | Jones | 64 min |
| Aug 26, 5:06 PM MDT | Severe Thunderstorm Warning | ABR | Jones | 64 min |
| Aug 26, 5:43 PM MDT | Severe Thunderstorm Warning | ABR | Walworth | 62 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.