Alert archive / South Dakota / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 153, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 27, 1998, 2:21 AM CDT for Hughes County, South Dakota. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 27, 1998, 2:21 AM CDT (07:21 UTC)
- Expired
- Aug 27, 1998, 3:25 AM CDT
- In force
- 64 min
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Hughes County, SD
The radar
The Aberdeen radar (KABR), 172 km from the middle of the area, began a volume at 07:22 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.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 7.4 hours before the alert went out and 138 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
- 851 J/kg
- Mixed-layer CIN
- -185 J/kg
- Mixed-layer LCL
- 1555 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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, 9:30 PM CDT, 4 hours 51 minutes earlier.
Area forecast discussion, Aug 26, 9:30 PM CDT, 4 hours 51 minutes before
AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD AND FOR TRAVERSE/BIG STONE COUNTIES OF MN NATIONAL WEATHER SERVICE ABERDEEN SD 930 PM CDT WED AUG 26 1998 ABR RADAR INDICATING TSRA CONTINUING IN THE WESTERN HALF OF OUR CWA. THESE STORMS HAVE WEAKENED BELOW SEVERE LEVELS BUT ARE STILL PRODUCING LOCALLY HEAVY DOWNPOURS. THESE STORMS ARE MOVING SLOWLY AND HAVE PRODUCED UP TO 3.5 INCHES OF RAIN...CAUSING SOME FLOODING...PRIMARILY IN EASTERN CORSON COUNTY. WILL STICK WITH CURRENT PACKAGE SINCE CONVECTION IS EXPECTED TO CONTINUE FOR SEVERAL MORE HOURS WHILE REMAINING BELOW SEVERE LEVELS. CURRENT PACKAGE IS ON TRACK. .ABR...NONE. WCT
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 7:43 PM CDT | Severe Thunderstorm Warning | ABR | Walworth | 62 min |
| Aug 26, 8:00 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 45 min |
| Aug 26, 8:56 PM CDT | Flash Flood Warning | ABR | Corson | 3 hr |
| Aug 26, 10:07 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, Walworth | 58 min |
| Aug 26, 11:39 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 61 min |
| Aug 27, 1:44 AM CDT | Severe Thunderstorm Warning | ABR | Stanley | 61 min |
| Aug 27, 2:17 AM CDT | Flash Flood Warning | ABR | Walworth | 93 min |
| Aug 27, 2:47 AM CDT | Severe Thunderstorm Warning | ABR | Stanley | 63 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.