Alert archive / South Dakota / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 90, NWS Aberdeen, SD
NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 4, 2015, 10:44 PM CDT for 4 counties in South Dakota. It was in force for 31 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
- Jul 4, 2015, 10:44 PM CDT (03:44 UTC)
- Expired
- Jul 4, 2015, 11:15 PM CDT
- In force
- 31 min
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Edmunds County, SD, Faulk County, SD, Potter County, SD, Walworth County, SD
The radar
The Aberdeen radar (KABR), 95 km from the middle of the area, began a volume at 03:45 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 3.7 hours before the alert went out and 190 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
- 2452 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1727 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 8.0
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 Jul 4, 9:50 PM CDT, 54 minutes earlier.
Area forecast discussion, Jul 4, 9:50 PM CDT, 54 minutes before
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Local storm report, Jul 4, 8:34 PM CDT, 2 hours 10 minutes before
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</html>The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 7:28 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 47 min |
| Jul 4, 7:57 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 48 min |
| Jul 4, 8:33 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley, Sully | 42 min |
| Jul 4, 8:39 PM CDT | Special Weather Statement | ABR | Lyman | 51 min |
| Jul 4, 8:44 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley | 46 min |
| Jul 4, 8:46 PM CDT | Severe Thunderstorm Warning | ABR | Hughes, Lyman | 43 min |
| Jul 4, 9:21 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Stanley | 39 min |
| Jul 4, 9:58 PM CDT | Severe Thunderstorm Warning | ABR | Stanley | 23 min |
| Jul 4, 10:14 PM CDT | Special Weather Statement | ABR | Lyman | 46 min |
| Jul 4, 10:22 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 38 min |
| Jul 5, 12:02 AM CDT | Special Weather Statement | ABR | Brown | 28 min |
| Jul 5, 12:53 AM CDT | Special Weather Statement | ABR | Brown | 52 min |
| Jul 5, 1:40 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Faulk, Spink | 50 min |
| Jul 5, 2:47 AM CDT | Special Weather Statement | ABR | Brown | 43 min |
| Jul 5, 2:58 AM CDT | Severe Thunderstorm Warning | ABR | Brown | 29 min |
| Jul 5, 3:23 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 37 min |
| Jul 5, 3:49 AM CDT | Severe Thunderstorm Warning | ABR | Brown, Spink | 41 min |
| Jul 5, 4:49 AM CDT | Special Weather Statement | ABR | Brown | 56 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2015Every severe thunderstorm warning in 2015
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.