Alert archive / South Dakota / Flash Flood Warnings in 1999
Flash Flood Warning 16, NWS Aberdeen, SD
NWS Aberdeen, SD issued this flash flood warning at Sep 3, 1999, 2:44 PM CDT for Sully County, South Dakota. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 3, 1999, 2:44 PM CDT (19:44 UTC)
- Expired
- Sep 3, 1999, 8:50 PM CDT
- In force
- 6 hr
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
County Sully County, SD
The radar
The Aberdeen radar (KABR), 158 km from the middle of the area, began a volume at 19:44 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 12:00Z, 7.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 695 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- -28 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 flash flood 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 flash flood warning went out at Sep 3, 10:25 AM CDT, 4 hours 19 minutes earlier.
Area forecast discussion, Sep 3, 10:25 AM CDT, 4 hours 19 minutes before
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Special weather statement, Sep 3, 11:50 AM CDT, 2 hours 54 minutes before
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</html>Special weather statement, Sep 3, 11:50 AM CDT, 2 hours 54 minutes before
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<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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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 |
|---|---|---|---|---|
| Sep 2, 8:40 PM CDT | Severe Thunderstorm Warning | ABR | Faulk | 65 min |
| Sep 2, 10:16 PM CDT | Flash Flood Warning | ABR | Potter, Sully | 6 hr |
| Sep 2, 10:16 PM CDT | Flash Flood Warning | ABR | Faulk | 6 hr |
| Sep 2, 11:01 PM CDT | Flash Flood Warning | ABR | Hughes, Jones, Stanley | 5 hr |
| Sep 2, 11:47 PM CDT | Flash Flood Warning | ABR | Brown, Edmunds | 5 hr |
| Sep 3, 1:09 AM CDT | Flash Flood Warning | ABR | Hyde | 3 hr |
| Sep 3, 4:01 AM CDT | Flash Flood Warning | ABR | Hughes, Jones, Stanley, Sully | 8 hr |
| Sep 3, 4:01 AM CDT | Flash Flood Warning | ABR | Brown, Edmunds, Faulk, Potter | 8 hr |
| Sep 3, 4:01 AM CDT | Flash Flood Warning | ABR | Hyde | 8 hr |
| Sep 3, 11:52 AM CDT | Flash Flood Warning | ABR | Sully | 3 hr |
| Sep 3, 6:23 PM CDT | Flash Flood Warning | ABR | Deuel | 6 hr |
Nearby
Flash Flood Warnings in South Dakota, 1999Every flash flood warning in 1999
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.