Alert archive / South Dakota / Flash Flood Warnings in 2013
Flash Flood Warning 3, NWS Aberdeen, SD
NWS Aberdeen, SD issued this flash flood warning at Jun 20, 2013, 8:43 AM CDT for Marshall County, Roberts 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
- Jun 20, 2013, 8:43 AM CDT (13:43 UTC)
- Expired
- Jun 20, 2013, 2:30 PM CDT
- In force
- 6 hr
- Issued by
- NWS Aberdeen, SD
- Area
- Storm-based polygon
- Flood severity
- None
Counties Marshall County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 93 km from the middle of the area, began a volume at 13:43 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, 1.7 hours before the alert went out and 125 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
- 563 J/kg
- Mixed-layer CIN
- -213 J/kg
- Mixed-layer LCL
- 943 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 325 m²/s²
- 0-3 km storm-relative helicity
- 326 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 14.1
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 Jun 20, 6:31 AM CDT, 2 hours 12 minutes earlier.
Area forecast discussion, Jun 20, 6:31 AM CDT, 2 hours 12 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ABERDEEN SD 412 AM CDT THU JUN 20 2013 MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-210915- TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL- ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK- CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES- LYMAN-BUFFALO- 412 AM CDT THU JUN 20 2013 /312 AM MDT THU JUN 20 2013/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL MINNESOTA...CENTRAL SOUTH DAKOTA...NORTH CENTRAL SOUTH DAKOTA AND NORTHEAST SOUTH DAKOTA. .DAY ONE...TODAY AND TONIGHT STRONG AND SEVERE STORMS ARE POSSIBLE THIS AFTERNOON AND TONIGHT AS A FRONTAL BOUNDARY MOVES ACROSS THE REGION. THE MAIN THREATS WILL BE LARGE HAIL AND STRONG WINDS...ALTHOUGH TORNADIC DEVELOPMENT CANNOT BE COMPLETELY RULED OUT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THE LOW PRESSURE SYSTEM INTENSIFIES AND MOVES NORTHWARD...PUSHING A WARM FRONT NORTH ALONG WITH IT. THIS FEATURE WILL BE OVER THE REGION DURING PEAK HEATING HOURS ON FRIDAY. RAPID SEVERE THUNDERSTORM DEVELOPMENT IS POSSIBLE FRIDAY AFTERNOON AND NIGHT...WITH ALL SEVERE THREATS POSSIBLE. THE LOW PRESSURE SYSTEM CONTINUES TO MOVE NORTHWARD...HOWEVER THE THREAT OF SEVERE STORMS CONTINUES THROUGH THE WEEKEND. BE PREPARED FOR RAPIDLY CHANGING CONDITIONS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT. SERR
In the hours before
Special weather statement, Jun 20, 7:10 AM CDT, 1 hour 33 minutes before
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</html>Local storm report, Jun 20, 7:37 AM CDT, 1 hour 6 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 |
|---|---|---|---|---|
| Jun 19, 11:27 PM CDT | Severe Thunderstorm Warning | ABR | Grant, Roberts | 63 min |
| Jun 20, 12:14 AM CDT | Flash Flood Warning | ABR | Grant, Roberts | 6 hr |
| Jun 20, 12:29 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 61 min |
| Jun 20, 6:02 AM CDT | Flash Flood Warning | ABR | Grant, Roberts | 6 hr |
| Jun 20, 6:06 AM CDT | Severe Thunderstorm Warning | ABR | Day | 39 min |
| Jun 20, 6:45 AM CDT | Severe Thunderstorm Warning | ABR | Clark, Codington, Day, Grant, Marshall, Roberts | 45 min |
| Jun 20, 9:20 AM CDT | River Flood Warning | ABR | Spink | 77 days |
| Jun 20, 11:00 AM CDT | Flash Flood Watch | ABR | Brown, Clark, Codington, Day, Deuel, Grant and 4 more | 68 hr |
| Jun 20, 6:17 PM CDT | Severe Thunderstorm Warning | ABR | Dewey | 58 min |
Nearby
Flash Flood Warnings in South Dakota, 2013Every flash flood warning in 2013
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.