Alert archive / South Dakota / Flash Flood Warnings in 1997
Flash Flood Warning 9, NWS Rapid City, SD
NWS Rapid City, SD issued this flash flood warning at Jul 11, 1997, 7:43 PM CDT for Edmunds County, South Dakota. It was in force for 8 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
- Jul 11, 1997, 7:43 PM CDT (00:43 UTC)
- Expired
- Jul 12, 1997, 3:40 AM CDT
- In force
- 8 hr
- Issued by
- NWS Rapid City, SD
- Area
- Whole counties
County Edmunds County, SD
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 0.7 hours before the alert went out and 189 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
- 3242 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1128 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -54 m²/s²
- 0-3 km storm-relative helicity
- -67 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.
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 2:36 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence | 44 min |
| Jul 12, 4:38 PM CDT | Severe Thunderstorm Warning | UNR | Butte, Lawrence | 32 min |
| Jul 12, 4:41 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 49 min |
| Jul 12, 4:48 PM CDT | Severe Thunderstorm Warning | UNR | Lawrence, Meade | 62 min |
| Jul 12, 5:23 PM CDT | Severe Thunderstorm Warning | UNR | Fall River | 62 min |
| Jul 12, 6:14 PM CDT | Severe Thunderstorm Warning | UNR | 61 min | |
| Jul 11, 7:48 PM CDT | Severe Thunderstorm Warning | UNR | Weston | 62 min |
| Jul 12, 3:25 PM CDT | Severe Thunderstorm Warning | UNR | Campbell | 65 min |
| Jul 12, 3:29 PM CDT | Severe Thunderstorm Warning | UNR | Weston | 61 min |
Nearby
Flash Flood Warnings in South Dakota, 1997Every flash flood warning in 1997
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.