Alert archive / South Dakota / Flash Flood Warnings in 2007
Flash Flood Warning 3, NWS Rapid City, SD
NWS Rapid City, SD issued this flash flood warning at Jun 12, 2007, 4:45 PM CDT for Todd 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 12, 2007, 4:45 PM CDT (21:45 UTC)
- Expired
- Jun 12, 2007, 10:45 PM CDT
- In force
- 6 hr
- Issued by
- NWS Rapid City, SD
- Area
- Whole counties
County Todd County, SD
The radar
The North Platte radar (KLNX), 138 km from the middle of the area, began a volume at 21:45 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
Rapid City, SD (KUNR), launched 12:00Z, 9.8 hours before the alert went out and 199 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
- 255 J/kg
- Mixed-layer CIN
- -282 J/kg
- Mixed-layer LCL
- 1438 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- -48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Rapid City, SD wrote its last area forecast discussion before this flash flood warning went out at Jun 12, 3:00 PM CDT, 1 hour 45 minutes earlier.
Area forecast discussion, Jun 12, 3:00 PM CDT, 1 hour 45 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 1100 AM MDT TUE JUN 12 2007 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-131300- BENNETT-BUTTE-CENTRAL BLACK HILLS-CUSTER CO PLAINS-FALL RIVER-HAAKON- HARDING-HERMOSA FOOT HILLS-JACKSON-MELLETTE-NORTHEASTERN CROOK- NORTHERN BLACK HILLS-NORTHERN CAMPBELL-NORTHERN FOOT HILLS- NORTHERN MEADE CO PLAINS-PENNINGTON CO PLAINS-PERKINS-RAPID CITY- SHANNON-SOUTHERN BLACK HILLS-SOUTHERN CAMPBELL-SOUTHERN FOOT HILLS- SOUTHERN MEADE CO PLAINS-STURGIS/PIEDMONT FOOT HILLS-TODD-TRIPP- WESTERN CROOK-WESTON-WYOMING BLACK HILLS-ZIEBACH- 1100 AM MDT (1200 PM CDT) TUE JUN 12 2007 ...FLASH FLOOD WATCH FOR CENTRAL SOUTH DAKOTA THROUGH LATE TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WITH HEAVY RAIN WILL MOVE ACROSS CENTRAL SOUTH DAKOTA THIS AFTERNOON AND TONIGHT...WHICH COULD CAUSE FLASH FLOODING. A WEAK COLD FRONT WILL MOVE SLOWLY ACROSS WESTERN SOUTH DAKOTA WHILE AN UPPER LEVEL TROUGH DRAWS MOISTURE INTO THE AREA. THERE IS ALSO A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS WESTERN SOUTH DAKOTA...EAST OF THE BLACK HILLS... WITH THE MAIN THREAT LARGE HAIL AND DAMAGING WIND GUSTS...ALTHOUGH AN ISOLATED TORNADO IS ALSO POSSIBLE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A SERIES OF WEAK UPPER LEVEL DISTURBANCES WILL BRING ANOTHER CHANCE OF THUNDERSTORMS ON SATURDAY AND SUNDAY. NO SEVERE WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY.
In the hours before
Local storm report, Jun 12, 2:45 PM CDT, 2 hours before
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</html>The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 7:53 PM CDT | Severe Thunderstorm Warning | UNR | Todd | 82 min |
| Jun 12, 1:09 PM CDT | Severe Thunderstorm Warning | UNR | Bennett | 51 min |
| Jun 12, 1:14 PM CDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 61 min |
| Jun 12, 2:27 PM CDT | Flash Flood Warning | UNR | Mellette | 6 hr |
Nearby
Flash Flood Warnings in South Dakota, 2007Every flash flood warning in 2007
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.