Alert archive / South Dakota / Flash Flood Warnings in 2015
Flash Flood Warning 7, NWS Rapid City, SD
NWS Rapid City, SD issued this flash flood warning at Jun 6, 2015, 12:31 PM MDT for Pennington County, South Dakota. It was in force for 3 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 6, 2015, 12:31 PM MDT (18:31 UTC)
- Expired
- Jun 6, 2015, 3:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Rapid City, SD
- Area
- Storm-based polygon
- Flood severity
- None
County Pennington County, SD
The radar
The Rapid City radar (KUDX), 13 km from the middle of the area, began a volume at 18:31 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 (KRAP), launched 12:00Z, 6.5 hours before the alert went out and 9 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
- 65 J/kg
- Mixed-layer CIN
- -190 J/kg
- Mixed-layer LCL
- 1039 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 123 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 6, 3:21 AM MDT, 9 hours 10 minutes earlier.
Area forecast discussion, Jun 6, 3:21 AM MDT, 9 hours 10 minutes before
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</html>Hazardous weather outlook, Jun 6, 3:37 AM MDT, 8 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 337 AM MDT SAT JUN 6 2015 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-070945- HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH- NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY- SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS- CUSTER CO PLAINS-PENNINGTON CO PLAINS-HAAKON-FALL RIVER-SHANNON- JACKSON-BENNETT-MELLETTE-TODD-TRIPP-STURGIS/PIEDMONT FOOT HILLS- SOUTHERN MEADE CO PLAINS-HERMOSA FOOT HILLS-NORTHERN CAMPBELL- SOUTHERN CAMPBELL-WESTERN CROOK-WYOMING BLACK HILLS-WESTON- NORTHEASTERN CROOK- 337 AM MDT SAT JUN 6 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED AGAIN TODAY...MAINLY IN THE AFTERNOON AND EVENING HOURS. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF SOUTH CENTRAL SOUTH DAKOTA THIS AFTERNOON AND EVENING. THESE STORM WILL BE CAPABLE OF PRODUCING LARGE HAIL AND STRONG WIND GUSTS. HIGH STREAM FLOWS WITH SOME MINOR FLOODING WILL CONTINUE ON SOME CREEKS AND STREAMS IN THE BLACK HILLS AND THE ADJACENT PLAINS...AS WELL AS PORTIONS OF NORTHEASTERN WYOMING. ADDITIONAL RAINFALL TODAY ALONG WITH SATURATED SOILS COULD AGGRAVATE FLOODING CONDITIONS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A SLIGHT CHANCE OF THUNDERSTORMS SUNDAY ACROSS NORTHEAST WYOMING THROUGH SOUTHWEST SOUTH DAKOTA. SEVERE WEATHER IS NOT EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY. && STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES... OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY
In the hours before
Special weather statement, Jun 6, 11:57 AM MDT, 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RAPID CITY SD
1157 AM MDT SAT JUN 6 2015
SDZ028-061845-
CENTRAL BLACK HILLS SD-
1157 AM MDT SAT JUN 6 2015
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN PENNINGTON COUNTY
UNTIL 1245 PM MDT...
AT 1154 AM MDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
OVER HILL CITY...MOVING NORTHEAST AT 10 MPH.
HALF INCH HAIL AND HEAVY RAIN CAN BE EXPECTED WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
HILL CITY...SHERIDAN LAKE...HARNEY PEAK AND PACTOLA RESERVOIR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF ON OR NEAR SHERIDAN LAKE OR PACTOLA RESERVOIR...GET OUT OF THE
WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN
STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO
SAFE SHELTER NOW. DO NOT BE CAUGHT ON THE WATER IN A THUNDERSTORM.
&&
LAT...LON 4394 10368 4407 10349 4393 10335 4385 10360
4386 10361
TIME...MOT...LOC 1754Z 227DEG 10KT 4394 10356
TRIMARCHILocal storm report, Jun 6, 12:26 PM MDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
1226 PM MDT SAT JUN 06 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1222 PM HAIL HILL CITY 43.93N 103.57W
06/06/2015 E1.25 INCH PENNINGTON SD STORM CHASER
&&
METhe office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 8:41 PM MDT | Special Weather Statement | UNR | Fall River | 49 min |
| Jun 5, 8:52 PM MDT | Special Weather Statement | UNR | Fall River | 23 min |
| Jun 5, 9:38 PM MDT | Special Weather Statement | UNR | Fall River | 37 min |
| Jun 5, 10:45 PM MDT | Special Weather Statement | UNR | Fall River | 45 min |
| Jun 6, 11:57 AM MDT | Special Weather Statement | UNR | Custer | 48 min |
| Jun 6, 1:26 PM MDT | Areal Flood Warning | UNR | Jackson, Pennington | 3 days |
| Jun 6, 1:31 PM MDT | Areal Flood Warning | UNR | Custer, Pennington | 7 days |
| Jun 6, 2:09 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 51 min |
| Jun 6, 4:16 PM MDT | Special Weather Statement | UNR | Todd | 59 min |
| Jun 6, 4:24 PM MDT | Special Weather Statement | UNR | Tripp | 51 min |
| Jun 6, 4:53 PM MDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 52 min |
| Jun 6, 5:06 PM MDT | Severe Thunderstorm Warning | UNR | Todd, Tripp | 39 min |
| Jun 6, 5:51 PM MDT | Special Weather Statement | UNR | Tripp | 54 min |
| Jun 6, 4:46 PM MDT | Special Weather Statement | UNR | Weston | 44 min |
| Jun 6, 5:00 PM MDT | Severe Thunderstorm Warning | UNR | Weston | 60 min |
Nearby
Flash Flood Warnings in South Dakota, 2015Every flash flood 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.