Alert archive / South Dakota / Wind Advisories in 2011
Wind Advisory 22, NWS Rapid City, SD
NWS Rapid City, SD issued this wind advisory at Oct 6, 2011, 2:18 PM MDT for 16 counties in South Dakota. It took effect at Oct 7, 2011, 8:00 AM MDT. It was in force for 11 hr.
The area
The counties it named.
The facts
- Issued
- Oct 6, 2011, 2:18 PM MDT (20:18 UTC)
- In effect from
- Oct 7, 2011, 8:00 AM MDT
- Expired
- Oct 7, 2011, 7:00 PM MDT
- In force
- 11 hr
- Issued by
- NWS Rapid City, SD
Counties Bennett County, SD, Butte County, SD, Custer County, SD, Fall River County, SD, Haakon County, SD, Harding County, SD, Jackson County, SD, Lawrence County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Todd County, SD, Tripp County, SD, Ziebach County, SD
The radar
The Rapid City radar (KUDX), 45 km from the middle of the area, began a volume at 20:18 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, 8.3 hours before the alert went out and 49 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
- 905 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind advisory 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 wind advisory went out at Oct 6, 1:57 PM MDT, 21 minutes earlier.
Area forecast discussion, Oct 6, 1:57 PM MDT, 21 minutes before
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</html>Hazardous weather outlook, Oct 6, 9:57 AM MDT, 4 hours 21 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 957 AM MDT THU OCT 6 2011 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-071300- 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- 957 AM MDT (1057 AM CDT) THU OCT 6 2011 ...HIGH WIND WARNING TODAY FOR SOUTH CENTRAL SOUTH DAKOTA... ...WIND ADVISORY TODAY FOR MUCH OF THE WESTERN SOUTH DAKOTA PLAINS... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT BREEZY CONDITIONS WILL CONTINUE ACROSS MUCH OF THE WESTERN SOUTH DAKOTA PLAINS TODAY. SOUTHERLY WINDS OF 20 TO 35 MPH WITH GUSTS UP TO 50 MPH ARE EXPECTED UNTIL EARLY THIS EVENING. STRONGER WINDS OF 35 TO 45 MPH WITH GUSTS TO 60 MPH ARE EXPECTED ACROSS SOUTH CENTRAL SOUTH DAKOTA. A VERY HIGH FIRE DANGER IS EXPECTED ACROSS CENTRAL SOUTH DAKOTA. SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE ACROSS THE AREA THIS AFTERNOON AND EVENING. SOME STORMS ACROSS WESTERN SOUTH DAKOTA AND THE BLACK HILLS AREA MAY BECOME SEVERE WITH DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY WINDY CONDITIONS ARE AGAIN EXPECTED FRIDAY ACROSS THE SOUTH DAKOTA PLAINS. SOUTHWEST WINDS MAY REACH 25 TO 35 MPH...WITH GUSTS UP TO 50 MPH. THESE WINDS WILL CREATE VERY HIGH TO EXTREME FIRE DANGER ACROSS MANY PARTS OF THE WESTERN SOUTH DAKOTA PLAINS FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TODAY. BUNKERS
In the hours before
Special weather statement, Oct 6, 2:10 PM MDT, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 210 PM MDT THU OCT 6 2011 SDZ027-029-074-062100- HERMOSA FOOT HILLS SD-SOUTHERN BLACK HILLS SD-SOUTHERN FOOT HILLS SD- 210 PM MDT THU OCT 6 2011 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN FALL RIVER AND CENTRAL CUSTER COUNTIES UNTIL 300 PM MDT... AT 209 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR DOWNTOWN HOT SPRINGS...MOVING NORTH AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... DOWNTOWN CUSTER... COLD BROOK RESERVOIR... BUFFALO GAP... WIND CAVE VISITORS CENTER... ARGYLE... PRINGLE... SANATOR... BLUE BELL... CUSTER PARK GAME LODGE... STOCKADE LAKE... CENTER LAKE... CRAZY HORSE MEMORIAL... TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. CARSTENS
Special weather statement, Oct 6, 2:12 PM MDT, 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RAPID CITY SD 212 PM MDT THU OCT 6 2011 SDZ030-074-062100- CUSTER CO PLAINS SD-HERMOSA FOOT HILLS SD- 212 PM MDT THU OCT 6 2011 ...SIGNIFICANT WEATHER ADVISORY FOR EASTERN CUSTER COUNTY UNTIL 300 PM MDT... AT 209 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES SOUTHEAST OF FAIRBURN...OR 23 MILES NORTHEAST OF DOWNTOWN HOT SPRINGS...MOVING NORTH AT 25 MPH. HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... FAIRBURN... HERMOSA... TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. CARSTENS
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 6, 3:45 AM MDT | High Wind Warning | UNR | Mellette, Todd, Tripp | 14 hr |
| Oct 6, 2:23 PM MDT | Severe Thunderstorm Warning | UNR | Custer | 52 min |
| Oct 6, 2:54 PM MDT | Severe Thunderstorm Warning | UNR | Custer | 51 min |
| Oct 6, 2:55 PM MDT | Red Flag Warning | UNR | 28 hr | |
| Oct 6, 3:18 PM MDT | Tornado Warning | UNR | Custer | 27 min |
| Oct 6, 3:23 PM MDT | Severe Thunderstorm Warning | UNR | Pennington | 52 min |
| Oct 6, 3:44 PM MDT | Severe Thunderstorm Warning | UNR | Meade | 61 min |
| Oct 6, 3:45 PM MDT | Severe Thunderstorm Warning | UNR | Custer | 30 min |
| Oct 6, 4:03 PM MDT | Severe Thunderstorm Warning | UNR | 57 min | |
| Oct 6, 4:13 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 41 min |
| Oct 6, 5:06 PM MDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette | 39 min |
| Oct 6, 5:19 PM MDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson | 37 min |
| Oct 6, 5:43 PM MDT | Severe Thunderstorm Warning | UNR | Bennett, Jackson, Mellette, Todd | 47 min |
| Oct 6, 5:49 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 56 min |
| Oct 6, 5:54 PM MDT | Severe Thunderstorm Warning | UNR | Meade, Perkins, Ziebach | 51 min |
Nearby
Wind Advisories in South Dakota, 2011Every wind advisory in 2011
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.