Alert archive / South Dakota / Wind Advisories in 2011
Wind Advisory 14, NWS Rapid City, SD
NWS Rapid City, SD issued this wind advisory at May 15, 2011, 2:17 PM MDT for 5 counties in South Dakota. It took effect at May 16, 2011, 9:00 AM MDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- May 15, 2011, 2:17 PM MDT (20:17 UTC)
- In effect from
- May 16, 2011, 9:00 AM MDT
- Expired
- May 16, 2011, 9:00 PM MDT
- In force
- 12 hr
- Issued by
- NWS Rapid City, SD
Counties Butte County, SD, Meade County, SD, Pennington County, SD, Perkins County, SD, Ziebach County, SD
The radar
The Rapid City radar (KUDX), 75 km from the middle of the area, began a volume at 20:15 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 8.3 hours before the alert went out and 267 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
- 1893 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 128 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 May 15, 9:34 AM MDT, 4 hours 43 minutes earlier.
Area forecast discussion, May 15, 9:34 AM MDT, 4 hours 43 minutes before
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</html>Hazardous weather outlook, May 15, 4:26 AM MDT, 9 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 426 AM MDT SUN MAY 15 2011 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-161300- 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- 426 AM MDT (526 AM CDT) SUN MAY 15 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT GUSTY SOUTHERLY WINDS ARE EXPECTED TO DEVELOP TONIGHT ACROSS NORTHEAST WYOMING...WITH GUSTS OVER 40 MPH POSSIBLE. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY GUSTY SOUTHERLY WINDS ARE EXPECTED TO SPREAD ACROSS WESTERN SOUTH DAKOTA ON MONDAY...WITH GUSTS OVER 40 MPH POSSIBLE. THERE IS A DAILY CHANCE OF THUNDERSTORMS BEGINNING TUESDAY AS A LARGE UPPER LEVEL STORM SYSTEM MOVES SLOWLY EASTWARD THROUGH THE WESTERN UNITED STATES. THERE IS THE POTENTIAL FOR SIGNIFICANT RAINFALL ACROSS THE REGION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.
The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 2:17 PM MDT | High Wind Watch | UNR | Harding | 13 hr |
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.