Alert archive / South Dakota / Wind Advisories in 2011

Wind Advisory 10, NWS Rapid City, SD

April 21, 201114 counties in South Dakota

NWS Rapid City, SD issued this wind advisory at Apr 21, 2011, 2:48 PM MDT for 14 counties in South Dakota. It took effect at Apr 22, 2011, 9:00 AM MDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Apr 21, 2011, 2:48 PM MDT (20:48 UTC)
In effect from: Apr 22, 2011, 9:00 AM MDT
Expired: Apr 23, 2011, 12:00 AM MDT
In force: 15 hr
Issued by: NWS Rapid City, SD

Counties Bennett County, SD, Custer County, SD, Fall River County, SD, Haakon County, SD, Harding County, SD, Jackson 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), 62 km from the middle of the area, began a volume at 20:50 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.

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 Apr 21, 2:30 PM MDT, 18 minutes earlier.

Area forecast discussion, Apr 21, 2:30 PM MDT, 18 minutes before

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Hazardous weather outlook, Apr 21, 4:47 AM MDT, 10 hours 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
447 AM MDT THU APR 21 2011

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-221300-
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-
447 AM MDT (547 AM CDT) THU APR 21 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...TODAY AND TONIGHT

STRONG SOUTHERLY WINDS ARE EXPECTED TODAY ACROSS CENTRAL SOUTH
DAKOTA AND PORTIONS OF THE SOUTH DAKOTA PLAINS. WINDS OF 25 TO 35
MPG WITH GUSTS TO 45 MPH WILL DEVELOP THIS MORNING AND CONTINUE
UNTIL THE EARLY EVENING.

ISOLATED THUNDERSTORMS WILL BE POSSIBLE ACROSS NORTHEAST WYOMING AND
FAR WESTERN SOUTH DAKOTA THIS AFTERNOON AND EVENING. WIDESPREAD
SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A STORM SYSTEM WILL BRING MORE PRECIPITATION TO THE AREA FRIDAY.
THE STORM WILL ALSO BRING STRONG NORTHWEST WINDS TO THE AREA. WINDS
OF 30 TO 40 MPH WILL BE POSSIBLE ACROSS WESTERN SOUTH DAKOTA AND
NORTHEAST WYOMING.

.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
Apr 21, 4:03 AM MDT	Wind Advisory	UNR	Bennett, Haakon, Jackson, Meade, Mellette, Oglala Lakota and 5 more	10 hr
Apr 21, 2:48 PM MDT	High Wind Watch	UNR	Butte, Custer, Lawrence, Meade, Pennington	13 hr
Apr 21, 2:53 PM MDT	Winter Storm Watch	UNR	Lawrence, Meade, Pennington	13 hr

Nearby

Wind Advisories in South Dakota, 2011 Every 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; radar from the NEXRAD Level II archive.