Alert archive / South Dakota / Wind Advisories in 2007

Wind Advisory 19, NWS Rapid City, SD

May 14, 20079 counties in South Dakota

NWS Rapid City, SD issued this wind advisory at May 14, 2007, 4:10 AM MDT for 9 counties in South Dakota. It took effect at May 14, 2007, 6:00 AM MDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: May 14, 2007, 4:10 AM MDT (10:10 UTC)
In effect from: May 14, 2007, 6:00 AM MDT
Expired: May 14, 2007, 6:00 PM MDT
In force: 12 hr
Issued by: NWS Rapid City, SD

Counties Butte County, SD, Custer County, SD, Haakon County, SD, Harding County, SD, Lawrence County, SD, Meade County, SD, Pennington County, SD, Perkins County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 59 km from the middle of the area, began a volume at 10:09 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 00:00Z, 10.2 hours before the alert went out and 288 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1399 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 1726 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 14, 3:30 AM MDT, 40 minutes earlier.

Area forecast discussion, May 14, 3:30 AM MDT, 40 minutes before

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Hazardous weather outlook, May 13, 10:20 AM MDT, 17 hours 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
1020 AM MDT SUN MAY 13 2007

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-141400-
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-
1020 AM MDT (1120 AM CDT) SUN MAY 13 2007

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

.DAY ONE...TODAY AND TONIGHT

VERY WARM TEMPERATURES...ALONG WITH A FRONTAL BOUNDARY OVER
NORTHEASTERN WYOMING AND NORTHWESTERN SOUTH DAKOTA...WILL HELP TO
DESTABILIZE THE ATMOSPHERE TODAY. SCATTERED THUNDERSTORMS ARE
EXPECTED THIS AFTERNOON AND EVENING...WITH SOME OF THE THUNDERSTORMS
BECOMING SEVERE OVER NORTHEAST WYOMING AND WESTERN SOUTH DAKOTA.

FOR AREAS SOUTH OF INTERSTATE 90...A FEW THUNDERSTORMS MAY PRODUCE
HAIL...BUT THE MAIN SEVERE THREAT WILL BE WIND GUSTS TO 60 MPH. FOR
AREAS ALONG AND NORTH OF INTERSTATE 90...THE MAIN THREAT WILL BE
LARGE HAIL AND DAMAGING WIND GUSTS.

DRY LIGHTNING IS ALSO POSSIBLE ACROSS THE BLACK HILLS THIS AFTERNOON
AND EVENING. WITH CRITICALLY DRY FUELS...A RED FLAG WARNING HAS BEEN
ISSUED FOR THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

A COLD FRONT PASSING THROUGH WILL LEAD TO WINDY CONDITIONS ON MONDAY
WITH A CHANCE OF SHOWERS AND THUNDERSTORMS MONDAY AND MONDAY NIGHT.
SEVERE STORMS ARE NOT EXPECTED. THERE WILL BE ANOTHER CHANCE OF
SHOWERS AND THUNDERSTORMS ON FRIDAY AND SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY...ESPECIALLY NEAR THE BLACK
HILLS...AND OVER NORTHEASTERN WYOMING AND NORTHWESTERN SOUTH DAKOTA.

In the hours before

Local storm report, May 13, 10:58 PM MDT, 5 hours 12 minutes before

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Local storm report, May 13, 11:58 PM MDT, 4 hours 12 minutes before

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Local storm report, May 14, 12:15 AM MDT, 3 hours 55 minutes before

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The office that day

Everything else NWS Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 6:28 PM MDT	Severe Thunderstorm Warning	UNR		62 min
May 13, 6:58 PM MDT	Severe Thunderstorm Warning	UNR	Pennington	62 min
May 13, 8:37 PM MDT	Severe Thunderstorm Warning	UNR	Ziebach	53 min
May 13, 9:54 PM MDT	Severe Thunderstorm Warning	UNR	Harding	66 min
May 13, 10:40 PM MDT	Severe Thunderstorm Warning	UNR	Butte	65 min
May 13, 10:57 PM MDT	Severe Thunderstorm Warning	UNR	Harding, Perkins	78 min
May 13, 9:16 PM MDT	Severe Thunderstorm Warning	UNR	Campbell	59 min
May 13, 9:42 PM MDT	Severe Thunderstorm Warning	UNR	Crook	63 min

Nearby

Wind Advisories in South Dakota, 2007 Every wind advisory 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.