Strong southwesterly winds developed during the evening over parts of the Black Hills and accelerated as they moved down the northern and eastern slopes of the Black Hills. Wind gusts were measured at 87 mph west of Spearfish and 95 mph southwest of Hermosa.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS UNR wrote it up.
Strong southwesterly winds developed during the evening over parts of the Black Hills and accelerated as they moved down the northern and eastern slopes of the Black Hills. Wind gusts were measured at 87 mph west of Spearfish and 95 mph southwest of Hermosa. Several mobile homes had their roofs blown off; power lines, light poles, and street signs were blown down or bent; and cargo trailers were swept off roads.
The local office's own words before the first event, 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 the first event at Nov 12, 2:20 PM MST, 1 hour 40 minutes earlier.
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</html>HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RAPID CITY SD 1053 AM MST MON NOV 12 2007 SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058- 071-131400- 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- 1053 AM MST (1153 AM CST) MON NOV 12 2007 ...WIND ADVISORY TONIGHT AND TUESDAY FOR THE NORTHERN FOOTHILLS... ...HIGH WIND WARNING TUESDAY FOR BUTTE AND HARDING COUNTIES... ...WIND ADVISORY TUESDAY FOR THE REST OF THE WESTERN SOUTH DAKOTA PLAINS ALONG AND NORTH OF I-90... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND NORTHEASTERN WYOMING. .DAY ONE...TODAY AND TONIGHT STRONG SOUTHWEST WINDS WILL DEVELOP OVER NORTHEASTERN WYOMING AND THE BLACK HILLS INCLUDING THE NORTHERN FOOTHILLS THIS EVENING. WINDS ARE EXPECTED TO REACH SUSTAINED SPEEDS OF 25 TO 35 MPH WITH GUSTS TO 50 MPH. A WIND ADVISORY HAS BEEN ISSUED FOR THE NORTHERN FOOTHILLS. THE GRASSLAND FIRE DANGER WILL BE VERY HIGH ACROSS FAR WESTERN SOUTH DAKOTA TODAY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY A COLD FRONT WILL CROSS THE AREA TUESDAY WITH STRONG NORTHWEST WINDS DEVELOPING BEHIND THE FRONT. A HIGH WIND WARNING HAS BEEN ISSUED FOR HARDING AND BUTTE COUNTIES TOMORROW WHERE WINDS OF 35 TO 45 MPH WITH GUSTS TO 60 ARE EXPECTED. A WIND ADVISORY IS IN EFFECT FOR THE REST OF THE WESTERN SOUTH DAKOTA PLAINS NORTH OF INTERSTATE 90 AS WINDS INCREASE TO 25 TO 35 MPH WITH GUSTS TO 45 MPH. THE GRASSLAND FIRE DANGER WILL REACH THE VERY HIGH TO EXTREME CATEGORY ACROSS WESTERN SOUTH DAKOTA TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.
The national radar mosaic for the moment the first event began.
4 high wind. Local standard time, as filed.
Roofs were damaged on several mobile homes in a mobile home park.
Roofs were damaged in a mobile home park.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2007Every state in 2007This day in weather historyWarnings in South Dakota, November 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 64039, 64042, 64041, 64040.