National Weather Service damage survey for the June 17th 2014 tornado in Carter County... ... Overview... A supercell thunderstorm produced a long-lived tornado across parts of east central Carter County Tuesday afternoon... June 17th... 2014. Eye-witness reports suggest the tornado was on the ground for approximately one hour. ... Tornado damage rating... Rating: EF-3 estimated peak wind: 135-165 mph path length: 10 miles path width /maximum/: 880 yards... which is 1/2 mile wide. Fatalities: 0 injuries: 0 Start date: June 17th 2014 start time: 227 PM MDT /preliminary/ start location: 10 miles west-northwest of Capitol... Montana. /Preliminary/ End date: June 17th 2014 end time: approximately 330 PM MDT /preliminary/ end location: 16 miles north-northwest of Capitol... Montana /preliminary/ ... Historical context... This was the strongest tornado recorded in the Billings National Weather Service area of responsibility /called a County Warning Area/. This County Warning Area covers 16 counties across south central and southeast Montana and north central Wyoming. Prior to this event... the strongest tornadoes recorded in this area were rated as F2 or EF2. The last tornado rated as an EF2 in the Billings National Weather Service County Warning Area took place on July 2nd... 2010... about 15 miles northeast of Wilsall in Park County in the foothills of the Crazy Mountains. Only three other F3/EF3 tornadoes have been recorded in Montana since 1950. No tornadoes stronger than an F3/EF3 have occurred. Note that the Enhanced Fujita scale is a damage scale... so only tornadoes that hit something and cause damage receive ratings higher than EF0. ... Damage survey summary... A National Weather Service meteorologist surveyed the affected area of Carter County in cooperation with emergency management officials from the County. Personnel at the Forest service out of Camp Crook... South Dakota also provided invaluable information. The survey found that a Mobile home was destroyed... and its frame was twisted and thrown over a mile away. A small and old a-frame School House was also destroyed and its debris was blown 100 yards away... leaving behind only the basement. Six vehicles were picked up and tossed 100 to 200 yards away. Approximately 20 power poles were snapped off and one was even pulled out of the ground. In addition... 20 Hay bales weighing 3/4 of a ton each in the damage path are nowhere to be found. A swath of trees on the north end of the track into the Custer National Forest was also flattened by the tornado. There were no injuries or deaths reported... but two horses were killed... and some cattle may have been injured. Ef scale: the Enhanced Fujita scale classifies tornadoes into the following categories... based on the damage they cause: EF0... weak... ... 65 to 85 mph EF1... weak... ... 86 to 110 mph EF2... strong... .111 to 135 mph EF3... strong... .136 to 165 mph * this tornado * EF4... violent... 166 to 200 mph EF5... violent... >200 mph Note: the information in this statement is preliminary and subject to change pending final review of the event and publication in NWS storm data. https://nwschat.weather.gov/p.php?pid=201406182113-KBYZ-NOUS45-PNSBYZ
Posted on: Wed, 18 Jun 2014 21:18:39 +0000
Trending Topics
Recently Viewed Topics
© 2015