Attention!!! .NWS damage survey for June 30 2014 tornado event... ...Kankakee County and Northwest Indiana survey information... *updated to include survey summaries for tornado northeast of Grant Park and two Northwest Indiana tornadoes.* .Tornadoes # 1 and 2 northwest of Grant Park Illinois... Rating: EF-1 estimated peak wind: 100-110 mph path length /statute/: 4.5 miles path width /maximum/: approximately 200 yards in each tornado within an approximate one mile wide swath about one mile apart fatalities: none injuries: none Start date: June 30 2014 start time: 1025 PM CDT start location: 3.4 miles east-northeast of Manteno start lat/lon: 41.2507/-87.8340 End date: June 30 2014 end time: 1028 PM CDT end location: 3.0 miles northwest of Grant Park end lat/lon: 41.2409/-87.6445 Survey summary: Two separate tornadoes have been confirmed within an approximate one mile wide north-south path from about 3 miles east northeast of Manteno to 3 miles northwest of Grant Park. Similar damage indicators were found in both tornadoes supportive of maximum EF-1 damage. This included multiple large Hardwood and softwood trees...many of them healthy...either snapped at the trunk or uprooted in convergent paths. Furthermore...three separate farmsteads sustained heavy damage to barns/outbuildings. Additional observed damage included snapped wood power poles or broken wood cross members...as well as defined narrow paths in corn fields. There were two barns with complete loss of roof structure and only some walls remaining. The metal roofing material at one location was deposited 300 yards downstream in a narrow path while one piece of debris was deposited 50 yards to the left of the main debris field. A 2x6 wood board snapped from the roof was tossed into the field and speared at least one foot into the ground. Another older barn was completely destroyed at a farm near E 1100n Road. A well built shed at the same location that was anchored by cement pilings was blown off The Blocks and destroyed and the pilings were also tossed up to 40 ft. The residence at this Farmstead suffered a small crack in the foundation. A 4000 lb trailer was partially lifted and moved 40 to 50 feet at a farm along N 10000e Rd. To the south of the swath of tornadic wind damage...there were multiple instances of straight line wind damage supportive of speeds of 70 to 100 mph...including snapped or uprooted hardwoods and softwoods. .Tornado # 3 northeast of Grant Park Illinois... Rating: EF-1 estimated peak wind: 105-110 mph path length /statute/: 3.4 miles path width /maximum/: 200 yards fatalities: none injuries: none Start date: June 30 2014 start time: 1032 PM CDT start location: 4.3 miles northeast of Grant Park start lat/lon: 41.2651/-87.5685 End date: June 30 2014 end time: 1037 PM CDT end location: 4.8 miles west-southwest of Lowell in end lat/lon: 41.2841/-87.5080 Survey summary: The tornado touched down near a church on County Rd 13...snapping Hardwood and softwood trees. A large limb smashed through the stained glass windows of the church and the force of this caused damage to the window frame inside the building. In addition...large tree branch impaled itself into the church. A door inside the church was blown open and ripped off. There was some minor structural integrity damage noted inside the church. The tornado then continued to N 16750e Road...where the most significant damage on a Farmstead included large hardwoods snapped...windows in the residence blown in and the complete destruction of three story tall barn with dimensions of 88x60. Furthermore..a large branch was impaled into the front of the residence. The female homeowner reported the common freight train sound of a tornado and experienced ear popping as the tornado passed. As the tornado then moved along E 10500n Road...it caused significant damage to an under construction but sealed single family residence. A section of the roof was removed...which caused a crack in the frame of the house and a large wall section collapsed outward. Consistent snapping or uprooting of trees was noted in a convergent manner as the tornado path continued into Lake County before ending west-southwest of Lowell. All of the most intense damage with this tornado was consistent with that of a higher end EF-1 tornado. .Tornado # 4 southeast of Lowell Indiana... Rating: EF-1 estimated peak wind: 105-110 mph path length /statute/: 2.4 miles path width /maximum/: 500 yards fatalities: none injuries: none Start date: June 30 2014 start time: 1046 PM CDT start location: 4.2 miles southeast of Lowell in start lat/lon: 41.2683/-87.3452 End date: June 30 2014 end time: 1048 PM CDT end location: 6.1 miles east-southeast of Lowell in end lat/lon: 41.2818/-87.3024 Survey summary: The tornado likely began in a field west of Harrison street and tracked east-northeast to near Interstate 65. The most significant damage noted included two snapped wooden power poles and substantially damaged grain bins on a farm east of Harrison street that could not be accessed due to downed power lines. At a Farmstead near the intersection of Harrison street and W 191st Avenue...a wooden barn was completely destroyed...along with several large hardwoods and softwoods snapped at the trunk. The damage was consistent with a higher end EF-1 tornado. South of the tornado path...there was a wide swath of significant straight line wind damage. This included the snapping of seven or eight additional wooden power poles along Harrison street...snapped trees and an at least a one mile wide swath of completely flattened corn crop. The Straight line wind damage was some of the most noteworthy on the survey and was consistent with wind speeds of 100-110 mph. .Tornado # 5 in and near de motte Indiana... Rating: EF-1 estimated peak wind: 100-105 mph path length /statute/: 8.0 miles path width /maximum/: 200 yards fatalities: none injuries: none Start date: June 30 2014 start time: 1049 PM CDT start location: 3.3 miles west of de motte in start lat/lon: 41.1909/-87.2613 End date: June 30 2014 end time: 1056 PM CDT end location: 4.9 miles northeast of de motte in end lat/lon: 41.2240/-87.1138 Survey summary: A 100-200 yard swath of consistent tree damage...with numerous snapped trees...began east-southeast of de motte between N CR 1150 W and N CR 1100 W just north of W CR 1200 N. The damage continued east-northeast just to the east and then through the center of de motte north of 9th street. Just east of de motte along orchid street...a barn was completely destroyed and double wide manufactured home experienced some structural and/or roof damage. Further northeast along W CR 1450 N near the end of the damage path...there were snapped trees...wood power poles leaning and damage to two farmsteads. On one...the doors collapsed in a pole barn. In another pole barn...the walls collapsed after the roof was blown off. The damage in this tornado path was consistent with maximum speeds of 100-105 mph. It cannot be conclusively ruled out that more than one tornado touched down along the 8 mile long damage path. Acknowledgments: The National Weather Service Chicago would like to thank the Kankakee County Ema...Grant Park fire protection district...Jasper County Ema...de motte Police Department...trained spotters...and the residents of impacted locations for their assistance with this survey. Local Radar Click to Enlarge Severe Overlay Nearby Radar Stations Chicago (LOT) Cities Affected Cedar Lake Crown Point Dyer East Chicago Gary Griffith Hammond Highland Hobart Lake Station Leroy Lowell Merrillville Munster New Chicago Saint John Schererville Schneider Shelby Whiting Forecasts for Indiana
Posted on: Thu, 03 Jul 2014 03:02:32 +0000
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