Tornado Index # 19830502.26.8

 
 
 

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Disclaimer |?|

Note: This approximate tornado path has been generated from data provided by the NCDC.

The Tornado History Project generates approximate paths through separate historical archives provided by the Storm Prediction Center (SPC) and the National Climatic Data Center (NCDC). Paths generated from the NCDC data are typically more detailed, but neither archive gives exact path information. There are several reasons that paths may be inaccurate:

  • Tornado touchdown and liftoff coordinates were recorded with only 2 digits of decimal precision (i.e. [33.72, -86.15] vs [33.71689, -86.15463]). As a consequence, the observed points on the map may be slightly off from actual. Note that beginning in 2009, up to 4 digits of decimal precision are given.
  • Coordinates have not historically been calculated via GPS (Global Positioning System). Thus, tornado touchdown and liftoff coordinates should be considered as estimates only.
  • Tornadoes may not have been in contact with the ground for the entire path as depicted on the map. Storm damage in any location depicted under the "path" should not be inferred.
  • Although paths are drawn as straight lines between any two sets of coordinates, the tornado may have "zigzagged" in some way.
  • Although paths are drawn as uniform thin lines on the map, it is likely that the tornado changed size over its lifetime. Damage in any location depicted under (or not under) the "path" should not be inferred.

Even with the above in mind, the data is the best available. If you see a path that is depicted incorrectly, please post a comment in the tornado forum indicating why you belive the path to be incorrect.

Paths generated from NCDC data are typically more detailed due to the way coordinates are listed in each archive:

  • SPC database - A maximum of 2 coordinates (touchdown and liftoff) is given for each tornado, or each state segment of a tornado if it is a multi-state tornado. Thus the vast majority of paths are depicted as simple straight lines.
  • NCDC database - Some tornadoes have mutliple sets of coordinates within any state, generally corresponding to entry and exit points by county. Thus, since more coordinates have been used to draw the path, the depicted path should be more accurate. Having said that, most tornadoes do not have additional path data in the NCDC archive. When they do, paths are drawn from the NCDC data.

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Statistics   Definitions |?|

The following statistics and definitions are derived from the Storm Prediction Center (SPC) historical tornado archive. The Tornado History Project can not guarantee the accuracy of the underlying data within the SPC historical tornado archive. However, the data as presented here is guaranteed to match the SPC data, except where noted.

Some definitions will not be given since they are obvious (i.e. "Date", "Time", etc...)
Special Note: This site uses a unique index number to identify each tornado. This index number is not a part of the official historical tornado archive.

E (Error) (tornado search table only) - A yellow box indicates that the tornado record contains a suspected error. A red box indicates that the tornado record contains an error and has been modified from the official source. Hover over the box for the error text.
Map/Forum (tornado search table only) - Clickable icons for further content related to a tornado.
State - The state or states affected by a tornado.
Fujita - The Fujita scale is an attempt to classify damage from a tornado. F0 being the least damaging, F5 the most. For 2007 and beyond, the Enhanced Fujita (EF) is given.
Fat. - The number of fatalities attributed to the tornado.
Inj. - The number of injuries attributed to the tornado.
Width - Width in yards. It is unclear if this indicates a maximum width or mean width.
Length - Length of tornado path in miles. Note the entire track length is not necessarily all on the ground (some tornadoes "hop and skip".)
Damage - Prior to 1996, this is a range by dollar amount. For 1996 and later, actual damage estimates are in millions.
Crop Loss - Added in 2007. Given in millions of dollars.
Lat/Lon - Contains two sets of coordinates:

  • Touchdown Latitude/Longitude - For single state tornadoes, and the overall record for multi-state tornadoes, the approximate touchdown location in decimal degrees. For the state specific records of multi-state tornadoes, entry point into the state in decimal degrees.
  • Liftoff Latitude/Longitude - For single state tornadoes, and the overall record for multi-state tornadoes, the approximate liftoff location in decimal degrees. For the state specific records of multi-state tornadoes, the exit or lift-off point from the state in decimal degrees.

St. #. - The state tornado number assigned to the tornado for that specific state for that specific year. Generally, state tornado numbers were assigned in the order the tornado occurred, but that is not always the case.
SPC # - The tornado number as assigned by the SPC. Tornado numbers are not unique and reset each year. Generally, tornado numbers were assigned in the order the tornado occurred, but that is not always the case.

Tornado Summary

Date (y/m/d)TimeFujitaFatalitiesInjuriesWidthLengthDamageCrop LossTouchdown Lat/LonLiftoff Lat/LonSPC #State #
1983-05-0210:05:00 330320023$5M-$50M-42.45 / -82.9542.62 / -82.52224
Affected StatesAffected Counties
Michigan Macomb, St. Clair
User Comments   (2)      
General Comment
2017-09-14 07:02:56
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PShiells
Posts:2
Rank: F0

The National Weather Service (NWS) describes this tornado as having touched down at the intersection of David and Ash streets in East Detroit (now Eastpointe). I mention this because the path for this tornado shown here has it crossing David about seven blocks south of Ash.


Again, NWS has it then moving east-northeast, from David/Ash, to Nine Mile Road and I-94, doing damage along the way. NWS lists that it then took the roof off of the hotel at Nine Mile Road and Interstate 94. That hotel is actually a few blocks to the north of where the path here shows.


Finally, NWS has it heading more northeastward from Nine Mile and I-94. Ultimately, they describe it destroying property from along Lakeland Street in Saint Clair Shores to the lakeshore at Bayview Drive. That's a path, in Macomb County, which ends up 15 to 18 blocks north of its path through Macomb County shown here.


So, there is a slight descrepancy in the actual location of this storm. I appreciate that you list the official coordinates even if they are somewhat off.


For more details on this tornado, follow this link to NWS, and read the description at the bottom of the page: http://www.weather.gov/dtx/torstatsmac

 

Edited on 2017-09-14 07:10:19 by PShiells

General Comment
2017-09-14 07:27:14
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PShiells
Posts:2
Rank: F0

The Macomb Daily news, in 2012, agreed that this tornado injured three. However, their damage figure is different: http://www.macombdaily.com/article/MD/20120316/news/303169959


The Detroit Free Press newspaper, in 1984 agreed, more closely, with the damage figures given here for this tornado, listing damages above five-million dollars: https://www.newspapers.com/newspage/99111817/


 


 

 

Edited on 2017-09-14 07:28:13 by PShiells

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