Tornadoes in August, 1977

 
 
 
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6341977-08-0113:00:00 3 Virginia100300.5 Louisa$5K-$50K-37.92-78.07--

 

Tornado Map and Forum

6351977-08-0114:25:00 3 Florida000200.1 Brevard$500-$5000-28.7-80.83--

 

Tornado Map and Forum

6361977-08-0118:30:00 3 Mississippi100100.1 Hancock$500-$5000-30.22-89.48--

 

Tornado Map and Forum

6371977-08-0213:00:00 3 Georgia1011001 Henry$500-$5000-33.35-84.12--

 

Tornado Map and Forum

6381977-08-0216:30:00 3 Texas000300.5 Hansford--36.4-101.52--

 

Tornado Map and Forum

6391977-08-0217:30:00 3 Oklahoma200108 Dewey$50-$500-35.87-98.6535.78-98.55

 

Tornado Map and Forum

6401977-08-0312:30:00 3 Kentucky200302.3 Estill$5K-$50K-37.7-83.9237.7-83.87

 

Tornado Map and Forum

6411977-08-0323:35:00 3 Nebraska100100.1 Thayer$50K-$500K-40.07-97.67--

 

Tornado Map and Forum

6421977-08-0414:15:00 3 Wisconsin000100.1 Milwaukee--43.03-87.98--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6431977-08-0515:30:00 3 Michigan100703.3 Iosco$5K-$50K-44.28-83.844.28-83.72

 

Tornado Map and Forum

6441977-08-0515:35:00 3 Michigan1001700.1 Chippewa$5K-$50K-46.43-84.2746.43-84.23

 

Tornado Map and Forum

6451977-08-0519:40:00 3 Kansas000130.1 Hamilton<$50-38.05-101.7--

 

Tornado Map and Forum

6461977-08-0521:35:00 3 Kansas000130.1 Stevens<$50-37.28-101.27--

 

Tornado Map and Forum

6471977-08-0615:25:00 3 Illinois100607.8 Sangamon--39.53-89.7239.62-89.62

 

Tornado Map and Forum

6481977-08-0615:30:00 3 Illinois0003500.8 Sangamon--39.62-89.93--

 

Tornado Map and Forum

6491977-08-0615:30:00 3 Illinois100606.1 Sangamon--39.53-89.8339.6-89.75

 

Tornado Map and Forum

6501977-08-0615:35:00 3 Illinois000100.8 Sangamon--39.63-89.9--

 

Tornado Map and Forum

6511977-08-0615:35:00 3 Illinois000231.9 Sangamon--39.53-89.7--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6521977-08-0615:36:00 3 Illinois1003501.3 Sangamon--39.63-89.87--

 

Tornado Map and Forum

6531977-08-0615:36:00 3 Illinois2003502.3 Sangamon--39.62-89.8539.63-89.8

 

Tornado Map and Forum

6541977-08-0615:37:00 3 Illinois100501 Sangamon--39.53-89.67--

 

Tornado Map and Forum

6551977-08-0615:38:00 3 Illinois100336.2 Sangamon$5K-$50K-39.53-89.7539.58-89.65

 

Tornado Map and Forum

6561977-08-0615:45:00 3 Illinois3001004.1 Sangamon$500K-$5M-39.63-89.7239.68-89.67

 

Tornado Map and Forum

6571977-08-0615:45:00 3 Illinois100305.9 Sangamon--39.55-89.639.6-89.5

 

Tornado Map and Forum

6581977-08-0615:47:00 3 Illinois1001503.6 Sangamon--39.6-89.6339.63-89.57

 

Tornado Map and Forum

6591977-08-0615:50:00 3 Illinois000500.6 Sangamon--39.67-89.63--

 

Tornado Map and Forum

6601977-08-0615:51:00 3 Illinois000170.2 Sangamon--39.68-89.62--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6611977-08-0615:53:00 3 Illinois000100.2 Sangamon--39.63-89.58--

 

Tornado Map and Forum

6621977-08-0615:55:00 3 Illinois000171.1 Christian--39.63-89.52--

 

Tornado Map and Forum

6631977-08-0615:57:00 3 Illinois100502.2 Sangamon$50K-$500K-39.65-89.53--

 

Tornado Map and Forum

6641977-08-0616:00:00 3 Illinois100402.8 Christian--39.72-89.43--

 

Tornado Map and Forum

6651977-08-0616:10:00 3 Illinois100903.3 Sangamon--39.73-89.4839.75-89.42

 

Tornado Map and Forum

6661977-08-0621:00:00 3 Wisconsin101100.1 Chippewa$500-$5000-44.85-91.42--

 

Tornado Map and Forum

6671977-08-0715:00:00 3 Nebraska000100.1 Morrill--41.57-103.25--

 

Tornado Map and Forum

6681977-08-0716:10:00 3 Nebraska000100.1 Cheyenne--41.43-103--

 

Tornado Map and Forum

6691977-08-0806:30:00 3 Michigan100331.5 Osceola$500-$5000-44.15-85.15--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6701977-08-0815:00:00 3 Pennsylvania001100.1 Mercer--41.17-80.05--

 

Tornado Map and Forum

6711977-08-0818:00:00 3 Colorado100500.2 Pueblo--38.4-104.2--

 

Tornado Map and Forum

6721977-08-0916:55:00 3 Minnesota200705.6 Watonwan$50K-$500K-44.07-94.7744-94.68

 

Tornado Map and Forum

6731977-08-1008:00:00 3 New Jersey001100.1 Cumberland$5K-$50K-39.25-75--

 

Tornado Map and Forum

6741977-08-1013:27:00 3 Florida100131 Bradford$5K-$50K-30.03-82.18--

 

Tornado Map and Forum

6751977-08-1015:05:00 3 Colorado100601 El Paso--39.13-104.58--

 

Tornado Map and Forum

6761977-08-1016:30:00 3 Delaware100271 New Castle$500-$5000-39.8-75.68--

 

Tornado Map and Forum

6771977-08-1214:00:00 3 Virginia101230.1 Caroline$5K-$50K-38.18-77.28--

 

Tornado Map and Forum

6781977-08-1218:30:00 3 Tennessee000170.1 Hamilton$5K-$50K-35.03-85.27--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6791977-08-1313:15:00 3 Wisconsin000100.1 Dodge--43.4-88.7--

 

Tornado Map and Forum

6801977-08-1415:38:00 3 Colorado100601 Adams--39.78-104.33--

 

Tornado Map and Forum

6811977-08-1415:45:00 3 Colorado100601 Adams--39.78-104.33--

 

Tornado Map and Forum

6821977-08-1415:45:00 3 Colorado101601 Adams$50K-$500K-39.78-104.33--

 

Tornado Map and Forum

6831977-08-1420:30:00 3 Maine100670.3 Hancock$5K-$50K-44.3-68.67--

 

Tornado Map and Forum

6841977-08-1513:30:00 3 Mississippi000100.1 Tate--34.68-90--

 

Tornado Map and Forum

6851977-08-1516:00:00 3 Iowa000200.2 Monona--41.97-95.77--

 

Tornado Map and Forum

6861977-08-1518:45:00 3 Iowa000600.2 Polk--41.73-93.6--

 

Tornado Map and Forum

6881977-08-1520:30:00 3 Nebraska100100.1 Lancaster$5K-$50K-40.8-96.67--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6871977-08-1520:30:00 3 Iowa100200.2 Iowa$5K-$50K-41.8-92.07--

 

Tornado Map and Forum

6891977-08-1523:10:00 3 Iowa100602 Johnson$50K-$500K-41.58-91.65--

 

Tornado Map and Forum

6901977-08-1523:15:00 3 Iowa100600.5 Johnson$50K-$500K-41.67-91.6--

 

Tornado Map and Forum

6911977-08-1600:01:00 3 Iowa101100.5 Muscatine$50K-$500K-41.58-91.02--

 

Tornado Map and Forum

6921977-08-1618:20:00 3 Missouri1002000.5 Christian$500-$5000-37-93.52--

 

Tornado Map and Forum

6931977-08-1711:20:00 3 North Carolina1005011.5 Henderson, Polk$5K-$50K-35.38-82.3735.25-82.25

 

Tornado Map and Forum

6941977-08-1712:15:00 3 Maryland100800.2 Cecil$50-$500-39.53-75.83--

 

Tornado Map and Forum

6951977-08-1817:00:00 3 Florida000130.2 Lake$500-$5000-28.8-81.87--

 

Tornado Map and Forum

6961977-08-1916:20:00 3 Nevada000100.1 White Pine--39.13-114.77--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

6971977-08-1920:15:00 3 Colorado000200.1 Yuma--40.08-102.23--

 

Tornado Map and Forum

6981977-08-2019:50:00 3 Nebraska100100.1 Washington$500K-$5M-41.58-96.17--

 

Tornado Map and Forum

6991977-08-2112:00:00 3 Illinois36567726.9 Shelby, Cumberland$500K-$5M-39.43-88.6539.25-88.2

 

Tornado Map and Forum

7001977-08-2116:00:00 3 Virginia200301 Carroll$5K-$50K-36.73-80.53--

 

Tornado Map and Forum

7011977-08-2212:05:00 3 Massachusetts102100.1 Barnstable$5K-$50K-41.67-70.28--

 

Tornado Map and Forum

7021977-08-2215:23:00 3 Michigan100601.5 Luce$5K-$50K-46.32-85.52--

 

Tornado Map and Forum

7031977-08-2217:00:00 3 Texas200100.2 Navarro$5K-$50K-32.1-96.38--

 

Tornado Map and Forum

7041977-08-2217:00:00 3 Texas100100.2 Navarro<$50-32.1-96.37--

 

Tornado Map and Forum

7051977-08-2301:50:00 3 Oklahoma100501 Garfield$5K-$50K-36.4-97.93--
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

7061977-08-2317:20:00 3 Texas000200.3 Castro--34.68-102.1--

 

Tornado Map and Forum

7071977-08-2400:42:00 3 Texas000200.3 Ward--31.45-102.9--

 

Tornado Map and Forum

7081977-08-2416:30:00 3 Nebraska100100.1 Morrill$5K-$50K-41.53-103.13--

 

Tornado Map and Forum

7091977-08-2616:30:00 3 North Dakota100100.1 Richland$5K-$50K-46.15-96.8--

 

Tornado Map and Forum

7101977-08-2617:40:00 3 Minnesota2010880110.4 Otter Tail, Wadena, Cass, Crow Wing$50K-$500K-46.3-96.246.62-93.92

 

Tornado Map and Forum

7111977-08-2618:35:00 3 Minnesota301140026.3 Cass, Crow Wing$500K-$5M-46.35-94.546.53-94

 

Tornado Map and Forum

7121977-08-3016:30:00 3 Nebraska000100.1 Buffalo--40.7-98.78--

 

Tornado Map and Forum

7131977-08-3017:00:00 3 Nebraska000100.1 Adams--40.63-98.65--

 

Tornado Map and Forum

7141977-08-3116:30:00 3 Michigan1001001.9 Iosco$5K-$50K-44.37-83.7744.38-83.72
EMap/ForumSPC #DateTimeState(s)FujitaFatalitiesInjuriesWidthLengthAffected CountiesDamageCrop LossTouch LatTouch LonLift LatLift LonState #

 

Tornado Map and Forum

7151977-08-3118:15:00 3 Wisconsin4010100031.8 Marathon$500K-$5M-44.78-90.144.97-89.5
Tornado Map and Forum Comment Photo Video
Summary   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.

Date(s) (yyyy-mm-dd)TornadoesFatalitiesHighest FatalitiesInjuriesHighest InjuriesLongest PathWidest Path
1977-08-01 - 1977-08-31826 people6 people96 people56 people110.4 miles1000 yards
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