Titan Archive
YearFinal SPC data

1984

907 tornadoes in 1984, with 2,749 hail and 3,566 wind reports, from the NOAA SPC severe weather database.

Tornado recordHail + windDaily reportsStorm Events narrativesEF ScaleMax path width
122
Tornado deaths
F0 373 F1 352 F2 126 F3 41 F4 14 F5 1
Hail and wind show significant reports only (2 in or larger, 65 kt or stronger). Click a legend item to show or hide it, or "only" to see just that. Select anything on the map to open its record.

Tornadoes by month

Jan: 1Feb: 27Mar: 73Apr: 176May: 169Jun: 242Jul: 72Aug: 47Sep: 17Oct: 49Nov: 30Dec: 4
JanFebMarAprMayJunJulAugSepOctNovDec

Hail reports by month

Jan: 0Feb: 112Mar: 385Apr: 572May: 545Jun: 419Jul: 239Aug: 185Sep: 118Oct: 113Nov: 54Dec: 7
JanFebMarAprMayJunJulAugSepOctNovDec

Wind reports by month

Jan: 2Feb: 148Mar: 320Apr: 525May: 567Jun: 547Jul: 574Aug: 317Sep: 176Oct: 239Nov: 108Dec: 43
JanFebMarAprMayJunJulAugSepOctNovDec

Storm days

Every day with a tornado, hail or wind report. Warmer colors mean more tornadoes; gray days had hail or wind only; a white ring marks a day with an F4/EF4 or stronger tornado.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Running count

1984 against the years around it and the 1991 to 2020 average
19841991 to 2020 average1979 to 1989 (other years)
03757501,1251,500JanFebMarAprMayJunJulAugSepOctNovDec1979: 855 tornadoes1980: 866 tornadoes1981: 782 tornadoes1982: 1,047 tornadoes1983: 930 tornadoes1985: 684 tornadoes1986: 765 tornadoes1987: 656 tornadoes1988: 702 tornadoes1989: 856 tornadoes19849071991-20 avg1,231

907 tornadoes in 1984, 26% below the 1991 to 2020 average of 1,231.

Counts by storm day (12Z to 12Z). Reporting changed a great deal over the decades, so years far from 1991 to 2020 are not a like-for-like comparison with the average.

Busiest tornado days

#DayTornadoesF/EF4+DeathsStrongestStates
106/07/8445213F5IA, KS, MN, MO, ND, NE, SD, WI
204/29/844211F4AR, IA, IL, KS, MO, MS, OK, TX
305/03/843705F3AL, GA, LA, MS, NC, SC, WY
404/26/8433112F4IA, KS, LA, MN, MO, OK, SD, WI
505/02/842500F3AL, AR, LA, MS, OK, TX
603/28/8424757F4GA, NC, SC
705/07/842200F3AL, GA, LA, TN, TX
806/11/842200F3FL, IA, KS, ND, NE, SD
906/22/842200F1IA, IL, KS, ND, NE, SD, WI, WY
1006/13/841900F2AL, CO, IL, IN, KS, MI, MT, WY
1106/17/841800F2CO, IA, MN, NE, WI
1203/15/841427F4AR, IL, KS, KY, MO, OK, TN
1304/27/841424F4IL, MI, WI
1405/18/841400F2CO, MI, NE, SD, TX
1506/12/841400F3CO, IA, IN, KS, MI, NE

Busiest severe weather days

tornado, hail and wind reports together
#DayAll reportsTornadoesHailWindLargest hailTop gust
104/26/84289331461104 in65 kt (75 mph)
205/02/8421625132593 in56 kt (64 mph)
304/29/8418642151291 in70 kt (81 mph)
403/15/8417714561074.5 in70 kt (81 mph)
505/03/8417137261082.75 in63 kt (72 mph)
605/07/841702272763 in56 kt (64 mph)
706/07/841354524663 in71 kt (82 mph)
805/06/84133793332.75 in70 kt (81 mph)
903/27/841251183312.75 in61 kt (70 mph)
1003/28/841252441602.75 in56 kt (64 mph)
1106/13/841121948453 in61 kt (70 mph)
1205/08/841101015852.5 in74 kt (85 mph)
1304/27/841071434592 in74 kt (85 mph)
1406/22/841012233462.75 in90 kt (104 mph)
1510/16/841011119712.75 in65 kt (75 mph)

Largest hail

top 15
#DateSizePlaceNote
103/15/844.5 inMayes County, OK
203/22/844.5 inCotton County, OK
309/08/844.5 inMcClain County, OK
409/10/844.5 inClinton County, MO
504/26/844 inLogan County, OK
604/26/844 inLogan County, OK
704/26/844 inPayne County, OK
804/26/844 inLogan County, OK
904/26/844 inPayne County, OK
1009/02/843.5 inSaginaw County, MI
1103/25/843 inBay County, FL
1205/02/843 inUnion County, MS
1305/07/843 inMorgan County, AL
1406/07/843 inColfax County, NE
1506/11/843 inChase County, NE

Strongest wind gusts

top 15, measured first on ties
#DateGustmphTypePlaceNote
106/12/84139 kt160Not givenMinnehaha County, SD
210/22/84110 kt127Not givenBeauregard Parish, LA
306/22/8490 kt104Not givenEmmet County, IA
409/01/8487 kt100Not givenYork County, NE
511/01/8487 kt100Not givenDunklin County, MO
607/31/8486 kt99Not givenMorrison County, MN
706/06/8485 kt98Not givenRock County, WI
808/17/8484 kt97Not givenKeweenaw County, MI
910/21/8484 kt97Not givenKimble County, TX
1002/12/8483 kt96Not givenHarris County, TX
1105/23/8482 kt94Not givenRutland County, VT
1208/06/8481 kt93Not givenCoffey County, KS
1307/03/8479 kt91Not givenFremont County, CO
1407/10/8478 kt90Not givenWashington County, WI
1507/14/8478 kt90Not givenHamilton County, IA

F4/EF4 and stronger

15
DateRatingTornadoStateLengthWidthDeathsInjuries
03/15/84F4Clinton to Southside, ArkansasAR41.0 mi440 yd213
03/15/84F4Newport to Weiner, ArkansasAR26.0 mi440 yd512
03/28/84F4Winnsboro, South CarolinaSC21.0 mi1,000 yd549
03/28/84F4Kershaw, South CarolinaSC4.0 mi530 yd036
03/28/84F4Cheraw, South CarolinaSC7.0 mi700 yd024
03/28/84F4Bennettsville, SC to Maxton, NCSC, NC17.0 mi2,113 yd7100
03/28/84F4McColl, SC to Hope Mills, NCSC, NC40.0 mi2,600 yd4395
03/28/84F4Clinton to Walnut Creek, North CarolinaNC21.0 mi1,407 yd3149
03/28/84F4La Grange to Grimesland, North CarolinaNC28.0 mi1,223 yd16153
04/26/84F4Oilton to Westport, OklahomaOK22.0 mi880 yd337
04/27/84F4Winneconne to Seymour, WisconsinWI27.5 mi60 yd119
04/27/84F4Wales to Sussex, WisconsinWI6.5 mi10 yd114
04/29/84F4Drumright to Westport, OklahomaOK27.0 mi200 yd160
06/07/84F4Bethany, MO to Wellman, IAMO, IA134 mi250 yd364
06/08/84F5Ridgeway to Dane, WisconsinWI36.0 mi450 yd9200

Deadliest tornadoes

DateRatingTornadoStateLengthWidthDeathsInjuries
03/28/84F4La Grange to Grimesland, North CarolinaNC28.0 mi1,223 yd16153
04/21/84F3Eupora to New Albany, MississippiMS71.0 mi10 yd1576
03/28/84F3St. Pauls to Faison, North CarolinaNC40.0 mi1,407 yd12101
06/08/84F5Ridgeway to Dane, WisconsinWI36.0 mi450 yd9200
04/26/84F3Henryetta to Morris, OklahomaOK22.0 mi1,760 yd895
03/28/84F4Bennettsville, SC to Maxton, NCSC, NC17.0 mi2,113 yd7100
03/28/84F3Aulander, North CarolinaNC6.0 mi880 yd619
03/15/84F4Newport to Weiner, ArkansasAR26.0 mi440 yd512
03/28/84F4Winnsboro, South CarolinaSC21.0 mi1,000 yd549
05/03/84F3Prattville to Coosada, AlabamaAL7.0 mi800 yd537
03/28/84F4McColl, SC to Hope Mills, NCSC, NC40.0 mi2,600 yd4395
03/28/84F4Clinton to Walnut Creek, North CarolinaNC21.0 mi1,407 yd3149
04/26/84F4Oilton to Westport, OklahomaOK22.0 mi880 yd337
06/07/84F4Bethany, MO to Wellman, IAMO, IA134 mi250 yd364
03/15/84F4Clinton to Southside, ArkansasAR41.0 mi440 yd213
  • Storm days. A day here runs from 12Z to 12Z (6 a.m. CST to 6 a.m. CST the next morning), the way SPC counts storm days, so an overnight tornado counts with the afternoon and evening before it.
  • Reporting changed over time. Tornado counts rose from the 1990s on as Doppler radar, spotter networks and cameras caught more weak tornadoes. Counts from different decades are not directly comparable, especially for the weakest ratings.
  • F and EF ratings. The Enhanced Fujita (EF) Scale replaced the Fujita (F) Scale on 02/01/07. Both estimate wind speed from damage, but they use different damage indicators, so each rating is shown with its own scale.
Titan Archive · a Tornado Titans project Data: NOAA Storm Prediction Center severe weather database · updated 10/03/26