The 1984 hurricane season

Every storm track on one map · Atlantic & Pacific · 41 systems

Atlantic storms
13
5 hurricanes · 1 major
Atlantic ACE
84
1991–2020 avg ≈ 123
Strongest
132 mph
Diana
Landfalling
1
Atlantic storms
Pacific storms
21
13 hurricanes · 7 major
Pacific strongest
144 mph
Douglas

TD TS Cat 1 2 3 4 5 · hover a track to highlight it, click to open the storm’s own page with an animated replay.

01 · Summary

How the 1984 season went

The 1984 Atlantic season produced 13 tropical storms, 5 hurricanes and 1 major hurricanes (Cat 3+), with an accumulated cyclone energy (ACE) of 84. The strongest was Hurricane Diana at 132 mph / 949 mb. 1 storm made landfall.

The 1984 Eastern Pacific season (Eastern and Central Pacific) produced 21 tropical storms, 13 hurricanes and 7 major hurricanes (Cat 3+), with an accumulated cyclone energy (ACE) of 193. The strongest was Hurricane Douglas at 144 mph. 0 storms made landfall.

02 · Timeline

Storm by storm, month by month

MAYJUNJULAUGSEPOCTNOVDECTropical Storm Alma — May 17–21, 1984Alma TSHurricane Boris — May 28 – June 18, 1984Boris Cat 1Unnamed storm #1 — June 11–14, 1984Unnamed storm #1 TDHurricane Cristina — June 17–26, 1984Cristina Cat 2Unnamed storm #2 — June 18–20, 1984Unnamed storm #2 TDHurricane Douglas — June 25 – July 6, 1984Douglas Cat 4Hurricane Elida — June 28 – July 8, 1984Elida Cat 4Hurricane Fausto — July 3–10, 1984Fausto Cat 2Hurricane Genevieve — July 7–14, 1984Genevieve Cat 3Unnamed storm #3 — July 24–26, 1984Unnamed storm #3 TDTropical Storm Hernan — July 27 – August 1, 1984Hernan TSHurricane Iselle — August 3–12, 1984Iselle Cat 4Unnamed storm #4 — August 6–8, 1984Unnamed storm #4 TDTropical Storm Julio — August 15–20, 1984Julio TSHurricane Keli — August 16–22, 1984Keli Cat 3Tropical Storm Kenna — August 16–21, 1984Kenna TSUnnamed storm #5 — August 18–21, 1984Unnamed storm #5 TSTropical Storm Lala — August 23 – September 2, 1984Lala TSHurricane Lowell — August 26–30, 1984Lowell Cat 1Tropical Storm Arthur — August 28 – September 5, 1984Arthur TSTropical Storm Bertha — August 30 – September 4, 1984Bertha TSTropical Storm Cesar — August 31 – September 2, 1984Cesar TSTropical Storm Moke — September 4–5, 1984Moke TSHurricane Marie — September 5–11, 1984Marie Cat 1Unnamed storm #9 — September 6–8, 1984Unnamed storm #9 TDHurricane Diana — September 8–16, 1984Diana Cat 4Tropical Storm Edouard — September 14–15, 1984Edouard TSHurricane Norbert — September 14–26, 1984Norbert Cat 4Tropical Storm Fran — September 15–20, 1984Fran TSTropical Storm Gustav — September 16–19, 1984Gustav TSHurricane Odile — September 17–23, 1984Odile Cat 2Hurricane Hortense — September 23 – October 2, 1984Hortense Cat 1Tropical Storm Isidore — September 25 – October 1, 1984Isidore TSHurricane Polo — September 26 – October 3, 1984Polo Cat 3Hurricane Josephine — October 7–21, 1984Josephine Cat 2Tropical Storm Rachel — October 7–16, 1984Rachel TSUnnamed storm #17 — October 25–28, 1984Unnamed storm #17 TDTropical Storm Simon — October 31 – November 8, 1984Simon TSHurricane Klaus — November 5–13, 1984Klaus Cat 1Unnamed storm #19 — November 23–28, 1984Unnamed storm #19 TDHurricane Lili — December 12–24, 1984Lili Cat 1

Each bar is one storm’s life, colored by its strength at that moment (faded = post-tropical). Click a bar to open the storm.

03 · Atlantic

Atlantic storms of 1984

StormDatesPeakPressureLandfallACE
Unnamed storm #1Jun 11 – Jun 14TD 35 mph——0.0
Unnamed storm #2Jun 18 – Jun 20TD 35 mph——0.0
Unnamed storm #3Jul 24 – Jul 26TD 35 mph——0.0
Unnamed storm #4Aug 6 – Aug 8TD 35 mph——0.0
Unnamed storm #5Aug 18 – Aug 21TS 58 mph1000 mb—1.5
Tropical Storm ArthurAug 28 – Sep 5TS 52 mph1004 mb—1.3
Tropical Storm BerthaAug 30 – Sep 4TS 40 mph1007 mb—0.5
Tropical Storm CesarAug 31 – Sep 2TS 58 mph989 mb—1.5
Unnamed storm #9Sep 6 – Sep 8TD 35 mph——0.0
Hurricane DianaSep 8 – Sep 16Cat 4 132 mph949 mbNorth Carolina15.2
Tropical Storm EdouardSep 14 – Sep 15TS 63 mph998 mb—0.8
Tropical Storm FranSep 15 – Sep 20TS 63 mph994 mb—3.3
Tropical Storm GustavSep 16 – Sep 19TS 52 mph1006 mb—0.6
Hurricane HortenseSep 23 – Oct 2Cat 1 75 mph993 mb—7.4
Tropical Storm IsidoreSep 25 – Oct 1TS 58 mph999 mb—3.6
Hurricane JosephineOct 7 – Oct 21Cat 2 104 mph965 mb—19.5
Unnamed storm #17Oct 25 – Oct 28TD 35 mph——0.0
Hurricane KlausNov 5 – Nov 13Cat 1 92 mph971 mb—12.9
Unnamed storm #19Nov 23 – Nov 28TD 35 mph——0.0
Hurricane LiliDec 12 – Dec 24Cat 1 81 mph980 mb—16.2

04 · Pacific

Eastern & Central Pacific storms of 1984

StormDatesPeakPressureLandfallACE
Tropical Storm AlmaMay 17 – May 21TS 58 mph——2.5
Hurricane BorisMay 28 – Jun 18Cat 1 75 mph——5.9
Hurricane CristinaJun 17 – Jun 26Cat 2 104 mph——12.8
Hurricane DouglasJun 25 – Jul 6Cat 4 144 mph——21.3
Hurricane ElidaJun 28 – Jul 8Cat 4 132 mph——18.0
Hurricane FaustoJul 3 – Jul 10Cat 2 109 mph——12.5
Hurricane GenevieveJul 7 – Jul 14Cat 3 115 mph——12.1
Tropical Storm HernanJul 27 – Aug 1TS 52 mph——1.3
Hurricane IselleAug 3 – Aug 12Cat 4 132 mph——16.3
Tropical Storm JulioAug 15 – Aug 20TS 63 mph——1.7
Hurricane KeliAug 16 – Aug 22Cat 3 115 mph——9.5
Tropical Storm KennaAug 16 – Aug 21TS 58 mph——3.0
Tropical Storm LalaAug 23 – Sep 2TS 52 mph——0.9
Hurricane LowellAug 26 – Aug 30Cat 1 86 mph——4.2
Tropical Storm MokeSep 4 – Sep 5TS 52 mph——0.7
Hurricane MarieSep 5 – Sep 11Cat 1 92 mph——7.6
Hurricane NorbertSep 14 – Sep 26Cat 4 132 mph——39.7
Hurricane OdileSep 17 – Sep 23Cat 2 104 mph——7.6
Hurricane PoloSep 26 – Oct 3Cat 3 115 mph——9.8
Tropical Storm RachelOct 7 – Oct 16TS 63 mph——2.6
Tropical Storm SimonOct 31 – Nov 8TS 63 mph——3.4
← Previous season1983Next season →1985

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