The 1973 hurricane season

Every storm track on one map · Atlantic & Pacific · 26 systems

Atlantic storms
12
5 hurricanes · 1 major
Atlantic ACE
53
1991–2020 avg ≈ 123
Strongest
115 mph
Ellen
Landfalling
5
Atlantic storms
Pacific storms
12
7 hurricanes · 3 major
Pacific strongest
161 mph
Ava

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 1973 season went

The 1973 Atlantic season produced 12 tropical storms, 5 hurricanes and 1 major hurricanes (Cat 3+), with an accumulated cyclone energy (ACE) of 53. The strongest was Hurricane Ellen at 115 mph / 962 mb. 5 storms made landfall.

The 1973 Eastern Pacific season (Eastern and Central Pacific) produced 12 tropical storms, 7 hurricanes and 3 major hurricanes (Cat 3+), with an accumulated cyclone energy (ACE) of 115. The strongest was Hurricane Ava at 161 mph / 915 mb. 0 storms made landfall.

02 · Timeline

Storm by storm, month by month

APRMAYJUNJULAUGSEPOCTNOVUnnamed storm #18 — April 25–26, 1973Unnamed storm #18 TDHurricane Ava — June 2–12, 1973Ava Cat 5Tropical Storm Bernice — June 22–23, 1973Bernice TSTropical Storm Claudia — June 26–30, 1973Claudia TSHurricane Alice — July 1–7, 1973Alice Cat 1Hurricane Doreen — July 18 – August 3, 1973Doreen Cat 4Hurricane Emily — July 21–28, 1973Emily Cat 4Unnamed storm #19 — July 23–25, 1973Unnamed storm #19 TSHurricane Florence — July 25–30, 1973Florence Cat 1Subtropical Storm Alfa — July 30 – August 2, 1973Alfa TSTropical Storm Glenda — July 30 – August 5, 1973Glenda TSHurricane Brenda — August 18–22, 1973Brenda Cat 1Tropical Storm Christine — August 26 – September 4, 1973Christine TSTropical Storm Heather — August 31 – September 1, 1973Heather TSHurricane Delia — September 2–7, 1973Delia Cat 1Unnamed storm #11 — September 10–13, 1973Unnamed storm #11 TSHurricane Ellen — September 13–27, 1973Ellen Cat 3Hurricane Irah — September 22–27, 1973Irah Cat 2Tropical Storm Jennifer — September 23–27, 1973Jennifer TSUnnamed storm #13 — September 24–26, 1973Unnamed storm #13 TDHurricane Katherine — September 29 – October 9, 1973Katherine Cat 2Unnamed storm #20 — October 4–10, 1973Unnamed storm #20 TSHurricane Lillian — October 5–9, 1973Lillian Cat 1Hurricane Fran — October 7–14, 1973Fran Cat 1Tropical Storm Gilda — October 16–30, 1973Gilda TSUnnamed storm #17 — November 17–20, 1973Unnamed storm #17 TS

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 1973

StormDatesPeakPressureLandfallACE
Unnamed storm #18Apr 25 – Apr 26TD 35 mph1006 mb—0.0
Hurricane AliceJul 1 – Jul 7Cat 1 86 mph984 mbNewfoundland and Labrador, Canada6.3
Unnamed storm #19Jul 23 – Jul 25TS 46 mph1007 mbyes0.4
Subtropical Storm AlfaJul 30 – Aug 2TS 46 mph1005 mb—1.0
Hurricane BrendaAug 18 – Aug 22Cat 1 92 mph977 mbCampeche, Mexico, Quintana Roo, Mexico4.7
Tropical Storm ChristineAug 26 – Sep 4TS 58 mph999 mb—5.1
Hurricane DeliaSep 2 – Sep 7Cat 1 86 mph986 mbTexas4.8
Unnamed storm #11Sep 10 – Sep 13TS 40 mph1001 mb—0.4
Hurricane EllenSep 13 – Sep 27Cat 3 115 mph962 mb—14.5
Unnamed storm #13Sep 24 – Sep 26TD 35 mph1009 mb—0.0
Unnamed storm #20Oct 4 – Oct 10TS 63 mph1006 mb—2.4
Hurricane FranOct 7 – Oct 14Cat 1 86 mph974 mb—5.9
Tropical Storm GildaOct 16 – Oct 30TS 69 mph968 mbSancti Spíritus Province, Cuba6.8
Unnamed storm #17Nov 17 – Nov 20TS 40 mph1006 mb—0.6

04 · Pacific

Eastern & Central Pacific storms of 1973

StormDatesPeakPressureLandfallACE
Hurricane AvaJun 2 – Jun 12Cat 5 161 mph915 mb—29.1
Tropical Storm BerniceJun 22 – Jun 23TS 69 mph——1.0
Tropical Storm ClaudiaJun 26 – Jun 30TS 63 mph999 mb—1.4
Hurricane DoreenJul 18 – Aug 3Cat 4 138 mph968 mb—34.3
Hurricane EmilyJul 21 – Jul 28Cat 4 138 mph972 mb—13.6
Hurricane FlorenceJul 25 – Jul 30Cat 1 92 mph995 mb—4.1
Tropical Storm GlendaJul 30 – Aug 5TS 58 mph——3.8
Tropical Storm HeatherAug 31 – Sep 1TS 52 mph——0.8
Hurricane IrahSep 22 – Sep 27Cat 2 109 mph955 mb—7.4
Tropical Storm JenniferSep 23 – Sep 27TS 40 mph——0.5
Hurricane KatherineSep 29 – Oct 9Cat 2 98 mph978 mb—12.7
Hurricane LillianOct 5 – Oct 9Cat 1 86 mph990 mb—5.9
← Previous season1972Next season →1974

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