Phase vs Phase, 1950-2025 (ONI coverage)

ENSO Laboratory

Head-to-head comparison of the three ENSO phases across every hurricane season from 1950 to 2025. Raw counts alone mislead when the phases occur unequally often, so each column also shows how many total seasons that phase produced, and the share that brought Florida a hurricane. Storms before 1950 predate the ONI record and are listed in the Timeline without a phase.

El Nino

22 seasons in phase

FL impact seasons7 of 22 (32%)

FL hurricanes11

Center landfalls9

Major impacts (Cat 3+)6

Gulf vs Atlantic8 / 3

Gulf 73%Atlantic 27%

La Nina

18 seasons in phase

FL impact seasons7 of 18 (39%)

FL hurricanes11

Center landfalls10

Major impacts (Cat 3+)3

Gulf vs Atlantic5 / 6

Gulf 45%Atlantic 55%

Neutral

36 seasons in phase

FL impact seasons12 of 36 (33%)

FL hurricanes22

Center landfalls17

Major impacts (Cat 3+)9

Gulf vs Atlantic14 / 8

Gulf 64%Atlantic 36%

Approach side is derived from the HURDAT2 track by a documented heuristic, not a NOAA-published field; see the methodology.

Storms Behind the Numbers

All phases El Nino La Nina Neutral

Both approaches Gulf Atlantic

8 storms match.

Season	Storm	ENSO	FL Month	Regions	Approach	Peak Cat	Min P (mb)	Landfall	Join
2017	Irma	Neutral	Sep	SW4 SE1	atlantic	5	914	yes	name_match
2016	Matthew	Neutral	Oct	NE2	atlantic	5	934	no	name_match
2005	Katrina	Neutral	Aug	SE1 SW1	atlantic	5	902	yes	name_match
1992	Andrew	Neutral	Aug	SE5 SW4	atlantic	5	922	yes	name_match
1979	David	Neutral	Sep	SE2 NE2	atlantic	5	924	no	name_match
1966	Inez	Neutral	Oct	SW2 SE2	atlantic	5	927	yes	name_match
1960	Donna	Neutral	Sep	SW4 SE4 NE1	atlantic	4	930	yes	name_match
1950	King	Neutral	Oct	SE4 NE1	atlantic	4	955	yes	name_match

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