AL071870 | 1870 season
Twin Key West (II)
Compare this track to other storms →- Formed
- 1870-10-07
- Dissipated
- 1870-10-07
- Peak wind
- 70 kt
- Lifetime category
- 1
- Min pressure
- n/a
- Florida date
- 1870-10-07
- Approach
- atlantic
- FL regions
- SW1
- Center landfall
- no
- ENSO (ASO ONI)
- pre-1950, no ONI
- Peak surge (FL)
- none exists for this era
Surge: no curated record, and none is likely to exist. Reliable landfall-zone surge observation generally predates neither the modern gauge network nor NHC Tropical Cyclone Reports for storms of this era; surge comparisons on this site skew modern as a result (disclosed on the methodology page).
Track
- below hurricane strength
- Cat 1
- Cat 2
- Cat 3
- Cat 4
- Cat 5
- first track point
- landfall (HURDAT2 L record, colored by intensity there)
- Florida-relevant point (strongest fix on the FL impact date)
- Florida Straits / Cuba shelf corridor (where track wobble is measured)
HURDAT2 best track. Coastline is stylized for orientation, not a boundary source.
Compare this track to other storms →
Intensity
Maximum sustained wind over the storm lifetime, with Saffir-Simpson thresholds and the Florida-relevant date marked. All values from HURDAT2.
Official Sources
No per-storm graphical track exists for storms before 1995.
How This Record Was Built
join: pressure_match | confidence: low | enrichment v1.3.0 | status: needs_manual_review
Impact facts from the NOAA Continental US Hurricane Impacts table; track and intensity from NOAA HURDAT2; ENSO phase from CPC ONI. Full rules on the methodology page.