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Katia — 2011

Peak intensity: Cat 4 (138 mph). Active August 28–September 12, 2011 (16 days).

On this page
  1. By the numbers
  2. Storm summary
  3. Track and observations
  4. Location-specific summary

By the numbers

Peak winds
138 mph
Cat 4
Min pressure
942 mb
at peak intensity
Observations
64
6-hourly fixes
ACE
27.0
accumulated cyclone energy

Storm summary

A plain-language narrative summary for this storm is on the way. In the meantime, the key statistics above and the full observation log below come directly from HURDAT2, NOAA's official Atlantic hurricane database. Where the National Hurricane Center has published a Tropical Cyclone Report, a link to the official PDF will appear here.

Track and observations

The complete observation log below lists all 64 fixes from HURDAT2 — position, status, wind, and pressure at each interval over the storm's lifetime.

Show first 12 observations
Time Status Lat / Lon Winds Pressure
2011-08-28 00:00Z LO 9.5, -19.0 23 mph 1012 mb
2011-08-28 06:00Z LO 9.4, -20.3 23 mph 1011 mb
2011-08-28 12:00Z LO 9.3, -21.6 29 mph 1010 mb
2011-08-28 18:00Z LO 9.3, -22.9 29 mph 1009 mb
2011-08-29 00:00Z LO 9.3, -24.2 29 mph 1009 mb
2011-08-29 06:00Z TD 9.5, -25.6 29 mph 1009 mb
2011-08-29 12:00Z TD 9.9, -27.0 34 mph 1008 mb
2011-08-29 18:00Z TD 10.6, -28.2 34 mph 1008 mb
2011-08-30 00:00Z TS 11.0, -29.6 40 mph 1006 mb
2011-08-30 06:00Z TS 11.5, -31.1 46 mph 1004 mb
2011-08-30 12:00Z TS 12.0, -32.9 52 mph 1001 mb
2011-08-30 18:00Z TS 12.6, -34.6 57 mph 997 mb
Source: HURDAT2 — NOAA Atlantic Hurricane Database, public domain. Storm ID: AL122011