ABPZ30 KNHC 011502

800 AM PST TUE DEC 01 2015

Corrected for number of hurricanes for the season in second paragraph.

For the eastern North Pacific, east of 140 degrees west longitude:

Two named storms formed in the basin in November, and one of these, Sandra, became a major hurricane. Hurricane Sandra was the latest major hurricane observed in the basin since reliable records began in 1971. This level of activity was quite unusual for November, since a named storm forms in the basin only about once every 4 years, with a hurricane forming only once every 9 or 10 years based on a 30-year (1981-2010) climatology.

For the 2015 hurricane season overall, the basin was very active with 18 named storms, 13 hurricanes, and 9 major hurricanes. There were three unnamed tropical depressions and another tropical depression that formed in the basin that became a tropical storm (Ela) in the central North Pacific. Activity for 2015 was well above the long-term means of 15 named storms, 8 hurricanes and 4 major hurricanes. The number of major hurricanes observed in the basin in 2015 was the highest since reliable records began in 1971.

In terms of Accumulated Cyclone Energy (ACE), which measures the combined strength and duration of tropical storms and hurricanes, activity in the basin for 2015 was about 44 percent higher than the 1981-2010 median value. The ACE value for 2015 is the highest observed in the basin since 1993, and the 7th highest since reliable records began in 1971.

Reports on individual cyclones, when completed, are available at the website of the National Hurricane Center at http://www.nhc.noaa.gov/data/tcr/index.php?season=2015&basin=epac

Summary Table

Name Dates Max Wind (mph)
MH Andres* 28 May-4 Jun 145 MH Blanca* 31 May-9 Jun 145 H Carlos* 10-17 Jun 90 TS Ela** 8-10 Jul 40*** MH Dolores* 11-18 Jul 130 TS Enrique* 12-18 Jul 50 TS Felicia* 23-24 Jul 40 TD Eight-E* 27-29 Jul 35 H Guillermo* 29 Jul-7 Aug 110 MH Hilda* 6-13 Aug 140*** TD Eleven-E 16-18 Aug 35 MH Ignacio 25 Aug-5 Sep 145*** MH Jimena 26 Aug- 9 Sep 150 TS Kevin* 31 Aug-5 Sep 60 MH Linda* 5-10 Sep 125 TD Sixteen-E 20-21 Sep 35 H Marty 26- 1 Oct 80 TS Nora 9-15 Oct 70 MH Olaf 15-27 Oct 150*** MH Patricia 20-24 Oct 200 TS Rick 18-22 Nov 40 MH Sandra 23-28 Nov 145

* Denotes a storm for which the post-storm analysis is complete. ** Tropical Storm Ela began in the eastern North Pacific basin as Tropical Depression Four-E and reached tropical storm status after moving into the central North Pacific basin. *** Peak intensity reached in the central North Pacific basin.

$$ Hurricane Specialist Unit

Preliminary Eastern North Pacific Tropical Cyclone Tracks
Preliminary Eastern North Pacific Tropical Cyclone Tracks