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Monthly Eastern North Pacific Tropical Weather Summary



000
ABPZ30 KNHC 011138
TWSEP 

Monthly Tropical Weather Summary
NWS National Hurricane Center Miami FL
800 AM PDT Tue Aug 01 2017

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

This July was quite busy in the eastern North Pacific basin, with
five named storms forming, four of which became hurricanes.  Two
of the hurricanes, Eugene and Fernanda, reached major hurricane
strength.  One unnamed tropical depression also formed in July.
Based on a 30-year (1981-2010) climatology, three to four named
storms typically form in the basin in July, with two becoming
hurricanes and one of those reaching major hurricane intensity.

In terms of Accumulated Cyclone Energy (ACE), which measures the
combined strength and duration of tropical storms and hurricanes,
activity in July was more than 2.5 times the average activity for
the month, making it the fifth most active July on record.  The
ACE for the season to date is almost twice the average.

Reports on individual cyclones, when completed, are available at
the National Hurricane Center website at:
hurricanes.gov/data/tcr/index.php?season=2017&basin=epac

Summary Table

Name                 Dates         Max Wind (mph)
---------------------------------------------------
TS Adrian           9-11 May            45
TS Beatriz     31 May- 2 Jun            45*
TS Calvin          11-13 Jun            40
H  Dora            25-28 Jun            90
MH Eugene           7-12 Jul           115
MH Fernanda        12-22 Jul           145
TS Greg            17-26 Jul            60
TD Eight-E         18-20 Jul            35
H  Hilary          21-30 Jul           105
H  Irwin       22 Jul-                  90
---------------------------------------------------

* Denotes a storm for which the post-storm analysis is complete.

$$
Hurricane Specialist Unit


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