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Tropical Weather Outlook
NWS National Hurricane Center Miami FL
500 AM PDT Mon May 15 2017

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

Tropical cyclone formation is not expected during the next 5 days.

Today marks the first day of the eastern North Pacific hurricane
season, which will run until November 30.  Long-term averages for
the number of named storms, hurricanes, and major hurricanes are
15, 8, and 4, respectively.

The list of names for 2017 is as follows:

Name           Pronunciation    Name            Pronunciation
-------------------------------------------------------------
Adrian         AY-dree-uhn      Max             maks
Beatriz        BEE-a-triz       Norma           NOOR-muh
Calvin         KAL-vin          Otis            OH-tis
Dora           DOR-ruh          Pilar           Pee-LAHR
Eugene         YOU-jeen         Ramon           rah-MOHN
Fernanda       fer-NAN-dah      Selma           SELL-mah
Greg           greg             Todd            tahd
Hilary         HIH-luh-ree      Veronica        vur-RAHN-ih-kuh
Irwin          UR-win           Wiley           WY-lee
Jova           HO-vah           Xina            ZEE-nah
Kenneth        KEH-neth         York            york
Lidia          LIH-dyah         Zelda           ZEL-dah

One tropical cyclone, Tropical Storm Adrian, already formed earlier
this month.  The next named storm that forms this season will be
named Beatriz.

This product, the Tropical Weather Outlook, briefly describes
significant areas of disturbed weather and their potential for
tropical cyclone formation during the next five days.  The issuance
times of this product are 5 AM, 11 AM, 5 PM, and 11 PM PDT.  After
the change to standard time in November, the issuance times are 4
AM, 10 AM, 4 PM, and 10 PM PST.

A Special Tropical Weather Outlook will be issued to provide
updates, as necessary, in between the regularly scheduled issuances
of the Tropical Weather Outlook.  Special Tropical Weather Outlooks
will be issued under the same WMO and AWIPS headers as the regular
Tropical Weather Outlooks.

A standard package of products, consisting of the tropical cyclone
public advisory, the forecast/advisory, the cyclone discussion, and
a wind speed probability product, is issued every six hours for all
ongoing tropical cyclones.  In addition, a special advisory package
may be issued at any time to advise of significant unexpected
changes or to modify watches or warnings.

Beginning this season, the National Hurricane Center (NHC) will have
the option to issue advisories, watches, and warnings for
disturbances that are not yet a tropical cyclone, but which pose the
threat of bringing tropical storm or hurricane conditions to land
areas within 48 hours.  For these land-threatening "potential
tropical cyclones", NHC will issue the full suite of advisory and
watch/warning products that previously had been issued only for
tropical cyclones.  Potential tropical cyclones will share the
naming conventions currently in place for tropical depressions,
being numbered from a single list (e.g., "One-E", "Two-E",
"Three-E", etc.).

The Tropical Cyclone Update is a brief statement to inform of
significant changes in a tropical cyclone, to post or cancel watches
or warnings, or to provide hourly position updates between
intermediate advisories when the storm center is easily followed by
radar.  The Tropical Cyclone Update is also used in lieu of or to
precede the issuance of a special advisory package. Tropical Cyclone
Updates, which can be issued at any time, can be found under WMO
header WTPZ61-65 KNHC, and under AWIPS header MIATCUEP1-5.

All NHC text and graphical products are available on the web at
http://www.hurricanes.gov.  More information on NHC text products
can be found at http://www.hurricanes.govaboutnhcprod.shtml, while
more information about NHC graphical products can be found at
http://www.hurricanes.gov/aboutnhcgraphics.shtml.

You can also interact with NHC on Facebook at
https://www.facebook.com/NWSNHC.  Notifications are available
via Twitter when select NHC products are issued.  Information
about our east Pacific Twitter feed is available at
http://www.hurricanes.gov/twitter.shtml.

$$
Forecaster Brown
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