546 ABPZ20 KNHC 151135 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 500 AM PDT Wed May 15 2019 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 2019 is as follows: Name Pronunciation Name Pronunciation ------------------------------------------------------------- Alvin AL-vin Mario MAR-ee-o Barbara BAR-bruh Narda NAHR-duh Cosme COS-may Octave AKH-tayv Dalila dah-LY-lah Priscilla prih-SIH-luh Erick EHR-rk Raymond RAY-mund Flossie FLOSS-ee Sonia SOHN-yah Gil gil Tico TEE-koh Henriette hen-ree-ETT Velma VELL-muh Ivo eye-VOH Wallis WAHL-lis Juliette jew-lee-EHT Xina ZEE-nah Kiko KEE-ko York york Lorena low-RAY-na Zelda ZEL-dah 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. The National Hurricane Center (NHC) has 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 https://www.hurricanes.gov. More information NHC text products can be found at https://www.hurricanes.govaboutnhcprod.shtml, while more information about NHC graphical products can be found at https://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 (@NHC_Pacific) is available at https://www.hurricanes.gov/twitter.shtml. $$ Forecaster Avila