000 AXPZ20 KNHC 072203 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Sun Nov 7 2021 Tropical Weather Discussion for the eastern Pacific Ocean from 03.4S to 30N, east of 120W including the Gulf of California, and from the Equator to 30N, between 120W and 140W. The following information is based on satellite imagery, weather observations, radar, and meteorological analysis. Based on 1800 UTC surface analysis and satellite imagery through 2150 UTC. ...SPECIAL FEATURES... Tropical Storm Terry is centered near 8.5N 102.6W at 07/2100 UTC moving W at 12 kt. Estimated minimum central pressure is 1007 mb. Maximum sustained wind speed is 35 kt with gusts to 45 kt. Peak wave heights are estimated at 12 ft within 90 nm NE quadrant of the center. Scattered to numerous moderate to strong convection is from 06N to 12N between 96W AND 106W. Some slight additional strengthening is possible during the next day or so. Weakening is forecast to begin by late Tuesday. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPEP3.shtml and Forecast/ Advisory at https://www.nhc.noaa.gov/text/MIATCMEP3.shtml for more details. Tropical Storm Sandra is centered near 14.0N 115.2W at 07/2100 UTC moving WNW at 9 kt. Estimated minimum central pressure is 1006 mb. Maximum sustained wind speed is 35 kt with gusts to 45 kt. Peak seas are up to 11 ft. Scattered moderate convection is from 0N to 18N between 108W and 118W. Little change in strength is forecast during the next day or so, followed by gradual weakening. Sandra is expected to become a remnant low on Tuesday. Please read the latest NHC Public Advisory at https://www.nhc.noaa.gov/text/MIATCPEP4.shtml and Forecast/ Advisory at https://www.nhc.noaa.gov/text/MIATCMEP4.shtml for more details. Gulf of Tehuantepec Gale Warning: The pressure gradient between high pressure across the western Gulf of Mexico and Tropical Storm Terry SW of Tehuantepec is supporting gale force gap winds over the Gulf of Tehuantepec. This gale force gap wind event is expected to last through tonight, with peak winds of around 35 kt and seas forecast to reach a maximum of around 12 ft. Winds are expected to diminish just below gale force early Mon morning and persist through Tue evening before gradually diminishing through Thu. Please read the latest NWS High Seas Forecast issued by the National Hurricane Center at website https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for further details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N84W to 09N104W then resumes near 13N114W to 10N129W. The ITCZ continues from 10N129W to beyond 09N140W. Aside from the convection associated with the tropical cyclones in the special features section above, scattered moderate to strong convection is N of 02N E of 84W, and from 09N to 14N between 120W and 127W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO Please see the Special Features section above for details on the latest Gulf of Tehuantepec gale force gap wind event as well as information on T.S Terry and T.S. Sandra. Elsewhere, a weak surface ridge extends SE to the W of Baja California Sur. A weak pressure gradient across the region is supporting light to gentle northerly winds across the waters west of the Baja California peninsula, inside the Gulf of California and across the SW Mexico offshore waters. Seas are in the 6-9 ft range in mixed swell, except for 1-3 ft in the Gulf of California. Gale conditions will prevail in the Gulf of Tehuantepec through tonight, and then return briefly Mon night. Gentle to moderate northerly winds will persist across the offshore waters of Baja through tonight then become moderate to fresh Tue through Wed. Light to gentle winds will continue across the Gulf of California through Tue night before freshening late Wed through Thu. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR Light to gentle winds are N of the monsoon trough while gentle to moderate SW to W winds prevail S of the monsoon trough. Seas of 4-6 ft prevail in SW swell across the discussion waters. Winds will pulse from fresh to strong over the Gulf of Papagayo each night for the next several days. Gentle to moderate SW winds will persist S of the monsoon trough. REMAINDER OF THE AREA... Please see special features section above for more on T.S Terry and T.S. Sandra. The pressure gradient between high pressure across the northern waters and lower pressure within the monsoon trough and in the vicinity of the ITCZ is supporting moderate to fresh NE to E winds N of the ITCZ and monsoon trough to near 24N and W of 124W, with gentle to moderate winds N of 24N. Gentle to moderate winds prevail south of the monsoon trough and ITCZ. Seas are in the 7-9 ft range in mixed NW and S swell over the waters north of 10N and west 115W. Seas in the 6-8 ft range prevail elsewhere. The NW swell will gradually decay through the weekend. A cold front will move near the far NW waters on Mon, preceded by fresh SW to W winds and seas to near 9 ft. $$ Ramos