000 AXPZ20 KNHC 270312 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Wed Apr 27 2022 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 0000 UTC surface analysis and satellite imagery through 0300 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: North to northeast gale-force winds of 30 to 40 kt will begin across the Gulf of Tehuantepec late tonight, 27/0600 UTC. Gales are forecast to continue until about midday Wed, with fresh to strong winds prevailing across the region through Thu afternoon. Seas will build 8 to 11 ft late tonight into Thu. Please read the latest High Seas Forecast issued by the National Hurricane Center website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from Panama near 09N82W to 08N97W to 10N110W. The ITCZ extends from 10N110W to 11N125W to beyond 07N140W. Scattered moderate convection is from 05N to 10N and E of 103W and from 05N to 13N and W of 109W. OFFSHORE WATERS WITHIN 250 NM OF MEXICO A weakening cold front is beginning to approach from the NW. Ahead of the front, gentle to moderate winds prevail across the Baja California offshores with seas 6 to 9 ft. The higher swell is noted NW of Punta Eugenia. Light to gentle winds prevail across the Gulf of California with seas 2 to 3 ft, and 4 ft near the entrance of the Gulf. Light to gentle winds prevail across most of the southern Mexican offshore waters with seas 4 to 6 ft. Fresh to strong northerly gap winds are beginning across the Gulf of Tehuantepec and seas are building to 7 ft. Patches of haze are possible offshore S Mexico due to nearby persistent agricultural fires. For the forecast, gale-force northerly winds are expected across the Gulf of Tehuantepec late tonight through Wed morning. Fresh to strong northerly winds will continue through Thu afternoon in this region. Meanwhile, gentle to moderate northerly winds will prevail across the Baja California offshores through Thu, increasing to fresh by Thu night. The long- period NW swell will persist NW of Punta Eugenia through the end of the week. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR Light to gentle mainly N winds prevail N of the surface trough, with gentle to moderate S winds to the S of the trough. Moderate to locally fresh winds are prevailing near the Papagayo region and offshore Nicaragua. Seas of 4 to 5 ft are noted across the Central American offshores. Seas of 4 to 7 ft are noted in the South American offshores. These seas are within a moderate S to SW swell. Scattered thunderstorms persist across the El Salvador and northern Nicaragua coast. Scattered thunderstorms are also noted across Costa Rica and Panama. Patches of haze are possible offshore of Guatemala and El Salvador due to nearby persistent agricultural fires. For the forecast, long-period moderate S to SW swell will persist across the region through the week. Fresh easterly winds will continue over the Papagayo region and offshore Nicaragua through Wed, and increase to fresh to strong Wed night into Thu morning. Fresh winds will continue in that area on Thu afternoon and Fri. REMAINDER OF THE AREA Moderate to fresh trades prevail N of the ITCZ and W of 120W. Long- period NW to N swell throughout this area is producing seas of 8-9 ft. Gentle to moderate winds along with seas of 5-8 ft seas due to long-period S to SW swell are noted elsewhere. For the forecast, the long-period NW to N swell will gradually decay through Wed, which will allow for seas to subside through Thu. The southerly swell should sustain 5-7 ft seas across the remainder of the basin through the week. Seas in the far western forecast area could see northerly swell with seas 8-10 ft return by the weekend. $$ AReinhart