000 AXPZ20 KNHC 040340 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Jun 4 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 0330 UTC. ...SPECIAL FEATURES... The Central American Gyre that has been bringing moist onshore flow to portions of northern Central America is starting to weaken, as Potential Tropical Cyclone One moves farther away to the northeast. The Pacific moisture is enhancing the development of showers and thunderstorms across the region. This rainfall is adding to previous precipitation that occurred during the past several days, and localized flooding is still possible. However, gradual improvement is expected from late Sat through early Sun. Please consult products from your local weather office for specific information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... Potential Tropical Cyclone One over the SE Gulf of Mexico is interrupting the monsoon trough over Central America. The western segment of the monsoon trough starts over the Pacific near a 1011 mb low pressure near 12N113W and continues to 07N125W. The ITCZ stretches from 07N125W to beyond 08N140W. Scattered moderate convection is noted from 10N to 13N and between 102W and 112W. Scattered moderate to isolated strong convection is present from 06N to 11N and W of 135W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Gentle to locally fresh NW winds are found over the offshore waters of Baja California Norte and light to moderate NW winds offshore Baja California Sur. NW swell is producing seas of 4-7 ft north of Punta Eugenia and 3-6 ft south of Punta Eugenia to the los Cabos area. Light to locally moderate winds and seas of 1-3 ft prevail in the Gulf of California. In the remainder of the Mexican offshore waters, including the Gulf of Tehuantepec, gentle winds and moderate seas are observed. Some minor visibility limitations are possible due to haze or smoke between Cabo Corrientes and Cabo San Lucas. For the forecast, gentle to locally fresh W winds south of the Gulf of Tehuantepec will subside through the weekend, becoming light to gentle. SW swell to 7 ft will subside off southern Mexico through tonight, but another round of SW swell to 8 ft can be expected by early next week. Farther north, building high pressure west of the area will support moderate to fresh NW to N winds off Baja California north of Cabo San Lazaro that will persist through early next week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, and WITHIN 750 NM OF ECUADOR... Moderate to locally fresh westerly winds with seas to 8 ft are occurring off the coasts of northern Central America. This is associated with the Central American Gyre, and the moist westerly flow will support periods of showers and thunderstorms across across portions of Central America. Farther south, light to gentle S-SW breezes are noted. A recent altimeter satellite pass captured seas of 5-8 ft over the offshore waters of Guatemala, with the highest seas located near 09-10N and 93W. For the forecast, convergent westerly flow will support scattered showers and thunderstorms along with SW swell to 8 ft into Sat mainly off Guatemala and El Salvador, then diminish. Looking ahead, another round of SW swell to 8 ft will return to the waters off Guatemala and El Salvador by Mon night. Elsewhere gentle to moderate SW to S winds will persist through early next week. ...REMAINDER OF THE AREA... A 1019 mb high pressure system near 28N131W maintains fairly tranquil weather conditions across the remainder of the basin, outside of the deep tropics. Moderate to occasionally fresh NE winds are found from 08N to 20N and W of 130W, along with seas of 4-6 ft. Gentle to locally fresh W-SW winds are noted south of the westerly flow over the eastern portion of the basin, especially from 06N to 14N and E of 118W. Seas in this region are 6-8 ft. In the rest of the eastern tropical Pacific, moderate or weaker winds and seas of 5-7 ft prevail. For the forecast, east of 110W winds and seas will diminish from 05N to the monsoon trough along roughly 10N through Sat night. Looking ahead, SW winds will surge again in this area Sun through early next week, with seas building again to 8 ft in SW swell. Farther west, the subtropical ridge will build by late Sun, allowing trade winds to increase slightly farther south into the tropics. $$ Delgado