000 AXPZ20 KNHC 021518 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Tue May 2 2023 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 1200 UTC surface analysis and satellite imagery through 1500 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 09N79W to 09N84W to 06N93W to 06N106W. The ITCZ continues from 06N106W to 04.5N133W to beyond 03N140W. Scattered moderate convection is observed from 09.5N to 13.5N between 85W and 92W, from 04N to 10N between 91W and 103W, and from 05N to 09N between 108W and 119W ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weakening surface trough situated over the northern Gulf of California is moving slowly eastward. NW swell prevails over the waters west of Baja California Norte, with combined seas in the 7 to 9 ft range. Winds have diminished to moderate over the northern Gulf of California near the trough. Moderate to fresh W to NW winds may be funneling off the coast of Los Cabos. Gentle to moderate breezes are noted elsewhere with 3 to 5 ft combined seas in open waters. Areas of smoke from agricultural fires may persist over offshore waters southeast of Cabo Corrientes to the Guatemala border. For the forecast, NW swell will continue to affect the waters north of Cabo San Lazaro through this afternoon before subsiding tonight. The lingering trough will also support fresh SW gap winds over the northern Gulf of California tonight and strong winds there Wed night. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Moderate to fresh NE to E winds are in the Gulf of Papagayo and downstream to 89W with combined seas of 4 to 5 ft. Elsewhere, winds remain light to gentle with combined seas of 2 to 4 ft, except across the Ecuador and Galapagos Islands offshore waters where seas are 5 to 6 ft due to long period SW swell approaching the area. Otherwise, low visibility due to agricultural fires is likely from the Guatemala to Nicaragua offshore waters. For the forecast, high pressure building well north of the area will support pulses of fresh to occasionally strong gap winds across the Gulf of Papagayo and the coast of Nicaragua mainly at night through the week. Gentle to moderate breezes and moderate combined seas will persist elsewhere through late week. ...REMAINDER OF THE AREA... High pressure spreads across the area north of 20N and is supporting moderate to fresh N to NE winds north of 05N and west of 125W. Combined seas of 7 to 9 ft are moving through most of the region north of 20N. Gentle to moderate winds and 4 to 6 ft combined seas are noted elsewhere north of the Equator. South of the Equator to 3.4S, seas are 6 to 8 ft in S swell. For the forecast, fresh northerly winds and NW swell will persist north of 20N through tonight. The northerly swell will propagate into the deep tropics by late Wed, reinforcing the seas west of 125W. Winds and seas will diminish north of 20N by Thu, as the high pressure will become established farther north of the area, but this pattern will continue to support moderate to fresh trade winds and 6 to 8 ft seas over the tropical Pacific west of 125W. Looking ahead, a weak cold front will move into the waters north of 20N and west of 120W Fri into Sat. $$ Hagen