000 AXPZ20 KNHC 072105 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 2205 UTC Fri Apr 7 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 1800 UTC surface analysis and satellite imagery through 2055 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from NW Colombia near 07N78W to 07N90W to 03N108W. The ITCZ stretches from 03N108W to 06N125W to beyond 03N140W. Scattered moderate convection is present south of 09N and east of 95W. Similar convection is noted from 04N to 10N and between 110W and 131W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... The subtropical ridge continues well to the west of the Mexican offshore waters. A recent scatterometer satellite pass depict moderate northerly winds in the offshore waters of Baja California. Seas in these waters are 4-6 ft. Light to moderate northerly winds and seas of 2-4 ft are evident in the Gulf of California. Moderate or weaker winds and moderate seas prevail in the remaining offshore waters of Mexico, including the Gulf of Tehuantepec. For the forecast, moderate to locally fresh northerly winds and moderate seas will persist in the offshore waters of Baja California through the weekend and into early next week. Looking ahead, fresh to strong gap winds and building seas are forecast over the Gulf of Tehuantepec Sat into early next week. Seas will peak near 8 ft during the strongest winds. Wind speeds may increase to near gale by the middle of the week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... A timely scatterometer satellite pass confirmed the presence of fresh to strong NE-E winds affecting the Gulf of Papagayo region, including the nearshore waters of Nicaragua, and extending westward to about 93W. Seas in these waters are 4-6 ft. Farther east, moderate to locally fresh northerly winds and seas of 3-5 ft are found in the Gulf of Panama, extending southward to 04N. Elsewhere, light to gentle winds and moderate seas are prevalent. For the forecast, the fresh to strong easterly gap winds in the Gulf of Papagayo will diminish to fresh speeds this afternoon. These winds will pulse back up at night and into the early afternoons through the middle of next week. Gentle to moderate winds will continue elsewhere along with a moderate long-period southerly swell, except in the Gulf of Panama where fresh northerly winds are expected through Tue night. Scattered to numerous showers and thunderstorms are offshore Costa Rica and over the offshore waters between Ecuador and the Galapagos Islands. This activity is expected to continue through Sat. ...REMAINDER OF THE AREA... A 1024 mb high pressure is positioned near 27N135W in the northwest corner of the eastern tropical Pacific. A recent scatterometer satellite pass show moderate to fresh E-NE winds south of 23N to the ITCZ and west of 115W. Wave heights in these waters are 6-9 ft. Moderate to locally fresh SE winds are found south of 03S, along with seas of 6-8 ft. Elsewhere, moderate or weaker winds and moderate seas prevail. For the forecast, moderate to fresh easterly winds will persist south of 25N and west of 115W through the the next several days. Combined seas will gradually subside through the weekend as the northerly swell decays. The western part of a cold front that is presently near 31N135W will approach the northern waters this afternoon into tonight while weakening. No significant impacts to winds and seas is expected with this front. Looking ahead, the aforementioned high pressure will shift eastward Sat through late Sun in response to a cold front that will approach 30N140W late Sun. The front is expected to weaken further early next week as it moves over the north-central and northeast waters and as strong high pressure ridging builds east-southeastward over those same waters. $$ DELGADO