000 AXPZ20 KNHC 060407 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Mon Feb 6 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 0000 UTC surface analysis and satellite imagery through 0240 UTC. ...SPECIAL FEATURES... Pacific Significant Seas: Strong high pressure across the NE Pacific is building across the Pacific waters east of 125W tonight, behind of cold front that has moved across Baja California Norte and the extreme northern Gulf of California. Strong northerly winds have begun to spread across the near and offshore waters of Baja California northward of 26N, and will increase to 20-30 kt overnight through Mon and spread southward to the waters offshore of Cabo San Lazaro. Seas will build during this time to 8-14 ft, with peak seas of 12-14 ft prevailing across the waters of Baja Norte north of 27N Mon morning through Mon evening. Winds and seas will then begin to diminish Mon night through Tue night as high pressure weakens. Additionally, the pressure gradient along the weakening frontal zone will induce a band of strong ENE winds between 16N and 24N to the W of 120W tonight through Tue night. NW swell generated behind the front will combine with wind waves in this region to produce an area of 10-12 ft seas from 16N to 24N to the W of 125W beginning Mon and persisting through Wed. Please read the latest High Seas Forecast at https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml for more information. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A surface trough extends from near 09N75W to 03N87W. The ITCZ extends from 03.5N90W to 03N130W to beyond 04.5N140W. No significant convection observed. OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Strong northerly winds to 30 kt persist across the Gulf of Tehuantepec region to 14.5N tonight as high pressure in the Gulf of Mexico continues to shift eastward and weaken. Seas of 8-10 ft previously generated by this event will continue to affect the SW adjacent waters as far 110W and southeastward across the offshore waters of Guatemala and El Salvador through midnight, before quickly diminishing. Afterward, winds in the Tehuantepec region will remain strong through Mon afternoon. A cold front has moved across Baja Norte and the extreme northern waters of the Gulf of California this evening, extending from 32N113W to 29.5N115W, then continuing well offshore to near 22.5N130W. Strong high pressure behind the front is building into the region this evening, producing strong northerly winds across the Baja waters N of 26N, where seas have built to 8 ft. Winds and seas will increase across the Baja waters during the next 24 hours. See the Special Features section above for more details. In the Gulf of California, winds remain light to gentle with seas to 3 ft. Moderate northerly winds remain at the entrance of the gulf extending to the Jalisco offshore waters. Light to gentle winds are elsewhere with seas 5 to 7 ft in mixed NE and NW swell. For the forecast, the cold front will move SE and become ill defined over the next 24 hours, with increasing winds to 20-30 kt and seas 8-14 ft expected across the Baja waters. Strong northerly winds will commence in the northern Gulf of California waters just prior to sunrise Mon and spread southward to the entrance to the Gulf by late mon Night, then persist through Thu. Seas during peak winds are forecast to 9 ft across the southern Gulf. The next gap wind event in Tehuantepec is forecast to start Thu. OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to strong NE winds are offshore of Nicaragua, and the Gulf of Papagayo region and extend to 90W, where seas of 7-9 ft prevail. N-NE winds have increase to fresh to locally strong in the Gulf of Panama, reaching beyond the Azuero Peninsula to 06N, and producing seas of 5-6 ft. Light to gentle variable winds are elsewhere, along with 4-6 ft seas primarily in SW swell. For the forecast, fresh to strong NE to E winds across the Gulf of Papagayo region will prevail through Thu, reaching near gale- force at night, and producing periods of 7-10 ft seas. N to NE swell generated by a Gulf of Tehuantepec gap wind event will continue to propagate through the Guatemala and El Salvador offshore waters through early tonight. Fresh to strong N-NE winds will pulse in the Gulf of Panama, mainly at night, through Mon night. Moderate winds will then dominate the Panama region through Thu. REMAINDER OF THE AREA... A cold front has moved SE through the evening hours, and extends from Baja California Norte to near 22.22.5N130W. 1034 mb high pressure north of the front near 35N136W is tightening the pressure gradient behind the front. Fresh to strong NE to E winds and seas of 8-11 ft follow this front W of 120W. The pressure gradient between the associated surface ridge and lower pressure along the ITCZ support an expanding zone of fresh to strong trades N of the ITCZ to the front and W of 120W. Seas are 7 to 11 ft across this area in mixed NW and ENE swell. For the forecast, the cold front will move SSE and gradually dissipate through Mon. Strong high pressure will build in the wake of the front with fresh to strong trades covering most of the waters west of 120W this evening through Mon evening. Seas will build to 10-12 ft near the dissipating frontal zone W of 125W Mon through Tue night. See the Special Features section above for details. NW swell of 8 ft or greater associated with the front will spread SE across the northern waters tonight through Wed, aided by the fresh to strong trades. $$ Stripling