Tropical Weather Discussion
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Issued by NWS
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231 AXPZ20 KNHC 191604 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sun Jul 19 2026 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 1545 UTC. ...SPECIAL FEATURES... Tropical Depression Six-E: centered near 12.4N 111.7W at 19/1500 UTC, moving west-northwest at 12 kt. Estimated minimum central pressure is 1006 mb. Maximum sustained wind speed is 30 kt with gusts to 40 kt. Peak seas are currently around 11 ft or just less than 3.5 m. The tropical cyclone is gradually becoming organized. The overall cloud pattern appears rather elongated from southwest to northeast. Satellite imagery shows numerous moderate to strong convection within 90 nm of the center in the NE semicircle and within 180 nm of the center in the SW semicircle. Numerous moderate to isolated strong convection is seen from 06N to 09N between 111W-117W. Scattered moderate to isolated strong convection is from 13N to 16N between 108W- 112W. The depression is expected to maintain is current motion for the next couple of days. Steady to rapid strengthening is forecast during the next few days. The depression is forecast to become a tropical storm later today, then become a hurricane by Mon night or Tue. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml and the latest Six-E NHC Forecast/Advisory and Public Advisory at www.hurricanes.gov for more details. Tropical Storm Elida: centered near 22.2N 125.3W at 19/1500 UTC, moving north-northwest at 8 kt. Estimated minimum central pressure is 996 mb. Maximum sustained wind speed is 50 kt with gusts to 60 kt. Peak seas are currently around 23 ft or 7 m. Satellite imagery shows numerous moderate to isolated strong convection within 60 nm of the center in the SW and W quadrants. Numerous moderate convection is within 120 nm of the center in the E semicircle, and also from 24N to 25N between 123W and 126W. Elida is expected to increase in forward speed as it turns further northward over the next couple of days. Steady weakening is expected during the next couple of days, and the cyclone is likely to dissipate by late Wed. Swells generated by Elida will affect portions of the west coast of the Baja California Peninsula and southern California through early next week. These swells will likely result in life-threatening surf and rip current conditions. Please consult products from your local weather office. Please read the latest HIGH SEAS FORECAST issued by the National Hurricane Center at website - https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml and the latest Elida NHC Forecast/Advisory and Public Advisory at www.hurricanes.gov for more details. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough axis extends from a 1009 mb low along the northwest coast of Colombia to the Colombia/Panama border, and to 09N82W to 09N91W to Tropical Depression Six-E to 10N127W and to beyond 09N140W. Numerous moderate to strong convection is within 240 nm south of the trough between 129W-140W. Scattered moderate to isolated strong convection is within 120 nm south of the trough from 04N to 07N between 87W-91W, and within 180 nm south of the trough between 123W-127W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... Please refer to the Special Features section for details on Tropical Depression Six-E, centered about 640 nautical miles south of the southern tip of Baja California, and on Tropical Storm Elida, centered about 850 nautical miles west of the southern tip of Baja California. Fresh to strong north to northeast winds are in the Gulf of Tehuantepec as noted in overnight scatterometer satellite data passes. Otherwise, rather broad high pressure is over the offshore waters, with moderate or weaker winds. Outer associated rough seas from Elida are near the far outer offshore waters boundary of Baja California and are finally pulling away. Moderate seas dominate elsewhere, with rough seas associated with Tropical Depression Six-E just beyond the outer offshore waters of southwestern Mexico. Seas are slight in the Gulf of California, while winds are moderate to locally fresh in the northern portion. Very active convection is present near the monsoon trough across much of the offshore waters between 101W and 112W. This activity reaches to along the coast of Guerrero. It may contain locally higher winds and seas possible near any thunderstorms. For the forecast, seas generated by Elida will finally subside to less than 8 ft by this afternoon. Meanwhile, Tropical Depression Six-E will strengthen to a tropical storm near 12.8N 113.2W this evening, move to 13.7N 115.1W Mon morning, to near 14.9N 116.8W Mon evening, then strengthen to a hurricane near 15.9N 118.4W Tue morning, and mover to near 16.5N 120.0W Tue evening, and to near 16.9N 121.3W Wed morning. Six-E will change little in intensity as it moves to near 17.5N 125.2W early Thu. Associated increasing winds and building seas are forecast to impact portions of the waters well offshore southwest Mexico to the Revillagigedo Islands into the early part of the week. Fresh to strong northerly winds will continue to pulse in the Gulf of Tehuantepec through the next several days, with locally rough seas at times. In the Gulf of California, gentle to moderate winds and slight seas will prevail, except for locally fresh winds in the northern Gulf at times. Winds may freshen nearshore Baja California Norte midweek as the gradient temporarily tightens there. Looking ahead, low pressure may develop well south of Mexico during the middle to latter part of next week and increasing winds and seas may impact portions of the outer offshore waters of southern and southwestern Mexico by the end of next week. ...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh to strong northeast to east winds continue across the Papagayo region and downwind to near 09N92W. Moderate to fresh northeast winds are near the Gulf of Fonseca. Seas are 6 to 9 ft downstream of Papagayo. Moderate to locally fresh N to NE winds are in the Gulf of Panama. Moderate or weaker winds and moderate seas, primarily in south to southwest swell, dominate the remainder of the offshore waters, except slight seas in the immediate lee of the Galapagos Islands and near shore western Colombia. Very active convection is present near the monsoon trough across much of the offshore waters, with locally higher winds and seas possible near thunderstorms. For the forecast, fresh to strong northeast to winds and moderate to rough seas will persist across the Papagayo region through early next week, with moderate to fresh NE winds pulsing near the Gulf of Fonseca. Gentle to moderate N winds are expected in the Gulf of Panama with slight to moderate seas. Moderate or weaker winds and moderate seas in southwest well are expected elsewhere, except in the immediate lee of the Galapagos Islands and nearshore western Colombia where slight seas are forecast. Looking ahead, low pressure is forecast to develop well south of Mexico during the middle to latter part of the upcoming week, and increasing winds and seas may impact portions of the outer offshore waters of Guatemala and El Salvador. ...REMAINDER OF THE AREA... Please refer to the Special Features section for details on Tropical Depression Six-E, centered about 640 nautical miles south of the southern tip of Baja California, and on Tropical Storm Elida, centered about 850 nautical miles west of the southern tip of Baja California. Both of the above systems dominate the open waters, as well as another area of disturbed with and associated fresh to strong winds and locally rough seas near 08N97W. Otherwise, broad ridging prevails both west and east of Elida. Winds are mainly moderate or weaker across the remainder of the open waters along with moderate seas, except moderate to locally fresh in the south-central waters south of 04N between 105W and 125W, along with 7 to 9 ft seas there. Very active convection is present near the monsoon trough, concentrated near all three significant features, with locally higher winds and seas possible. For the forecast, Tropical Storm Elida will move to near 23.7N 126.0W this evening, to near 26.0N 126.8W Mon morning, to near 28.6N 127.4W Mon evening, weaken to a remnant low near 31.5N 127.4W Tue morning and dissipate early Thu. Six-E will change little in intensity as it moves to 17.5N 125.2W early Thu. Associated increasing winds and building seas are forecast to impact portions of the waters well offshore southwest Mexico. Moderate to fresh winds and locally rough seas over the south- central waters will gradually spread northward in the wake of Elida and the wake of Six-E into the early part of the week. Little change in marine conditions is expected across the remainder of the open waters. Looking ahead, a broad area of low pressure is forecast to develop well south of Mexico during the middle to latter part of the week. Environmental conditions appear conducive for development of the system thereafter, and a tropical depression could form while it moves westward to west-northwestward across the eastern and central portions of the eastern Pacific. $$ Aguirre