Tropical Weather Discussion

Full Alert Message

Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Fri Jun 12 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 1430 UTC. ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... The monsoon trough extends from 10N85W to 17N99W to 08N120W to 09N140W. Scattered moderate and isolated strong convection is noted from 03N to 15N between 89W and 100W, and from 01N to 10N between 110W and 140W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A weak pressure gradient prevails across the area. With the weak pressure gradient, light to gentle winds prevail over the open waters off Mexico. Gentle to locally moderate winds are in the Gulf of California as well as off Cabo San Lucas. Seas are in the 5-7 ft range over the open waters off Mexico, and 3 ft or less in the Gulf of California. For the forecast, light to gentle winds will prevail across the waters of Baja California. Gentle to moderate, locally fresh, SW to S winds are expected inside the Gulf of California and near the tip of Baja California Sur. Gentle to locally moderate NW to W winds will dominate the waters between Cabo Corrientes and Tehunatepec through Fri, then weaken into the weekend. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Gentle to moderate SE winds prevail in the Gulf of Papagayo and Gulf of Panama. Light to gentle variable winds are found elsewhere. Seas are in the 5-7 ft range between the Galapagos Islands and Colombia, reaching 8 ft south of the Galapagos Islands. Elsewhere, seas are in the 4-6 ft range. For the forecast, gentle to moderate winds and moderate seas will prevail across the offshore waters into the weekend, except locally rough seas in new southerly swell near the Galapagos Islands today. Winds may pulse to moderate to locally fresh in diurnal offshore flow in the immediate Gulf of Papagayo and near the Gulf of Guayaquil during the upcoming weekend into early next week. ...REMAINDER OF THE AREA... A ridge of high pressure enters the NW waters near 30N131W and extends SE to near 21N133W. Broad troughing prevails east of 133W. The pressure gradient between the area of high pressure, and broad troughing is supporting moderate to fresh winds N of 28N and W of 130W. Gentle to moderate winds are N of the monsoon trough to near 13N and W of 128W. Light to gentle winds are elsewhere N of the monsoon trough. Moderate to fresh winds are S of the monsoon trough and W of 125W, and gentle to moderate elsewhere S of the monsoon trough. Northerly swell is bringing rough seas over the waters N of 28N between 128W and 135W. Mainly moderate seas are found elsewhere, locally rough south of the equator. For the forecast, the pressure gradient will loosen W of the elongated troughing, with winds diminishing there slightly through today. Winds will then be moderate or weaker across the entire open waters, except at least moderate to fresh near transient embedded low pressure areas along western portion of the monsoon trough. Northerly swells mixed with the longer period southerly swells with seas of 7-9 ft will linger across the N-central waters through tonight before decaying. Otherwise, moderate seas will dominate the open waters, locally rough in the S-central waters through Sat, as well as near any of the embedded lows within the monsoon trough.