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AXPZ20 KNHC 082124
TWDEP

Tropical Weather Discussion
NWS National Hurricane Center Miami FL
2205 UTC Wed May 8 2024

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 1930 UTC.


...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...

The monsoon trough extends from 10.5N76W to 11.5N95W to 12N110W to low pres 1011 mb near 10.5N115W to low pres 1010 mb near 07.5N121.5W to 08N125W. The ITCZ extends from 08N125W to beyond 06N140W. Scattered moderate to strong convection is noted from 05N to 11N E of 88W and extends into the SW Caribbean. Scattered moderate isolated strong convection is noted from 08N to 11.5N between 90W and 105W. Scattered to numerous strong convection is noted from 04N to 11N between 114W and 124W.


...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...

High pressure centered N of the area extends a broad ridge southward across the regional Pacific waters and weakly southeast over the offshore waters of Baja California to the Revillagigedo Islands. Low pressure extends northward along the entire coast of California. The pressure gradient between the high pressure and this area of low pressure is supporting strong to gale-force N to N-NW winds across the near and offshore waters of California, becoming fresh across the far outer waters of Baja California Norte, to the NW of Guadalupe Island. Elsewhere across the Baja waters, gentle to moderate NW to N winds prevail. The winds offshore of California continue to generate NW swell that is moving into the region. Seas across most of the Baja waters are 6 to 7 ft, except 7 to 10 ft N of Punta Eugenia. Inside the Gulf of California, winds are gentle to locally moderate from the NW and W. Seas along the Gulf are 2 to 3 ft, except 4 to 5 ft in SW swell at the entrance of the Gulf. Elsewhere across the S and SW Mexican offshore waters, winds are gentle to moderate from the W to NW, and become onshore across the Gulf of Tehuantepec, while seas remain 5 to 6 ft in SW swell.

For the forecast, the high pressure well N of the local area will shift NE through Thu, then drift W and weaken through the weekend. This will lead to the continuation of moderate NW winds across the Baja Peninsula waters today, with small areas of locally fresh winds developing near the coasts during the afternoon and evening, then become generally gentle to moderate winds Thu through the weekend. NW swell will continue to move into the Baja offshore waters through the week, with seas in excess of 8 ft persisting across the waters north through west of Punta Eugenia through Thu evening, before subsiding. Gentle to locally moderate winds and moderate seas are expected elsewhere across the S and SW Mexican offshore waters through Sun night.


...OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR...

Scattered to numerous showers and thunderstorms prevail across the near and offshore waters N of 04.5N between the Gulf of Panama and NW Costa Rica, and extend into the SW Caribbean. This active weather is occurring about the monsoonal circulation becoming seasonally established across the region, and is producing frequent lightning, strong gusty winds, and moderate to rough seas. Over the remainder Central America offshore waters N of 10N, winds remain light and variable and seas moderate, 4 to 5 ft in S swell. Between the coast of Ecuador and the Galapagos Islands, winds are mainly moderate from the S to SW with 5 to 6 ft seas in S swell.

For the forecast, moderate to locally fresh S to SW winds are expected S of the monsoon trough, roughly along 09N, through Fri, which will feed moisture into the scattered to numerous showers and thunderstorms currently across the area waters. This active weather will shift slowly westward of 90W by Fri afternoon. Light to gentle variable winds will prevail elsewhere along with moderate seas in S swell. Otherwise, new southerly swell entering the region today will maintain seas of 6 to 7 ft S of the Galapagos Islands through Sun, and building briefly to near 8 ft Fri night.


...REMAINDER OF THE AREA...

1036 mb high pressure is centered well offshore of the Oregon coast, and extends a broad ridge southward across the subtropical waters between 110W and 150W. Moderate NW to N winds are north of 25N between 120W and 125W, while gentle to moderate N winds prevail elsewhere N of 20N between 115W and 125W, then become NE to E-NE to the west of 125W. Seas across this area N of 20N are 6-8 ft in NW swell, except 8 to 10 ft north of 28N and E of 130W. S of 20N, between the ridge and the ITCZ and W of 120W, moderate to locally fresh NE to E-NE winds and 6-8 ft seas in NE swell prevail. South of the ITCZ, gentle to moderate SE to E winds are noted with 6 to 8 ft seas in mixed SE and SW swell. Elsewhere, light to gentle variable winds and moderate seas prevail.

For the forecast, moderate trade winds over the western part of the tropical waters will gradually become confined to between the ITCZ and 20N through Sun, as high pressure N of the area gradually weakens. Seas of 6 to 7 ft with small areas to 8 ft are expected across the trade winds zone through Fri, then will subside slightly through Sun. NW swell across the Baja California Norte waters will build through early tonight to produce seas of 8 ft and greater, mainly N of 25W and E of 130W through Thu afternoon, then will subside below 8 ft late Thu night, and to 6 ft or less on Sat.

$$ Stripling

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