Tropical Pacific

• NHC Eastern Pacific Tropical Weather Discussion

  000
  AXPZ20 KNHC 150828
  TWDEP
  
  Tropical Weather Discussion
  NWS National Hurricane Center Miami FL
  1005 UTC Wed Apr 15 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 0600 UTC surface analysis and satellite imagery through
  0800 UTC.
  
  ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
  
  A surface trough extends from 10N85W to 03.5N98W to 04.5N104W to
  03.5N120W. The ITCZ extends from 03.5N123W to 05N134W to beyond
  04.5N140W. Southern hemispheric ITCZ extends from 02S113W to
  to beyond 02.5S120W. Numerous moderate to strong convection is
  noted from 02N to 06.5N between 85W and 101W. Scattered moderate
  isolated strong convection is noted S of 02N between 86W and
  98W, and from 02.5N to 10N between 111W and 140W.
  
  ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO...
  
  High pressure continues to build gradually southward across the
  Baja California waters tonight, as a weak cold front has
  dissipated across central Baja and the central Gulf of
  California this past afternoon. This current pressure pattern is
  producing moderate to fresh NW to N winds across the Baja waters
  becoming moderate N to NE winds from 21N southward across the
  Revillagigedo islands. Seas across these offshore waters are 6
  to 7 ft in NW swell, except to 8 ft near Punta Eugenia and
  across Bahia de Sebastian Vizcaino, where fresh winds have
  prevailed since this afternoon. Moderate to locally fresh N-NW
  prevail across the Gulf of California, and extend southward to
  offshore of Cabo Corrientes. Seas are 3 to 5 ft across these
  waters. However, wind have become light and variable across
  northern portions of the Gulf since this evening. Gentle to
  moderate NW to W winds prevail across the remaining waters
  between Cabo Corrientes and Puerto Angel, where seas are 4 to 5
  ft in SW swell. Fresh N gap winds are across the waters inside
  the Gulf of Tehuantepec, where seas are 5 to 6 ft.
  
  For the forecast, moderate to fresh NW winds will prevail across
  the waters on both sides of the Baja California Peninsula tonight
  as high pressure builds in from the North Pacific. This ridging
  will then dominate the waters through the week and maintain
  generally moderate winds. New NW swell will propagate into Baja
  waters late Thu and produce rough seas across the outer waters of
  Baja Norte into early Sat. Between Baja Sur and Puerto Angel,
  winds will be moderate or weaker with moderate seas through Fri.
  Fresh northerly gap winds are expected across the Tehuantepec
  through this morning before winds there become variable
  throughout the remainder of the week. Looking ahead, high
  pressure will weaken across the region Sat leading to diminishing
  winds and seas through the weekend.
  
  ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
  AND WITHIN 750 NM OF ECUADOR...
  
  Overnight satellite scatterometer data showed fresh to strong NE
  to E gap winds across the Papagayo region, extending northward
  across the waters of northern Nicaragua, and downwind to near
  90W. These winds were producing seas 6 to 8 ft. Moderate to
  locally fresh N to NE winds and moderate seas to 6 ft prevail in
  the Gulf of Panama and extend beyond the Azuero Peninsula to near
  04.5N. Light to gentle winds and moderate seas in S-SW swell
  dominate the remainder of the offshore forecast waters. Scattered
  moderate to strong convection remains active S of 06N, to the N
  and NE of the Galapagos Islands. Isolated showers dot the near
  and offshore waters of Costa Rica and are widely scattered
  between SW Colombia and the Galapagos Islands.
  
  For the forecast, broad high pressure will continue N of the
  area into Wed night before gradually weakening through the end
  of the week. This will maintain fresh gap winds pulsing to strong
  during the nighttime and early morning hours across the Papagayo
  region to near 90W through Wed night, then yield moderate winds
  pulsing to fresh each night into the weekend. In the Gulf of
  Panama, moderate northerly winds will pulse to fresh tonight and
  Wed night, then will diminish slightly through the rest of the
  week. Light to gentle winds and moderate seas will prevail
  elsewhere. Active convection occurring N of the Galapagos tonight
  will gradually shift westward and out of the area through Fri
  night.
  
  ...REMAINDER OF THE AREA...
  
  1026 mb high pressure is centered N of the area near 34N132W and
  extends a ridge southward across the region W of 108W. The
  pressure gradient between the ridge and lower pressure in the
  vicinity of the ITCZ supports moderate to fresh trade winds south
  of 16N between 100W and 110W, and moderate to fresh NE to E
  winds south of 25N and west of 110W. Seas are generally 5 to 8
  ft in mixed swell across the area, except less than 5 ft across
  the far NW waters near the high pressure center. Scattered to
  locally numerous convection has become more active along and N of
  the ITCZ and trough between 88W and 100W, and between 120W and
  130W, and is producing areas of strong and gusty winds, and
  potentially higher seas.
  
  High pressure just N of the area will shift southeastward to
  near 33N through Wed, and strengthen the pressure gradient
  modestly across the local area tonight through Thu. Cross-
  equatorial swell will raise seas along the equator and E of 120W
  to 7 to 8 ft through Wed evening. Moderate to fresh winds are
  expected in the trade wind zone through Fri. The high pressure
  will weaken just N of the area on Sat to produce diminishing
  winds and seas through Sun, before a new cold front enters the NW
  waters late Sun.
  
  $$
  Stripling