553
AXPZ20 KNHC 170733
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE MAR 17 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
0730 UTC.
..SPECIAL FEATURES
GULF OF TEHUANTEPEC GALE WARNING: THE PRESSURE GRADIENT BETWEEN
HIGH PRESSURE BUILDING ACROSS EASTERN MEXICO AND THE EQUATORIAL
TROUGH IS SUPPORTING GALE FORCE GAP WINDS IN THE TEHUANTEPEC
REGION, WITH SEAS PEAKING NEAR 11 FT. GALE FORCE WINDS WILL
CONTINUE THROUGH TONIGHT BEFORE DIMINISHING EARLY WEDNESDAY.
NEAR- GALE FORCE GAP WINDS AND ROUGH SEAS MAY PULSE ACROSS THE
TEHUANTEPEC REGION THU AND FRI.
PLEASE READ THE LATEST HIGH SEAS FORECAST ISSUED BY THE NATIONAL
HURRICANE CENTER AT WEBSITE -
HTTPS://WWW.NHC.NOAA.GOV/TEXT/MIAHSFEP2.SHTML FOR MORE
INFORMATION.
..INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH
A SURFACE TROUGH EXTENDS FROM 08N78W TO 04N93W. THE ITCZ EXTENDS
FROM 04N93W TO 00N108W TO BEYOND 00N140W. SCATTERED MODERATE
CONVECTION IS NOTED S OF 05N BETWEEN 90W AND 105W.
..OFFSHORE WATERS WITHIN 250 NM OF MEXICO
PLEASE SEE SPECIAL FEATURES ABOVE FOR MORE ON A GALE WARNING IN
THE GULF OF TEHUANTEPEC.
ASIDE FROM THE GULF OF TEHUANTEPEC, A WEAK PRESSURE GRADIENT IS
GENERATING LIGHT TO GENTLE WINDS ACROSS MUCH OF THE FORECAST
AREA, EXCEPT LOCALLY MODERATE WINDS OFF CABO SAN LUCAS AND CABO
CORRIENTES. MODERATE SEAS PREVAIL OVER THE OPEN WATERS, WITH
SLIGHT SEAS IN THE GULF OF CALIFORNIA.
FOR THE FORECAST ASIDE FROM THE GULF OF TEHUANTEPEC GALE WARNING,
A WEAK PRESSURE PATTERN OVER THE REGION WILL MAINTAIN GENTLE TO
MODERATE BREEZES AND AND MODERATE SEAS OVER THE OPEN WATERS OFF
MEXICO, WITH SLIGHT TO MODERATE SEAS IN THE GULF OF CALIFORNIA.
....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA,
AND WITHIN 750 NM OF ECUADOR...
LIGHT TO GENTLE WINDS, AND MODERATE SEAS IN THE 4-6 FT RANGE,
PREVAIL ACROSS THE DISCUSSION WATERS.
FOR THE FORECAST, LARGE NE SWELL GENERATED BY THE GALE FORCE GAP
WIND EVENT IN THE GULF OF TEHUANTEPEC WILL IMPACT THE OFFSHORE
WATERS OF GUATEMALA THROUGH LATE WED. GENTLE BREEZES AND MODERATE
SEAS WILL PREVAIL ELSEWHERE THROUGH LATE IN THE WEEK.
..REMAINDER OF THE AREA
A WEAK PRESSURE GRADIENT ACROSS THE AREA IS SUPPORTING MOSTLY
GENTLE TO MODERATE WINDS ACROSS THE REGION. MODERATE WAVE
HEIGHTS IN THE 4-6 FT RANGE PREVAIL.
FOR THE FORECAST, LARGE N TO NE SWELL GENERATED FROM THE UPCOMING
GULF OF TEHUANTEPEC GALE FORCE GAP WIND EVENT WILL BRIEFLY BRING
ROUGH SEAS MAINLY FROM 08N TO 12N AND EAST OF 100W TONIGHT AND
WEDNESDAY. OTHERWISE, MODERATE OR WEAKER WINDS AND MODERATE SEAS
WILL PREVAIL ACROSS THE REGION THROUGH THE LATTER PART OF THE
WEEK.
AL
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