--------------------------------------------------------------------------- TROPICAL WEATHER DISCUSSION (EASTERN PACIFIC AREA) MESSAGES T1T2: AX A1A2: PZ Date: 2026-02-21 --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC210409_C_KWBC_20260221040937_29294990-8356-TWDEP.txt ****0000005519**** AXPZ20 KNHC 210409 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 0405 UTC Sat Feb 21 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 0000 UTC surface analysis and satellite imagery through 0350 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: The next gap wind event across the Tehunatepec region is expected by Sun morning as a ridge builds across the eastern slopes of the Sierra Madre Mountains in Mexico, behind a cold front that will move across the Gulf of America. Winds are forecast to suddenly increase to 35 to 40 kt, with seas building to 9 to 12 ft on Sun. Winds will further increase to storm force Mon morning, with seas building to 27 ft. Storm force winds are forecast to continue through Mon night. A Storm Warning will be issued later tonight/early Sat morning. Large seas generated from this strong gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far west as 105W by Mon night. Marine interests transiting across or in the Gulf of Tehuantepec Sun evening through Tue should be aware of this upcoming gap wind event, and take the necessary action to avoid this hazardous marine conditions over the affected waters. Winds are forecast to diminish below gale force early on Wed. Please read the latest NWS High Seas issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough extends from 09N85W to 01N107W. The ITCZ extends mainly along the Equator from 01N107W to 00N125W to 00N140W. Scattered moderate convection is noted from 01N to 10N E of 87W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A Gale Warning is now in effect for the Gulf of Tehuantepec. Please, see the Special Features section for more details. Moderate to locally fresh NW winds and moderate to rough seas in NW swell are noted across the offshore forecast waters of Baja California. In the Gulf of California, moderate to fresh NW winds are ongoing. Locally moderate or weaker winds and moderate seas dominate the remainder of the Mexican offshore waters. For the forecast, the next gap wind event across the Tehunatepec region is expected by Sun morning as a ridge builds across the eastern slopes of the Sierra Madre Mountains in Mexico, behind a cold front that will move across the Gulf of America. Winds are forecast to suddenly increase to 35 to 40 kt, with seas building to 9 to 12 ft by Sun evening. Winds will further increase to storm force Mon morning, with seas building to 27 ft. Storm force winds are forecast to continue through Mon night. Large seas generated from this strong gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far west as 105W by Mon night. Marine interests transiting across or in the Gulf of Tehuantepec Sun evening through Tue should be aware of this upcoming gap wind event, and take the necessary action to avoid this hazardous marine conditions over the affected waters. Winds are forecast to diminish below gale force early on Wed. Otherwise, high pressure over the Great Basin will induce fresh to strong NW winds across the entire Gulf of California Sat night into Mon. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE winds continue over the Papagayo region with seas of 4 to 5 ft. Elsewhere, light to gentle with seas 3 to 4 ft are observed. For the forecast, high pressure over Central America will support fresh to locally strong NE to E gap winds over the Papagayo region through Sun night. These winds are forecast to strengthen to 30 kt on Mon with seas building to 10 ft. Minimal gale conditions could be possible Tue morning through Wed morning. Looking ahead, seas generated in the Tehuantepec region are forecast to propagate across the offshore waters of Guatemala and El Salvador Sun night through Tue night with seas building to around 15 ft. ...REMAINDER OF THE AREA... A surface ridge extends SE from N of the Hawaiian Islands to near the Revillagigedo Islands. The pressure gradient between the ridge and lower pressure in the vicinity of the ITCZ supports an area of fresh trades from 17N to 21N W of 135W. Seas are 8 to 11 ft within these winds. Long period NW swell dominates most of the forecast waters N of 07N W of 115W. Elsewhere, winds are moderate or weaker and seas are 4 to 7 ft. For the forecast, a cold front will reach 30N140W by Sat evening, then move slowly across the NW waters, extending from 30N135W to 26N140W by Mon morning. Fresh to strong southerly winds and moderate to rough seas are expected ahead of the front late Sun through late Mon. A new set of long period NW swell will follow the front, building seas to 13 or 14 ft over the NW corner of the forecast region on Mon. At the same time, high pressure will dominate the waters between the front and Baja California Norte. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC211000_C_KWBC_20260221100038_29294990-8370-TWDEP.txt ****0000005428**** AXPZ20 KNHC 211000 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1005 UTC Sat Feb 21 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 0930 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Gale Warning: The next gap wind event across the Tehunatepec region is expected by Sun morning as a ridge builds across the eastern slopes of the Sierra Madre Mountains in Mexico, behind a cold front that will move across the Gulf of America. Winds are forecast to suddenly increase to 35 to 40 kt, with seas building to 12 ft by Sun evening. Winds will further increase to storm force Mon morning, with seas building to 25 ft. Storm force winds are forecast to continue through Mon night, however winds will diminish below gale-force early on Wed. Large seas generated from this strong gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far west as 110W by Tue evening. A Storm Warning will be issued later today. Marine interests transiting across or in the Gulf of Tehuantepec Sun evening through Tue should be aware of this upcoming gap wind event, and take the necessary action to avoid this hazardous marine conditions over the affected waters. Please read the latest NWS High Seas issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough extends from 10N85W to 01N100W. A second trough extends from 07N77W to 00N88W. The ITCZ extends mainly along the Equator from 00N103W to 02S120W to 01S140W. Scattered moderate convection is noted from 03S to 10N E of 90W. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A Gale Warning is in effect for the Gulf of Tehuantepec. Please, see the Special Features section for more details. Surface ridging extending from a 1021 mb high near 31N123W covers the Baja California offshore waters and continue to support moderate to locally fresh NW winds along with moderate seas in NW swell, except for decaying rough seas N of Punta Eugenia. In the Gulf of California, winds are moderate to fresh from the NW and seas are slight to 3 ft. Light to gentle winds and slight to moderate seas are elsewhere. For the forecast, the next gap wind event across the Tehunatepec region is expected by Sun morning as a ridge builds across the eastern slopes of the Sierra Madre Mountains in Mexico, behind a cold front that will move across the Gulf of America. Winds are forecast to suddenly increase to 35 to 40 kt, with seas building to 12 ft by Sun evening. Winds will further increase to storm force Mon morning, with seas building to 25 ft. Storm force winds are forecast to continue through Mon night, however winds will diminish below gale-force early on Wed. Large seas generated from this strong gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far west as 110W by Tue evening. Otherwise, high pressure over the Great Basin will induce fresh to strong NW winds across the entire Gulf of California this afternoon through Mon morning. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE winds continue over the Papagayo region with seas of 4 to 5 ft. Elsewhere, light to gentle winds and slight to moderate seas are observed. For the forecast, high pressure over Central America will support fresh to strong NE to E gap winds over the Papagayo region through Wed night, however increasing to near gale-force speeds from Mon morning through Wed. Building seas may reach 11 ft on Tue with this gap wind event. Looking ahead, seas generated in the Tehuantepec region are forecast to propagate across the offshore waters of Guatemala and El Salvador Sun night through Tue night with seas building to around 19 ft. ...REMAINDER OF THE AREA... Surface ridging extending from a 1021 mb high near 31N123W covers the subtropical Pacific waters, and continues to support an area of fresh trades from 08N to 19N W of 130W as indicated by recent scatterometer data. SOFAR buoys show decaying northerly swell still supports rough seas to 8 ft over the tropical waters W of 115W and over the subtropical waters between 115W and 130W. Elsewhere, winds are moderate or weaker and seas moderate to 7 ft. For the forecast, a cold front will reach 30N140W by this evening, then move slowly across the NW waters, extending from 30N135W to 26N140W by Mon morning. Fresh to strong southerly winds and moderate to rough seas are expected ahead of the front late Sun through late Mon. A new set of long period NW swell will follow the front, building seas to 13 or 14 ft over the NW corner of the forecast region by Mon morning. At the same time, a surface ridge will dominate the waters between the front and Baja California Norte. $$ Ramos ########################### END OF MESSAGE SET ############################ --------------------------------------------------------------------------- Message File: T_AXPZ20KNHC211548_C_KWBC_20260221154932_16515500-8012-TWDEP.txt ****0000005865**** AXPZ20 KNHC 211548 TWDEP Tropical Weather Discussion NWS National Hurricane Center Miami FL 1605 UTC Sat Feb 21 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 1500 UTC. ...SPECIAL FEATURES... Gulf of Tehuantepec Storm Warning: The next gap wind event across the Tehunatepec region is expected by Sun morning as a ridge builds across the eastern slopes of the Sierra Madre Mountains in Mexico, behind a cold front moving across the Gulf of America. Wind are forecast to suddenly increase to 35 to 40 kt, with seas building to 9 to 12 ft on Sun. Then, winds will further increase to near storm force by Sun evening, with seas building to 12 to 18 ft. Gusty winds exceeding 50 kt are possible Sun evening into Mon. Then, winds are forecast to strengthen to storm force by Mon morning with seas building to 20 to 24 ft. Storm conditions and very rough seas are expected to persist through Mon night, then winds will diminish to strong gale force on Tue. Large seas generated from this strong gap wind event will spread well away from the Tehuantepec area, with seas 8 ft or greater reaching as far west as 105W by Mon night. Marine interests transiting across or in the Gulf of Tehuantepec Sun through Tue should be aware of this upcoming gap wind event, and take the necessary action to avoid this hazardous marine conditions over the affected waters. Winds are forecast to diminish below gale force early on Wed. Please read the latest NWS High Seas issued by the National Hurricane Center at website: https://www.nhc.noaa.gov/text/MIAHSFEP2.shtml ...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... A trough extends from 09N84W to 02N102W. The ITCZ continues from 02N102W to 01N120W to 04N140W. A second surface trough is analyzed from a 1009 mb low pressure located over northern Colombia near 10N75W to 01N87W. Scattered moderate convection is noted from the Equator to 08N and E of 90W to the coast of Colombia. ...OFFSHORE WATERS WITHIN 250 NM OF MEXICO... A Storm Warning has been issued for the Gulf of Tehuantepec. Please, see the Special Features section for more details. A ridge extending from a 1021 mb high near 31N122W covers the Baja California offshore waters and continue to support moderate to locally fresh NW winds along with moderate seas in NW swell, except for decaying rough seas N of Punta Eugenia. In the Gulf of California, moderate to fresh NW winds are noted with seas of 2 to 4 ft. Light to gentle winds and slight to moderate seas prevail elsewhere. For the forecast, high pressure over the Great Basin will induce fresh to strong NW winds across the entire Gulf of California tonight into Mon. Looking ahead, a vigorous cold front pushing across the Gulf of America will support a storm-force gap wind event across the Tehuantepec region on Mon. Very large seas are will accompany this strong gap wind event, propagating well away from the source region. Please, see the Special Features section for more details. ....OFFSHORE WATERS WITHIN 250 NM OF CENTRAL AMERICA, COLOMBIA, AND WITHIN 750 NM OF ECUADOR... Fresh NE winds continue over the Papagayo region with seas of 4 to 6 ft. Elsewhere, light to gentle winds with seas of 2 to 4 ft are observed. Otherwise, scattered moderate convection persists across the offshore waters N of the Equator and E of 90W. For the forecast, high pressure over Central America will support fresh to locally strong NE to E gap winds over the Papagayo region through Sun night. These winds are forecast to strengthen to 25 to 30 kt on Mon with seas building to 8 to 10 ft. Minimal gale conditions and rough seas could be possible Tue morning through Wed morning. Looking ahead, seas generated in the Tehuantepec region are forecast to propagate across the offshore waters of Guatemala and El Salvador Sun night through Tue night with seas building to 18 to 20 ft across the outer offshore waters. Over the next several days the Pacific coasts of Colombia, Ecuador ans NW Peru are expecting heavy precipitation due to the confluence of the trade winds just W of the region, favoring persisting moist onshore flow that will see lift as the interact with the Andes Mountains. Rainfall amounts of 4 to 6 inches (100 to 150 mm) are possible. ...REMAINDER OF THE AREA... A surface ridge dominates most of the northern forecast waters N of 17N and W of 110W, including the Revillagigedo Islands. The pressure gradient between the ridge and lower pressure in the vicinity of the ITCZ supports an area of moderate to locally fresh trade winds from 10N to 18N W of 115W. Seas are 8 to 10 ft within these winds based on altimeter data. Decaying long period NW swell dominates most of the forecast waters N of 07N W of 115W. Elsewhere, winds are moderate or weaker and seas are 4 to 7 ft. For the forecast, a cold front will reach 30N140W this evening, then move slowly across the NW waters, extending from 30N135W to 26N140W by Mon morning. Fresh to strong southerly winds and moderate to rough seas are expected ahead of the front late Sun through late Mon. A new set of long period NW swell will follow the front, building seas to 13 or 14 ft over the NW corner of the forecast region on Mon. High pressure will dominate the waters between the front and Baja California Norte. $$ GR ########################### END OF MESSAGE SET ############################