*03:00 UTC (8:00 p.m. PDT August 23) at {{Coord|20.7|-115.8|}} {{Endash}} Tropical Storm Marty reaches peak intensity with winds of {{Convert|45|mph|km/h|abbr=on|round=5|}} and a minimum central pressure of {{Convert|1000|mbar|inHg|abbr=on|}} about {{Convert|410|mi|km|abbr=on|round=5|}} west-southwest of the southern tip of Baja California. <ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2021/ep13/ep132021.public.004.shtml?|title=Tropical Storm Marty Advisory Number 4|website=www.nhc.noaa.gov|last1=Reinhart|first1=Brad|last2=Pasch|first2=Richard|publisher=[[National Hurricane Center]]|location=Miami, Florida|date=August 24, 2021|access-date=August 25, 2021}}</ref>
*03:00 UTC (8:00 p.m. PDT August 23) at {{Coord|20.7|-115.8|}} {{Endash}} Tropical Storm Marty reaches peak intensity with winds of {{Convert|45|mph|km/h|abbr=on|round=5|}} and a minimum central pressure of {{Convert|1002|mbar|inHg|abbr=on|}} about {{Convert|410|mi|km|abbr=on|round=5|}} west-southwest of the southern tip of Baja California. <ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2021/ep13/ep132021.public.004.shtml?|title=Tropical Storm Marty Advisory Number 4|website=www.nhc.noaa.gov|last1=Reinhart|first1=Brad|last2=Pasch|first2=Richard|publisher=[[National Hurricane Center]]|location=Miami, Florida|date=August 24, 2021|access-date=August 25, 2021}}</ref>
*15:00 UTC (8:00 a.m. PDT) at {{Coord|20.6|-118.1|}} {{Endash}} Tropical Storm Marty weakens into a tropical depression about {{Convert|550|mi|km|abbr=on|round=5|}} west-southwest of the southern tip of Baja California. <ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2021/ep13/ep132021.public.006.shtml?|title=Tropical Depression Marty Advisory Number 6|website=www.nhc.noaa.gov|last=Stewart|first=Stacy|publisher=[[National Hurricane Center]]|location=Miami, Florida|date=August 24, 2021|access-date=August 25, 2021}}</ref>
*15:00 UTC (8:00 a.m. PDT) at {{Coord|20.6|-118.1|}} {{Endash}} Tropical Storm Marty weakens into a tropical depression about {{Convert|550|mi|km|abbr=on|round=5|}} west-southwest of the southern tip of Baja California. <ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2021/ep13/ep132021.public.006.shtml?|title=Tropical Depression Marty Advisory Number 6|website=www.nhc.noaa.gov|last=Stewart|first=Stacy|publisher=[[National Hurricane Center]]|location=Miami, Florida|date=August 24, 2021|access-date=August 25, 2021}}</ref>
*21:00 UTC (2:00 p.m. PDT) at {{Coord|20.5|-119.2|}} {{Endash}} Tropical Depression Marty transitions into a post-tropical cyclone about {{Convert|620|mi|km|abbr=on|round=5|}} west-southwest of the southern tip of Bala California. <ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2021/ep13/ep132021.public.007.shtml?|title=Post-Tropical Cyclone Marty Advisory Number 7|website=www.nhc.noaa.gov|last=Stewart|first=Stacy|publisher=[[National Hurricane Center]]|location=Miami, Florida|date=August 24, 2021|access-date=August 25, 2021}}</ref>
*21:00 UTC (2:00 p.m. PDT) at {{Coord|20.5|-119.2|}} {{Endash}} Tropical Depression Marty transitions into a post-tropical cyclone about {{Convert|620|mi|km|abbr=on|round=5|}} west-southwest of the southern tip of Bala California. <ref>{{cite web|url=https://www.nhc.noaa.gov/archive/2021/ep13/ep132021.public.007.shtml?|title=Post-Tropical Cyclone Marty Advisory Number 7|website=www.nhc.noaa.gov|last=Stewart|first=Stacy|publisher=[[National Hurricane Center]]|location=Miami, Florida|date=August 24, 2021|access-date=August 25, 2021}}</ref>
The 2021 Pacific hurricane season is an ongoing event in the annual tropical cyclone season in the North Pacific Ocean. It officially began on May 15 for the Eastern Pacific and on June 1 for the Central Pacific. Both seasons will end on November 30, though storms often develop outside the season boundaries. These dates, adopted by convention, historically describe the period in each year when most Eastern Pacific tropical systems form.[1] However, storm formation is possible at any time of the year, as illustrated in 2021 by the formation of the season's first named storm, Tropical Storm Andres, on May 9.
This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season. It includes information that was not released throughout the season, meaning that data from post-storm reviews by the National Hurricane Center, such as a storm that was not initially warned upon, has been included.
15:00 UTC (8:00 a.m. PDT) at 11°48′N126°00′W / 11.8°N 126.0°W / 11.8; -126.0 – Tropical Storm Carlos reaches peak intensity with winds of 50 mph (80 km/h) and a minimum central pressure of 1,000 mbar (30 inHg) about 1,305 mi (2,100 km) west-southwest of the southern tip of the Baja California Peninsula.[15]
June 14
21:00 UTC (2:00 p.m. PDT) at 10°54′N130°00′W / 10.9°N 130.0°W / 10.9; -130.0 – Tropical Storm Carlos weakens into a tropical depression about 1,560 mi (2,510 km) west-southwest of the southern tip of the Baja California Peninsula.[16]
June 16
15:00 UTC (8:00 a.m. PDT) at 8°36′N135°18′W / 8.6°N 135.3°W / 8.6; -135.3 – Tropical Depression Carlos transitions into a post-tropical cyclone about 1,950 mi (3,140 km) west-southwest of the southern tip of the Baja California Peninsula.[17]
June 18
Track of Tropical Storm Dolores from June 18–20, according to the Saffir-Simpson scale
13:15 UTC (7:15 a.m. MDT) at 14°06′N113°36′W / 14.1°N 113.6°W / 14.1; -113.6 – Tropical Depression Six-E strengthens into Tropical Storm Felicia about 650 mi (1,045 km) south-southwest of the southern tip of Baja California. [30]
July 15
09:00 UTC (2:00 a.m. PDT) at 15°12′N117°36′W / 15.2°N 117.6°W / 15.2; -117.6 – Tropical Storm Felicia strengthens into a Category 1 hurricane about 730 mi (1,175 km) southwest of the southern tip of Baja California. [31]
21:00 UTC (2:00 p.m. PDT) at 15°12′N119°24′W / 15.2°N 119.4°W / 15.2; -119.4 – Hurricane Felicia strengthens into a Category 2 hurricane about 815 mi (1,310 km) southwest of the southern tip of Baja California. [32]
July 16
09:00 UTC (2:00 a.m. PDT) at 15°06′N121°00′W / 15.1°N 121.0°W / 15.1; -121.0 – Hurricane Felicia strengthens into a Category 3 hurricane about 900 mi (1,450 km) southwest of the southern tip of Baja California. [33]
21:00 UTC (11:00 a.m. HST) at 14°54′N122°24′W / 14.9°N 122.4°W / 14.9; -122.4 – Hurricane Felicia strengthens into a Category 4 hurricane about 985 mi (1,585 km) west-southwest of the southern tip of Baja California. [34]
July 17
15:00 UTC (5:00 a.m. HST) at 14°36′N124°36′W / 14.6°N 124.6°W / 14.6; -124.6 – Hurricane Felicia reaches peak intensity with winds of 145 mph (235 km/h) and a minimum central pressure of 945 mbar (27.9 inHg) about 1,120 mi (1,800 km) west-southwest of the southern tip of Baja California. [35]
21:00 UTC (3:00 p.m. MDT) at 17°06′N110°06′W / 17.1°N 110.1°W / 17.1; -110.1 – Tropical Depression Seven-E strengthens into Tropical Storm Guillermo about 400 mi (645 km) south-southeast of the southern tip of Baja California. [37]
July 18
21:00 UTC (11:00 a.m. HST) at 16°00′N129°00′W / 16.0°N 129.0°W / 16.0; -129.0 – Hurricane Felicia weakens into a Category 3 hurricane about 1,330 mi (2,140 km) west-southwest of the southern tip of Baja California. [38]
21:00 UTC (3:00 p.m. MDT) at 18°42′N113°48′W / 18.7°N 113.8°W / 18.7; -113.8 – Tropical Storm Guillermo reaches peak intensity with winds of 60 mph (95 km/h) and a minimum central pressure of 999 mbar (29.5 inHg) about 385 mi (620 km) southwest of the southern tip of Baja California. [39]
July 19
03:00 UTC (5:00 p.m. HST July 18) at 16°18′N130°06′W / 16.3°N 130.1°W / 16.3; -130.1 – Hurricane Felicia weakens into a Category 2 hurricane about 1,390 mi (2,235 km) west-southwest of the southern tip of Baja California. [40]
21:00 UTC (11:00 a.m. HST) at 19°18′N119°48′W / 19.3°N 119.8°W / 19.3; -119.8 – Tropical Storm Guillermo weakens into a tropical depression about 685 mi (1,100 km) west-southwest of the southern tip of Baja California. [43]
21:00 UTC (2:00 p.m. PDT) at 18°42′N126°30′W / 18.7°N 126.5°W / 18.7; -126.5 – Tropical Depression Guillermo transitions into a post-tropical cyclone about 1,110 mi (1,785 km) west-southwest of the southern tip of Baja California. [45]
03:00 UTC (8:00 p.m. PDT July 31) at 14°18′N118°42′W / 14.3°N 118.7°W / 14.3; -118.7 – Tropical Storm Hilda strengthens into a category 1 hurricane about 825 mi (1,330 km) southwest of the southern tip of Baja California. [49]
09:00 UTC (2:00 a.m. PDT) at 14°30′N119°36′W / 14.5°N 119.6°W / 14.5; -119.6 – Hurricane Hilda reaches peak intensity with winds of 85 mph (135 km/h) and a minimum central pressure of 985 mbar (29.1 inHg) about 860 mi (1,385 km) southwest of the southern tip of Baja California. [50]
09:00 UTC (11:00 p.m. HST July 31) at 11°24′N127°30′W / 11.4°N 127.5°W / 11.4; -127.5 – Tropical Depression Nine-E transitions into a post-tropical cyclone about 1,405 mi (2,260 km) west-southwest of the southern tip of Baja California. [51]
15:00 UTC (9:00 a.m. MDT) at 18°18′N114°00′W / 18.3°N 114.0°W / 18.3; -114.0 – Tropical Depression Ten-E strengthens into Tropical Storm Ignacio about 415 mi (670 km) southwest of the southern tip of Baja California. [53]
21:00 UTC (3:00 p.m. MDT) at 18°48′N114°54′W / 18.8°N 114.9°W / 18.8; -114.9 – Tropical Storm Ignacio reaches peak intensity with winds of 40 mph (65 km/h) and a minimum central pressure of 1,004 mbar (29.6 inHg) about 430 mi (690 km) southwest of the southern tip of Baja California. [54]
09:00 UTC (2:00 a.m. PDT) at 20°06′N116°18′W / 20.1°N 116.3°W / 20.1; -116.3 – Tropical Storm Ignacio weakens into a Tropical Depression about 455 mi (730 km) west-southwest of the southern tip of Baja California. [56]
August 4
03:00 UTC (8:00 p.m. PDT August 3) at 20°06′N115°00′W / 20.1°N 115.0°W / 20.1; -115.0 – Tropical Depression Ignacio transitions into a post-tropical cyclone about 1,055 mi (1,700 km) west-southwest of the southern tip of Baja California. [57]
09:00 UTC (11:00 p.m. HST August 4) at 15°30′N136°36′W / 15.5°N 136.6°W / 15.5; -136.6 – Tropical Depression Nine-E strengthens into Tropical Storm Jimena about 1,810 mi (2,915 km) west-southwest of the southern tip of Baja California. [59]
15:00 UTC (5:00 a.m. HST) at 16°06′N137°12′W / 16.1°N 137.2°W / 16.1; -137.2 – Tropical Storm Jimena reaches peak intensity with winds of 40 mph (65 km/h) and a minimum central pressure of 1,005 mbar (29.7 inHg) about 1,835 mi (2,955 km) west of the southern tip of Baja California. [60]
15:00 UTC (8:00 a.m. PDT) at 23°06′N134°06′W / 23.1°N 134.1°W / 23.1; -134.1 – Tropical Depression Hilda transitions into a post-tropical cyclone about 1,535 mi (2,470 km) west of the southern tip of Baja California. [62]
21:00 UTC (3:00 p.m. MDT) at 15°48′N109°42′W / 15.8°N 109.7°W / 15.8; -109.7 – Tropical Storm Kevin reaches peak intensity with winds of 60 mph (95 km/h) and a minimum central pressure of 999 mbar (29.5 inHg) about 490 mi (790 km) south of the southern tip of Baja California. [67]
15:00 UTC (9:00 a.m. MDT) at 16°54′N111°48′W / 16.9°N 111.8°W / 16.9; -111.8 Hurricane Linda strengthens into a category 2 hurricane about 430 mi (690 km) south-southwest of the southern tip of Baja California. [73]
21:00 UTC (3:00 p.m. MDT) at 17°30′N112°54′W / 17.5°N 112.9°W / 17.5; -112.9 Hurricane Linda strengthens into a category 3 hurricane about 420 mi (675 km) south-southwest of the southern tip of Baja California. [74]
03:00 UTC (8:00 p.m. PDT August 14) at 19°18′N118°12′W / 19.3°N 118.2°W / 19.3; -118.2 – Hurricane Linda weakens into a category 3 hurricane about 590 mi (950 km) west-southwest of the southern tip 6of Baja California.[76]
21:00 UTC (11:00 a.m. HST) at 18°48′N121°12′W / 18.8°N 121.2°W / 18.8; -121.2 – Hurricane Linda weakens into a category 2 hurricane about 780 mi (1,255 km) west-southwest of the southern tip of Baja California. [77]
August 17
09:00 UTC (11:00 p.m. HST August 16) at 17°36′N126°24′W / 17.6°N 126.4°W / 17.6; -126.4 – Hurricane Linda weakens into a category 1 hurricane about 1,130 mi (1,820 km) west-southwest of the southern tip of Baja California. [78]
August 18
03:00 UTC (05:00 p.m. HST August 17) at 17°54′N129°30′W / 17.9°N 129.5°W / 17.9; -129.5 Hurricane Linda re-strengthens back into a category 2 hurricane about 1,315 mi (2,115 km) west-southwest of the southern tip of Baja California. [79]
03:00 UTC (8:00 p.m. PDT August 23) at 20°42′N115°48′W / 20.7°N 115.8°W / 20.7; -115.8 – Tropical Storm Marty reaches peak intensity with winds of 45 mph (70 km/h) and a minimum central pressure of 1,002 mbar (29.6 inHg) about 410 mi (660 km) west-southwest of the southern tip of Baja California. [84]
15:00 UTC (8:00 a.m. PDT) at 20°36′N118°06′W / 20.6°N 118.1°W / 20.6; -118.1 – Tropical Storm Marty weakens into a tropical depression about 550 mi (885 km) west-southwest of the southern tip of Baja California. [85]
21:00 UTC (2:00 p.m. PDT) at 20°30′N119°12′W / 20.5°N 119.2°W / 20.5; -119.2 – Tropical Depression Marty transitions into a post-tropical cyclone about 620 mi (1,000 km) west-southwest of the southern tip of Bala California. [86]