Parts of this article (those related to systems from Felicia on not using information from the Tropical Cyclone Reports) need to be updated. Please help update this article to reflect recent events or newly available information.(June 2022)
The 2021 Pacific hurricane season was a moderately active hurricane season, with above-average tropical activity in terms of named storms,[nb 1] but featured below-average activity in terms of major hurricanes.[nb 2] It is the first season to have at least five systems make landfall in Mexico, the most since 2018.[1] It was also the second consecutive season in which no tropical cyclones formed in the Central Pacific (between 140°W and the International Date Line). The season officially began on May 15 in the Eastern Pacific (east of 140°W longitude), and on June 1 in the Central Pacific; both ended on November 30. These dates historically describe the period each year when most tropical cyclones form in the eastern and central Pacific and are adopted by convention.[2] However, the formation of tropical cyclones is possible at any time of the year, as illustrated this year by the formation of Tropical Storm Andres on May 9. This was the earliest forming tropical storm on record in the Eastern Pacific.[3] The season effectively ended with the dissipation of Tropical Storm Terry, on November 10.
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.
By convention, meteorologists use one time zone when issuing forecasts and making observations: Coordinated Universal Time (UTC), and also use the 24-hour clock (where 00:00 = midnight UTC).[4] Tropical cyclone advisories in the Eastern North Pacific basin use both UTC and the nautical time zone where the center of the tropical cyclone is currently located. Time zones utilized (east to west) are: Central, Mountain, Pacific and Hawaii. In this timeline, all information is listed by UTC first, with the respective regional time zone included in parentheses. Additionally, figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following National Hurricane Center practice. Direct wind observations are rounded to the nearest whole number. Atmospheric pressures are listed to the nearest millibar and nearest hundredth of an inch of mercury.
12:00 UTC (6:00 a.m. MDT) at 13°42′N107°54′W / 13.7°N 107.9°W / 13.7; -107.9 – Tropical Depression One-E strengthens into Tropical Storm Andres, and subsequently reaches peak intensity with winds of 40 mph (65 km/h) and a central pressure of 1005 mbar (29.68 inHg).[3]
May 10
18:00 UTC (6:00 p.m. MDT) at 15°42′N109°42′W / 15.7°N 109.7°W / 15.7; -109.7 – Tropical Storm Andres weakens into a tropical depression about 200 nmi (230 mi; 370 km) south of the southern tip of Baja California due to strong wind shear.[3]
12:00 UTC (5:00 a.m. PDT) at 11°36′N122°18′W / 11.6°N 122.3°W / 11.6; -122.3 – Tropical Depression Three-E forms about 975 nmi (1,120 mi; 1,805 km) southwest of the southern tip of Baja California due to improved deep convection.[7]
06:00 UTC (11:00 p.m. PDT June 12) at 11°54′N125°00′W / 11.9°N 125.0°W / 11.9; -125.0 – Tropical Storm Carlos reaches peak intensity with winds of 45 kn (50 mph; 85 km/h) and a minimum central pressure of 1,003 mbar (29.6 inHg) [7]
June 14
18:00 UTC (11:00 a.m. PDT) at 10°54′N129°30′W / 10.9°N 129.5°W / 10.9; -129.5 – Tropical Storm Carlos weakens into a tropical depression about 1,325 nmi (1,525 mi; 2,455 km) west-southwest of the southern tip of the Baja California Peninsula after losing organisation.[7]
June 16
12:00 UTC (5:00 a.m. PDT) at 8°48′N134°54′W / 8.8°N 134.9°W / 8.8; -134.9 – Tropical Depression Carlos transitions into a tropical low about 1,675 nmi (1,930 mi; 3,100 km) west-southwest of the southern tip of the Baja California Peninsula after losing deep convection.[7]
June 18
Track of Tropical Storm Dolores from June 18–20, according to the Saffir-Simpson scale
18:00 UTC (12:00 p.m. MDT) at 18°42′N105°42′W / 18.7°N 105.7°W / 18.7; -105.7 – Hurricane Enrique reaches peak intensity with winds of 80 kn (90 mph; 150 km/h) and a minimum central pressure of 972 millibars (28.7 inHg).[9]
06:00 UTC (11:00 p.m. PDT July 14) at 15°06′N117°06′W / 15.1°N 117.1°W / 15.1; -117.1 – Tropical Storm Felicia strengthens into a Category 1 hurricane about 750 nmi (865 mi; 1,390 km) southwest of the southern tip of Baja California. [10]
18:00 UTC (11:00 a.m. PDT) at 15°18′N119°00′W / 15.3°N 119.0°W / 15.3; -119.0 – Hurricane Felicia strengthens into a Category 2 hurricane about 815 mi (1,310 km) southwest of the southern tip of Baja California. [10]
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.[11]
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.[12]
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.[13]
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.[15]
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.[16]
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.[17]
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.[18]
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.[21]
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.[23]
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.[27]
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.[28]
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.[29]
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.[31]
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.[32]
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.[34]
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.[35]
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.[37]
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.[38]
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.[40]
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.[45]
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.[51]
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.[52]
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.[54]
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.[55]
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.[56]
August 18
03:00 UTC (5:00 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.[57]
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.[62]
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.[63]
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.[64]
06:00 UTC (1:00 a.m. CDT) at 17°12′N101°42′W / 17.2°N 101.7°W / 17.2; -101.7 – Hurricane Rick intensifies to Category 2 status about 35 mi (55 km) south of Zihuatanejo, and simultaneously reaches its peak intensity with maximum sustained winds of 100 mph (160 km/h) and a central pressure of 977 mb (28.9 inHg).[92]
^Hurricanes reaching Category 3 (111 miles per hour or 179 kilometers per hour) and higher on the five-level Saffir–Simpson wind speed scale are considered major hurricanes.
^Cangialosi, John (October 12, 2021). "Hurricane Pamela Advisory Number 9". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved October 12, 2021.
^Pasch, Richard (October 13, 2021). "Hurricane Pamela Advisory Number 13". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved October 13, 2021.
^Papin, Philippe (October 13, 2021). "Hurricane Pamela Advisory Number 14". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved October 13, 2021.
^Papin, Philippe (October 13, 2021). "Hurricane Pamela Advisory Number 15". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved October 13, 2021.
^Brown, Daniel (October 13, 2021). "Hurricane Pamela Advisory Number 16". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved October 13, 2021.
^Latto, Andrew; Pasch, Richard (October 22, 2021). "Tropical Storm Rick Advisory Number 2". www.nhc.noaa.gov. Miami, Florida: National Hurricane Center. Retrieved October 23, 2021.
