Timeline_of_the_2023_Pacific_hurricane_season

Timeline of the 2023 Pacific hurricane season

Timeline of the 2023 Pacific hurricane season

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The 2023 Pacific hurricane season was a fairly active Pacific hurricane season. In the eastern Pacific basin (east of 140°W), 17 named storms formed; 10 of those became hurricanes, and 8 further intensified into major hurricanes (category 3 or higher on the 5-level Saffir–Simpson wind speed scale). In the central Pacific basin (between 140°W and the International Date Line), no tropical cyclones formed (for the fourth consecutive season), though four entered into the basin from the east.[1][2] The season officially began on May 15, 2023, in the eastern Pacific, and on June 1 in the central Pacific; it ended in both on November 30. These dates, adopted by convention, historically describe the period in each year when most tropical cyclogenesis occurs in these regions of the Pacific.[3] The season's first system, Tropical Storm Adrian, developed on June 27, and its last, Tropical Storm Ramon, dissipated on November 26.

Quick Facts Timeline of the 2023 Pacific hurricane season, Season boundaries ...

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.

Timeline

Hurricane OtisHurricane Norma (2023)Tropical Storm Max (2023)Hurricane Lidia (2023)Hurricane Jova (2023)Hurricane HilaryHurricane Dora (2023)Hurricane Beatriz (2023)Saffir–Simpson scale

May

  • No tropical cyclones form in the Eastern Pacific basin during the month of May.

May 15

  • The Eastern Pacific hurricane season officially begins.[3]

June

June 1

  • The Central Pacific hurricane season officially begins.[3]

June 27

  • 12:00 UTC (6:00 a.m. MDT) at 15.2°N 104.5°W / 15.2; -104.5 – A tropical depression forms from a tropical wave about 290 mi (465 km) south of Manzanillo, Colima.[5]
  • 18:00 UTC (12:00 p.m. MDT) at 15.2°N 104.5°W / 15.2; -104.5 – The tropical depression strengthens into Tropical Storm Adrian about 290 mi (465 km) south of Manzanillo.[5]

June 28

June 29

Hurricane Adrian (left) and Tropical Storm Beatriz (right) off the southwestern coast of Mexico on June 29

June 30

  • 06:00 UTC (12:00 a.m. MDT) at 16.7°N 111.4°W / 16.7; -111.4 – Hurricane Adrian intensifies to Category 2 strength about 540 mi (870 km) west-southwest of Manzanillo.[5]
  • 12:00 UTC (6:00 a.m. MDT) at 17.0°N 111.9°W / 17.0; -111.9 – Hurricane Adrian reaches peak intensity with maximum sustained winds of 105 mph (165 km/h) and a minimum central pressure of 970 mbar (28.64 inHg), about 565 mi (905 km) west-southwest of Manzanillo.[5]
  • 12:00 UTC (7:00 a.m. CDT) at 16.8°N 101.8°W / 16.8; -101.8 – Tropical Storm Beatriz strengthens into a Category 1 hurricane about 195 mi (315 km) southeast of Manzanillo, Colima.[6]
  • 18:00 UTC (4:00 p.m. CDT) at 17.5°N 102.7°W / 17.5; -102.7 – Hurricane Beatriz reaches peak intensity with maximum sustained winds of 85 mph (140 km/h) and a minimum central pressure of 992 mbar (29.29 inHg), about 115 mi (185 km) southeast of Manzanillo.[6]

July

July 1

July 2

July 11

July 13

  • 12:00 UTC (2:00 a.m. HST) at 12.5°N 116.6°W / 12.5; -116.6 – Tropical Storm Calvin strengthens into a Category 1 hurricane about 840 mi (1,350 km) southwest of the southern tip of the Baja California peninsula.[8]

July 14

Hurricane Calvin at peak intensity on July 14
  • 00:00 UTC (2:00 p.m. HST, July 13) at 13.0°N 119.7°W / 13.0; -119.7 – Hurricane Calvin intensifies to Category 2 strength about 940 mi (1,510 km) southwest of the southern tip of the Baja California peninsula.[8]
  • 12:00 UTC (2:00 a.m. HST) at 13.4°N 122.6°W / 13.4; -122.6 – Hurricane Calvin intensifies to Category 3 strength about 1,060 mi (1,705 km) southwest of the southern tip of the Baja California peninsula.[8]
  • 18:00 UTC (8:00 a.m. HST) at 13.7°N 123.9°W / 13.7; -123.9 – Hurricane Calvin reaches peak intensity with maximum sustained winds of 125 mph (205 km/h) and a minimum central pressure of 953 mbar (28.14 inHg), about 1,115 mi (1,795 km) west-southwest of the southern tip of the Baja California Peninsula.[8]

July 15

  • 06:00 UTC (8:00 p.m. HST, July 14) at 14.4°N 126.7°W / 14.4; -126.7 – Hurricane Calvin weakens to Category 2 strength about 1,310 mi (2,110 km) west-southwest of the southern tip of the Baja California peninsula.[8]

July 16

July 17

July 19

  • 18:00 UTC (8:00 a.m. HST) at 17.9°N 157.7°W / 17.9; -157.7 – Tropical Storm Calvin degenerates into a remnant low about 150 mi (240 km) southwest of Ka Lae, and later dissipates.[8]

July 20

July 22

July 31

August

August 1

August 2

  • 03:00 UTC (5:00 p.m. HST, August 1) at 16.2°N 111.5°W / 16.2; -111.5 – Tropical Storm Dora strengthens into a Category 1 hurricane about 510 mi (820 km) west-southwest of Manzanillo.[12]
  • 15:00 UTC (5:00 a.m. HST) at 15.6°N 114.2°W / 15.6; -114.2 – Hurricane Dora intensifies to Category 2 strength about 575 mi (925 km) south-southwest of the southern tip of the Baja California peninsula.[13]

August 3

  • 03:00 UTC (5:00 p.m. HST, August 2) at 15.2°N 116.9°W / 15.2; -116.9 – Hurricane Dora intensifies to Category 3 strength about 700 mi (1,125 km) southwest of the southern tip of the Baja California peninsula.[14]
  • 09:00 UTC (11:00 p.m. HST, August 2) at 15.0°N 118.5°W / 15.0; -118.5 – Hurricane Dora intensifies to Category 4 strength about 780 mi (1,255 km) southwest of the southern tip of the Baja California peninsula.[15]
  • 15:00 UTC (5:00 a.m. HST) at 14.7°N 120.1°W / 14.7; -120.1 – Hurricane Dora weakens to Category 3 strength about 875 mi (1,410 km) southwest of the southern tip of the Baja California peninsula.[16]

August 4

  • 01:00 UTC (3:00 p.m. HST, August 3) at 14.2°N 122.9°W / 14.2; -122.9 – Hurricane Dora re-intensifies to Category 4 strength about 1,035 mi (1,665 km) southwest of the southern tip of the Baja California peninsula.[17]
  • 15:00 UTC (5:00 a.m. HST) at 14.0°N 126.9°W / 14.0; -126.9 – Hurricane Dora weakens to Category 3 strength about 1,270 mi (2,045 km) west-southwest of the southern tip of the Baja California peninsula.[18]
  • 21:00 UTC (11:00 a.m. HST) at 13.8°N 128.5°W / 13.8; -128.5 – Hurricane Dora weakens to Category 2 strength about 1,370 mi (2,205 km) west-southwest of the southern tip of the Baja California peninsula.[19]

August 5

August 6

Hurricane Dora illuminated by the moon on the early morning of August 6
  • 03:00 UTC (5:00 p.m. HST, August 5) at 13.2°N 136.5°W / 13.2; -136.5 – Hurricane Dora reaches peak intensity with maximum sustained winds of 145 mph (230 km/h) and a minimum central pressure of 942 mbar (27.82 inHg), about 1,335 mi (2,150 km) east-southeast of Ka Lae.[23]
  • 12:00 UTC (6:00 a.m. MDT) at 21.3°N 110.6°W / 21.3; -110.6 – Tropical Storm Eugene reaches peak intensity with maximum sustained winds of 70 mph (110 km/h) and a minimum central pressure of 992 mbar (29.29 inHg).[20]
  • 15:00 UTC (5:00 a.m. HST) at 13.0°N 140.1°W / 13.0; -140.1 – Hurricane Dora enters the Central Pacific basin about 1,115 mi (1,795 km) east-southeast of Ka Lae.[24]

August 7

August 10

August 11

August 12

August 13

August 14

August 15

August 16

August 17

August 18

Hurricane Hilary at Category 4 strength while paralleling the coast of Mexico on August 18
  • 00:00 UTC (6:00 p.m. MDT, August 17, 2023) at 16.4°N 109.5°W / 16.4; -109.5 – Hurricane Hilary intensifies to Category 3 strength.[29]
  • 06:00 UTC (12:00 a.m. MDT) at 16.8°N 110.4°W / 16.8; -110.4 – Hurricane Hilary intensifies to Category 4 strength and simultaneously reaches peak intensity with maximum sustained winds of 140 mph (220 km/h) and a minimum central pressure of 940 mbar (27.76 inHg), about 430 mi (695 km) west-southwest of Manzanillo.[29]
  • 18:00 UTC (12:00 p.m. MDT) at 18.2°N 111.9°W / 18.2; -111.9 – Hurricane Hilary weakens to Category 3 strength[29] about 60 mi (110 km) west-southwest of Socorro Island.[30]

August 19

August 20

August 26

August 27

August 29

  • 00:00 UTC (2:00 p.m. HST, August 28) at 19.1°N 125.0°W / 19.1; -125.0 – Tropical Storm Irwin reaches peak intensity with maximum sustained winds of 45 mph (75 km/h) and a minimum central pressure of 998 mbar (29.47 inHg).[32]
  • 12:00 UTC (2:00 a.m. HST) at 19.7°N 128.1°W / 19.7; -128.1 – Tropical Storm Irwin degenerates to a remnant low, and subsequently dissipates.[32]

September

September 4

September 5

  • 06:00 UTC (12:00 a.m. MDT) at 12.4°N 105.9°W / 12.4; -105.9 – Tropical Depression Eleven‑E strengthens into Tropical Storm Jova[33] far to the south-southeast of the southern tip of the Baja California peninsula.[34]

September 6

Hurricane Jova at high-end Category 4 intensity late on September 6

September 7

  • 00:00 UTC (6:00 p.m. MDT, September 6) at 15.3°N 112.4°W / 15.3; -112.4 – Hurricane Jova intensifies to Category 5 strength and simultaneously reaches peak intensity with maximum sustained winds of 160 mph (260 km/h) and minimum central pressure of 926 mbar (25 inHg).[33]
  • 12:00 UTC (6:00 a.m. PDT) at 16.8°N 115.0°W / 16.8; -115.0 – Hurricane Jova weakens to Category 4 strength.[33]

September 8

September 9

September 10

September 15

September 18

  • 06:00 UTC (8:00 p.m. HST, September 17) at 12.3°N 146.5°W / 12.3; -146.5 – Tropical Depression Twelve‑E degenerates to a remnant low far southeast of the Big Island of Hawaii, and later dissipates.[35]

September 19

  • 06:00 UTC (11:00 p.m. PDT, September 18) at 14.4°N 117.5°W / 14.4; -117.5 – Tropical Depression Thirteen‑E forms southwest of the southern tip of the Baja California peninsula.[36]
  • 12:00 UTC (5:00 a.m. PDT) at 14.7°N 118.8°W / 14.7; -118.8 – Tropical Depression Thirteen‑E strengthens into Tropical Storm Kenneth southwest of the southern tip of the Baja California peninsula.[36]

September 21

  • 00:00 UTC (5:00 p.m. PDT, September 20) at 16.3°N 124.5°W / 16.3; -124.5 – Tropical Storm Kenneth reaches peak intensity with maximum sustained winds of 50 mph (85 km/h) and a minimum central pressure of 1000 mbar (29.53 inHg), west-southwest of the southern tip of the Baja California peninsula.[36]

September 22

  • 06:00 UTC (11:00 p.m. PDT, September 21) at 18.8°N 126.1°W / 18.8; -126.1 – Tropical Storm Kenneth weakens to a tropical depression west of the southern tip of the Baja California peninsula.[36]
  • 12:00 UTC (5:00 a.m. PDT) at 20.0°N 125.9°W / 20.0; -125.9 – Tropical Depression Kenneth degenerates to a remnant low west of the southern tip of the Baja California peninsula, and subsequently dissipates.[36]

September 23

  • 12:00 UTC (5:00 a.m. PDT) at 13.6°N 118.5°W / 13.6; -118.5 – Tropical Depression Fourteen‑E forms from a tropical wave about 865 mi (1,390 km) southwest of the southern tip of the Baja California peninsula.[37]

September 25

  • 00:00 UTC (5:00 p.m. PDT, September 24) at 15.1°N 125.9°W / 15.1; -125.9 – Tropical Depression Fourteen‑E degenerates into a remnant low about 1,370 mi (2,205 km) southwest of the southern tip of the Baja California peninsula.[37]

October

October 3

October 8

October 9

  • 00:00 UTC (7:00 p.m. CDT, October 8) at 16.1°N 101.6°W / 16.1; -101.6 – Tropical Depression Sixteen‑E strengthens into Tropical Storm Max about 105 mi (165 km) south of Zihuatanejo.[40]
  • 18:00 UTC (12:00 p.m. MDT) at 17.8°N 111.4°W / 17.8; -111.4 – Tropical Storm Lidia strengthens into a Category 1 hurricane about 445 mi (715 km) southwest of Puerto Vallarta, Jalisco.[38]
  • 18:00 UTC (1:00 p.m. CDT) at 17.3°N 101.1°W / 17.3; -101.1 – Tropical Storm Max reaches peak intensity with maximum sustained winds of 70 mph (110 km/h) and a minimum central pressure of 990 mbar (29.23 inHg), and simultaneously makes landfall near Puerto Vicente, Guerrero.[40]

October 10

Hurricane Lidia shortly before landfall in Jalisco on October 10

October 11

  • 00:00 UTC (6:00 p.m. MDT, October 10) at 20.1°N 105.5°W / 20.1; -105.5 – Hurricane Lidia intensifies to Category 4 strength and simultaneously reaches peak intensity with maximum sustained winds of 140 mph (220 km/h) and a minimum central pressure of 942 mbar (27.82 inHg), together with making landfall near Las Peñitas, Jalisco, about 40 mi (65 km) southwest of Puerto Vallarta.[38]
  • 06:00 UTC (1:00 a.m. CDT) at 21.7°N 103.5°W / 21.7; -103.5 – Hurricane Lidia weakens to a tropical storm inland[38] about 85 miles (140 km) north of Guadalajara, Jalisco.[41]
  • 12:00 UTC (7:00 a.m. CDT) at 24.5°N 100.5°W / 24.5; -100.5 – Tropical Storm Lidia degenerates into a remnant low inland over Northern Mexico, and later dissipates.[38]

October 17

October 18

  • 18:00 UTC (12:00 p.m. MDT) at 15.3°N 107.9°W / 15.3; -107.9 – Tropical Storm Norma strengthens into a Category 1 hurricane about 520 mi (835 km) south-southeast of Cabo San Lucas, Baja California Sur.[42]

October 19

  • 06:00 UTC (12:00 a.m. MDT) at 16.4°N 107.8°W / 16.4; -107.8 – Hurricane Norma intensifies to Category 3 strength about 445 mi (715 km) south-southeast of Cabo San Lucas.[42]
  • 12:00 UTC (6:00 a.m. MDT) at 16.9°N 107.7°W / 16.9; -107.7 – Hurricane Norma intensifies to Category 4 strength and simultaneously reaches peak intensity with maximum sustained winds of 130 mph (215 km/h) and a minimum central pressure of 939 mbar (27.73 inHg) about 405 mi (650 km) south-southeast of Cabo San Lucas.[42]
  • 18:00 UTC (12:00 p.m. MDT) at 17.3°N 108.0°W / 17.3; -108.0 – Hurricane Norma weakens to Category 3 strength about 370 mi (595 km) south-southeast of Cabo San Lucas.[42]

October 21

October 22

  • 00:00 UTC (6:00 p.m. MDT October 21) at 23.6°N 110.1°W / 23.6; -110.1 – Hurricane Norma weakens to a tropical storm inland about 45 mi (75 km) west-northwest of Cabo San Lucas.[42]
  • 12:00 UTC (7:00 a.m. CDT) at 9.8°N 96.7°W / 9.8; -96.7 – Tropical Depression Eighteen‑E forms about 535 mi (860 km) south-southeast of Acapulco, Guerrero.[43]
  • 21:00 UTC (4:00 p.m. CDT) at 10.2°N 96.9°W / 10.2; -96.9 – Tropical Depression Eighteen‑E strengthens into Tropical Storm Otis about 505 mi (815 km) south-southeast of Acapulco.[43]

October 23

October 24

October 25

Enhanced infrared imagery of Hurricane Otis making landfall near Acapulco, on October 25
  • 00:00 UTC (7:00 p.m. CDT October 24) at 15.7°N 99.6°W / 15.7; -99.6 – Hurricane Otis intensifies to Category 4 strength about 85 mi (140 km) south-southeast of Acapulco.[43]
  • 03:00 UTC (10:00 p.m. CDT October 24) at 16.1°N 99.7°W / 16.1; -99.7 – Hurricane Otis intensifies to Category 5 strength and simultaneously reaches peak intensity with maximum sustained winds of 165 mph (270 km/h) and a minimum central pressure of 922 mbar (27.23 inHg) about 60 mi (95 km) south-southeast of Acapulco.[43]
  • 06:45 UTC (1:45 a.m. CDT) at 16.8°N 99.9°W / 16.8; -99.9 – Hurricane Otis makes landfall with sustained winds of 160 mph (260 km/h) in Acapulco.[nb 5][43]
  • 12:00 UTC (7:00 a.m. CDT) at 17.7°N 100.3°W / 17.7; -100.3 – Hurricane Otis weakens to Category 2 strength inland about 60 mi (95 km) north-northwest of Acapulco.[43]
  • 18:00 UTC (1:00 p.m. CDT) at 18.6°N 100.7°W / 18.6; -100.7 – Hurricane Otis weakens to tropical storm strength inland about 125 mi (205 km) north-northwest of Acapulco, and soon dissipates.[43]

October 28

October 30

  • 00:00 UTC (7:00 p.m. CDT, October 29) at 10.8°N 92.3°W / 10.8; -92.3 – Tropical Depression Nineteen‑E strengthens into Tropical Storm Pilar about 255 mi (405 km) west-southwest of San Salvador.[45]

November

November 1

  • 00:00 UTC (7:00 p.m. CDT, October 31) at 11.7°N 89.4°W / 11.7; -89.4 – Tropical Storm Pilar reaches peak intensity with maximum sustained winds of 65 mph (100 km/h) and a minimum central pressure of 995 mbar (29.38 inHg), about 90 mi (150 km) offshore of El Salvador.[45]

November 5

  • 18:00 UTC (11:00 a.m. MST) at 10.5°N 113.9°W / 10.5; -113.9 – Tropical Storm Pilar degenerates into a remnant low far southwest of the southern tip of the Baja California peninsula, and subsequently dissipates.[45]

November 21

November 24

November 25

  • 18:00 UTC (10:00 a.m. PST) at 15.0°N 122.9°W / 15.0; -122.9 – Tropical Storm Ramon reaches peak intensity with maximum sustained winds of 45 mph (75 km/h) and a minimum central pressure of 1002 mbar (29.59 inHg),[46] roughly 1,000 mi (1,610 km) west-southwest of the southern tip of the Baja California peninsula.[47]

November 26

November 30

  • The 2023 Pacific hurricane season officially ends in the Eastern and Central Pacific basins.[3]

See also

Notes

  1. [N 1]
    Denotes number of days Hurricane Dora existed in the Eastern and Central Pacific basins, before crossing over into the Western Pacific basin.
  2. [N 2]
    Beatriz formed from the same tropical wave that had previously spawned Atlantic Tropical Storm Bret.[6]
  3. [N 3]
    Due to the threat the developing system posed to southwestern Mexico, the National Hurricane Center initiated advisories on it, designating it Potential Tropical Cyclone Two-E at 03:00 UTC on June 29.[7]
  4. [N 4]
    Due to the threat the developing system posed to southern Mexico, the National Hurricane Center initiated advisories on it, designating it Potential Tropical Cyclone Sixteen-E at 03:00 UTC on October 8.[39]
  5. [N 5]
    Otis was the first Pacific hurricane on record to make landfall at Category 5 intensity, thus becoming the strongest hurricane to make landfall on the Pacific coast of Mexico.[44]

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