The 2023 season

Hurricane Calvin (2023)

Hurricane Calvin reached Category 3 in the Eastern Pacific between July 10, 2023 and July 19, 2023, with a lowest pressure of 953 mb.

Track and intensity

The whole track of Hurricane Calvin, colored by strength, with the other storms of the 2023 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Eastern Pacific
Dates
July 10, 2023 to July 19, 2023
Peak strength
Category 3, 110 kt (127 mph)
Lowest pressure
953 mb (28.14 inHg)
Landfall
No; closest approach 135 km (84 mi)
Accumulated cyclone energy
14.4
Tropical-storm-force wind reached
120 nmi (222 km, 138 mi) from the center at its widest
Hurricane-force wind reached
35 nmi (65 km, 40 mi) from the center at its widest
Eyewall radius at its peak
10 nmi (19 km, 12 mi)
Overall size
200 nmi (370 km, 230 mi) to the outermost closed isobar
Peak gust in the best track
135 kt (155 mph)
Fastest the center moved
20 kt (23 mph)
Identifier
EP032023

Radar at PHWA as it neared land, Jul 19, 12:00 UTC

Deaths and damage

The sources count different things and are not added together.

National Hurricane Center

0 direct deathsnone recorded in the United States

The season table in NHC’s report archive, final report. Direct deaths are those caused by the storm’s own wind, water or surge, anywhere in the world.

NOAA Storm Events

0 deaths (0 direct, 0 indirect)none recorded

What National Weather Service offices recorded county by county in 1 states and marine areas, in the United States only. Property and crop damage as each office estimated it, which is not a national loss total.

In the United States

NOAA’s Storm Events database, the record National Weather Service offices compile months after a storm, as compiled March 2026.

Deaths
0 (0 direct, 0 indirect)
Injuries
0
Property damage
none recorded
Crop damage
none recorded
Events recorded
4 in 1 reports from 1 states and marine areas

State by state

State or marine areaDeathsInjuriesDamageEvents
Hawaii004

What was recorded

3 flood, 1 tropical storm.

What forecast offices wrote

From the Storm Events narratives, unedited.

Wood Valley Rd. was closed due to flooding on the road. The flood waters were the result of heavy rainfall from Tropical Storm Calvin.

Hawaii, Hawaii · Flood · Jul 19, 16:00 UTC

Heavy rainfall due to Tropical Storm Calvin lead to a road closure on Kaalaiki Rd, also known as Pahala Transfer Station Road, due to the buildup of flood waters on the road.

Hawaii, Hawaii · Flood · Jul 19, 18:00 UTC

Track

Time (UTC)PositionWindPressureStatus
Jul 10, 06:0010.4N 98.0W20 kt1009 mbLow
Jul 10, 12:0010.5N 99.4W25 kt1008 mbLow
Jul 10, 18:0010.7N 101.0W30 kt1008 mbLow
Jul 11, 00:0011.2N 102.5W30 kt1008 mbLow
Jul 11, 06:0011.7N 104.2W35 kt1006 mbTropical storm
Jul 11, 12:0012.1N 105.8W35 kt1006 mbTropical storm
Jul 11, 18:0012.3N 107.2W35 kt1006 mbTropical storm
Jul 12, 00:0012.4N 108.5W35 kt1005 mbTropical storm
Jul 12, 06:0012.4N 109.8W40 kt1004 mbTropical storm
Jul 12, 12:0012.4N 111.3W45 kt1002 mbTropical storm
Jul 12, 18:0012.4N 112.8W55 kt998 mbTropical storm
Jul 13, 00:0012.4N 114.3W60 kt995 mbTropical storm
Jul 13, 06:0012.3N 115.4W60 kt995 mbTropical storm
Jul 13, 12:0012.5N 116.6W65 kt993 mbHurricane
Jul 13, 18:0012.7N 118.0W70 kt990 mbHurricane
Jul 14, 00:0013.0N 119.7W85 kt976 mbHurricane
Jul 14, 06:0013.1N 121.3W95 kt966 mbHurricane
Jul 14, 12:0013.4N 122.6W105 kt959 mbHurricane
Jul 14, 18:0013.7N 123.9W110 kt953 mbHurricane
Jul 15, 00:0014.0N 125.3W100 kt962 mbHurricane
Jul 15, 06:0014.4N 126.7W90 kt969 mbHurricane
Jul 15, 12:0014.6N 128.2W90 kt971 mbHurricane
Jul 15, 18:0014.9N 129.7W90 kt973 mbHurricane
Jul 16, 00:0015.2N 131.2W80 kt977 mbHurricane
Jul 16, 06:0015.5N 132.6W75 kt982 mbHurricane
Jul 16, 12:0015.7N 134.0W65 kt990 mbHurricane
Jul 16, 18:0016.0N 135.6W60 kt993 mbTropical storm
Jul 17, 00:0016.4N 137.2W55 kt995 mbTropical storm
Jul 17, 06:0016.6N 138.8W50 kt998 mbTropical storm
Jul 17, 12:0016.7N 140.5W45 kt1000 mbTropical storm
Jul 17, 18:0017.0N 142.4W45 kt1000 mbTropical storm
Jul 18, 00:0017.2N 144.4W40 kt1004 mbTropical storm
Jul 18, 06:0017.3N 146.5W40 kt1002 mbTropical storm
Jul 18, 12:0017.4N 148.5W40 kt1002 mbTropical storm
Jul 18, 18:0017.6N 150.4W45 kt1002 mbTropical storm
Jul 19, 00:0017.8N 152.3W50 kt1003 mbTropical storm
Jul 19, 06:0017.7N 154.3W45 kt1003 mbTropical storm
Jul 19, 12:0017.7N 155.9W40 kt1006 mbTropical storm
Jul 19, 18:0017.9N 157.7W35 kt1009 mbLow

Other Eastern Pacific storms of 2023

What this means

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Sources

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.