Arrocane Milton
 | |
| Meteorological history | |
|---|---|
| Formed | July 12, 2019 |
| Extratropical | July 18, 2019 |
| Dissipated | July 21, 2019 |
| Very intense arrocane | |
| 10-minute sustained (FML) | |
| Highest winds | 180 mph (285 km/h) (Record highest worldwide) |
| Lowest pressure | 865 mbar (hPa); 25.54 inHg (Record lowest worldwide) |
| Category 5 major arrocane | |
| 1-minute sustained (AAWS/NWS) | |
| Highest winds | 200 mph (325 km/h) (Record highest worldwide) |
| Lowest pressure | 865 mbar (hPa); 25.54 inHg (Record lowest worldwide) |
| Overall effects | |
| Fatalities | 437 total |
| Missing | 190 |
| Damage | $75 billion (2019 USD) (Costliest tropical cyclone on record) |
| Areas affected |
|
Part of the 2019 Ardonia arrocane season | |
Arrocane Milton was an exceptionally powerful and destructive tropical cyclone that became the strongest tropical cyclone ever recorded worldwide by maximum sustained winds and minimum central pressure. The thirteenth tropical cyclone and named storm, eighth arrocane, and fifth major arrocane of the 2019 Ardonia arrocane season, Milton underwent an extraordinary period of rapid intensification while approaching southern Ardonia in mid-July. At 00:00 UTC on July 15, Milton attained maximum sustained winds of 200 mph (320 km/h) and a minimum central pressure of 865 mbar (hPa; 25.54 inHg), establishing worldwide records for both measurements. Milton subsequently affected Cydonia and surrounding islands, causing $75 billion (2019 USD) in damage and 437 fatalities. An additional 190 people were reported missing.
Milton developed into a tropical cyclone on July 12 while over open waters and initially strengthened gradually as it moved toward Cydonia. After becoming a Category 1 arrocane early on July 14, Milton began an extreme period of rapid intensification. Between 00:00 UTC on July 14 and 00:00 UTC on July 15, its maximum sustained winds increased from 75 mph (121 km/h) to 200 mph (320 km/h), an increase of 125 mph (201 km/h) in 24 hours, while its central pressure fell from 986 to 865 mbar. Milton reached Category 5 intensity during this period before attaining its record peak early on July 15. The cyclone weakened shortly thereafter but remained exceptionally intense, subsequently undergoing another period of strengthening and reaching a secondary peak of 185 mph (298 km/h) on July 16.
Milton brought catastrophic impacts to portions of Cydonia, with the capital city of Meridian experiencing the overwhelming majority of the cyclone's overall destruction and loss of life. Significant effects also occurred on the Trinity Islands, at the Cydonia Mines, and on Po'Hatu, while Crescent Beach and Blade Island were also affected. In total, Milton caused an estimated $75 billion in damage and killed 437 people, making it one of the deadliest and costliest tropical cyclones in Ardonia's recorded history. Milton rapidly weakened after its final period at Category 5 intensity, fell below arrocane strength on July 17, and became extratropical on July 18. Its extratropical remnants persisted for several more days before dissipating on July 21.
The FML assessed Milton as a very intense arrocane with peak 10-minute sustained winds of 180 mph (290 km/h) and a minimum central pressure of 865 mbar (hPa; 25.54 inHg).
Meteorological history
Tropical storm (40–74 mph, 64–119 km/h)
Category 1 (75–94 mph, 120–159 km/h)
Category 2 (95–114 mph, 160–183 km/h)
Category 3 (115–129 mph, 184–208 km/h)
Category 4 (130–159 mph, 209–256 km/h)
Category 5 (≥160 mph, ≥257 km/h)
Unknown
Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression The origins of Milton can be traced to an area of disturbed weather over the open ocean south of Cydonia in early July. The disturbance gradually became better organized, and at 18:00 UTC on July 12, it developed into a tropical cyclone with maximum sustained winds of 40 mph (64 km/h) and a central pressure of 1001 mbar (hPa; 29.56 inHg), receiving the name Milton. Initially, Milton strengthened gradually while moving generally toward Cydonia. Its winds increased to 45 mph (72 km/h) by 00:00 UTC on July 13 and to 60 mph (97 km/h) twelve hours later. By 18:00 UTC, Milton had strengthened to 70 mph (110 km/h), with its central pressure falling to 988 mbar (hPa; 29.18 inHg).
At 00:00 UTC on July 14, Milton became a Category 1 arrocane after its maximum sustained winds reached 75 mph (121 km/h). Strengthening accelerated thereafter, with Milton reaching 90 mph (140 km/h) by 06:00 UTC. An exceptionally rapid period of intensification then commenced. Only six hours later, Milton's winds had increased to 155 mph (249 km/h), making it a Category 4 major arrocane, while its central pressure had fallen from 980 to 923 mbar. At 18:00 UTC, Milton attained Category 5 intensity with maximum sustained winds of 175 mph (282 km/h) and a central pressure of 895 mbar (hPa; 26.43 inHg).
Milton continued strengthening during the following six hours. At 00:00 UTC on July 15, the cyclone reached its record peak intensity, with maximum sustained winds of 200 mph (320 km/h) and a minimum central pressure of 865 mbar (hPa; 25.54 inHg). In the preceding 24 hours, Milton's winds had increased by 125 mph (201 km/h), from 75 mph (121 km/h) to 200 mph (320 km/h), while its pressure had fallen by 121 mbar, from 986 to 865 mbar. The intensity established worldwide records for both maximum sustained winds and minimum central pressure in a tropical cyclone.
| Rank | Arrocane | Season | Pressure | |
|---|---|---|---|---|
| hPa | inHg | |||
| 1 | Milton | 2019 | 865 | 25.54 |
| 2 | Gilbert | 2020 | 880 | 25.99 |
| 3 | Arlene | 2019 | 899 | 26.55 |
| 4 | Katrina | 2019 | 901 | 26.61 |
| 5 | "Port Kazu" | 1865 | 911 | 26.90 |
| 6 | Lee | 2020 | 918 | 27.11 |
| 7 | Florence | 2019 | 925 | 27.32 |
| 8 | "Trinity Islands" | 1865 | 929 | 27.43 |
| 9 | Michael | 2020 | 930 | 27.46 |
| 10 | Wilma | 2019 | 931 | 27.49 |
| Source: FML | ||||
Following its record peak, Milton weakened abruptly. Its maximum sustained winds decreased to 165 mph (266 km/h) and its central pressure rose to 902 mbar by 06:00 UTC on July 15. Six hours later, Milton briefly weakened below Category 5 intensity, with winds of 155 mph (249 km/h) and a pressure of 926 mbar. This weakening proved temporary. Milton began to reorganize later on July 15 and regained Category 5 intensity at 18:00 UTC, when its winds increased to 160 mph (260 km/h) and its pressure fell to 917 mbar.
A second period of intensification occurred as Milton continued toward Cydonia. By 00:00 UTC on July 16, Milton had strengthened to 175 mph (282 km/h), and six hours later it attained a secondary peak with maximum sustained winds of 185 mph (298 km/h) and a central pressure of 900 mbar (hPa; 26.58 inHg). Although weaker than its unprecedented peak the previous day, Milton remained an exceptionally intense Category 5 arrocane. Thereafter, gradual weakening commenced, with winds decreasing to 180 mph (290 km/h) at 12:00 UTC and 175 mph (282 km/h) by 18:00 UTC.
Milton remained a Category 5 arrocane into July 17, possessing maximum sustained winds of 165 mph (266 km/h) at 00:00 UTC. Rapid weakening subsequently occurred as the cyclone interacted with land. By 06:00 UTC, Milton had weakened to a Category 3 arrocane with winds of 125 mph (201 km/h), followed by Category 1 intensity with winds of 90 mph (140 km/h) at 12:00 UTC. Milton weakened below arrocane intensity by 18:00 UTC, when its winds decreased to 70 mph (110 km/h).
The weakening cyclone continued away from the region overnight, with its winds decreasing to 65 mph (105 km/h) by 00:00 UTC on July 18. At 06:00 UTC, Milton transitioned into an extratropical cyclone while producing maximum sustained winds of 60 mph (97 km/h) and a central pressure of 998 mbar (hPa; 29.47 inHg). The extratropical remnants persisted for several days, gradually weakening as they moved farther from Cydonia. By July 20, winds had decreased to 35 mph (56 km/h), and the remnant circulation ultimately dissipated on July 21.
The FML assessed Milton as a very intense arrocane, with peak 10-minute sustained winds of 180 mph (290 km/h) and a minimum central pressure of 865 mbar (hPa; 25.54 inHg).
Preparations
Cydonia
Preparations for Milton began across Cydonia as the developing cyclone approached southern Ardonia from the southeast. Initially, Milton was expected to pose a threat primarily from strong winds, heavy rainfall, and dangerous coastal conditions. As its projected path became better established, preparations expanded across southern Cydonia and its offshore islands. Maritime activity was increasingly curtailed, while residents in exposed coastal and island communities were advised to secure property and prepare for potentially destructive conditions.
The situation changed dramatically on July 14 as Milton underwent an exceptional period of rapid intensification. Milton strengthened from a Category 1 arrocane with winds of 75 mph (121 km/h) at 00:00 UTC to a Category 5 arrocane with winds of 175 mph (282 km/h) by 18:00 UTC. The unexpectedly rapid strengthening substantially increased the anticipated severity of the cyclone and shortened the period available for final preparations. By 00:00 UTC on July 15, Milton had reached its record peak intensity of 200 mph (320 km/h) and 865 mbar (hPa; 25.54 inHg).
Trinity Islands
Preparations on the Trinity Islands began as Milton approached the region from the southeast. Because of their exposed island location, deteriorating marine conditions presented an early hazard before the arrival of the cyclone's strongest winds. Boats and other maritime equipment were secured where possible, while travel by water was increasingly restricted as seas surrounding the islands became dangerous.
Residents prepared buildings for strong winds and moved away from particularly exposed portions of the shoreline. Supplies were secured ahead of the cyclone, while residents who remained on the islands sought shelter in sturdier structures as conditions deteriorated. Milton ultimately passed close enough to the islands to produce damaging conditions, although the Trinity Islands avoided the catastrophic impacts later experienced nearer the cyclone's path through Cydonia.
Cydonia Mines
Preparations were also undertaken at the Cydonia Mines as the threat from Milton increased. Outdoor operations were reduced and eventually suspended ahead of the cyclone, while equipment and loose materials were secured against the expected winds. Personnel prepared for interruptions to transportation and access as heavy rainfall and strong winds approached the area.
Particular attention was given to exposed infrastructure and routes serving the mines. As Milton intensified into a Category 5 arrocane, remaining outdoor preparations became increasingly hazardous, and personnel sought protected locations before the arrival of destructive conditions.
Po'Hatu
On Po'Hatu, preparations focused on the island's small village and its exposed position near the approaching cyclone. Residents secured homes and other structures while supplies were gathered before conditions prevented further movement. Boats and equipment near the shoreline were moved or secured where possible.
The island's isolation increased the importance of completing preparations before Milton's arrival, as worsening seas threatened to restrict travel to and from the settlement. Residents in the most exposed locations moved to more substantial shelter as the cyclone approached. Preparations were largely completed by the time tropical-storm-force winds and increasingly dangerous marine conditions reached the island.
Meridian
The most extensive preparations occurred in Meridian, the island capital of Cydonia. As Milton's projected track increasingly threatened the city, residents prepared for the possibility of a direct strike from a major arrocane. Homes, businesses, and public structures were secured, while loose objects and supplies were moved indoors. Maritime activity surrounding the island was suspended as seas deteriorated.
The urgency of preparations increased sharply during Milton's explosive intensification on July 14. The cyclone's rapid strengthening from Category 1 to Category 5 intensity within 18 hours substantially changed the magnitude of the expected threat. Residents in exposed portions of the island relocated to sturdier shelter where possible, while preparations increasingly shifted from protecting property to protecting life as Milton approached extreme intensity.
Milton's unprecedented peak early on July 15 heightened concerns for Meridian despite the cyclone subsequently weakening. The arrocane remained at Category 5 intensity, and after briefly weakening to Category 4 strength, it re-intensified and reached a secondary peak of 185 mph (298 km/h) on July 16. With the cyclone continuing toward the capital region, residents were urged to remain sheltered and avoid travel.
By the time Milton's eyewall approached Meridian, outside preparations had effectively ceased. The cyclone subsequently made two Category 5 landfalls in the vicinity of the capital with maximum sustained winds of 165 mph (266 km/h), accompanied by central pressures of 920 mbar and 919 mbar, respectively. The extreme conditions produced during these landfalls ultimately resulted in the majority of Milton's fatalities and economic losses.
Crescent Beach
Preparations were undertaken at Crescent Beach as Milton's circulation approached the region. Increasingly dangerous surf and strong winds prompted residents to secure property near the shoreline and move away from particularly exposed coastal locations. Maritime activity was suspended as conditions offshore deteriorated.
Residents remaining in the area sought shelter before the arrival of the cyclone's strongest conditions. The threat from large waves, coastal flooding, and wind-blown debris increased as Milton passed through the region, limiting travel and bringing outdoor preparations to an end.
Blade Island
Blade Island also prepared for deteriorating conditions associated with Milton. Boats and maritime equipment were secured, while residents prepared structures for strong winds and heavy rainfall. Increasingly rough seas restricted travel as the cyclone approached, leaving the island progressively isolated from surrounding areas.
Final preparations were completed before conditions became too hazardous for outdoor activity. Although Blade Island was affected by Milton, it avoided the catastrophic destruction experienced around Meridian and the cyclone's Category 5 landfall region.
Impact
| Rank | Arrocane | Season | Damage |
|---|---|---|---|
| 1 | 5 Arlene | 2019 | $158 billion |
| 2 | 5 Gilbert | 2020 | $129 billion |
| 3 | TS Otto | 2020 | $117 billion |
| 4 | 5 Milton | 2019 | $75 billion |
| 5 | 4 Katrina | 2019 | $59 billion |
| 6 | 3 Florence | 2019 | $45 billion |
| 7 | 4 Rita | 2019 | $37.6 billion |
| 8 | 4 Wilma | 2019 | $29.5 billion |
| 9 | 3 Bob | 2020 | $21.3 billion |
| 10 | 3 Victor | 2019 | $19.9 billion |
Arrocane Milton caused catastrophic damage across portions of southern Ardonia, particularly in and around Cydonia. Extreme winds, heavy rainfall, large waves, and coastal flooding accompanied the cyclone as it passed through the region. The most severe destruction occurred around Meridian, where Milton made two Category 5 landfalls with maximum sustained winds of 165 mph (266 km/h).
Milton caused approximately $75 billion (2019 USD) in damage and 437 confirmed fatalities. An additional 190 people were reported missing. The overwhelming majority of the economic losses and fatalities occurred in Meridian, although significant impacts were also recorded elsewhere in Cydonia.
Cydonia
Milton produced widespread effects across southern Cydonia and several of its islands. The cyclone's large and exceptionally intense circulation brought damaging winds well beyond its immediate center, while heavy rainfall and coastal flooding affected communities near its track. Conditions were particularly severe around Meridian, where the center of Milton crossed the region twice at Category 5 intensity.
Trinity Islands
The Trinity Islands were affected by Milton as the cyclone moved through the waters south of Cydonia. Strong winds and rough seas affected the islands, damaging vegetation and exposed structures and disrupting maritime activity. Large waves affected portions of the shoreline, while debris and fallen vegetation temporarily obstructed travel in some areas.
Despite the strength of Milton nearby, the Trinity Islands escaped the catastrophic conditions later experienced around Meridian. Damage across the islands was estimated at approximately $10 million, and no fatalities were reported.
Cydonia Mines
The Cydonia Mines experienced damaging winds and heavy rainfall from Milton. Infrastructure associated with the mines was damaged, while fallen debris and flooding disrupted access to portions of the area. Operations were severely disrupted during and immediately following the cyclone.
Although economic losses were comparatively limited at approximately $500,000, the human impact was considerably greater. Twenty-three people were killed in the area, making the Cydonia Mines one of the deadliest locations affected by Milton outside Meridian.
Po'Hatu
Milton produced severe conditions on Po'Hatu. Strong winds damaged structures throughout the island's settlement, while trees and other vegetation were uprooted or stripped. Large waves and coastal flooding affected exposed portions of the island, and heavy rainfall contributed to additional flooding.
Damage on Po'Hatu was estimated at approximately $1.6895 billion. Eleven people were killed as a result of the cyclone. Transportation and communication with surrounding areas were disrupted following Milton's passage, complicating initial recovery operations.
Meridian
Meridian, the island capital of Cydonia, sustained by far the most catastrophic effects from Milton. The city and surrounding portions of the island were subjected to the inner core of the arrocane as Milton made two Category 5 landfalls in the region. Extreme winds caused widespread structural damage, while coastal flooding, large waves, heavy rainfall, and wind-blown debris compounded the destruction.
During Milton's first Category 5 landfall, the cyclone possessed maximum sustained winds of 165 mph (266 km/h) and a central pressure of 920 mbar (hPa; 27.17 inHg). Extensive damage occurred across the affected portion of Meridian. Numerous buildings sustained major roof and exterior damage, while more vulnerable structures were heavily damaged or destroyed. Trees and vegetation were extensively damaged, and debris blocked roads throughout portions of the city. Electrical, transportation, and other infrastructure sustained widespread disruption.
The first phase of Milton's impact on Meridian caused approximately $25.3 billion in damage and 159 fatalities. Conditions remained dangerous as the cyclone continued through the area, with flooding and debris significantly hindering movement and emergency response.
Milton subsequently made a second Category 5 landfall in the Meridian area with maximum sustained winds of 165 mph (266 km/h) and a slightly lower central pressure of 919 mbar (hPa; 27.14 inHg). The second landfall caused even greater destruction, including additional damage to structures and infrastructure that had already been affected during the initial passage. Extreme winds again swept across portions of the capital, while continued rainfall and coastal flooding compounded existing damage.
The second phase of Milton's impact caused approximately $47.9995 billion in additional damage and 241 fatalities. Combined, the two impacts resulted in approximately $73.2995 billion in damage and 400 deaths in Meridian alone.
The destruction in Meridian accounted for approximately 97.7% of Milton's total economic losses and 91.5% of its confirmed fatalities. Large portions of the city's infrastructure were left damaged or inoperable, while debris, flooding, and transportation disruptions complicated search-and-rescue operations immediately following the cyclone. The concentration of destruction in Cydonia's capital made Meridian the center of the broader disaster caused by Milton.
Crescent Beach
Crescent Beach experienced strong winds, heavy rainfall, and dangerous coastal conditions associated with Milton. Large waves affected the shoreline, while wind and water damaged exposed property and vegetation. Debris and localized flooding also disrupted access through portions of the area.
Property damage at Crescent Beach was estimated at approximately $100,000. Despite the comparatively limited economic losses, three people were killed during the cyclone.
Blade Island
Blade Island was affected by Milton's outer circulation as the cyclone moved through the region. Strong winds and rough seas caused localized damage to structures, vegetation, and maritime property, while heavy rainfall affected portions of the island.
Damage on Blade Island was estimated at approximately $400,000. No fatalities were reported.
Aftermath
In the immediate aftermath of Arrocane Milton, search-and-rescue operations began throughout the affected portions of southern Ardonia. The greatest difficulties were encountered in and around Meridian, where the two Category 5 landfalls had caused widespread destruction and severe disruption to transportation and other infrastructure. Debris, flooding, damaged structures, and blocked routes complicated access to heavily affected areas during the initial response.
With 437 confirmed fatalities and an additional 190 people reported missing, locating survivors and accounting for missing residents became a major focus of the immediate response. Emergency operations also focused on assisting displaced residents, clearing transportation routes, and restoring access to communities affected by the cyclone. Damage assessments continued as conditions improved and previously inaccessible areas could be reached.
Outside Meridian, recovery operations were undertaken on Po'Hatu, the Trinity Islands, and at the Cydonia Mines. Crescent Beach and Blade Island also underwent cleanup and repairs following Milton's passage. The scale of the disaster in Meridian, however, resulted in the majority of resources and recovery efforts being concentrated around the capital and surrounding areas.
Recovery
Recovery from Milton was extensive, particularly in Cydonia. Initial efforts centered on debris removal, restoration of transportation routes and essential infrastructure, and the stabilization of damaged structures. The destruction in Meridian represented the overwhelming majority of Milton's economic impact, with approximately $73.2995 billion of the cyclone's $75 billion in losses occurring in the capital region.
The successive impacts on Meridian complicated the recovery process. Areas damaged during Milton's first Category 5 landfall were subjected to another period of extreme winds during the second landfall, leaving some structures and infrastructure exposed to repeated damage. Flooding and accumulated debris further impeded movement through affected portions of the city. As immediate search-and-rescue operations transitioned into longer-term recovery, attention increasingly shifted toward restoring infrastructure and repairing or replacing severely damaged buildings.
Recovery also continued in other affected communities. On Po'Hatu, repairs focused on damaged structures and infrastructure while access to the island was restored. Cleanup operations occurred throughout the Trinity Islands following wind and coastal damage. At the Cydonia Mines, efforts were made to restore access and resume operations following the disruption caused by the cyclone. Crescent Beach and Blade Island required comparatively limited reconstruction because their monetary losses were substantially lower than those recorded in Cydonia.
Milton's $75 billion damage total made the cyclone one of the costliest disasters in Ardonia's recorded history at the time. The concentration of approximately 97.7% of those losses in Meridian resulted in a prolonged rebuilding effort in and around the capital. The disaster also left a substantial human toll, with 400 of Milton's 437 confirmed fatalities occurring in Meridian alone.
Retirement
Due to the catastrophic destruction and loss of life caused by the arrocane, the name Milton was retired following the 2019 season and will not be used again for an Ardonia tropical cyclone. It was one of eight names retired following the season, alongside Arlene, Camille, Florence, Katrina, Rita, Victor, and Wilma.
The name Mason was selected to replace Milton on the rotating naming lists and will be used when the corresponding list is next utilized.
Records
| Rank | Arrocane | Season | Windspeed |
|---|---|---|---|
| 1 | 5 Milton | 2019 | 200 mph (325 km/h) |
| 2 | 5 Gilbert | 2020 | 195 mph (315 km/h) |
| 3 | 5 Arlene | 2019 | 180 mph (285 km/h) |
| 4 | 5 Katrina | 2019 | 175 mph (280 km/h) |
| 5 | 5 "Port Kazu" | 1865 | 165 mph (270 km/h) |
| 6 | 5 Lee | 2020 | 160 mph (260 km/h) |
| 7 | 4 Michael | 2020 | 155 mph (250 km/h) |
| 8 | 4 Florence | 2019 | 150 mph (240 km/h) |
| 9 | 4 "Trinity Islands" | 1865 | 145 mph (230 km/h) |
| 4 Wilma | 2020 | 145 mph (230 km/h) |
Arrocane Milton established numerous intensity and rapid-intensification records during its development in July 2019. Several of these records remained unsurpassed through the 2020 season, including the highest maximum sustained winds, lowest minimum central pressure, greatest 24-hour increase in maximum sustained winds, and greatest 24-hour decrease in central pressure recorded in the Ardonia basin.
Intensity
Prior to Milton, Arrocane Arlene held the record for the strongest tropical cyclone by maximum sustained winds, having reached 180 mph (290 km/h) in May 2019. Arlene also held the record for the lowest central pressure, at 899 mbar (hPa; 26.55 inHg).
Milton first surpassed the pressure record at 18:00 UTC on July 14, when its central pressure fell to 895 mbar (hPa; 26.43 inHg) while its maximum sustained winds reached 175 mph (282 km/h). At this time, Arlene continued to hold the record for maximum sustained winds.
Six hours later, at 00:00 UTC on July 15, Milton reached its peak intensity with maximum sustained winds of 200 mph (320 km/h) and a minimum central pressure of 865 mbar (hPa; 25.54 inHg). Milton thereby surpassed Arlene's maximum sustained wind record by 20 mph (32 km/h) and lowered the minimum-pressure record by 34 mbar.
Milton's 200 mph (320 km/h) maximum sustained winds and 865 mbar minimum pressure remained the highest winds and lowest pressure, respectively, recorded in the Ardonia basin through the 2020 season.
Following its record peak, Milton weakened before undergoing a second period of intensification. At 06:00 UTC on July 16, it reached a secondary peak of 185 mph (298 km/h) and 900 mbar (hPa; 26.58 inHg). Although below Milton's own record peak, the secondary maximum was itself stronger by sustained winds than any tropical cyclone recorded prior to Milton.
Rapid intensification
Milton underwent the most extreme 24-hour intensification documented in the Ardonia tropical cyclone database. At 00:00 UTC on July 14, Milton was a Category 1 arrocane with maximum sustained winds of 75 mph (121 km/h) and a central pressure of 986 mbar (hPa; 29.12 inHg). Twenty-four hours later, Milton had reached its record peak of 200 mph (320 km/h) and 865 mbar (hPa; 25.54 inHg).
During this period, Milton's maximum sustained winds increased by 125 mph (201 km/h), while its central pressure fell by 121 mbar. Both values established records for the greatest change over a 24-hour period in the Ardonia basin.
Before Milton, the largest 24-hour increase in sustained winds had been 80 mph (130 km/h), recorded by Arrocane Arlene in May 2019. Milton exceeded that record by 45 mph (72 km/h). Arlene had also held the 24-hour pressure-fall record at 71 mbar; Milton exceeded that value by 50 mbar.
Milton's 125 mph (201 km/h) 24-hour wind increase and 121 mbar 24-hour pressure fall remained the largest recorded in the basin through the 2020 season.
Landfall
Milton made two Category 5 landfalls in the Meridian region with maximum sustained winds of 165 mph (266 km/h). Central pressures of 920 mbar and 919 mbar were recorded at the respective landfalls.
At the time, the two landfalls were tied as the second-strongest tropical cyclone landfalls in the Ardonia basin by maximum sustained winds, behind only Arrocane Arlene, which had made landfall with maximum sustained winds of 175 mph (282 km/h) earlier in 2019.
Milton's landfalls remained among the strongest on record following the 2020 season, although subsequent Category 5 landfalls caused their historical ranking to decrease.
Accumulated cyclone energy
Milton generated an accumulated cyclone energy (ACE) value of 30.96. At the conclusion of Milton's lifecycle, this was the second-highest ACE generated by an individual tropical cyclone in the Ardonia basin, behind only the 1865 Port Kazu arrocane, which generated 44.28 ACE. Milton narrowly surpassed Arlene's 30.5675 ACE.
Following the 2020 season, Milton ranked third among Ardonia tropical cyclones by ACE after Arrocane Gilbert also exceeded its total.
Damage and fatalities
Milton caused approximately $75 billion (2019 USD) in damage. At the time, this made Milton the second-costliest tropical cyclone recorded in Ardonia, behind Arrocane Arlene, which caused approximately $158 billion in damage.
Milton was also responsible for 437 confirmed fatalities. At the conclusion of the cyclone, this was the second-highest death toll attributed to an Ardonia tropical cyclone in the available record, again behind Arlene, which caused 1,379 fatalities.
Through the 2020 season, Milton remained the fourth-costliest tropical cyclone in the Ardonia basin and the fourth-deadliest. Its $75 billion damage total was subsequently surpassed by Arrocane Gilbert and Tropical Storm Otto, while its death toll was surpassed by Gilbert and Arrocane Lee.
See also
- 2019 Ardonia arrocane season
- 1865 Ardonia arrocane season
- Ardonia arrocane wind scale
- List of Category 5 Ardonia arrocanes
- List of Ardonia arrocane records
- Arrocane Arlene – Previously the strongest tropical cyclone on record by maximum sustained winds and minimum central pressure before Milton
- Arrocane Katrina – An exceptionally intense Category 5 arrocane that occurred simultaneously with Milton
- Arrocane Gilbert – Later became the second-strongest tropical cyclone on record, approaching Milton's intensity with winds of 195 mph and a minimum pressure of 880 mbar
- Arrocane Lee – A Category 5 arrocane that later became one of Milton's closest competitors in intensity and rapid intensification
- 1865 Port Kazu arrocane – Held the record for highest accumulated cyclone energy of any individual Ardonia tropical cyclone and remained ahead of Milton's 30.96 ACE