2016 Pacific hurricane season

2016 Pacific hurricane season
Season summary map
Seasonal boundaries
First system formed	January 7, 2016 (record earliest)
Last system dissipated	Season ongoing
Strongest storm
Name	Blas and Lester
• Maximum winds	140 mph (220 km/h)
• Lowest pressure	947 mbar (hPa; 27.97 inHg)
Seasonal statistics
Total depressions	20
Total storms	19
Hurricanes	12
Major hurricanes (Cat. 3+)	5
Total fatalities	9 total
Total damage	None
Related article
Timeline of the 2016 Pacific hurricane season

The 2016 Pacific hurricane season is a currently ongoing season which marked the first time since 2011 in which no tropical cyclones occurred in May, and the first time since 2007 that no named storms formed in the month of June. The season officially started on May 15 in the East Pacific Ocean, and on June 1 in the Central Pacific; they will both end on November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Pacific basin. However, as illustrated by Hurricane Pali, which became the earliest Central Pacific tropical cyclone to form on record, the formation of tropical cyclones is possible at any time of the year.

Despite having a very inactive start, this season tied the record for most named storms for the month of July with the 1985 and 2015 seasons, each also having seven named storms on the same month.

Seasonal forecasts

Record		Named storms	Hurricanes	Major hurricanes	Ref
Average (1981-2010):		15.4	7.6	3.2
Record high activity:		1992: 27	2015: 16	2015: 11
Record low activity:		2010: 8	2010: 3	2003: 0
Date	Source	Named storms	Hurricanes	Major hurricanes	Ref
May 6, 2016	SMN	17	9	4
May 27, 2016	NOAA	13–20	6–11	3–6
	Area	Named storms	Hurricanes	Major hurricanes	Ref
Actual activity:	EPAC	17	10	5
Actual activity:	CPAC	2	2	0
Actual activity:		19	12	5

On May 6, 2016, the Servicio Meteorológico Nacional (SMN) issued its first outlook for the Pacific hurricane season, forecasting a near average season with 17 named storms, 9 hurricanes, and 4 major hurricanes. On May 27, NOAA released their outlook, forecasting 13-20 named storms, 6-11 hurricanes, and 3-6 major hurricanes. NOAA admitted that this season would be difficult to predict because of changing conditions, but both organizations cited a dissipating El Niño and the formation of a La Niña event, which resulted in the prediction of a near-normal season in both basins. In the Central Pacific, about four to seven cyclones would form or enter within the basin, citing an equal 40% chance of an above-normal or near-normal season.

Seasonal summary

Main article: Timeline of the 2016 Pacific hurricane season

Four simultaneous tropical cyclones existed on July 22. From left to right: Darby, Estelle, Eight-E (which would soon become Georgette), and Frank

The Accumulated Cyclone Energy (ACE) index for the 2016 Pacific hurricane season, as of Paine's final advisory, is 162.0375 units (123.2925 units from the Eastern Pacific and 38.745 units from the Central Pacific).

As the new year began, Tropical Depression Nine-C from the previous season was in the Central Pacific, but dissipated later that day. Nine-C's remnants led to the formation of Pali on January 7, two days before Tropical Storm Winona's formation in 1989. Pali subsequently surpassed Hurricane Ekeka's record and became a hurricane on January 11. When Pali reached a peak intensity of 100 mph, it beat Winona to become the strongest January tropical cyclone east of the dateline. Pali also reached a record low latitude of 2.0°N, beating Nine-C's record of 2.2°N to become the southern most tropical cyclone on record in the western hemisphere. Although Pali formed in January, the season kicked off to a very inactive start; for the first time since 2011, no tropical depressions or storms formed during the month of May, and no named storms formed during June since 2007.

Agatha formed on July 2, the latest first named storm in the eastern Pacific proper since 1969. Despite this, the season set a record for the most number of storms during the first half of July. When Georgette formed on July 21, it became the seventh named storm to form in the month of July; equaling the previous record set in 1985 and 2015 for the most active July since reliable records began. And when Frank became a hurricane (after Georgette did so), it marked a record-high 5 hurricanes in July. Finally, when Tropical Depression Nine-E formed in late July, it became the record-tying eighth tropical cyclone to form in the month (also tied with 1985). Nine-E eventually became Howard on August 1, just short of setting a new record. Activity in August, was slightly less active than July. Ivette and Kay did not affect land. Lester moved north of Hawaii, while Madeline threatened the Big Island at hurricane strength, though dodged the island to the south. Javier and Newton followed similar paths close to the Mexican coast, with both making landfall in the Baja California Peninsula in August and early September respectively.

Storms

Hurricane Pali

Category 2 hurricane (SSHWS)
Duration	January 7 – January 15
Peak intensity	100 mph (155 km/h) (1-min); 977 mbar (hPa)

At the onset of 2016, the dissipating Tropical Depression Nine-C left behind a large area of moisture across the equatorial Pacific. A powerful westerly wind burst—a feature commonly associated with strong El Niño events—spurred cyclogenesis within the disturbance, resulting in the formation of an area of low pressure. Fueled by unusually high sea surface temperatures, estimated at 29.5 °C (85.1 °F), the system gradually coalesced into a tropical depression on January 7. This marked the earliest formation of a tropical cyclone on record in the Central Pacific, surpassing 1989's Tropical Storm Winona by six days. It soon strengthened into a tropical storm, receiving the name Pali, becoming the earliest such system in the northeastern Pacific on record. Then, on January 11, Pali strengthened into a Category 1 hurricane, becoming the earliest hurricane on record in the northeast Pacific basin, beating the previous record set by Hurricane Ekeka in 1992. Pali reached a minimum latitude of 2.0°N, making it the lowest latitude tropical cyclone on record in the Western Hemisphere, surpassing Tropical Depression Nine-C which attained a minimum latitude of 2.2°N just two weeks prior. On January 12, Pali strengthened further into a Category 2 hurricane. During the next few days, Pali rapidly weakened while turning back towards the south-southeast, before weakening into a remnant low early on January 15.

Unrelated to Pali, Hurricane Alex developed over the Atlantic during the last few days of Pali's existence. This marked the first known occurrence of simultaneous January tropical cyclones between the two basins.

Tropical Depression One-E

Tropical depression (SSHWS)
Duration	June 6 – June 8
Peak intensity	35 mph (55 km/h) (1-min); 1006 mbar (hPa)

On June 4, the National Hurricane Center began monitoring an area for possible development. Over the next few days, the chances of the storm forming were low. Unexpectedly, however, on June 6, advisories began to be issued on Tropical Depression One-E. This led the Government of Mexico to issue a Tropical Storm Watch for its coast. On June 7 the storm weakened slightly thus the watch was removed. Early on June 8, the storm made landfall in Mexico near the Gulf of Tehuantepec and dissipated.

As a precautionary measure, temporary shelters were opened across Chiapas. The depression caused minor damage across Oaxaca, primarily within the Salina Cruz municipality. Heavy rains led to some street flooding and a sinkhole that damaged one home.

Tropical Storm Agatha

Tropical storm (SSHWS)
Duration	July 2 – July 5
Peak intensity	50 mph (85 km/h) (1-min); 1002 mbar (hPa)

On June 30, the National Hurricane Center began to monitor an area for possible formation. On July 1, organization unexpectedly increased. Seven hours later, early on July 2, the tropical disturbance strengthened into Tropical Depression Two-E. The system quickly organized, and later that day, the NHC upgraded Two-E into Tropical Storm Agatha. Agatha slightly strengthened to peak intensity on July 3. Winds topped off at 45 mph. Soon after, Agatha weakened slightly, with winds lowering to 40 mph later that day. The storm continued westwards over the next two days. Early on July 5, Agatha became post-tropical.

With Agatha's naming nearly two months into the season (on July 2), the storm is the second-latest first named storm in the eastern Pacific proper — only Tropical Storm Ava, which reached tropical storm intensity on July 3, 1969, formed later in the season.

Hurricane Blas

Category 4 hurricane (SSHWS)
Duration	July 3 – July 10
Peak intensity	140 mph (220 km/h) (1-min); 947 mbar (hPa)

On June 27, the NHC began to monitor a tropical wave moving over Central America for possible development. A low pressure area formed south of Mexico on June 30, and early on July 3, the storm gained enough organization to be designated Tropical Depression Three-E. Six hours later, amid a favorable environment with high sea surface temperatures and decreasing vertical wind shear, it intensified into Tropical Storm Blas. Steady strengthening ensued, and Blas intensified into a hurricane on July 4. Intensification stalled for the remainder of that day as dry air wrapped into the circulation; however, Blas began to rapidly deepen on July 5, and it became the first major hurricane of the season that evening. Blas quickly reached peak intensity at Category 4 strength on July 6. Blas weakened to a Category 3 hurricane soon after, before transitioning into an annular tropical cyclone and maintaining intensity. However, Blas soon passed over decreasing sea surface temperatures, resulting in a slow weakening trend; Blas weakened below major hurricane status late on July 7, and down to a Category 1 hurricane by the next day. Blas further degraded to a tropical storm on July 9, as weakening accelerated amid a stable air mass and increasing southwesterly shear. Over sea surface temperatures of 24 °C (75 °F), Blas weakened to a tropical depression on July 10, and degenerated into a post-tropical cyclone soon after.

Moisture associated with the remnants of Blas brought showers to Hawaii. Peak daily rainfall totals primairly ranged between 1 to 2 in (25 to 50 mm) and did not cause any serious flooding.

Hurricane Celia

Category 2 hurricane (SSHWS)
Duration	July 6 – July 16
Peak intensity	100 mph (155 km/h) (1-min); 972 mbar (hPa)

On June 27, the NHC began monitoring a tropical wave over Central America. The wave entered the East Pacific the following day, eventually gaining sufficient organization to be declared a tropical depression by 21:00 UTC on July 6. The newly formed cyclone initially struggled to intensify with upwelling resultant from Hurricane Blas, but a formative central dense overcast and several spiral bands prompted an upgrade to Tropical Storm Celia by 15:00 UTC on July 8. Celia began to intensify after moving into warmer waters, obtaining Category 1 hurricane intensity by 21:00 UTC on July 10 and peaking as a Category 2 hurricane with winds of 110 mph (155 km/h) the next afternoon. Thereafter, progressively cooler waters caused the system to weaken: it fell below hurricane intensity by 09:00 UTC on July 13, weakened to a tropical depression by 21:00 UTC on July 15 after entering the Central Pacific, and degenerated into a remnant low well east-northeast of Hawaii six hours later.

Although the remnants of Celia passed north of Hawaii, it disrupted the typical trade winds, resulting in higher humidity across the island group and brief, but heavy showers over central Oahu and the windward slopes of Maui and the Big Island on July 18.

Hurricane Darby

Category 3 hurricane (SSHWS)
Duration	July 11 – July 26
Peak intensity	115 mph (185 km/h) (1-min); 962 mbar (hPa)

Main article: Hurricane Darby (2016)

In the first two weeks of July, five low pressure systems formed in the Eastern Pacific. The fourth of these was first noted by the National Hurricane Center on July 9; it was located in a favorable environment, and was expected to develop into a tropical storm. On July 11, the low was upgraded into Tropical Depression Five-E. On July 12, Five-E intensified into a tropical storm, and was assigned the name Darby; the next day it attained hurricane status. It later strengthened into a Category 2 hurricane on July 15. On July 16, despite traveling over cooler waters, Darby unexpectedly became a Category 3 hurricane. However, 6 hours later, Darby weakened back to a Category 2. Over the next four days, Darby gradually degraded over cooler waters as the storm moved westwards, towards Hawaii. But, as it advanced closer towards the area, it strengthened again, prompting several Tropical Storm warnings and watches to be issued for the Hawaiian Islands. At 00:00 UTC July 24, it made landfall near Pahala of the Big Island. Crossing the island as a minimal tropical storm, it was the first to do so since Hurricane Iselle in 2014. Darby gained strength because the waters around Hawaii were kind of warm they were hot enough for a tropical storm to remain a tropical storm and gather some strength before hitting Oahu. tropical storm Darby also brought very heavy rain, strong winds big waves just like in hurricane iselle, lightning and loud thunder, lastly it bought very severe downpours. Tropical storm Darby also bought lots of flooding to the freeways on Oahu island and a little bit of damage to other islands. Tropical storm Darby also bought flooding to a mall on Oahu. Lastly Darby bought a whole lot of brown water.

Tropical Storm Estelle

Tropical storm (SSHWS)
Duration	July 15 – July 22
Peak intensity	70 mph (110 km/h) (1-min); 990 mbar (hPa)

In the line of continuous tropical cyclones with the same path, the low that would become Estelle began to be monitored on July 14. Less than a day after being designated as a low pressure system on July 15, it was upgraded to Tropical Depression Six-E. Early on July 16, the fifth tropical storm of the Eastern Pacific season formed, being assigned the name Estelle. By July 18, Estelle had strengthened into a 70 mph (110 km/h) storm, just below hurricane status, however, it slightly weakened afterwards. Estelle continued to maintain its strength, however, by July 20, the storm was not forecast to strengthen into a hurricane and began degrading over cooler water northeast of Hawaii. On July 22, Estelle weakened into a 40 mph (65 km/h) storm and degraded into a remnant low later that day.

Hurricane Frank

Category 1 hurricane (SSHWS)
Duration	July 21 – July 28
Peak intensity	85 mph (140 km/h) (1-min); 979 mbar (hPa)

On July 16, the NHC noted that an area of low pressure was forecast to form south of Mexico in a few days. A broad area of low pressure formed well south-southeast of Acapulco, Mexico three days later, eventually organizing into Tropical Storm Frank by 21:00 UTC on July 21. Steered northwest and then west-northwest, the cyclone steadily intensified within a favorable environment; by July 25, however, Frank passed over cooler waters resultant from previous cyclones, which caused weakening. The system re-intensified after entering warm waters, becoming the record-setting fifth hurricane during the month by 15:00 UTC on July 26 and peaking with winds of 85 mph (140 km/h) twelve hours later. The negative effects of cooler waters began to impede on the system shortly thereafter, causing Frank to weaken to a tropical storm by 15:00 UTC on July 27, fall to a tropical depression by 15:00 UTC on July 28, and degenerate into a remnant low six hours later.

The outer rainbands of Frank brought heavy rains to Nayarit. In Tepic, several neighborhoods were flooded and 135 homes were damaged. A total of 200 families were rendered homeless, and forced to seek shelter.

Hurricane Georgette

Category 4 hurricane (SSHWS)
Duration	July 21 – July 27
Peak intensity	130 mph (215 km/h) (1-min); 952 mbar (hPa)

On July 15, the NHC noted that an area of low pressure was forecast to form well south of Mexico early the subsequent week. An area of disturbed weather became established south of the Gulf of Tehuantepec the following day, organizing sufficiently to be deemed a tropical depression by 21:00 UTC on July 21. Despite moderate northeasterly wind shear, the depression intensified into Tropical Storm Georgette by 15:00 UTC on July 22 and was further upgraded to a Category 1 hurricane by 03:00 UTC on July 24. Over a 24-hour period ending at 03:00 UTC July 25, the cyclone's maximum winds increased from 75 mph (120 km/h) to a peak of 130 mph (215 km/h) as convection became more symmetric and an eye cleared. Progressively cooler waters and a more stable environment, however, caused Georgette to begin weakening soon thereafter: it fell below hurricane intensity by 15:00 UTC on July 26 and further degenerated into a remnant low well west-southwest of Baja California a day later.

Remnant moisture from Georgette brought heavy rain to Oahu on July 31 but caused only minor flooding.

Tropical Storm Howard

Tropical storm (SSHWS)
Duration	July 31 – August 3
Peak intensity	60 mph (95 km/h) (1-min); 999 mbar (hPa)

On July 29, the NHC noted that an area of low pressure was forecast to form well south of Mexico. A large mass of convection developed south of Acapulco, Mexico two days later, eventually coalescing into the record-tying eighth tropical cyclone to form in the East Pacific during the month of July. The depression intensified into Tropical Storm Howard by 09:00 UTC on August 1, and although the cyclone struggled with westerly wind shear and upwelling, it ultimately attained peak winds of 60 mph (95 km/h) a day later. Continuing on its west-northwest path, Howard entered cooler waters and a more stable environment, and the combination of the two factors caused the cyclone to degenerate into a remnant low well west of Baja California by 21:00 UTC on August 3.

Tropical Storm Ivette

Tropical storm (SSHWS)
Duration	August 2 – August 8
Peak intensity	60 mph (95 km/h) (1-min); 1000 mbar (hPa)

On July 25, the NHC highlighted an area well southwest of Baja California for tropical cyclone formation potential over the following week. A broad area of low pressure formed south of Manzanillo, Mexico two days later, eventually gaining ample organization to be declared a tropical depression by 21:00 UTC on August 2. The depression was upgraded to Tropical Storm Ivette twelve hours later as banding increased. Despite initial forecasts calling for a strong Category 1 hurricane, moderate wind shear only allowed the cyclone to attain peak winds of 60 mph (95 km/h). Continued wind shear and a more stable environment caused Ivette to weaken to a tropical depression by 03:00 UTC on August 8 as it entered the Central Pacific, and 18 hours later it degenerated into a remnant low well east of Hawaii.

Tropical Storm Javier

Tropical storm (SSHWS)
Duration	August 7 – August 9
Peak intensity	65 mph (100 km/h) (1-min); 998 mbar (hPa)

On August 2, the NHC noted that an area of low pressure in association with the remnants of Hurricane Earl could further develop into a tropical cyclone off the southwestern coastline of Mexico over subsequent days. An area of disturbed weather formed south of the Gulf of Tehuantepec two days later, eventually acquiring sufficient organization to be declared a tropical depression by 09:00 UTC on August 7. Surface observations from Manzanillo, Mexico by 16:00 UTC indicated that the depression had intensified into Tropical Storm Javier. Steered northwest by a mid-level ridge over Texas, Javier initially struggled to intensify as a result of light easterly wind shear; by August 8, however, a reconnaissance aircraft found that the cyclone had strengthened to reach peak winds of 65 mph (100 km/h). Drier air, increased wind shear, and land interaction caused Javier to quickly weaken thereafter as it passed just offshore of Baja California: it weakened to a tropical depression by 15:00 UTC on August 9 and degenerated to a remnant low six hours later.

The outer fringes of the storm brought flooding to Colima. Landslides occurred along Lazaro Cardenas and Mexican Federal Highway 200. In Manzanillo, a bridge collapsed and numerous federal highways were damaged while the city's port closed due to high waves. Shortly after attaining tropical storm status, a "green" alert was issued for the multiplicity of Los Cabos. Officials opened 18 shelters across the southern Baja California Peninsula, while also closing ports. When Javier was forecast to become a hurricane, an "orange" alert was issued for the entire state of Baja California Sur. In the municipalities of La Paz and Los Cabos, authorities delayed the start of the school year. Six flights were canceled to and from San Jose del Cabo. In Sonora, a "blue" alert was declared.

Tropical Storm Kay

Tropical storm (SSHWS)
Duration	August 18 – August 23
Peak intensity	50 mph (85 km/h) (1-min); 1000 mbar (hPa)

Late on August 15, the NHC began highlighting an area south of Baja California for the potential for tropical cyclone development over the subsequent week. A broad area of low pressure developed well south of Manzanillo, Mexico the following day, steadily organizing to be deemed a tropical depression by 21:00 UTC on August 18. Despite modest northeasterly shear, the depression intensified into Tropical Storm Kay twelve hours later on its northwesterly trek. Continuing steadily west-northwest, wind shear never relaxed as predicted, resulting in only modest strengthening, though by August 21, Kay had attained peak intensity. Over the next two days, Kay moved into cooler water, resulting in a quick degradation of convection. By August 23, higher amounts of wind shear weakened Kay into a remnant low.

Hurricane Lester

Category 4 hurricane (SSHWS)
Duration	August 24 – September 7
Peak intensity	140 mph (220 km/h) (1-min); 947 mbar (hPa)

On August 24, a well organized low-pressure system was upgraded into Tropical Depression Thirteen-E. Entering a favorable environment, the depression quickly intensified into Tropical Storm Lester. Moving steadily west-northwestwards, intensification continued, and Lester rapidly intensified on August 26 into a hurricane. Intensification continued throughout the day, with Lester reaching Category 2 strength the following day. By August 29, Lester had strengthened into the fourth major hurricane of the season. On August 30, Lester started to go through a weakening stage, at which point the storm began accelerating towards Hawaii. Late on August 30 Lester re-intensified to a Category 4 hurricane. The storm did not maintain this intensity, however, and on the next day dropped below major hurricane status as its eye filled with clouds. On September 1 Lester cleared its eye and once again became a Category 3 hurricane. Lester also moved very close to the Hawaiian islands but passed safely to the east and quickly lost strength over cooler waters.

Hurricane Madeline

Category 4 hurricane (SSHWS)
Duration	August 26 – September 3
Peak intensity	130 mph (215 km/h) (1-min); 950 mbar (hPa)

On August 21, the NHC noted that an area of low pressure could form well south-southwest of the southern tip of Baja California over subsequent days. An area of disturbed weather developed a few hours later, slowly organizing into a tropical depression by 21:00 UTC on August 26. With an impressive spiral band and improved inner core, the depression was upgraded to Tropical Storm Madeline six hours later. Steered northwestward into the central Pacific, the cyclone initially struggled with moderate wind shear; however, an eye feature developed within the storm's central dense overcast by 09:00 UTC on August 29, prompting an upgrade to hurricane intensity. Madeline began a period of rapid intensification thereafter, and with a cloud-filled eye surrounded by a ring of deep convection, was upgraded to a Category 3 hurricane by 21:00 UTC before ultimately peaking as a 130 mph (215 km/h) Category 4 hurricane early the next day.

An upper-level trough responsible for the cyclone's northwest trajectory moved north of the Hawaiian Islands on August 30, causing a subtropical ridge to the north of the cyclone to build southward. As a result, Madeline turned west and then southwest. Under increasing wind shear, Madeline's cloud pattern became less rounded and the storm's eye became obscured, signaling its fall below major hurricane intensity. The continued effect of strong westerly shear weakened Madeline to a tropical storm by 00:00 UTC on September 1, to a tropical depression six hours later, and further to a remnant low by 21:00 UTC on September 2. Madeline brought just a few damage and flooding to the big island of Hawaii.

Hurricane Newton

Category 1 hurricane (SSHWS)
Duration	September 4 – September 7
Peak intensity	90 mph (150 km/h) (1-min); 979 mbar (hPa)

Main article: Hurricane Newton (2016)

On August 27, the National Hurricane Center (NHC) first mentioned the potential for low pressure area to develop south of Mexico as an area for tropical cyclogenesis. An area of disturbed weather formed on August 31 offshore western Guatemala, which developed into a low-level trough the next day. Favorable environmental conditions allowed the system to organize and develop a distinct low pressure area on September 2, which produced a widespread area of disorganized thunderstorms. A circulation began organizing within the system, leading to the NHC classifying it as Tropical Depression Fifteen-E late on September 4 about 220 mi (355 km) southwest of Manzanillo, Colima.

With warm waters, moderate wind shear, and adequate moisture, the system continued to organize after formation, strengthening to Tropical Storm Newton by early on September 5. The storm moved northwestward, steered by a ridge that over Texas. Late on September 5, an eye was visible on satellite imagery, and the Hurricane Hunters observed flight-level winds of 85 mph (137 km/h); based on these observations, the NHC upgraded Newton to hurricane status. With continued low wind shear and warm waters, Newton intensified further to a peak intensity of 90 mph (150 km/h) early on September 6. That day, the large wind field and 52 mi (83 km) eye failed to organize more, and the hurricane made landfall near Cabo San Lucas, Baja California Sur, near peak intensity like Hurricane Odile did in 2014.

Rounding the western periphery of the ridge, Newton turned northward and weakened over the Baja California Peninsula. The eyewall deteriorated and fell apart while the convection waned. On September 7, Newton made a second landfall on mainland Mexico near Bahía Kino, Sonora, and weakened to tropical storm status. The storm curved to the northeast ahead of a broad trough, with increasing wind shear exposing the center from the waning convection. At 21:00 UTC on September 7, the NHC discontinued advisories on Newton, assessing that the storm degenerated into a post-tropical cyclone before crossing into southern Arizona. The residual circulation continued northeastward, dissipating by early on September 8.

Hurricane Orlene

Category 2 hurricane (SSHWS)
Duration	September 11 – September 17
Peak intensity	110 mph (175 km/h) (1-min); 967 mbar (hPa)

Hurricane Paine

Category 1 hurricane (SSHWS)
Duration	September 18 – September 21
Peak intensity	90 mph (150 km/h) (1-min); 977 mbar (hPa)

Tropical Storm Roslyn

Tropical Depression Roslyn
Current storm status Tropical depression (1-min mean)
Satellite image Forecast map
As of:	2:00 p.m. PDT (21:00 UTC) September 28
Location:	21.6°N 115.2°W / 21.6; -115.2 (Tropical Depression Roslyn) ± 20 nm About 350 mi (565 km) WSW of the southern tip of Baja California
Sustained winds:	30 kt (35 mph; 55 km/h) (1-min mean) gusting to 40 kt (45 mph; 75 km/h)
Pressure:	1007 mbar (hPa; 29.74 inHg)
Movement:	N at 6 kt (7 mph; 11 km/h)
See more detailed information.

Current storm information

As of 2:00 p.m. PDT (21:00 UTC) September 27, Tropical Depression Roslyn is located within 20 nautical miles of 21.6°N 115.2°W / 21.6; -115.2 (Roslyn), about 350 mi (565 km) west-southwest of the southern tip of Baja California. Maximum sustained winds are 30 knots (35 mph; 55 km/h), with gusts up to 40 knots (45 mph; 75 km/h). The minimum barometric pressure is 1007 mbar (hPa; 29.74 inHg), and the system is moving north at 6 knots (7 mph, 11 km/h).

For latest official information, see:

• The NHC's latest public advisory on Tropical Depression Roslyn
• The NHC's latest forecast advisory on Tropical Depression Roslyn

Hurricane Ulika

Tropical Storm Ulika
Current storm status Tropical storm (1-min mean)
Satellite image Forecast map
As of:	2:00 p.m. PDT (21:00 UTC) September 28
Location:	15.1°N 138.7°W / 15.1; -138.7 (Tropical Storm Ulika) ± 25 nm About 1,125 mi (1,810 km) ESE of Hilo, Hawaii
Sustained winds:	50 kt (60 mph; 95 km/h) (1-min mean) gusting to 60 kt (70 mph; 110 km/h)
Pressure:	1000 mbar (hPa; 29.53 inHg)
Movement:	N at 6 kt (7 mph; 11 km/h)
See more detailed information.

On September 26, the NHC upgraded a long-tracked tropical wave into Tropical Depression Nineteen-E. Within hours of formation, the depression moved into the Central Pacific and was upgraded into Tropical Storm Ulika. Ulika was upgraded into a Category 1 hurricane at 2:00 a.m. PDT (09:00 UTC) on September 28, making it the second Central Pacific hurricane and twelfth Pacific hurricane overall in 2016.

Hurricane Ulika is noted to be only one of two tropical cyclones to form in the Eastern Pacific basin, then move into the Central Pacific basin, and then back into the Eastern Pacific basin. The other known tropical cyclone to do this is Hurricane Olaf the previous year. Also, Ulika is only the sixth storm to form in the eastern pacific, but not be named until entering the central Pacific. The others were 1984's Lala, 1992's Iniki, 1994's Li, 2009's Lana and 2015's Ela. Since Ela occurred in 2015, it was the first time where two storms formed east of 140°W, but weren't named until crossing the border, that were a year apart. Coincidentally, the time between Olaf and Ulika was almost a year.

Current storm information

As of 2:00 p.m. PDT (21:00 UTC) September 28, Tropical Storm Ulika is located within 25 nautical miles of 15.1°N 138.7°W / 15.1; -138.7 (Ulika), about 1,125 mi (1,810 km) east-southeast of Hilo, Hawaii. Maximum sustained winds are 50 knots (60 mph; 95 km/h), with gusts up to 60 knots (70 mph; 110 km/h). The minimum barometric pressure is 1000 mbar (hPa; 29.53 inHg), and the system is moving north at 6 knots (7 mph, 11 km/h). Tropical-storm-force winds extend outward up to 45 miles (75 km) from the center of Ulika.

For latest official information, see:

• The NHC's latest public advisory on Tropical Storm Ulika
• The NHC's latest forecast advisory on Tropical Storm Ulika

Other storms

On August 11, the Japan Meteorological Agency (JMA) reported that a tropical depression had developed near the International Dateline about 2,000 km (1,245 mi) to the northwest of Honolulu, Hawaii. Over the next day the system moved northwestwards and was last noted before it moved into the Western Pacific basin. On September 12, the JMA had reported that another tropical depression had developed east of the International Dateline, while the CPHC assessed it as having a low chance of formation in the next 48 hours.

Storm names

The following names will be used for named storms that form in the northeastern Pacific Ocean during 2016. Retired names, if any, will be announced by the World Meteorological Organization in the spring of 2017. The names not retired from this list will be used again in the 2022 season. This is the same list used in the 2010 season, except for the name Ivette, which replaced Isis after the rise of the terrorist group of the same name. Therefore, the name Ivette was used for the first time this year.

Agatha Blas Celia Darby Estelle Frank Georgette Howard

Ivette Javier Kay Lester Madeline Newton Orlene Paine

Roslyn (active) Seymour (unused) Tina (unused) Virgil (unused) Winifred (unused) Xavier (unused) Yolanda (unused) Zeke (unused)

For storms that form in the Central Pacific Hurricane Center's area of responsibility, encompassing the area between 140 degrees west and the International Date Line, all names are used in a series of four rotating lists. The next four names slated for use are shown below.

Pali

Ulika (active)

Walaka (unused)

Akoni (unused)

Season effects

This is a table of all the storms that have formed in the 2016 Pacific hurricane season. It includes their duration, names, landfall(s), denoted in parentheses, damages, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all the damage figures are in 2016 USD.

Saffir–Simpson scale
TD	TS	C1	C2	C3	C4	C5

2016 Pacific hurricane season statistics

Storm name	Dates active	Storm category at peak intensity	Max 1-min wind mph (km/h)	Min. press. (mbar)	Areas affected	Damage (USD)	Deaths	Ref(s)
Pali	January 7 – 15	Category 2 hurricane	100 (155)	977	None	None	None
One-E	June 6 – 8	Tropical depression	35 (55)	1006	Southwestern Mexico	Minor	None
Agatha	July 2 – 5	Tropical storm	50 (85)	1002	None	None	None
Blas	July 3 – 10	Category 4 hurricane	140 (220)	947	Hawaii	None	None
Celia	July 6 – 16	Category 2 hurricane	100 (155)	972	Hawaii	None	None
Darby	July 11 – 26	Category 3 hurricane	115 (185)	962	Hawaii	Unknown	None
Estelle	July 15 – 22	Tropical storm	70 (110)	990	None	None	None
Frank	July 21 – 28	Category 1 hurricane	85 (140)	979	Baja California Peninsula, Nayarit	None	None
Georgette	July 21 – 27	Category 4 hurricane	130 (215)	952	Hawaii	None	None
Howard	July 31 – August 3	Tropical storm	60 (95)	999	None	None	None
Ivette	August 2 – 8	Tropical storm	60 (95)	1000	None	None	None
Javier	August 7 – 9	Tropical storm	65 (100)	998	Western Mexico, Northwestern Mexico, Baja California Peninsula	Unknown	None
Kay	August 18 – 23	Tropical storm	50 (85)	1000	None	None	None
Lester	August 24 – September 7	Category 4 hurricane	140 (220)	947	Hawaii	None	None
Madeline	August 26 – September 3	Category 4 hurricane	130 (215)	950	Hawaii	None	None
Newton	September 4 – 7	Category 1 hurricane	90 (150)	979	Baja California Peninsula, Northwestern Mexico, Southwestern United States	Unknown	9
Orlene	September 11 – 17	Category 2 hurricane	110 (175)	967	None	None	None
Paine	September 18 – 21	Category 1 hurricane	90 (150)	977	Baja California Peninsula, Southwestern United States	Unknown	None
Roslyn	September 25 – present	Tropical storm	50 (85)	1000	None	None	None
Ulika	September 26 – present	Category 1 hurricane	75 (120)	992	None	None	None
Season aggregates
20 systems	January 7 – Season ongoing		140 (220)	947		Unknown	9

See also

• List of Pacific hurricanes
• List of Pacific hurricane seasons
• 2016 Atlantic hurricane season
• 2016 Pacific typhoon season
• 2016 North Indian Ocean cyclone season
• South-West Indian Ocean cyclone seasons: 2015–16, 2016–17
• Australian region cyclone seasons: 2015–16, 2016–17
• South Pacific cyclone seasons: 2015–16, 2016–17

External links

• National Hurricane Center Website
• National Hurricane Center's Eastern Pacific Tropical Weather Outlook
• Central Pacific Hurricane Center
• Servicio Meteorológico Nacional Website Template:Es icon