2020 Atlantic hurricane season
Template:Infobox hurricane season The 2020 Atlantic hurricane season is an ongoing event in the annual cycle of tropical cyclone formation. The season officially starts on June 1 and ends on November 30, dates that conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. However, the formation of tropical cyclones is possible at any time, as shown by the formation of Tropical Storm Arthur on May 16, marking the sixth consecutive year with a pre-season system.
Seasonal forecasts[edit source | edit]
|Record high activity||28||15||7||Template:Atlantic hurricane best track|
|Record low activity||4||2†||0†|||
|TSR||December 19, 2019||15||7||4|||
|CSU||April 2, 2020||16||8||4|||
|TSR||April 7, 2020||16||8||3|||
|UA||April 13, 2020||19||10||5|||
|TWC||April 15, 2020||18||9||4|||
|NCSU||April 17, 2020||18–22||8–11||3–5|||
|* June–November only|
† Most recent of several such occurrences. (See all)
Forecasts of hurricane activity are issued before each hurricane season by noted hurricane experts such as Philip J. Klotzbach and his associates at Colorado State University; and separately by NOAA forecasters.
Klotzbach's team (formerly led by William M. Gray) defined the average (1981 to 2010) hurricane season as featuring 12.1 tropical storms, 6.4 hurricanes, 2.7 major hurricanes (storms reaching at least Category 3 strength in the Saffir-Simpson Hurricane Scale), and an accumulated cyclone energy (ACE) index of 106 units. NOAA defines a season as above-normal, near-normal or below-normal by a combination of the number of named storms, the number reaching hurricane strength, the number reaching major hurricane strength, and the ACE Index.
Pre-season forecasts[edit source | edit]
On December 19, 2019, Tropical Storm Risk (TSR), a public consortium consisting of experts on insurance, risk management, and seasonal climate forecasting at University College London, issued an extended-range forecast predicting a slightly above-average hurricane season. In its report, the organization called for 15 named storms, 7 hurricanes, 4 major hurricanes, and an ACE index of 105 units. This forecast was based on the prediction of near-average trade winds and slightly warmer than normal sea surface temperatures (SSTs) across the tropical Atlantic as well as a neutral El Niño–Southern Oscillation phase in the equatorial Pacific. On April 2, 2020, forecasters at Colorado State University echoed predictions of an above-average season, forecasting 16 named storms, 8 hurricanes, 4 major hurricanes, and an ACE index of 150 units. The organization posted significantly heightened probabilities for hurricanes tracking through the Caribbean and hurricanes striking the U.S. coastline. TSR updated their forecast on April 7, predicting 16 named storms, 8 hurricanes, 3 major hurricanes, and an ACE index of 130 units. On April 13, the University of Arizona (UA) predicted a potentially hyperactive hurricane season: 19 named storms, 10 hurricanes, 5 major hurricanes, and accumulated cyclone energy index of 163 units. A similar prediction of 18 named storms, 9 hurricanes, and 4 major hurricanes was released by The Weather Company on April 15. Following that, the North Carolina State University released a similar forecast on April 17, also calling for a possibly hyperactive season with 18–22 named storms, 8–11 hurricanes and 3–5 major hurricanes.
Seasonal summary[edit source | edit]
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barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till from:16/05/2020 till:17/05/2020 color:TS text:"Arthur (TS)" barset:Hurricane width:10 align:left fontsize:S shift:(4,-4) anchor:till barset:break
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pos:(570,30) text:"(From the" pos:(618,30) text:"Saffir–Simpson scale)"
Systems[edit source | edit]
Tropical Storm Arthur[edit source | edit]
On May 12, the National Hurricane Center noted an area of low pressure was expected to develop over subsequent days northeast of the Bahamas. Early on May 14, the NHC began to monitor an area of shower and thunderstorm activity over the Straits of Florida for development. The system moved generally northeast into the region of the Bahamas while steadily organizing, becoming the season's first tropical depression at 21:00 UTC on May 16. Another reconnaissance aircraft investigated the system several hours later and found supporting evidence for the NHC to upgrade the depression to Tropical Storm Arthur at 03:00 UTC on May 17. Featuring the formation of a pre-season tropical storm, the 2020 Atlantic hurricane season became the sixth consecutive season with a tropical cyclone before the official June 1 start date.
Current storm information[edit source | edit]
As of 11:00 P.M. EDT May 16 (03:00 UTC May 17), Tropical Storm Arthur is located within 20 nautical miles of , about 125 mi (200 km) east of Melbourne, Florida, or about 505 mi (810 km) south-southwest of Cape Hatteras, North Carolina. Maximum sustained winds are 35 kn (40 mph; 65 km/h), with gusts up to 45 kn (50 mph; 85 km/h). The minimum barometric pressure is 1006 mbar (29.71 inHg), and the system is moving north-northeast at 11 kn (13 mph; 20 km/h).
For the latest official information, see:
- The NHC's latest public advisory on Tropical Storm Arthur
- The NHC's latest forecast advisory on Tropical Storm Arthur
- The NHC's latest forecast discussion on Tropical Storm Arthur
Storm names[edit source | edit]
The following list of names will be used for named storms that form in the North Atlantic in 2020. Retired names, if any, will be announced by the World Meteorological Organization during the 42nd Session of the RA IV Hurricane Committee in the spring of 2021 (in concurrence with any names from the 2019 season). The names not retired from this list will be used again in the 2026 season. This is the same list used in the 2014 season, as no names were retired from that year.
Season effects[edit source | edit]
This is a table of all of the storms that have formed in the 2020 Atlantic hurricane season. It includes their duration, names, landfall(s) – denoted by bold location names, 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 of the damage figures are in 2020 USD.
See also[edit source | edit]
- Tropical cyclones in 2020
- List of Atlantic hurricane seasons
- 2020 Pacific hurricane season
- 2020 Pacific typhoon season
- 2020 North Indian Ocean cyclone season
- South-West Indian Ocean cyclone seasons: 2019–20, 2020–21
- Australian region cyclone seasons: 2019–20, 2020–21
- South Pacific cyclone seasons: 2019–20, 2020–21
References[edit source | edit]
- "Background Information: The North Atlantic Hurricane Season". Climate Prediction Center. National Oceanic and Atmospheric Administration. August 9, 2012. Retrieved December 13, 2019. CS1 maint: discouraged parameter (link)
- Cite error: The named reference
HURDATwas invoked but never defined (see the help page).
- Mark Saunders; Adam Lea (December 19, 2019). "Extended Range Forecast for Atlantic Hurricane Activity in 2020" (PDF). University College London. Tropical Storm Risk. Retrieved December 19, 2019. CS1 maint: discouraged parameter (link)
- Phil Klotzbach; Michael Bell; Jhordanne Jones (April 2, 2020). Extended Range Forecast of Atlantic Seasonal Hurricane Activity and Landfall Strike Probability for 2020 (PDF) (Report). Colorado State University. Retrieved April 2, 2020. CS1 maint: discouraged parameter (link)
- Mark Saunders; Adam Lea (April 7, 2020). "April Forecast Update for North Atlantic Hurricane Activity in 2020" (PDF). University College London. Tropical Storm Risk. Retrieved April 8, 2020. CS1 maint: discouraged parameter (link)
- Kyle Davis; Xubin Zeng (April 14, 2020). "University of Arizona (UA) April Forecast for North Atlantic Hurricane Activity in 2020" (PDF). University of Arizona. University of Arizona. Retrieved April 14, 2020. CS1 maint: discouraged parameter (link)
- Brian Donegan; Jonathan Belles (April 16, 2020). "2020 Atlantic Hurricane Season Expected to Be More Active Than Usual, The Weather Company Outlook Says". The Weather Channel. Retrieved April 16, 2020. CS1 maint: discouraged parameter (link)
- Tracey Peake; Lian Xie (April 17, 2020). "2020 Hurricane Season Will Be Active, NC State Researchers Predict". North Carolina State University. Retrieved April 17, 2020. CS1 maint: discouraged parameter (link)
- "NOAA's Atlantic Hurricane Season Classifications". National Oceanic and Atmospheric Administration. National Hurricane Center. May 22, 2008. Retrieved December 13, 2019. CS1 maint: discouraged parameter (link)
- Andrew Latto (May 12, 2020). "NHC Graphical Outlook Archive". National Hurricane Center. Retrieved May 16, 2020. CS1 maint: discouraged parameter (link)
- Daniel Brown (May 14, 2020). "NHC Graphical Outlook Archive". National Hurricane Center. Retrieved May 16, 2020. CS1 maint: discouraged parameter (link)
- John Cangialosi (May 16, 2020). "Tropical Depression One Discussion Number 1". National Hurricane Center. Retrieved May 16, 2020. CS1 maint: discouraged parameter (link)
- Stacy Stewart (May 16, 2020). "Tropical Storm Arthur Discussion Number 2". National Hurricane Center. Retrieved May 16, 2020. CS1 maint: discouraged parameter (link)
- "Tropical Storm Arthur Forms Off Southeast Coast; Tropical Storm Watch Issued". The Weather Channel. May 16, 2020. Retrieved May 16, 2020. CS1 maint: discouraged parameter (link)
- "Why 2019's Hurricane Dorian Wasn't Retired by the World Meteorological Organization". The Weather Channel. Retrieved April 2, 2020.
[edit source | edit]
- National Hurricane Center Website
- National Hurricane Center's Atlantic Tropical Weather Outlook
- Tropical Cyclone Formation Probability Guidance Product
Visibility[edit source | edit]
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