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Saffir-Simpson Hurricane Scale
Category Wind Speed Storm Surge
  mph ft
5 ≥157 >18
4 130–156 13–18
3 111–129 9–12
2 96–110 6–8
1 74–95 4–5
Additional Classifications
Tropical Storm 39–73 0–3
Tropical Depression 0–38 0
The Saffir-Simpson Hurricane Scale is a classification used for most Western Hemisphere tropical cyclones that exceed the intensities of "tropical depressions" and "tropical storms", and thereby become hurricanes. Source: Intellicast

Beaufort Wind Scale

Number Of Storms Per 100 Yrs

Atlantic Basin Storm Count Since 1850


Atlantic Basin Storm Count Since 1850

Typical Tropical Cyclone Origins and Track By Month



June Hurricane Climatology

July Hurricane Climatology

August Hurricane Climatology

September Hurricane Climatology

October Hurricane Climatology

November Hurricane Climatology

Hurricane Strike Percentages


[Map of return period in years for hurricanes passing within 50 nautical miles] Estimated return period in years for hurricanes passing within 50 nautical miles of various locations on the U.S. Coast


[Map of return period in years for major hurricanes passing within 50 nautical miles] Estimated return period in years for major hurricanes passing within 50 nautical miles of various locations on the U.S. Coast


CONUS Hurricane Strikes

 
[Map of 1950-2011 CONUS Hurricane Strikes] 1950-2011 CONUS Hurricane Strikes (Courtesy of NCDC)

Lookup Historic Hurricane Tracks



Hurricane Katrina Track 2005

2017 Hurricane Season Storms

Tropical Storm ARLENE
Duration April 19 – April 21 2017
Peak intensity 50 mph (85 km/h) (1-min)
990 mbar (hPa)
Tropical Storm BRET
Duration June 19 – June 20 2017
Peak intensity 50 mph (85 km/h) (1-min)
1007 mbar (hPa)
Tropical Storm CINDY
Duration June 20 – June 23 2017
Peak intensity 60 mph (95 km/h) (1-min)
991 mbar (hPa)
Tropical Storm DON
Duration July 17 – July 18 2017
Peak intensity 50 mph (85 km/h) (1-min)
1005 mbar (hPa)
Tropical Storm EMILY
Duration July 30 – August 2 2017
Peak intensity 60 mph (95 km/h) (1-min)
1001 mbar (hPa)
Hurricane FRANKLIN
Duration August 7 – August 10 2017
Peak intensity 85 mph (140 km/h) (1-min)
981 mbar (hPa)
Hurricane GERT
Duration August 12 – August 17 2017
Peak intensity 110 mph (175 km/h) (1-min)
962 mbar (hPa)
Major Hurricane HARVEY
Duration August 17 – September 1 2017
Peak intensity 130 mph (215 km/h) (1-min)
937 mbar (hPa)
Major Hurricane IRMA
Duration August 30 – September 12 2017
Peak intensity 180 mph (285 km/h) (1-min)
914 mbar (hPa)
Major Hurricane JOSE
Duration September 5 – September 22 2017
Peak intensity 155 mph (250 km/h) (1-min)
938 mbar (hPa)
Hurricane KATIA
Duration September 5 – September 9 2017
Peak intensity 105 mph (165 km/h) (1-min)
972 mbar (hPa)
Tropical Storm LEE
Duration September 14 – September 30 2017
Peak intensity 115 mph (185 km/h) (1-min)
962 mbar (hPa)
Major Hurricane MARIA
Duration September 16 – September 30 2017
Peak intensity 175 mph (280 km/h) (1-min)
908 mbar (hPa)
Hurricane NATE
Duration October 4 – October 9 2017
Peak intensity 90 mph (150 km/h) (1-min)
981 mbar (hPa)
Major Hurricane OPHELIA
Duration October 9 – October 16 2017
Peak intensity 115 mph (185 km/h) (1-min)
959 mbar (hPa)
Tropical Storm PHILIPPE
Duration October 28 – October 29 2017
Peak intensity 40 mph (65 km/h) (1-min)
1000 mbar (hPa)
Tropical Storm RINA
Duration November 5 – November 9 2017
Peak intensity 60 mph (95 km/h) (1-min)
991 mbar (hPa)

2014 Hurricane Season Forecasts by NOAA, CSU, TWC, GWO etc…

NOAA today released their 2014 Hurricane Season Forecast calling for an average to below average season…
NOAA outlook2014_400
The main driver of this year’s outlook is the anticipated development of El Niño this summer. El Niño causes stronger wind shear, which reduces the number and intensity of tropical storms and hurricanes. El Niño can also strengthen the trade winds and increase the atmospheric stability across the tropical Atlantic, making it more difficult for cloud systems coming off of Africa to intensify into tropical storms.

The outlook calls for a 50 percent chance of a below-normal season, a 40 percent chance of a near-normal season, and only a 10 percent chance of an above-normal season. For the six-month hurricane season, which begins June 1, NOAA predicts a 70 percent likelihood of 8 to 13 named storms (winds of 39 mph or higher), of which 3 to 6 could become hurricanes (winds of 74 mph or higher), including 1 to 2 major hurricanes (Category 3, 4 or 5; winds of 111 mph or higher). Read the entire article HERE.

Colorado State University and The Weather Channel also fall in line with NOAA predicting below average seasons…
CSU and TWC Hurricane Season Forecasts
According to Dr. Phillip J. Klotzbach and Dr. William Gray of Colorado State University (CSU) in its annual preseason forecast released Thursday, the team expects a total of nine named storms, three hurricanes and one major hurricane (Category 3 or higher) in the Atlantic Ocean basin. This forecast is below the long-term average of 12 named storms, six hurricanes and three major hurricanes each season. While TWC is calling for 11 named storms, 5 of those becoming Hurricanes with only 2 becoming major Hurricanes. Read more about their forecasts HERE.

Seems the only organization predicting an above average season is Global Weather Oscillations Inc. (GWO), a leading hurricane and climate cycle Prediction Company, and the only organization that was correct in predicting the weak 2013 season! CEO David Dilley, Ocala, FL, says the upcoming season will be stronger and more dangerous than last year, with 17 named storms, 8 hurricanes and 3 major hurricanes. This will be an about face from 2013 which saw the development and strength of tropical storm and hurricane activity suppressed by hostile upper atmospheric wind shear. An average hurricane season has 12 named storms, 6 hurricanes and 3 major hurricanes. Read the entire article HERE.

WeatherBELL‘s forecast is calling for an average season…
WeatherBELL 2014_Hurricane_Forecast_Graphic
Named Storms: 8-10
Hurricanes: 3-5
Major Hurricanes: 1-2
ACE: 75-90% of normal
The deep tropics (south of 22.5°N) will have less to much-less than normal activity this year. Farther north, the very warm water off of the Eastern Seaboard is a concern, along with the oncoming El Niño conditions. There have been plenty of El Niño years with high impact seasons for the U.S. coast: 1957, 1965, 1969, 1976, 1983 (fading but still there), 1991, 1992, 2002, and 2004 are examples. The pattern favors stronger storms (relative to normals) in-close to the U.S. rather than in the deep tropics.
The ECMWF model is in strong agreement with this. Last year, it actually rang a warning bell with its forecast for near normal activity (it also did in 2012, but wasn’t too accurate that year). This year, the ECMWF March tropical forecast is lower than those years.
What is different is that the ECMWF model has a forecast for higher than average activity near the East Coast of the U.S.! We have been in awe at the lack of activity near the East Coast over the last 20 years, given the similar cycle to the 1950s. While Irene and Sandy have drawn significant attention, they were nothing compared to the meteorological mayhem of the 1950s or the intensity of 1938 and 1944. There is nothing to prohibit another Sandy-type hit from the southeast or three storms up the East Coast in one year despite a relatively low number of named storms in a season. The benchmark year on the eastern seaboard, 1954, had well below normal tropical activity in the deep tropics, with only Hazel being a strong storm south of 20°N, so there is strong historical support for the ECMWF’s idea.
The combination of dry air, what looks to be a relatively colder AMO index, a poor setup for the Indian Ocean wave train, and the oncoming El Niño all argue against higher than normal frequency in the deep tropics. We think this a challenging year, one that has a greater threat of higher intensity storms closer to the coast, and, where like 2012, warnings will frequently be issued with the first official NHC advisory. Read more HERE.

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