Days Until Hurricane Season 2018
Active Storms: None.
Active Investigations: None.
Areas of Interest: None.

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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

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Atlantic Basin Storm Count Since 1850

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[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

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

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Tropical Weather Discussion

  • Fri, 23 Mar 2018 11:54:30 +0000: NHC Atlantic Tropical Weather Discussion - NHC Tropical Weather Discussion (Atlantic)

    AXNT20 KNHC 231154

    Tropical Weather Discussion
    NWS National Hurricane Center Miami FL
    754 AM EDT Fri Mar 23 2018

    Tropical Weather Discussion for North America, Central America
    Gulf of Mexico, Caribbean Sea, northern sections of South
    America, and Atlantic Ocean to the African coast from the
    Equator to 32N. The following information is based on satellite
    imagery, weather observations, radar and meteorological analysis.

    Based on 0600 UTC surface analysis and satellite imagery through
    1130 UTC.


    The monsoon trough extends SW from Sierra Leone on the African
    coast near 09N13W to 04N17W. The ITCZ continues from 04N17W to
    00N30W to the northeast coast of Brazil near 02S44W. Scattered
    moderate convection is present from 03N to 05N between 18W and
    24W. Similar convection is occurring from 04N to 06N between 10W
    and 13W.



    High pressure has pushed SE to the Mississippi Delta near 29N88W.
    The high will slide ESE over the NE corner of the Gulf today,
    over the Bahamas on Sat and to the east of the Bahamas on Sun.
    Increasing SE return flow will develop over the Gulf during the
    first half of next week. Return flow over the Gulf will become
    fresh to strong on Mon and Tue as the pressure gradient tightens
    between high pressure east of the Gulf and developing low pressure
    over the Central Plains States. A trough will develop in the
    Yucatan peninsula each evening, and shift westward across the
    southwestern corner of the Gulf during the overnight hours.


    Undersea volcano Kick'em Jenny, north of Grenada near 12.18N
    61.38W, is in a state of unrest. The government of Grenada advises
    mariners to observe a 5 km or 3.1 nm exclusion zone around
    Kick'em Jenny. Please refer to the web page,, for
    additional information.

    A weakening cold front extends SW from the Windward Passage to the
    southeastern portion of Jamaica. The cold front will continue to
    weaken and is expected to dissipate later today. Only patchy
    cloudiness and isolated showers were observed along and up to 150
    nm NW of this boundary. High pressure ridging extending SW from
    the Atlantic Ocean will support fresh to locally strong trade
    winds across central and western Caribbean Sea during the next
    several days. Winds will reach near gale force along the NW coast
    of Colombia during the overnight hours. Fresh to strong winds can
    be expected over the Windward Passage and to the lee of Cuba and


    A cold front enters the discussion area near 32N59W, then
    continues SE to 23N68W, then across the Windward Passage.
    Scattered showers and isolated thunderstorms are found along and
    up to 150 nm E of the front to the N of 25N. The front will
    continue moving SE and gradually slow down, eventually reaching
    from 32N48W to Hispaniola on Sun. It is possible that another cold
    front will drop southward from 32N on Monday in conjunction with
    a developing area of low pressure off the east coast of the United
    States which will cut off from the mid latitude flow. Model
    guidance suggests the front will pass S over the Bahamas as it

    Otherwise, strong 1035 mb high pressure centered SW of the Azores
    near 34N34W dominates the eastern two thirds of the basin and
    ridges southwestward to the Leeward Islands. Moderate to fresh NE
    winds are observed in satellite-derived wind data over the
    tropical Atlc N of 05N.

    For additional information please visit