Hurricane
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Hurricane Information
Tropical Cyclone (Hurricane)
Tropical Cyclone (Hurricane)
Tropical cyclone is a storm system characterized by a low pressure center and numerous thunderstorms that produce strong winds and flooding rain. A tropical cyclone feeds on heat released when moist air rises, resulting in condensation of water vapour contained in the moist air. They are fueled by a different heat mechanism than other cyclonic windstorms such as nor'easters, European windstorms, and polar lows, leading to their classification as "warm core" storm systems.

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Hurricane Atlantic Satellite
Hurricane Atlantic Satellite
View the Hurricane Atlantic Satellite
The Hurricane Atlantic Satellite map shows clouds by their temperature over the Atlantic Ocean. Warmest (lowest) clouds are shown in white; red and blue areas indicate cold (high) cloud tops.
24 Hour Tropical Winds
24 Hour Tropical Winds
View the 24 Hour Tropical Winds
The Hurricane Tropical Winds map displays high level (about 40,000 feet) wind speed and direction over the Atlantic Ocean for the past 24 hours.
Atlantic Hurricane Analysis
Atlantic Hurricane Analysis
View the Atlantic Hurricane Analysis
The Hurricane Atlantic Analysis map displays the current surface features (highs, lows, fronts, tropical cyclones) in the Atlantic Ocean.
Saffir-Simpson Hurricane Scale
Category Wind Speed Storm Surge
  mph
(km/h)
ft
(m)
5 ≥156
(≥250)
>18
(>5.5)
4 131–155
(210–249)
13–18
(4.0–5.5)
3 111–130
(178–209)
9–12
(2.7–3.7)
2 96–110
(154–177)
6–8
(1.8–2.4)
1 74–95
(119–153)
4–5
(1.2–1.5)
Additional Classifications
Tropical Storm 39–73
(63–117)
0–3
(0–0.9)
Tropical Depression 0–38
(0–62)
0
(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.
Additional Hurricane Maps
Atlantic Forecast
Atlantic Forecast
The Atlantic Forecast image shows the 24 hour surface forecast in the Atlantic Ocean.
Caribbean Satellite
Caribbean Satellite
The Hurricane Atlantic Satellite image shows clouds by their temperature over the Atlantic Ocean.
Pacific Satellite
Pacific Satellite
The Hurricane Pacific Satellite image shows clouds by their temperature over the Pacific Ocean.
Pacific Analysis
Pacific Analysis
The Hurricane Pacific Analysis image shows the positions of any active tropical cyclones in the Pacific Ocean.
48hr Tropical Winds
48hr Tropical Winds
The Hurricane Tropical Winds map shows wind speed and direction over the Atlantic Ocean.
72hr Tropical Winds
72hr Tropical Winds
The Hurricane Tropical Winds map shows wind speed and direction over the Atlantic Ocean.
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