How close can it get?

- - Closest Point of Approach - -

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Track info might not be up to date

Currently Tracking:
- Hurricane Bertha - Latest Advisory: 500 AM EDT SUN JUL 13 2008 [view]

Select your Island:
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Help? The three day forecast is can be found in the Tropical Cyclone Discussion product. It is issued by the National Hurricane Center/Tropical Prediction Center and linked directly from the Quick Hurricane Web Resource Navigator (QHWRN). Lat/Lon should be entered in decimal degrees, not in the dd:mm:ss-format, so: 18.5, not: 18:30:00. Valid range: latitude 0-90 degrees, longitude: 0-180 degrees. When numbers are entered in the 'Or enter your Coordinates' box, the island selection is ignored. The coordinates for the islands are based on the corresponding National Weather Service weather stations. The closest point of approach is defined as the shortest (great circle) distance between the location of interest and the loxodrome (rhumb line) defined by two forecast points. The algorithm and code for the great circle distance calculation was provided by the National Geodetic Survey using GRS80/WGS84 as the reference ellipsoid.

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