How close can it get?

- - Closest Point of Approach - -

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Oops, you clicked on a link to the 'How close can it get' tool and the results have expired or you didn't enter any latitude and/or longitude coordinates for the storm. Enter those numbers at 'Current Position, 12 hours, etc.' in the 'Enter Five Day Forecast' box.

For active storms prefilled forms are available.
Currently Tracking (if any):

Select your Island:
Enter Five Day Forecast:
Current Position:     
12 hours:     
24 hours:     
36 hours:     
48 hours:     
60 hours:     
72 hours:     
96 hours:     
120 hours:     
Or enter your Coordinates:
Lat: Lon:
Generate Map (slower...)

Help? The five 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. The maps are generated using the API.

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