Return dataframe of forecast/advisory data.

## Details

Returns a wide dataframe of most the data available in a cyclones forecast/advisory product (watches and warnings are not included at this time).

Overall structure of the dataframe is listed below. Note the following clarifications:

The value of `n` in `Hr{n}` variables is the forecast period. Up to 2002, forecast periods are 12, 24, 36, 48 and 72 hours. After 2002, forecast periods were extended to 96 and 120 hours. Not all forecast periods will be available for every cyclone advisory (e.g., if it is dissipating or expected to dissipate.)

Wind radius data is not included 96 and 120 hour forecast periods.

Forecast dates are not truly 12, 24, ..., 120 hours from the date/time of the advisory. The NHC issues two positions in these products; one for current and one for three hours prior. It is the latter position the forecast date/times are based.

- Status
Classification of cyclone

- Name
Name of cyclone

- Adv
Advisory number

- Date
Date and time of advisory

- Key
Unique identifier of cyclone

- Lat
Latitude of cyclone center

- Lon
Longitude of cyclone center

- Wind
Maximum sustained one-minute winds in knots

- Gust
Maximum sustained one-minute gusts in knots

- Pressure
Minimum central pressure in millibars

- PosAcc
Position accuracy of cyclone in nautical miles

- FwdDir
Compass angle of forward motion

- FwdSpeed
Forward speed in miles per hour

- Eye
Size of eye in nautical miles

- NE64
Radius of >=64kt winds in northeast quadrant

- SE64
Radius of >=64kt winds in southeast quadrant

- SW64
Radius of >=64kt winds in southwest quadrant

- NW64
Radius of >=64kt winds in northwest quadrant

- NE50
Radius of >=50kt winds in northeast quadrant

- SE50
Radius of >=50kt winds in southeast quadrant

- SW50
Radius of >=50kt winds in southwest quadrant

- NW50
Radius of >=50kt winds in northwest quadrant

- NE34
Radius of >=34kt winds in northwest quadrant

- SE34
Radius of >=34kt winds in southeast quadrant

- SW34
Radius of >=34kt winds in southwest quadrant

- NW34
Radius of >=34kt winds in northwest quadrant

- Hr{n}FcstDate
Forecast valid date

- Hr{n}Lat
Forecast latitude in `n` hours

- Hr{n}Lon
Forecast longitude in `n` hours

- Hr{n}Wind
Forecast maximum wind in `n` hours

- Hr{n}Gust
Forecast maximum gust in `n` hours

- Hr{n}NE64
Forecast wind radius in `n` hours

- Hr{n}SE64
Forecast wind radius in `n` hours

- Hr{n}SW64
Forecast wind radius in `n` hours

- Hr{n}NW64
Forecast wind radius in `n` hours

- Hr{n}NE50
Forecast wind radius in `n` hours

- Hr{n}SE50
Forecast wind radius in `n` hours

- Hr{n}SW50
Forecast wind radius in `n` hours

- Hr{n}NW50
Forecast wind radius in `n` hours

- Hr{n}NE34
Forecast wind radius in `n` hours

- Hr{n}SE34
Forecast wind radius in `n` hours

- Hr{n}SW34
Forecast wind radius in `n` hours

- Hr{n}NW34
Forecast wind radius in `n` hours

- SeasNE
Radius of 12ft seas in northeast quadrant

- SeasSE
Radius of 12ft seas in southeast quadrant

- SeasSW
Radius of 12ft seas in southwest quadrant

- SeasNW
Radius of 12ft seas in northwest quadrant