Format a weather forecast for a CCK date field

I think it is useful to see a forecast for a specific event's date.
I figured this could be "simply" hooked into the date formatter, adding an extra format option for every existing date format.
Then, the forecast data can be filtered to only data for the CCK date field's date, and the single date's forecast can be output along with the date.

I have a simple prototype of this working, as a separate module for ease of deployment currently.

I am uploading the sample module here (see attached file nws_weather_date_cck.zip), for lack of a better way to release it or present it for comment.
Perhaps the formatter hooks themselves could simply be worked into the main nws_weather module (conditionally, if CCK and CCK date are installed, I suppose), if this is deemed a useful feature.

Anyway, I have not done so much release-worthy coding within drupal, so this may be poorly written. I am open to any constructive criticism. I just saw it as a good way to help suggest something is to provide at least a prototype.

Thanks,

Rob O'Connell