You can save weather reports as RTF (Rich Text Format) documents, which you can open in TextEdit or any other application reading rich text.
Choose Window > Weather Reports.
To save all your reports, click the Save button in the Weather Reports window. Type a name for the document and choose a folder to save it in from the Where pop-up menu (to select any folder, click the down arrow button). Click the "All reports" radio button and click Save.
To save some of your reports, select them by holding the Command or Shift key while clicking their header rows. Click the Save button in the Weather Reports window, type a name for the document, and choose a folder to save it in. Click the "Selected reports" radio button and click Save.
To save all the reports issued starting from a certain date, click the Save button in the Weather Reports window, type a name for the document, and choose a folder to save it in. Click the "Reports issued starting from" radio button, specify a date, and click Save.
If you don't want to include errors reported during the download in the saved document, select the "Skip errors" checkbox in the Save dialog before clicking Save.