Explanation:  I have implemented a registration/subscription system for access to BLIP soaring forecasts.  Once you have registered, which is free, all BLIPSPOT, all "Thermal Updraft Velocity" BLIPMAP, all "Buoyancy/Shear Ratio" BLIPMAP, and all "Previous Day" BLIPMAP forecasts are freely available and this "Visitor Access" screen will not appear.  However, access to other BLIPMAP forecast parameters additionally requires subscription, currently at $13/yr for either RUC or NAM forecasts alone and $20/yr for both.  Registration/subscription can be initiated from the left-sidebar links (the "subscribe" link will only appear if you are already registered).  If you wish to view examples of subscriber-only forecasts prior to subscribing, you must select "Previous Day" forecasts.

If you have already registered:  viewing this page can occur if  (1) no DrJack Registration cookie was found in your browser,  (2) an invalid UserID or Password was used,  or  (3) your subscription level was not sufficient to access the chosen forecast.   For cases (1) and (2) -- which is most likely if you reached this page yet were not attempting to access a forecast -- you should use the "Get new cookie (Logon)" link on the left-sidebar to logon and then access the desired webpage.  (There is also a "Send Forgotten User Info" link on the sidebar if you need it)