Overview

The prediction page displays the map to the right of, or below, the GUI controls, depending on browser size and orientation. The map is zoomable, and pannable when zoomed, using mouse wheel and pointer drag, or (on mobile or touch devices) pinch-zoom and touch drag. The +/- (plus/minus) keys also zoom.

Auto-refresh

Weather imagery is automatically refreshed by default (unless changed in settings), so the page does not need to be manually reloaded to get up-to-date imagery.

Auto time seek

Event time is the fixed date and time set for the prediction's event to occur, typically the geocentric midtime. It varies for each prediction, and is indicated by a star  on buttons and widgets. On initial load, the map will automatically show the weather at event time if possible, i.e. if it is within the range of the default forecast. (A star  with tick pointing to event time, will also be shown beneath the imagery slider if event time is in range.) The event time button (or e key) can also be pressed to set the displayed time range to event time (or as close as possible); see the Imagery Date/Time help page.

Widgets

Many widgets have a brief tooltip that pops up when they are hovered over. This may give help and/or status on the item. This includes some non-clickable items, like the now  and event time  icons under the imagery slider.

Buttons are white on blue when they are selected/on:

They are black on white when they are unselected/off:

Pop-up dialogs can be dismissed by clicking the X at upper right (if available), pressing Esc, or clicking on the page outside the popup.

Bookmarks

Most GUI selections are stored in the URL anchor (the #... part). This means that a particular provider/region/time etc. can be selected and the URL bookmarked or shared, and those selections will be restored on revisit. However, this will override the default provider/region auto-selection, which might otherwise change later as event time draws near; see Imagery Type. Note that making a change to any GUI element that is stored in the URL anchor, will then store all storable GUI selections in the anchor. E.g. changing the Duration will also store the current provider/region in the URL, overriding its possible new default later.