User's Guide

Table Of Contents
Using SEQUENCER
FasTrac Millennium User’s Guide – May 2003
5.3.2 Creating NEXRAD Time-Lapses
1. Configure your ingestor program (such as NetRad or WSIrad) to delete NEXRAD files that
are older than four hours. (This will retain the setting and only needs to be set once.) The
procedure is different for different programs.
2. Open SEQUENCER, and highlight the sequence's event after which you want to insert the
time lapse. (If no events exist in this sequence, the new time lapse will become the first
event.)
3. Click Ins Evt to open the selection menu.
4. Double-click on the TIME LAPSE listing to open the Event List, which lists the available
time lapses. If no lapses are in the system, the list of available lapses will be blank.
5. Click Create New to open the Radar Type menu.
6. Select the radar type that describes your needs:
Baron/Unisys/WSI NexRad or WxCentral NexRad.
7. Select the Name text box, and type in a unique name (the system
will warn you if you pick an existing name). Select the NEXRAD
site from the Site pull-down list. The system will only let you
choose sites from which your system has products. The product
pull-down list, however, lists all possible products, not just the
ones available.
8. Specify the number of iterations and the pause between frames, in
milliseconds. (See step 8 in section 5.3.1 for explanations of the
terms.)
9. Click Lapse up to 24 hours to list all the available NEXRAD
files for the specified site and product from the last 24 hours, or
click Lapse up to 30 days to list all files from the past 30 days.
10. Select individual products to use in the time lapse by clicking on the first file you want, and
then holding down the CTRL key while you select subsequent files, or select a range by
clicking on the first file you want and then holding down the SHIFT key while you select the
last product.
11. When you have highlighted all the products you want in the lapse, click Create Lapse. If you
have done everything correctly, the system will use the selected products to create a time
lapse. You can play back and edit this time-lapse event like any other time-lapse event.
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