Tolerance for New Points
Enter the margin of error that can exist between a new point and a forecast point.
If the new point is within the tolerance limit, it is added to the end of the track
and a new forecast point is created.
If it falls outside the limit, a new track is begun.
Protected Areas for Warning Alert
Specify one or more protected areas.
A warning is generated if a centroid falls within or is forecast to move into a
protected area.
Select Protected Areas to see a list of areas. You can toggle choices on or o.
When you exit the list, the names of the selected areas are displayed in the field.
Protected areas are configured with the Setup utility. They are constrained to be
rectangles with arbitrary size and orientation angle.
You can configure up to 32 areas. (If you make a change to Setup, you must
restart IRIS for the change to take eect.)
TDWR Style
IRIS supports two formats of warning messages. In TDWR format, only the
strongest centroid in the highest priority area is reported along with its strength.
For example: "MBA 3MF 30K-, in spoken language: "Microburst Alert, Three
Mile Final, 30 Knot loss".
The older IRIS format reports all centroids in all protected areas, for example: 3
MBA warnings at 11:30 in: 3MF, 2MF. These messages are displayed
at the bottom of the display screen and optionally spoken.
Say Warning
Select this option to have the product generator to verbally signal the warning
message in addition to displaying it as a message.
In the IRIS menu, you must also select Setup > Enable Speech.
Make Diagnostic Results
In addition to the TRACK product, you can create a thresholded version of the
input product, useful for testing purposes. Unless you encounter a problem with
the TRACK product, you can turn this feature o.
Chapter 3 – Configuring IRIS Products
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