Topic:

Conditions that can be used to trigger a weather or customized alert.

Description:

From the Settings tab, click the Interactive Visibility, Weather and Hazard Alerts option to configure new and existing weather alerts. Alerts can be sent for the following conditions:

• New: new issuance
• Continued: no change to start/end times (just new text)
• Upgraded: existing warning cancelled in favor of a higher priority message
• Correction: correction to text only
• Extension in Time: existing warning extended to cover a new time period (modified start and/or end date/time)
• Extension in Area: existing warning extended to cover a new area
• Extension in Both: existing warning extended to cover a new area and with a modified start and/or end date/time
• Canceled: event no longer in effect
• Expired: existing warning no longer in effect (message sent after the product end date/time)