How much advance notice of an aurora does the email message give?
None whatsoever. The alarm message is sent when the light level at the aurora detector exceeds a preset threshold, meaning that the northern lights are visible in the sky at that moment. A display should last long enough for you to drive away from city lights (see #4 below), but if you don’t read your e-mail until the following morning, you’re out of luck. If you have a cell phone, pager, or other wireless communication device, it can probably receive the alarm e-mails; check with your service provider. This can be a convenient way to ensure that alarms will wake you up anytime during the night. The alarm mailing lists distribute only the alarm messages, never anything else, and these are infrequent (usually a few per month or less), so people who have to pay per message should not need to worry.
Related Questions
- I submitted a message to the reflector and it went through, but somehow the body of the message was deleted and instead there was a notice that HTML content was removed. Whats wrong?
- I clicked on the link in the notice of quarantined email but get an error message. How can I access quarantined email?
- What if if I have lost the email message containing my unique posting number?
