Prospective users should contact vendors directly for information. The Internet Many of the forecasts, warnings, advisories, observations, and other text products made by the National Weather Service are available for free on the internet. Most of the Weather Forecast Offices maintain web pages. Each office usually offers their forecasts through links on the internet. This is considered to be an unofficial distribution source because the timeliness of the products cannot be guaranteed.
Links are often to third party sites such as universities.
Computer and networks occasionally fail and when that happens data becomes inaccessible.