About the information on this website

Issued products identify their date, time, area and validity. Read those details before using or sharing a forecast. A later issue may update the assessment.

Dated examples and current information

Development examples and supplied historical reports are labelled. Their figures are not a live observation feed. When a connected product service is unavailable, the page says so.

Forecasts and observations

A forecast describes expected conditions. An observation records conditions at a stated place and time. The site keeps these labels distinct, including when an older observation is the latest one available.

Questions about a product

Contact GMS with the product name and issue time if the wording or validity is unclear.