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World Meteorological Organization (WMO) (WMO)

The United Nations specialised agency coordinating international cooperation in weather, climate, operational hydrology and related environmental observations and services.

WMO establishes technical frameworks for observing, exchanging and using data and supports warning, forecasting and capacity-building through its member states and territories. National services remain responsible for their operational forecasts and warnings.

Its maritime work includes marine meteorological services, ocean observations and the worldwide system for meteorological warnings and forecasts under GMDSS.

Weather (Meteorology) related Downloads

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Barometric Pressure Change Meanings

A list containing the common weather scenarios that can be interpreted from changes in air pressure. Knowing what the changes in barometric pressure indicate can help us forecast and monitor the weather. ...More Details
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Beaufort Scale

Details of the wind strength and other expected conditions for each Beaufort scale 0 to 12. The Beaufort scale is taught in the Weather (Meteorology) module of the Sailing Essentials & Day Skipper...More Details
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Cloud & Weather Front Spotter

Understanding the relationship between clouds and weather fronts allows us to see a weather front as it develops and passes over us. This basic knowledge can help us determine what weather to expect in...More Details
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Inshore Waters Forecast - Dumbarton to Farlow

A fictional inshore waters forecast for the sea area Dunbarton to Farlow, part of the RYA Northern Hemisphere training area. This forecast is used in the Weather module's Impact & monitoring weather session,...More Details
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Inshore Waters Forecast - Sea Areas

Inshore waters and strong wind forecast for coastal waters up to 12 miles offshore. Forecasts for UK inshore waters are issued four times a day and cover a period of 24 hours from 0000, 0600, 1200 and...More Details
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Shipping Forecast Sea Areas

Here’s a handy crib sheet you can download that lists all 31 Shipping Forecast sea areas at a glance, complete with their names, locations and key details—perfect for mariners, weather enthusiasts...More Details
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Shipping Forecast Worksheet

This worksheet contains information regarding the UK shipping forecast used for the session Sources of Weather Forecast in the Weather module of the Day Skipper Theory Course. ...More Details
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Synoptic Chart

An example synoptic chart used in the How to read a Synoptic Chart in the Weather module of the Sailing Essentials & Day Skipper Theory courses. ...More Details
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UK Inshore Waters Forecast

Heading out to sea? Make sure you know exactly which inshore sea area you’re sailing in — and which coastguard to call if you need assistance. This free crib sheet gives you a clear, easy-to-follow...More Details
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Weather Broadcasts and Maritime Safety Information

His Majesty’s Coastguard is responsible in the UK for broadcasting marine weather forecasts and Maritime Safety Information (MSI) on NAVTEX, VHF and MF and providing the Radio Medical Advice Link Call...More Details
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