Metar vs Open/Shut

Visualized METAR and TAF weather information for all airports in the world. Concise summary of everything you need to know about today's aviation weather. METAR features: - Visualized in easy to understand and colourful metrics - Weather symbols for significant weather and clouds, like in a non-aviation weather report - Crosswind calculations, by combining METAR and runway information - Flight rules category: VFR, MVFR, IFR, LIFR - Read out by text-to-speech available, listen to a decoded METAR while doing other things TAF features: - TAF broken down and displayed per hour in a table - Show sunrise/sunset, minimum and maximum temperature Keeping track: - Add your favorite stations to the list, see their weather at a glance - Get observations near your location - Find stations in the interactive map with weather codes - Search airports by ICAO code or name History: - Graphs with weather trends today and yesterday: temperature, visibility, wind speed, QNH - METAR history for the last hours and link to more on the website Airport information: - See information about the airports, like runway directions, elevation, location - If the airport doesn't report a METAR, the nearest station used for calculations Calculations: - All units are customizable units: speed (knots, km/h, m/s, mph), altitude (meters/feet), visibility (kilometers/miles), temperature (Celcius/Fahrenheit) and air pressure (Hectopascal, Inch Hg) - Times are converted to the local time for each airport - Sunrise and sunset are calculated based on the airports latitude/longitude General: - METAR, TAF and airport data are automatically saved for offline use - Available in 6 languages: English, Dutch, Spanish, Portuguese, German and French

Open or shut? During a heatwave, everyone answers this question with instinct, and instinct is wrong. We open the windows when the weather feels nice, while the air outside is hotter than inside. We let in air that feels dry, while it actually carries more water. Open/Shut ends the guessing. ONE GLANCE, ONE ANSWER A full-screen verdict, updated in real time: OPEN or SHUT, with the reason in one sentence. No charts to interpret, no thresholds to configure. PHYSICS THAT IS ACTUALLY RIGHT Relative humidity is misleading: hot afternoon air can show a low percentage while holding more water than your living room. Open/Shut compares absolute humidity, the grams of water per cubic metre, indoors and out. Airing never trades a cool room for a damp one. IT KNOWS YOUR HOME Describe your windows once: "garden side", "bedroom skylight". When the verdict is OPEN, the app crosses the wind direction with your façades and tells you which openings to use for cross-ventilation, in your own words. It also learns your building's thermal inertia and estimates the indoor temperature between your readings. IT PLANS AHEAD An hourly timeline shows the next favorable window over the coming hours, and a notification arrives at the exact moment conditions flip. Open at the right time, not when you happen to think about it. SUMMER AND WINTER In summer, flush out the heat as soon as the evening air turns cooler. In winter, air strategically to fight condensation and mould without throwing your heating out the window. PRIVATE BY DESIGN No account, no backend, no tracking. Your location is only used to fetch your local forecast. Free, with no subscription. Open/Shut. An open-and-shut case.