Bomb Cyclones Explained: How Rapidly Deepening Storms Form
Learn what bombogenesis measures, why the pressure threshold changes with latitude, where bomb cyclones form and which local forecasts matter most.
Tornadoes Explained: How They Form
Tornadoes can follow several storm-scale pathways. Learn what supercells and downdrafts contribute, what radar confirms, and how to shelter safely.
Thunderstorms and Lightning: How They Form
How thunderstorms grow, why lightning and hail develop, how to read a storm forecast, and what to do as soon as thunder is heard.
Humidity and Dew Point Explained
Relative humidity depends on temperature. Dew point tracks the moisture itself, and an outdoor humidity forecast does not describe indoor air.
Visibility Explained: What the Distance Means
How observations, MOR, kilometres and statute miles differ, why fog is below 1 kilometre, and how to read a visibility forecast.
How Weather Forecasts Work
How observations, data assimilation, models, ensembles, and calibration become a weather forecast, and why the result changes with lead time.
Cloud Cover Explained: Percentages, Oktas and Ceilings
Cloud-cover percentages and oktas describe sky amount, not rain chance or height. Layers overlap, and a ceiling is a separate aviation report.
Sunrise and Sunset: Times, Twilight and Day Length
How Airpult calculates sunrise, sunset and day length, why visible times can differ, and how twilight, latitude and local time affect the result.
Wind Speed Explained
Understand mean wind, gusts, measurement height, forecast periods, the Beaufort scale, and practical decisions in exposed conditions.
What Does "Feels Like" Temperature Mean?
How Airpult calculates Feels Like temperature, why provider values differ, and how wind, humidity, sun, clothing and activity affect your experience.
How Pollen Forecasts Work
How Airpult combines six CAMS pollen forecasts into tree, grass and weed groups, what the display levels mean, and how weather can change airborne pollen.
AQI: How the Air Quality Index Works
What AQI means, why US and European readings differ, and how Airpult’s model-derived value compares with official reporting.