Weather Calc vs Radar Glance

If you’re a pilot, you often need to make lots of weather related calculations. Now there’s an easy solution, as close as your iPhone. Weather Calc performs the following weather relation calculations: Altimeter Setting - compute the altimeter setting based on elevation and station pressure Cricket Temperature - just for fun! This lets you estimate the temperature based on the chirp rate of a cricket Heat Index - compute the heat index based on the temperature and relative humidity Pressure - convert between hPa, atmospheres, psi, and inches and mm of mercury (Hg) Relative Humidity - compute the wet bulb and dewpoint based on the temperature, pressure, and relative humidity Speed Of Sound - displays the speed of sound in various units, given the temperature Standard Atmosphere - compute the temperature, pressure, density, viscosity, speed of sound, and more Station Pressure - compute the station pressure based on the elevation and altimeter setting. Temperature - convert between degrees Fahrenheit, Celsius, Kelvin, and Rankine Virtual Temperature - compute the virtual temperature based on the temperature, dewpoint, and pressure Vapor Pressure - com[ute the saturated and actual vapor pressure, as well as relative humidity Wet Bulb - compute the dewpoint and relative humidity based on the temperature, pressure, and wet bulb reading Wind Chill - compute the wind chill based on the temperature and wind speed Wind Speed - convert between knots, kilometers/hour, meters/second, miles/hour, feet/second Buy your copy now, and let Weather Calc take the drugery out of weather related calculations.

Window Compare places three possible start times side by side using the same official hourly forecast. See the highest hourly rain probability, coverage and alert availability before choosing a plan. HOW TO USE THE UPGRADE 1. Select a location and open Rain Window → Compare windows. 2. Choose the duration and start-time spacing. Review all three windows from the same NWS forecast snapshot. 3. Inspect coverage and timestamps. A lower-peak candidate is identified only when all three windows have complete, fresh data. 4. Freeze and share a report with source, time, hourly evidence and availability limits. Animated radar, saved locations, Rain Window, timeline controls, map tools and the offline field guide remain available. WHAT TO KNOW Official hourly comparisons cover supported US locations and need network access. The highest hourly precipitation probability is not a combined probability for the outing. Missing, partial, stale or future-dated data prevents a preferred-window result. Ties remain ties. An unavailable alert response is not no alerts. Radar observations apply to near-now windows only, and provider data may be delayed or unavailable. iPhone and iPad. No account required.