See the following Soaring Society of America web link for a great article describing how glider pilots use skew-t graphs to predict weather for a days flight.
Uses data from http://rucsoundings.noaa.gov/
Automatically download the day's weather data
Use the slider to quickly view all hour-by-hour graphs.
Zoom to inspect the graph details
Configurable units and graph lines
Use different weather models
Show forecast graphs for the next few days
Saved favorites to quickly view different locations and/or weather models.
Here mode uses GPS to easily get graphs for your current location.
Load waypoints from files.
В качестве инструкции можно использовать главу «Краткие сведения по метеорологии» из книги «Полет на планере» Е. Г. Руденсккого: http://meteo.paraplan.net/books/polet_na_planere.html
Shows you where the rain is at any given time.
Simple and easy to use.
Replaces RadarUSA which does not work on newer phones.
Works best with a touch screen to zoom it and drag it around and with a fast data connection (3G or WiFi).
RadarUSA2 displays the most recent doppler weather radar (rain) image for a selected location. It shows a map of your area with an overlay of the rain radar image.
The app opens straight up into the most recent map for the selected area. (The images are usually updated every 6 to 10 minutes).
The map can be zoomed in and out and can be dragged around the screen.
Two image sizes are available - 124mile radius and 284mile radius.
The UT and local time is shown at the top of the image.
The 284mile option is about half an hour behind the current time owing to android not fully supporting animated gifs.
Add it to your home page and it is there at your fingertips to view at a moments notice.
INSTRUCTIONS for USE:
The very first time the app is run, it fires up in the 'States' 'menu'.
Tap on your State and the radar locations in your state will then be displayed.
Tap on the one nearest you and your map will be displayed.
By using the 'menu' button (or icon) you can get back here at any time and change the location.
The last location selected will then be the default location - this image will then always display immediately you start the app. (until you change it again).
The menu display also has 'north', 'south', 'east', and 'west' navigation buttons. Tapping one of these will load the image for the next location in the selected direction.
The final button in the 'menu' display is '284mi radius'. Tapping this will double the area covered by the display from 124 miles to 284 miles - for one time only.
This coverage reverts automatically to the standard 124 mile radius the next selection.
If you have a touch screen, you can pinch, expand and drag the image to get a closer look at a location.
The images are quite large and you should really have a wifi connection or a very good signal to get the best loading speed.
StormWeather Widget features also next-generation storm, lightings, temperature, precipitation and wind alerts. You can define your own threshold level for each parameter. We will monitor forecasts for you and inform you immediately when your preset conditions are met.
If you are interested in more sophisticated weather parameters StormWeather Widget PRO should be your choice. The PRO version offers additional parameters e.g. 500 hPa Temperature, Wind gusts, CAPE, CIN, Frozen rain probability, UV radiation and many, many more.
StormWeather Widget – professional forecasts and weather alters at your hand.
StormWeather Widget includes:
* Weather widget (4x1 and 4x2)
* Weather forecast for 300k+ location around the world
* Choosing location from location name database, map or coordinates
* Weather tabs with daily/hourly and weekly/daily weather forecasts
* Three pre-defined user profiles: standard, marine, aviation
* Advanced weather alerts (you pick the parameter and threshold level, we monitor it!)
* Available weather parameters: air temperature, wind speed and direction, pressure, clouds cover, precipitation
StormWeather Widget PRO includes following additional features:
* Weather graphs
* Global lightings radar/map
* Customizable user profiles
* Forecast for more than 300 weather parameters e.g.: CAPE, CIN, 500 hPa Temperature, Convective rain, Wind gusts.
Important Note: Make sure beforehand that your device is equipped with an external temperature sensor and pressure sensor / humidity.
Device currently supported:
Samsung Galaxy S4
Samsung Galaxy Note 3
With this widget, you can view:
* The outdoor temperature via the thermometer built into your smartphone
* The temperature of your battery
* The moisture
* The atmospheric pressure
No internet access is required and low consumption.
If you do not have a sensor on your mobile, you can not select information displayed on the widget.
Tap the widget once to force it to update its values in real time during a period of 10 seconds by default.
Tested on Galaxy S4.
1) Sunrise and sunset
2) Civil Dawn and Dusk
3) Nautical Dawn and Dusk
4) Astronomical Dawn and Dusk
The computation is done using the formulae at http://williams.best.vwh.net/sunrise_sunset_algorithm.htm. Note that since these formulae do not take into account the elevation of the place, the computed values may be slightly inaccurate for places much above sea level.
The Sunrise Sunset Calculator also has the following features:
1) It lets you to set alarms at sunrise, sunset and any of the above dawn or dusk times.
2) It lets you search sun in the sky map.
All of the features currently supported by the app are free.
Dan for pointing out keypad, auto-clear, and tablet issues
Displays a list of Solar Elevation and Azimuth from sunrise to sunset in 1/2 hour increments.
For the selected Date, Time, Location and Time Zone
Sun: Declination, Equation of Time,Altitude,Azimuth,Solar Time
Moon: Altitude, Azimuth, Phase, Illuminated Percentage
For the selected Date, Location and Time Zone:
Sun: Sunrise, Local Noon, Sunset
Moon: Moonrise, Moonset,
Current lunar cycle quarter date/times (New, F/Qtr, Full, L/Qtr)
The software can be used for planning of flights up to 60kft, Mach 3 and ISA +/-30 degrees.