It's a website that allows you to find airports with given weather conditions.
Typically, you'd look for weather at a given airport, there are many websites that allow it. Here, while that is also possible, the main way to use the site is the opposite - you look for airports with a certain weather. For example, you can find at which British airports it's currently raining.
DO NOT, by any chance, use this website for real flight or navigation! It is meant to be used for virtual flight simulation only. Data provided here is not guaranteed to be accurate.
There are five main types of things you can write in the search box:
cloud-base:200:400, which means cloud base between 200 and 400 ft AGL),
For numeric constraints you can define minimum value, maximum value or exact value. The syntax is
Additionally, min or max value cen be left out as empty.
wind:10means wind blowing at exactly 10 kt;
wind:10:20means wind blowing at between 10 and 20 kt;
wind::20means wind blowing at up to 20 kt;
wind:10:means wind blowing at 10 kt or more.
All available keywords and constraints are listed below. You can combine them in any order. The search results will fulfill all the conditions.
in the vicinity
no significant cloud
cloud-base- cloud base AGL
dew- dew point
vertical-visibility- vertical visibility
wind- wind speed (excl. gusts)
runway- runway length
cloud-base- feet (ft)
vertical-visibility- feet (ft)
temp- degrees Celsius (°C)
dew- degrees Celsius (°C)
visibility- statute miles (SM)
wind- knots (kt)
runway- feet (ft)
In the future it will be possible to use custom units.
LIFR cloud-base::400 Britain- will look for airports in Britain with LIFR flight rules and cloud base at or below 400 ft AGL;
wind:20: gusts heavy rain- will look for airports with winds at or above 20 kt, with significant gusts and heavy rain;
scattered broken- will look for airports with 2 different layers of clouds: scattered and broken;
wind:15: cloud-base:100:2000- will look for winds above 15 kt and cloud base between 100 and 2000 ft;
Britain temp:0:- will look for temperatures above 0 °C in Britain;
visibility::5 united states- will look for visibility below 5 SM in the United States;
BR RA- will look for mist and rain (could also be written as
Eastern Europe wind:15:- will look for winds at or above 15 kt in Eastern Europe;
runway:16000:- will look for aerodromes with at least one runway with length of 16000 ft or more.