FlySparkDrone flying weather: forecast and go / no-go
Before every flight you want the same answers: how windy, will it rain, is the GPS going to be solid, and how long until dark. FlySpark's flight forecast puts them on one screen for your location, with a simple go / no-go call.
It is free, runs in any modern browser and is also built into the FlySpark app.
Free. Hardware connections need Chrome or Edge on a computer; phones use the FlySpark app.
Features
Wind and gusts
Hourly wind speed, gusts and direction, so you can pick the calmest window.
Rain and temperature
Precipitation, temperature and density altitude, which affects lift and battery performance.
Kp index
The planetary K index from NOAA, plus the current geomagnetic storm, solar radiation and radio blackout scales.
GPS satellites
An estimate of how many navigation satellites will be in view, computed from current orbit data.
Sun times
Sunrise, sunset and civil dawn and dusk, for planning around light.
Nearby restricted areas
A map of nearby airports, military areas and other sensitive sites, as a general guide.
Why drone pilots need their own forecast
A normal weather app tells you if you need a coat. A drone forecast tells you if your aircraft will cope. Gusts matter more than average wind, especially for small quads and fixed wings landing in a field. Light rain can kill electronics that are fine in damp air. Temperature changes battery sag and the length of the flight.
Geomagnetic activity matters too. A high Kp index can disturb GPS accuracy and compass readings, which matters most for GPS-guided flight such as return to home and position hold. FlySpark shows the Kp index alongside the weather so you can see the whole picture at once.
How the go / no-go call works
FlySpark checks wind, gusts, rain, light, Kp index and nearby restricted areas against simple limits and tells you which checks raised a caution or a no-go. It is a summary to help you decide, not a permission to fly. Your aircraft, your skill and your local rules set the real limits.
Weather comes from Open-Meteo, geomagnetic data from NOAA's Space Weather Prediction Center and satellite orbits from CelesTrak.
Airspace is your responsibility
The restricted area map uses buffer distances around airports, military sites, government buildings, nuclear sites and prisons as a general guideline. It is not an official airspace map. Always check your country's official drone map, NOTAMs and local rules before flying. When conditions look good, plan the route with the drone mission planner.
How to check if it is safe to fly a drone today
- Open the forecast. Open the FlySpark flight forecast in your browser or the app.
- Set the location. Allow location access or search for the flying site.
- Read the summary. Check the go / no-go call and which checks raised a warning.
- Pick a window. Use the hourly wind, gusts and rain to choose the best time, and confirm the airspace with your official map.
Frequently asked questions
What Kp index is safe for drones?
As a rough guide, Kp 4 and below is usually fine, Kp 5 is a minor geomagnetic storm where GPS may wander, and higher values call for extra care with GPS-dependent flight. Watch your satellite count and position hold before relying on them.
How much wind is too much for a drone?
It depends on the aircraft. Many small camera drones are rated for around 10 m/s; tiny whoops and light wings struggle much earlier. Gusts are usually the bigger problem than steady wind.
Is this an alternative to UAV Forecast?
It covers similar ground: wind, gusts, rain, Kp, satellites and sun times with a fly or don't-fly summary, inside the same app you use for your drone.
Does it tell me where I can legally fly?
No. It shows nearby restricted areas as a general guide only. Check your country's official drone map and rules.
Does it need an account?
No. Open it and set your location.
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Ready to try it?
Free. Hardware connections need Chrome or Edge on a computer; phones use the FlySpark app.