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Skydiving Impossible: How Much Wind is Too Much?

Black and white photograph of raindrops on a window or glass surface, with a blurred airport terminal or hangar visible in the background. Through the rain-covered glass, the silhouette of a small airplane can be seen on the tarmac. The water droplets create a textured foreground that obscures the clear view, giving the image a moody, atmospheric quality.

While clear skies and great visibility are ideal conditions for a jump, wind speed plays a crucial role in determining whether a skydive is safe or not. In this article, we will explore the limits of wind speed for skydiving and what makes certain wind conditions unsafe.

TL;DR

Safe skydiving requires wind speeds below 20-25 mph (32-40 km/h) at ground level. For students or tandem jumpers, the threshold is lower, typically around 14 mph (22 km/h).

Yes, gusty and variable winds can be more dangerous than steady high winds. They cause unpredictable changes in wind speed and direction, making canopy control difficult and increasing risk of dangerous landings.

Understanding weather forecasts and wind patterns is critical to planning a jump. Check ground-level wind speed, gusts, wind direction, and be aware of expected weather changes throughout the day.

Yes, wind direction significantly impacts landings. Crosswinds can push skydivers sideways, while headwinds slow forward motion for softer landings but may make it difficult to reach the landing zone if too strong.

You can prepare for your jumps with Sonuby Weather, a specialized forecasting tool designed for skydivers that provides detailed weather parameters globally and is available for free on iOS and Android.

Wind and Skydiving

The Wind Speed Threshold

Skydiving centers and safety experts generally agree that wind speeds up to 20-25 mph (32-40 km/h) at ground level are considered safe for experienced skydivers. For students or tandem jumpers, the threshold is often lower, typically around 14 mph (22 km/h) at ground level. The reason for this limit is the increased risk of injury during landing. High wind speeds at ground level can cause rapid changes in direction, making it difficult to control the canopy and increasing the likelihood of a hard landing.

Gusts and Variable Winds

Steady winds are one thing, but gusts and variable winds are another. Gusty conditions can cause sudden and unpredictable changes in wind speed and direction at ground level, making it difficult to control the canopy. Variable winds, where wind speed and direction change rapidly in a short period of time, can be particularly dangerous. These conditions can cause a skydiver to lose control, resulting in a dangerous landing or collision.

Wind direction and its effects

The direction of the wind is also important. For example, crosswinds - winds that blow perpendicular to the landing direction - can push skydivers sideways, making landings more difficult. Headwinds (winds blowing against the direction of the landing) can be beneficial because they slow the forward motion, allowing for a softer landing. However, too much headwind can make it difficult to reach the landing zone.

Wind Conditions at Altitude vs. Ground Level

It’s important to note that while wind speeds at higher altitudes can be significantly different and often higher during a skydive, the primary concern for safety is the wind conditions at ground level. These ground level wind speeds are critical in determining the safety of takeoff and especially landing. Higher altitude winds do affect the overall experience and trajectory of the jump, but the safety decision is primarily based on the conditions where the skydiver will land.

What to Look Out for in a Weather Forecast

As a skydiver, understanding how to read a weather forecast is critical. Here’s what to look for:

Prepare Your Jumps with Sonuby Weather

As crucial as the weather is to skydiving, having a reliable weather forecasting tool is key. This is where Sonuby Weather excels. Designed for skydivers, it provides a detailed daily overview of all essential weather parameters from above: ground-level wind speed and gusts and wind direction throughout the day and the week.

What makes Sonuby Weather special is its global coverage. You can plan jumps anywhere in the world, with forecasts tailored specifically for skydiving. Its user-friendly interface makes understanding weather conditions easy and efficient.

Sonuby Weather is an invaluable tool for skydivers. It simplifies the process of assessing weather conditions, ensuring you’re well informed and ready for a safe, enjoyable jump.

You can download it for free for both iOS and Android.

Screenshot of Sonuby Weather showing current conditions at Skydive Interlaken with clear skies, 33°F temperature, no precipitation, and wind data alongside the 14-Day Overview forecast.

Quickly check if conditions are good for your next jump with the Live Overview and the 14-Day Overview.

Screenshot of Sonuby Weather showing conditions at Skydive Interlaken including wind speed (8 mph), cloud cover, and visibility data in the Daily Overview.

Daily Overview allows you to drill down to specific days and review conditions for specific days.

Screenshot of Sonuby's altitude wind chart for Skydive Interlaken showing wind speeds at different altitudes throughout the day, with 9 AM highlighted.

Altitude forecasts for wind, clouds, and temperature allow you to further prepare for your jumps.

Screenshot of Sonuby Weather's Map Search showing the location of Skydive Interlaken Helicopter Skydive with coordinates and other nearby locations.

Map Search allows you to point to any drop zone on the face of the earth and see forecasts for it.

Conclusion

Skydiving is an exciting sport that requires respect for the weather, especially ground wind conditions. By understanding and adhering to wind speed limits, being aware of gusts and variable winds, and learning how to effectively read weather forecasts, skydivers can ensure a safe and enjoyable experience in the sky. Remember, when in doubt, it’s always better to take the safe route and postpone your jump to another day.

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