Russia Makes Advances As Winter Weather Grounds Many Ukrainian Drones

Carl von Clausewitz’s On War, the foundation of modern military doctrine, discusses the “frictions” that complicate military operations, noting that weather is chief among them. Indeed, weather has shaped many aspects of the Russia-Ukraine War, especially the infamous winters that have historically influenced military campaigns in the region. As another winter approaches, the change in weather has already had a significant impact on Ukraine’s defenses. Heavy snow, freezing rain, and dense fog are degrading Ukraine’s ability to operate drones, a core component of its current defense. Russia is exploiting this issue, launching large scale assaults, pushing back the Ukrainian lines, and making gains, including around the cities of Kharkiv and Pokrovsk.

Drone Vulnerabilities To Bad Weather

The core of Ukraine’s defenses consists of small FPV-style drones, which are being fielded in large quantities. These relatively inexpensive systems are used extensively for strike missions, flying precisely into a target and detonating. They become substantially harder to control in bad weather, especially when rain, snow, or shifting winds disrupt stable flight. Because these drones are small, they have very limited inertia, so even moderate gusts can push them off course or cause sudden movements that the operator must constantly correct. With each gust or downdraft, the drone drifts unpredictably, making it difficult to carry out precision strikes. Earlier reports from Ukraine have indicated that this is a major issue, as even light winds can ground FPV-style drones.

Bad weather also degrades the optical systems on the drone, which use a small forward mounted camera to produce a live video feed. Fog, snowfall, and heavy rain reduce contrast and depth perception, significantly reducing visibility. Droplets or ice on the lens blur the view, while moisture in the air scatters light and weakens the quality of the video signal the pilot receives. In dense fog, the operator may lose sight of obstacles, trenches, or even the target itself, increasing the chance of crashing or striking unintended positions. Since these drones operate close to the ground and at high speeds, losing visual clarity for even a moment makes an attack run impossible.

Ukraine’s Weather Disadvantage

These impacts of inclement weather on drone operations are causing major issues with Ukraine’s defenses. Ukraine, facing a manpower shortage, is leveraging a dense network of small drones to create what is often described as “kill zones” in front of their defensive lines. These lightweight FPV-style drones are being used in conjunction with artillery to break up Russian assault groups before they reach the Ukrainian defensive lines. When bad weather grounds these platforms, the entire defensive concept weakens.

Russia is taking advantage of this situation, which is allowing them to move through the kill zones and use their numerical advantage to directly engage Ukrainian forces. Videos posted on social media show Russian forces riding motorcycles and pickup trucks entering the town of Pokrovsk using fog to conceal their movement. Pokrovsk has been a hotly contested town, which has seen some of the fiercest fighting of the war over the past few months. They are reportedly also using the fog and low terrain to approach the town of Huliaipole in the Zaporizhzhia Oblast. Though they were ultimately unsuccessful, the Russians even used heavy fog to attempt a river crossing in the Donetsk Oblast. With the drones grounded, Russia has made substantial gains in a number of regions, pushing back Ukrainian lines.

Ukrainian Innovation And Recovery

Weather is always shifting, and the notoriously fickle climate across Russia and Ukraine can quickly transform battlefield conditions. Ukraine has already taken advantage of improvements in the weather to reestablish some of its kill zones, often in places that leave newly advanced Russian units exposed. Videos posted on social media show the Ukrainian 28th Separate Mechanized Brigade launching drone strikes against the newly arrived Russian forces in Kostiantynivka. In other regions as well, Ukrainian forces are using drones to cut off the recently arrived Russian soldiers, which will eventually force them to pull out or surrender.

However, the inclement weather will return, so Ukraine needs to adopt a longer-term solution. The country’s industrial base has already shown an exceptional ability to adapt its drone fleet quickly. The next iteration of drones will likely be more weather resilient, with improved airframes, better sealed electronics, and enhanced control algorithms that stabilize flight during gusts and precipitation. They may also integrate new sensors, including low light cameras and simplified thermal imagers, to help pilots maintain situational awareness in rain, fog, and snow. Given the fast pace of Ukrainian development and fielding efforts, these weather-resilient drones may enter the battlefield in the coming months.

Through this winter, Russia will continue to use the weather to create openings on the battlefield, just as it has throughout its history. At the moment, the grounding of Ukrainian drones has given Russian units more freedom to maneuver allowing them to press their numerical advantage. Yet many of the greatest military leaders have learned that no army can escape the influence of weather, the battlefield outcome hinges on how effectively each side adapts to the conditions. Ukraine has shown that the outcome is far from predetermined. Through resilient defensive concepts and rapid innovation, Ukraine has the opportunity to adjust and overcome these challenges even as the harsh winter weather continues.