Dear reader,
Anyone who has worked on an outdoor production knows how quickly conditions can change. A clear shooting day can suddenly turn into heavy rain, strong wind or a thunderstorm, especially during the Italian summer season. In recent years, these weather events have become increasingly frequent and unpredictable across the world, affecting productions working in cities, coastal areas, mountains and open countryside alike.
For film and television crews, weather is not only a logistical issue. It is a real safety factor that needs to be monitored throughout the day, particularly when the set includes aerial platforms, cranes, lighting towers, suspended equipment, temporary structures or large scenic elements.
One simple but extremely important tool should always be available on set: an anemometer.
Checking wind speed directly on location is essential because actual conditions can be very different from what weather forecasts or phone apps show. Wind behaviour changes depending on the environment. Rooftops, open fields, beaches, narrow streets or elevated areas can all produce sudden gusts that are much stronger than expected.
A commonly used operational threshold in the industry is around 24 knots of wind, approximately 44 km/h. Once those conditions are reached, productions should immediately reassess elevated work activities. Aerial platforms, boom lifts, elevated lighting, trusses, diffusion frames and suspended scenic elements should be lowered, secured or removed from exposure whenever possible.
What often creates problems is not the average wind itself, but sudden gusts. Large lighting frames, scenic walls and diffusion screens can behave like sails within seconds, especially in exposed locations. Waiting too long before securing equipment is one of the most common mistakes during deteriorating weather conditions.
Thunderstorms require the same level of attention.
A simple and useful method to estimate how close a storm is to the set is the well-known 3-second rule. After seeing lightning, count the seconds before hearing thunder. Roughly every 3 seconds correspond to about 1 kilometre of distance.
So, for example:
- 3 seconds = approximately 1 km
- 9 seconds = approximately 3 km
- 15 seconds = approximately 5 km
If thunder is heard shortly after lightning, the storm is already very close to the production area. At that point, outdoor work, metal structures and elevated equipment should already be managed cautiously. One of the biggest mistakes is waiting for heavy rain before reacting. Electrical activity can become dangerous well before the storm fully reaches the set.
Rain itself can also change working conditions very quickly. Wet surfaces increase the risk of slips and falls, while cables, generators and electrical distribution systems become more exposed to water infiltration and unsafe conditions. As weather worsens, productions should start protecting electrical systems, reducing unnecessary outdoor equipment and making sure that access routes and working areas remain safe and visible.
The productions that usually manage these situations best are the ones that prepare before conditions become critical. Monitoring forecasts during the day, checking wind speed directly on site, identifying who has authority to stop activities and maintaining clear communication between departments all make a significant difference once weather conditions begin to change.
Outdoor filming will always involve an element of unpredictability. That is part of the industry. But having clear procedures, trained crews and simple tools available on set can prevent weather from turning into an emergency.
At Framinia Services, supporting productions also means helping crews manage the environment around them, not only the set itself.