- Weather Sandbox global drying removes excess humidity from the simulation over time.
- Keep it enabled when you want a stable environment with recurring weather cycles.
- Balance heat and moisture so evaporation does not overwhelm atmospheric renewal.
- Use wider maps to give clouds, fronts, and storms enough room to develop.
- Watch the long-term trend instead of judging a storm after only a few simulation hours.
Weather Sandbox global drying explained
Weather Sandbox global drying is a long-term humidity control mechanic. It prevents moisture from accumulating indefinitely across the simulation area, which helps preserve room for changing cloud patterns, fronts, and storm systems. When global drying is disabled, humidity can gradually build up because moisture has no effective way to leave the simulated environment.
The setting matters most during extended runs. A world may look calm shortly after setup, then become increasingly cloudy as moisture accumulates. That buildup can make later weather less readable and reduce the contrast between clear air, developing clouds, and active storm cells.
Treat global drying as a stabilizer rather than a storm suppressor. It removes excess moisture over time while still allowing strong weather to form when heat, humidity, terrain, and wind are properly balanced.
| Setting | Main effect | Best use |
|---|---|---|
| Global drying enabled | Gradually reduces excess humidity | Long simulations and natural weather |
| Global drying disabled | Allows moisture to accumulate | Short visual experiments |
| Moderate heating | Supports evaporation and convection | Stable storm development |
| Excessive heating | Raises temperature faster than moisture can recover | Avoid during long runs |
Global drying does not decide whether a storm can form by itself. It changes the background conditions in which storms develop. A balanced setup can still produce powerful convection, while an overly hot or overly wet setup may become unstable even with drying enabled.
How to tune humidity and heat
The most reliable approach is to establish a gradual moisture cycle. Water surfaces should contribute humidity, heat should create lift and instability, and global drying should prevent the atmosphere from becoming permanently saturated. If one input is much stronger than the others, the simulation may lose its natural rhythm.
Start with moderate values instead of maximizing every weather control. High lake or sea temperatures can add a large amount of heat, while strong evaporation heat can accelerate warming further. When temperature rises too quickly, humidity may not renew at the same pace, and the simulation can lose the conditions needed for sustained cloud formation.
| Variable | If set too high | Safer approach |
|---|---|---|
| Sun intensity | Rapid warming and weak humidity recovery | Keep it moderate |
| Lake or sea temperature | Excessive heat and moisture demand | Use a middle range |
| Evaporation heat | Faster warming and unstable balance | Increase gradually |
| Water weight | Humidity becomes easier for updrafts to lift | Keep the default behavior |
| Global drying | Faster moisture removal if overly aggressive | Use it as a stabilizing control |
Humidity
Provides moisture for clouds and precipitation. A steady supply is more useful than a sudden maximum setting.
Heat
Creates buoyancy and convection. Moderate heating gives moisture time to participate in the cycle.
Drying
Removes accumulated moisture. It keeps clear periods and changing weather patterns possible.
When heat, water temperature, and evaporation are all pushed too high, warming can outpace humidity renewal. Reduce those inputs before disabling global drying.
A useful rule is to let humidity build gradually while keeping heating below the point where the atmosphere dries out faster than it can recover. This produces a more readable cycle: moisture gathers, convection strengthens, clouds organize, and drying eventually restores space for the next event.
Map design for stable storm development
Map layout strongly affects how global drying feels. A wide map can hold more terrain features and gives weather systems room to move. A mixed environment is usually more useful than a completely flat or highly mountainous map because it creates different local conditions without overwhelming the simulation with turbulence.
A practical layout includes mostly land, some water, and a smaller amount of elevated terrain. Water supports humidity, land provides varied surface conditions, and mountains can influence airflow and storm organization. Too much rugged terrain may break up updrafts before they mature.
| Map feature | Recommended role | Common problem |
|---|---|---|
| Wide map | Allows more weather events and larger systems | Requires more observation time |
| Mostly land | Provides stable areas for storm growth | Too little water can limit humidity |
| Moderate water | Supports evaporation and moisture transport | Excess water can add too much heat |
| Limited mountains | Adds terrain-driven variation | Too many hills create turbulence |
| Flat sections | Give storms room to organize | A fully flat map may feel less varied |
Build a hybrid map with broad land areas, meaningful water coverage, and limited mountain zones. The goal is variety without allowing terrain turbulence to dominate every updraft.
When testing a new map, change only one major factor at a time. If you alter terrain, sun intensity, water temperature, and drying simultaneously, it becomes difficult to identify which change improved or weakened the weather cycle.
Start with a broad map
Use enough horizontal space for fronts and cloud groups to move before reaching the edge of the simulation.
Add mixed terrain
Combine mostly land with water and a smaller mountain region. Keep the highest terrain away from every major moisture source.
Set moderate environmental inputs
Begin with restrained heating, normal water behavior, and global drying enabled.
Observe several weather cycles
Let the simulation run long enough to reveal whether humidity accumulates, disappears too quickly, or remains balanced.
Storm timing and observation tips
Good storms may take time to develop. Weak convection should not be dismissed immediately because small updrafts can strengthen as a front arrives or as heat and moisture align. Short-lived storms are also valuable indicators of whether the atmosphere is responding naturally.
Avoid relying on a single moment as proof that the setup works. Check how the map behaves across clear periods, cloud formation, precipitation, and dissipation. A healthy cycle includes variation rather than constant cloud cover or uninterrupted calm.
| Observation | Likely meaning | Recommended response |
|---|---|---|
| Clouds slowly fill the map | Moisture is accumulating faster than it leaves | Keep drying enabled and reduce excess heat |
| Clouds vanish quickly | Drying or heat balance may be too aggressive | Lower warming and review moisture sources |
| Weak convection persists | Conditions may need more time or a front | Continue observing before changing settings |
| Updrafts break apart | Terrain or turbulence may be too strong | Flatten some terrain or reduce instability |
| Strong storm forms briefly | A natural front-driven event may be occurring | Observe the full lifecycle before adjusting |
Give a promising setup multiple simulation days when possible. A quiet opening period does not rule out stronger storms later, especially near cold fronts or changing temperature groups.
Use observation checkpoints instead of constant adjustments:
- Early phase: Check whether moisture begins to form clouds without covering the entire map.
- Middle phase: Watch whether convection organizes near fronts, water, or terrain boundaries.
- Late phase: Confirm that global drying creates room for clearer conditions and new weather events.
- After a storm: Look for recovery rather than immediate permanent cloud buildup.
Global Drying Setup Checklist:
- Keep global drying enabled for long-running simulations
- Use moderate sun intensity and water temperature
- Balance humidity production against heating
- Build a wide map with mostly land and limited mountains
- Observe several weather cycles before changing settings
Troubleshooting and FAQ
When a simulation does not behave as expected, adjust the largest source of imbalance first. If the entire map becomes cloudy, inspect moisture accumulation and excess heat before changing terrain. If storms fail to organize, review map width, mountain turbulence, and whether the environment has had enough time to develop.
The best setup depends on the weather style you want. A dramatic storm showcase may use stronger contrasts, while a long-running environmental simulation benefits from conservative inputs and active global drying.
| Problem | First check | Practical adjustment |
|---|---|---|
| Permanent cloud cover | Global drying and moisture input | Enable drying and reduce excess heat |
| No meaningful storms | Map width and waiting time | Use a wider map and observe longer |
| Unstable updrafts | Mountain density and terrain height | Simplify the terrain |
| Humidity disappears | Heating and drying balance | Reduce heat before disabling drying |
| Weather feels repetitive | Terrain and water distribution | Add moderate environmental variety |
Change one setting per test run and record what happens over time. Controlled changes make it easier to identify whether drying, heat, terrain, or humidity is driving the result.
Q: What does global drying do in Weather Sandbox?
It gradually removes excess humidity from the simulated environment. This helps prevent the map from filling with clouds during long runs and supports changing weather conditions.
Q: Should I disable global drying for stronger storms?
Usually no. Disabling it may allow humidity to accumulate, but the map can become increasingly cloudy over time. Keep it enabled when you want a more sustainable weather cycle.
Q: Why do my storms disappear after increasing heat?
Excessive heat can raise temperature faster than humidity renews. Reduce sun intensity, water temperature, or evaporation heat before making larger changes.
Q: How long should I wait for a storm to form?
Give the simulation several weather cycles when possible. Weak convection may strengthen later, particularly when a front or temperature change moves through the map.