Fog Cloud

Source: D&D 5.2 SRD Spells

Level 1 Conjuration (Druid, Ranger, Sorcerer, Wizard)

• Casting Time: Action
• Range: 120 feet
• Components: V, S
• Duration: Concentration, up to 1 hour

You create a 20-foot-radius Sphere of fog centered on a point within range. The Sphere is Heavily Obscured. It lasts for the duration or until a strong wind (such as one created by Gust of Wind) disperses it.

Using a Higher-Level Spell Slot. The fog's radius increases by 20 feet for each spell slot level above 1.