Everything within an area of heavy rain or heavy snowfall is Lightly Obscured, and creatures in the area have Disadvantage on all Wisdom (Perception) checks. Heavy rain also extinguishes open flames.
Heavy Precipitation
HazardXDMGp. 692024
Raw data
{
"name": "Heavy Precipitation",
"page": 69,
"__prop": "hazard",
"source": "XDMG",
"entries": [
"Everything within an area of heavy rain or heavy snowfall is {@variantrule Lightly Obscured|XPHB}, and creatures in the area have {@variantrule Disadvantage|XPHB} on all Wisdom ({@skill Perception|XPHB}) checks. Heavy rain also extinguishes open flames."
],
"trapHazType": "ENV"
}