what is precipitation in weather report
Precipitation in a weather report means any water falling from the sky to the ground, such as rain, drizzle, snow, sleet, hail, or ice pellets.
Quick Scoop: What âPrecipitationâ Really Means
In meteorology, precipitation is the product of condensed water vapour in the atmosphere that becomes heavy enough to fall from clouds under gravity. This includes many different forms:
- Rain and drizzle.
- Snow.
- Sleet or mixed rain and snow.
- Hail and ice pellets.
So when you see âprecipitationâ in a weather report, it isnât just about rain; itâs the umbrella term (no pun intended) for any type of water falling from clouds to the surface.
How It Shows Up in Weather Reports
Youâll typically see precipitation on forecasts in a few ways:
- A simple word like ârain,â âsnow,â or âshowersâ describing the type of precipitation expected.
- âChance of precipitationâ or âPoPâ as a percentage, such as 30% or 80%, indicating how likely it is that measurable precipitation will occur in the forecast period.
That percentage does not tell you how long it will rain or how heavy it will be; it only shows the likelihood that some measurable precipitation will occur.
A Simple Example
If your app says:
- â60% chance of precipitation, light rainâ between 2â5 PM,
that means forecasters think there is a fairly good chance that some form of measurable water (in this case, rain) will fall in your area sometime in that window, but it might be brief or light.
TL;DR: In a weather report, âprecipitationâ is the general term for any water falling from cloudsârain, snow, sleet, hail, or drizzleâand the âchance of precipitationâ is the probability that some of that will actually reach the ground in your area during the forecast period.
Information gathered from public forums or data available on the internet and portrayed here.