Kttc Rain Totals (2024)

FAQs

What does 80% chance of rain mean? ›

The answer? An “80% chance of rain” means an 80% chance that rain will fall somewhere within the forecasted area. Rain refers to 0.01 inch or more of water falling from the sky.

Using a 40% probability of rain as an example, it does not mean (1) that 40% of the area will be covered by precipitation at given time in the given forecast area or (2) that you will be seeing precipitation 40% of the time in the given forecast area for the given forecast time period.

The "Probability of Precipitation" (PoP) simply describes the probability that the forecast grid/point in question will receive at least 0.01" of rain. So, in this example, there is a 40 percent probability for at least 0.01" of rain at the specific forecast point of interest!

Closer look at percentages

Let's use 60% as the rain chance in the forecast. That means 60% of the entire area (Central Florida) could see measurable rain at some point in the day, while the other 40% won't.

If the chance of rain is less than 50%, there's a greater likelihood of it staying dry than not. For example, a 20% chance of rain means there's an 80% chance of dry weather.

Now, note that the chance of rain says nothing about the intensity of it. In our second example in Schoharie County, even though there is just a 40% chance, that thunderstorm can still drop a hefty amount of rain in a short period of time.

The PoP is determined by multiplying two factors - the meteorologist's certainty ("C") that rain will fall in the area and how widespread precipitation is expected to be ("A"). Meteorologists calculate the Probability of Precipitation by resorting to a very simple equation: PoP = C x A.

1/100 (0.01) of an inch of rain – The first measurable amount of rainfall reported by The National Weather Service. This would not leave puddles on the ground and would slightly wet the surface. This might occur during a light shower for 2-5 minutes or even a drizzle for 2 hours.

A chance of rain refers to a probability between 30% and 50%. A likely chance of rain would be between 60% and 70%. And with any probability of precipitation higher than 75%, the forecaster has the option of describing it as “periods of rain,” “occasional rain” or simply “rain,” Blier said.

The Abstract: What does it mean when you say there's a 10% (or it could be 20 or 70 — we're using 10 as an example) chance of precipitation? Lackmann: It means that at any given fixed location within the forecast area, there is a 10% chance of receiving 1/100^th of an inch or more of precipitation.

What does it mean when the weather says 40 chance of rain? ›

It becomes a chance for precipitation when the value is 30%, 40% or 50%, which represents scattered showers. When a value is listed as 60% or 70%, the precipitation is categorized as likely with numerous areas of precipitation being forecasted.

20 to 30% chance isolated, meaning a few showers and storms possible on the radar. Scattered. 40 to 60% chance, meaning that there's a good chance for a. few showers and storms.

This myth was recently propelled by some viral TikTok video, but is not actually true. The 30% simply means that there's a 30% chance of rain falling in your forecasted area.

An 80 percent chance of rain (or of any other kind of precipitation) means the weather forecaster believes there will be an eight in ten chance (or 80 chances out of 100) of measurable precipitation (0.01 inch or more) in the area under consideration during the time interval that is specified in the weather forecast ( ...

A chance of rain refers to a probability between 30% and 50%. A likely chance of rain would be between 60% and 70%. And with any probability of precipitation higher than 75%, the forecaster has the option of describing it as “periods of rain,” “occasional rain” or simply “rain,” Blier said.

When there is a forecast for rain predicted, a percentage of rain or precipitation such as 20% or 70% appears within a weather app. This number tells users the chance or probability of seeing rain throughout the day, Your Weather confirms.