Kttc Rain Totals (2024)

FAQs

What does 80 percent 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.

We enjoy over 250 days of sunshine in the Alamo City and the average annual precipitation for San Antonio is just 32.91 inches.

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.

When you see a "100% chance of rain," it doesn't mean it's going to pour everywhere, all the time. Think of it like this: the forecasters are super confident that rain will fall somewhere within a certain area, but they're not sure exactly where or for how long.

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.

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 Piney Woods is the eastern region of Texas and is within the humid subtropical climate zone. It receives the most rainfall; more than 60 inches (1,500 mm) annually in the far east.

Rainfall rate is generally described as light, moderate or heavy. Light rainfall is considered less than 0.10 inches of rain per hour. Moderate rainfall measures 0.10 to 0.30 inches of rain per hour. Heavy rainfall is more than 0.30 inches of rain per hour.

Is a quarter inch of rain a lot in a day? ›

A quarter inch is not a lot of rain.

Table 1 shows that one inch of water that does not run off will wet the soil 12 inches deep; but it will take more water to wet a loam, 1.5 to 2.0 inches and even more, 2.5 inches to wet a clay; and again this is assuming that no water runs off.

Does 100% chance of precipitation mean it will rain all day? A common misconception about PoP forecasts is that a 100% chance of rain means it will rain heavily all day long. This is not always true because PoP doesn't portray anything about the intensity or the duration of the precipitation.

In the Bible, rain is often portrayed as a symbol of God's abundant provision for His creation. The Book of Psalms, in particular, is rich in references to rain as a manifestation of God's care for His people. Psalm 65:9-10 proclaims, "You care for the land and water it; you enrich it abundantly.

Algorithms don't have that kind of discernment yet, which in turn makes app predictions like precipitation and storms somewhat imprecise. Algorithms also can't compete with the human experience of living somewhere and knowing how weather behaves in that particular 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 ( ...

According to the US National Weather Service (NWS), the official definition of the percentage of probability of rain - the Probability of Precipitation (PoP) - is the statistical probability that a given point in an area for which the forecast is being prepared, receives at least 0.01 mm of precipitation in the ...

Another way to think of this is as a fraction out of 100. So if you had an 80% success rate at a task, this would mean that for every 100 attempts, 80 of them would be a success.

1. that 50 percent of the area will get wet. 2. or that it will rain 50 percent of the time. A 50 percent chance of rain means there is a 50 percent chance for any one spot in the forecast area to get wet during the forecast period.