SIOUX FALLS, S.D. (KELO) — It has been a wet day in portions of KELOLAND and it won’t be the last day with rain in the forecast. Meteorologist Jaelyn Borresen takes a look at the chances for heavy rainfall.

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We have been talking a lot about rain recently in KELOLAND and more is on the way to end the week. To figure out if we are in for lighter or heavier rainfall, we have been keeping an eye on something called precipitable water, or PWAT.

This value is a measure of how much water vapor is within a vertical column of the atmosphere. Think of it like a sponge, the more moisture it holds, the more rain it can release. Let’s take a look at how this could impact KELOLAND for tomorrow.

The low pressure system will continue to move off and East River will have the best opportunity for rainfall. This area has the highest amount of available moisture, which is around 1 inch. It is a low to moderate level for precipitable water and supports the chance for lighter and scattered showers.

Going into next week, there is another chance for rain on Monday across KELOLAND, but after that mostly dry conditions will return. It will become more pleasant for the first week of fall.