Monday could have a tropical feel to it as warm and humid conditions bring a chance of thunderstorms, hail and lightning to Southern California.

An upper-level low-pressure system centered near Phoenix is expected to drift west Monday, bringing moisture into the region, according to the National Weather Service.

As the hot and cold air mix, there will be a good chance for thunderstorms on Monday.

KTLA's Storm Tracker predicts moisture over the region around 4:30 p.m. on Monday, March 18, 2024.
KTLA’s Storm Tracker predicts moisture over the region around 4:30 p.m. on Monday, March 18, 2024. (KTLA)

“The afternoon is a pretty good bet,” KTLA Meteorologist Henry DiCarlo said. “More up against the foothill and desert areas but we can’t rule out a thunderstorm developing and affecting a couple of our communities today.”

The KTLA Storm Tracker shows a surge of moisture building Monday afternoon, with the best chance for thunderstorms appearing to be between 3 p.m. and 6 p.m.

“The storms could be quite strong with some brief but very heavy rain, some hail, and some lightning,” Henry said.

The same pattern appears likely for Tuesday but the storms are “not as big, not as organized and not as long,” Henry said.

Another low-pressure system in the Pacific could bring moisture our way for the weekend.

The forecast models are still split on whether the developing storm will bring rain to the Southland.

“As we get closer we can start dialing in the timing and chance of rain,” Henry said.