CARIBOU, Maine — Moderate to heavy rainfall continued in many parts of the state on Labor Day, bringing weather watches for Mainers through this evening and into tomorrow.

A hazardous weather outlook was in effect for east central Maine, northern Maine and southeast Maine into tonight and a flash flood watch was in effect for portions of western Maine and coastal areas through this evening and into tomorrow.

According to the National Weather Service in Caribou, the hazardous weather outlook warns of projected showers and thunderstorms that could bring rain through Tuesday, as a series of fronts cross the area. The rain will likely fall heavily at times with 1.5 to 2.5 inches expected, with some locally higher amounts. It could produce areas of ponding water on roads or cause streams and creeks to rise significantly and may cause minor flooding.

The flash flood watch includes northern Oxford, northern Franklin, central Somerset, southern Oxford, southern Franklin, southern Somerset, interior York, interior Cumberland, Androscoggin, Kennebec, interior Waldo, coastal York, coastal Cumberland, Sagadahoc, Lincoln, Knox and coastal Waldo counties, as well as parts of New Hampshire.

Occasional heavy showers with embedded thunderstorms from this morning through this evening will lead to the threat of flash flooding, according to the NWS. Rainfall totals of approximately two inches will be common in the watch area through this evening, but locally higher amounts in heavier downpours could occur, which could lead to flash flooding.

Flash flooding of streams and creeks, low-lying areas and areas of poor drainage is possible.