Hazardous Weather Outlook Issued For CT Next 2 Days: What You Need To Know

CONNECTICUT — Heavy rain moves into the state Monday night, and up to five inches could fall in parts of Connecticut before it tapers off late Tuesday.

A flash flood watch and hazardous weather outlook have been issued for the entire state. There is also a chance for thunderstorms Monday afternoon and night. Rainfall rates of an inch per hour are possible Tuesday morning in some parts of the state.

"The heaviest rain is expected around 8 AM on Tuesday," WFSB 3 TV meteorologists Connor Lewis with Lorin Richardson wrote. "We may get periods of heavy rain, which could trigger a flash flood sometime Tuesday morning. Rainfall rates exceeding one inch per hour will be isolated. We are generally expecting moderate rain for most of Tuesday morning, and most of the rain will be diffused over a long period of time to prevent flash flooding." (You can watch video of the WFSB 3 TV forecast here).

The rain Monday is expected to be more off-and-on and the steadier rain moves in on Monday night, the National Weather Service said. Once the rain ends on Wednesday, there is nothing but sunshine in the forecast through next Sunday, with cooler temperatures.

Here are the latest advisories/updates from the National Weather Service:

Southern Connecticut:

A flood watch remains in effect from 2 p.m. Monday through Tuesday afternoon.

"Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas...Rainfall amounts of two to four inches are expected across much of the area. This may result in flooding of urban and poor drainage areas.

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Hartford/Tolland/Windham:

A flood watch is in effect until Tuesday afternoon. "Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas....Rainfall amounts of 3 to 5 inches are expected over much of Southern New England with localized amounts of 5 to 7 inches or more.

Litchfield County

A flood watch is in effect until Tuesday afternoon. "Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas....Heavy rainfall and embedded thunderstorms will develop this afternoon, and continue through Tuesday morning across the watch area. Localized rainfall rates of one inch per hour or greater may lead to isolated flash flooding..."

Southern Connecticut extended forecast details:

Labor Day: A chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 67. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Tuesday: Showers. The rain could be heavy at times. High near 73. Light and variable wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

Tuesday Night: Showers, mainly before 9pm. The rain could be heavy at times. Low around 61. Northeast wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday: A 30 percent chance of showers. Mostly cloudy, with a high near 72. Northeast wind around 11 mph, with gusts as high as 21 mph.

Wednesday Night: A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 59.

Northern Connecticut extended forecast details:

Labor Day: Showers likely, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. Patchy fog between 2pm and 3pm. Otherwise, cloudy, with a high near 73. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Showers. The rain could be heavy at times. Low around 61. Light northeast wind. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

Tuesday: Showers. The rain could be heavy at times. Patchy fog after noon. High near 66. Northeast wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

Tuesday Night: Showers likely, mainly before 7pm. Patchy fog. Otherwise, mostly cloudy, with a low around 58. Northeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: A slight chance of showers before noon. Patchy fog before 10am. Otherwise, partly sunny, with a high near 74. Northeast wind around 7 mph. Chance of precipitation is 20%.