An Early Warning Weather Day has been launched in advance of some potentially heaving weekend rain.

Chief Meteorologist Bruce DePrest said rain could be in the state as early as Friday afternoon in the form of isolated showers.

The main event, however, is for Saturday.

"Some of our guidance models are outputting 1 to 3 inches of rain with some isolated 3 to 6 inch totals," DePrest said.

All of CT is under a Flash Flood Watch through Sunday morning.

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The threat for severe weather won't be as high as it was last weekend, but an isolated severe storm can't be ruled out.

"The main focus is flash flooding and that threat could be enhanced by the fact we’ve already had a lot of rain and flash flooding in parts of the state this week," DePrest said.

Futurecast showed heavy rain in extreme northern Connecticut by mid-morning on Saturday. Heavy rain then develops over the interior portions of the state by early afternoon.

High temperatures will only be on the upper 60s and low 70s.

"Showers will become numerous and the rain could be heavy at times. There is even a chance for some thunder although the risk of severe weather will be low," DePrest said.

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An isolated thunderstorm can't be completely ruled out.

More showers are likely Saturday night, and some could be heavy.

Temperatures will bottom out in the 60s.

Sunday probably won't be quite as wet, but it may not start out dry. Showers are likely and there will be plenty of clouds.

Again, temperatures may not rise out of the 70s.

The weather pattern responsible for the rain will be slow-moving, so showers are also in the forecast for Monday and Tuesday.

There could be some locally heavy rainfall both days. The air will turn a little warmer and a lot more humid, especially by Tuesday.

Highs for Monday and Tuesday may finally head back into the 80s.

There may be a break from the rain on Wednesday, although a lingering shower or two can’t be ruled out.

Read the complete technical discussion here.

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