Hazardous Weather Outlook Issued For Long Island

The National Weather Service has issued the following hazardous weather outlook for Long Island:

There is an isolated flash flood threat through this evening ahead of a cold frontal passage. The heavy rain threat will taper off from northwest to southeast late tonight behind the front.

Rain is likely on the island until early Friday. Hourly rainfall rates of up to 2 inches will be possible. There's also a chance of thunderstorms until around midnight.

Several inches of rain fell on the island Thursday morning, making many roads impassable. The Long Beach School District was forced to cancel its first day of school.

The full forecast:

Thursday afternoon- Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 81. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday night- Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could produce heavy rainfall. Patchy fog after 10pm. Low around 67. South wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Friday-A 30 percent chance of showers, mainly before 7am. Partly sunny, with a high near 78. North wind 10 to 13 mph.

Friday Night- Partly cloudy, with a low around 59. East wind around 9 mph.

Saturday- Sunny, with a high near 72. Northeast wind 11 to 15 mph.

Saturday Night- Partly cloudy, with a low around 60.

Sunday- A 30 percent chance of showers after noon. Mostly cloudy, with a high near 78.

Sunday Night- Showers likely, mainly before 3am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

Monday- Mostly sunny, with a high near 80.