STORM WATCH: More storms, possibly severe and flash flooding possible tonight; quieter weather for Sunday
Strong to severe thunderstorms, torrential rain, dangerous rip currents, poor air quality from wildfire smoke and isolated flash flooding are the primary concerns through tonight. Dry, comfortable weather returns Sunday and Monday before another unsettled period develops Tuesday into Wednesday.
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What to expect
Multiple rounds of showers and thunderstorms will move across Long Island this evening before ending overnight.
Some storms may become severe, producing damaging wind gusts, torrential rainfall and an isolated tornado cannot be ruled out, especially across western Long Island.
Heavy rainfall rates of 1.5" to 2"s per hour could produce isolated flash flooding, particularly in poor drainage and urban areas.
Wildfire smoke may continue to reduce air quality and visibility into this evening before improving overnight.
Dangerous rip currents continue at Atlantic beaches through tonight, with elevated surf potentially lingering into Sunday morning for Suffolk County.
Sunny, less humid weather returns Sunday and Monday before another round of showers and thunderstorms develops Tuesday into Wednesday.
Weather alerts
An air quality alert is in effect until midnight tonight due to elevated levels of wildfire smoke. Sensitive groups should limit prolonged outdoor activity.
A high risk of rip currents is in effect through this evening for Atlantic-facing beaches. Dangerous surf conditions are expected. The high risk may continue into Sunday morning for Suffolk County beaches.
A flood Watch is no longer in effect for Long Island. However, isolated flash flooding remains possible, especially across Western Long Island where the heaviest thunderstorms develop.
A severe thunderstorm risk (SPC Slight Risk) is in effect through this evening. Damaging wind gusts are the primary threat, with an isolated tornado also possible if stronger storms develop.
FORECAST
Tonight: Showers and thunderstorms likely this evening, with some storms capable of producing damaging winds, torrential rainfall and frequent lightning before diminishing overnight. Areas of localized flash flooding are possible, especially across Western Long Island. Temperatures in the low 70s.
Sunday: Sunny, less humid and much more comfortable. Temperatures in the low to mid-80s with a refreshing northwest breeze.
Sunday night: Mostly clear and cool, with temperatures in the low to mid-60s.
Monday: Sunny, with pleasant humidity. Temperatures around 80.
Tuesday: Mostly cloudy, with showers becoming more numerous during the afternoon. Thunderstorms are possible late in the day. Temperatures around 80.
Wednesday: Mostly cloudy, with lingering showers and scattered thunderstorms, especially during the afternoon. Temperatures in the mid-80s.
Thursday: Mostly sunny and seasonably warm. Temperatures in the low to mid-80s.
Friday: Mostly sunny, with comfortable humidity. Temperatures in the low to mid-80s.
