A surface low-pressure system is bringing the potential for heavy rain this weekend south of the Lehigh Valley, where only a slight chance of showers is expected, the National Weather Service says.
That system, passing through Maryland and Delaware midday Saturday, is projected late Saturday night into Sunday morning to bring “a slug of rainfall moving across the Coastal Plain and out to sea,” the weather service says its Philadelphia region forecast discussion.
Most of that heavy rain will continue moving to the northeast before passing off the coast, weather service meteorologist Dean Iovino said from the Mount Holly, N.J., office. Light showers possible across the Lehigh Valley on Saturday and Sunday are not expected to be accompanied by lightning, Iovino said, with winds calm to about 5 mph expected.
At Lehigh Valley International Airport, the weather service is forecasting a slight (20%) chance of showers Saturday night followed by a 30% chance of showers Sunday into Sunday night. Temperatures are forecast to reach 87 Saturday and near 86 Sunday, which is around the normal of 85 this time of year. Nighttime lows are forecast at a seasonable 65.
Temperatures are forecast to creep up into the upper 80s on Monday then the 90s through Friday, with a daily chance for showers and thunderstorms. The weather service puts the chance for precipitation at 20% Monday, 30% Tuesday and 50% during the day Wednesday and Thursday, diminishing into the night, before a 60% chance of rain on Friday.
Visit lehighvalleylive.com/weather for the complete forecast.
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Kurt Bresswein may be reached at kbresswein@lehighvalleylive.com.
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Lehigh Valley weather: Heavy rain forecast to skirt area, with only light showers possible - lehighvalleylive.com
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