A frontal weather system is set to deliver 1 to 2 inches of rain to the Lehigh Valley over the Memorial Day weekend, according to the National Weather Service.
The incoming moisture is expected to alleviate ongoing drought conditions across eastern Pennsylvania and western New Jersey.
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Although the rain coincides with holiday observances, the region needs the rainfall to counter the dry spell.
Timing and Accumulation
Precipitation will spread northward on Friday night, becoming steadier from Saturday into Saturday night before tapering off on Sunday.
The National Weather Service reported that rainfall totals through Friday night will remain minimal, with most accumulation occurring over the weekend.
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A "cold air damming" setup will keep conditions cool, cloudy, and significantly below average throughout the weekend.
A noticeable onshore breeze is projected to develop on Saturday, maintaining a stable atmospheric environment that keeps the risk of thunderstorms very low despite high moisture levels.
Atmospheric conditions are expected to improve on Sunday as the system departs the region.
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However, temperatures will stay below average, and the active pattern may bring additional showers on Memorial Day Monday.
