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Call it the first half of a punch for the Lehigh Valley.
According to the National Weather Service, thunderstorms are expected this afternoon and evening in the region. Some storms could be severe with destructive winds and heavy rains that could lead to localized floods.
This is the first of two systems expected in the region over the next 48 hours, potentially affecting parts of Bucks, Berks, Carbon, Delaware, Lehigh, Northampton and Montgomery counties.
On Thursday night, another pouring rain is expected to occur and result in additional flooding.
Allentown has already received 4.76 inches of rain this month, about 1.02 inches above normal, according to the weather service.
The city has already recorded 45.85 inches of rain this year, 12.34 inches higher than normal. Total precipitation last year was almost 3 inches.
Break the serious threat
According to the meteorological service, there are significant time differences between the models with respect to the current serious threat. One solution is about three hours less, which could mean the difference between strong winds affecting the area where the main hazard is mainly rain.
Rainfall could start in the afternoon, with the biggest threat in the early evening. Meteorologists say some of the storms that are spreading in the area could be "effective rain producers", increasing the risk of flash floods.
If you leave home after 2 pm today, take an umbrella with you.
The good news, according to Mount Holly's forecast office, is that storms are unlikely to support severe hail. Meteorologists say that wind profiles also do not show support for much of the tornado threat.
Long-term …
According to the weather forecast, a cold front should stop in our southeast and south for Thursday and Friday. The expected pattern shows the rain potential south of our region until Thursday and Friday morning.
The rain is expected to spread northward in the Lehigh Valley on Thursday late in the day and early Friday. The rain can sometimes become moderate to strong, mainly on Thursday night.
The area should start drying out on Friday, with plenty of sun and cooler temperatures expected for the weekend.
Here is the Lehigh Valley Extended Forecast of the National Meteorological Service:
Today & # 39; hui
Showers and thunderstorms, especially after 14h. Some storms could be severe, with destructive winds and heavy rains. Front fog 9h. Raised near 80. Slight south winds becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 80%. The new rains are between a tenth and a quarter of an inch, except in thunderstorms.
Tonight
Showers and thunderstorms, mostly before midnight. Some storms could be severe, with destructive winds and heavy rains. Low around 56. The west wind is about 7 mph and heads north after midnight. Chance of precipitation is 80%. The new rains are between a tenth and a quarter of an inch, except in thunderstorms.
Thursday
Partly sunny, with a maximum near 68. Wind north around 6 mph.
Thursday night
A chance of rain, then of probable rain and perhaps a thunderstorm after midnight. Some of the storms could cause heavy rainfall. Cloudy, with a minimum around 57. Wind southeast around 6 mph becoming calm in the evening. The chance of precipitation is 60%. The new rainfall is between a quarter and a half of the possible inch.
Friday
A chance of rain. Cloudy, with a maximum around 68. Light and variable wind becoming southeast around 5 mph in the morning. The chance of precipitation is 40%. New precipitation can reach less than one-tenth of an inch.
Friday night
Partly cloudy, with a minimum around 56.
Saturday
Sunny, with a maximum near 69.
Saturday night
Very clear, with a low around 50.
Sunday
Sunny, with a maximum near 68.
Sunday night
Partly cloudy, with a minimum around 52.
Monday
Sunny, with a maximum near 69.
Monday evening
Cloudy, with a minimum around 57.
Tuesday
A chance of showers. Cloudy with a maximum of 74. Chance of precipitation: 30%.
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