Forecasters from the National Weather Service have issued a flood watch in greater Glenside and are calling for “flash flooding and severe thunderstorm potential” from August 6-10.

According to their models, isolated to scattered storms are possible tonight as Tropical Storm Debby moves north.

“Severe weather isn’t our only threat tonight. We have a flood watch in effect for portions of the region and are concerned about rainfall rates in urban areas along with areas with poor drainage. Small streams and flashy basins may also see some river flood potential as well,” the agency said in a post this afternoon.

The Oreland Volunteer Fire Company posted the following cautionary message for area residents:

There’s a lot of rain coming. The forecast is 1.5-2 inches in the next 24 hours. It won’t stop there. Depending on its track, Debby could dump as much as 4-8 inches on us Friday through Saturday. Please do everything you can to stay out of flood waters. In addition to the inherent physical dangers, there is also the Ick-factor. Flooding gets into the sewers and washes raw sewage out into wherever the flood waters go.

The NWS’ most recent briefing on the incoming storm can be found below:

Their seven-day forecast is as follows:

This Afternoon

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 91. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers likely and possibly a thunderstorm before 8pm, then showers and thunderstorms likely between 8pm and 10pm, then showers and possibly a thunderstorm after 10pm. Some of the storms could produce heavy rainfall. Low around 69. South wind around 5 mph becoming east after midnight. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Wednesday

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 76. Northeast wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Northeast wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 75. East wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm. Low around 69. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers and possibly a thunderstorm. High near 79. Chance of precipitation is 90%.

Friday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.

Saturday

A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.

Saturday Night

A chance of showers before 2am. Partly cloudy, with a low around 64. Chance of precipitation is 30%.

Sunday

Sunny, with a high near 80.

Sunday Night

Mostly clear, with a low around 64.

Monday

Sunny, with a high near 81.

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