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Harleysville, PA Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Harleysville, PA
Elevation: 430ft
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Active Weather Alerts

Flash Flood Warning
Issued: 1:09 AM Jul. 15, 2025 – National Weather Service
The National Weather Service in Mount Holly has extended the

* Flash Flood Warning for...
Northwestern Montgomery County in southeastern Pennsylvania...

* Until 1115 PM EDT.

* At 909 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Flooding impacts will continue, but no additional
rainfall is expected. Flash flooding is ongoing or expected to
begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.

* For Perkiomen Creek at East Greenville:
At 8:45pm the stage was 6.37 feet.
Flood Stage is 5 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.

Move to higher ground now. Act quickly to protect your life.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.

Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.

&&


FLASH FLOOD...RADAR INDICATED

Flood Watch
Issued: 6:37 PM Jul. 14, 2025 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT UNTIL 2 AM EDT TUESDAY...

* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of New Jersey, including the following areas,
Hunterdon, Mercer, Middlesex, Morris, Somerset and Warren and
Pennsylvania, including the following areas, Berks, Delaware,
Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks,
Northampton, Philadelphia, Upper Bucks, Western Chester and
Western Montgomery.

* WHEN...Until 2 AM EDT Tuesday.

* IMPACTS...Excessive runoff may result in flooding of creeks,
streams, and other low-lying and flood-prone locations. Flooding
may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
- Widespread rain amounts of 1 to 2 inches are possible, with
localized amounts over 3 inches possible.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

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