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Elev 354 ft, 41.04 °N, 74.13 °W

Allendale, NJ Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Allendale, NJ
Elevation: 354ft
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Active Weather Alerts

Flash Flood Warning
Issued: 4:25 AM Aug. 6, 2026 – National Weather Service
The National Weather Service in Upton has issued a

* Flash Flood Warning for...
Northwestern Bergen County in northeastern New Jersey...
Central Passaic County in northeastern New Jersey...
Western Rockland County in southeastern New York...

* Until 330 AM EDT.

* At 1225 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1.25 inches of
rain has already fallen in parts of western Passaic County. The
expected rainfall rate is 1 to 2.5 inches in 1 hour. Total rainfall
amounts of 1 to 2.5 inches is possible in the warned area. Flash
flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.

* Some locations that could experience flash flooding include...
Monsey, Ramsey, Ringwood, Pompton Lakes, Suffern, Sloatsburg,
Bloomingdale, Pomona, Spring Valley, Wyckoff, Stony Point, Oakland,
Wanaque, Franklin Lakes, Airmont, Upper Saddle River, Chestnut
Ridge, Hillcrest, New Square and Mount Ivy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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


&&


FLASH FLOOD...RADAR INDICATED;
EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR

Flood Advisory
Issued: 3:45 AM Aug. 6, 2026 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 245 AM EDT THURSDAY...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Western Bergen County in northeastern New Jersey...
Essex County in northeastern New Jersey...
Passaic County in northeastern New Jersey...
Western Rockland County in southeastern New York...

* WHEN...Until 245 AM EDT.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
- At 1145 PM EDT, Doppler radar indicated heavy showers and
thunderstorms approaching from western New Jersey. Minor flooding
is expected to occur in the advisory area.
- These showers and thunderstorms have a history of producing 3/4
to 1 1/2 inches of rain. If they maintain intensity, parts of the
advisory area could require flash flood warnings.
- Some locations that could experience flooding include...
Paterson, Passaic, Wayne, Bloomfield, Paramus, Ridgewood, Monsey,
Ramsey, Ringwood, Pompton Lakes, Suffern, Caldwell, Hawthorne,
Bloomingdale, Fairfield, Pomona, Clifton, West Orange, Montclair
and Fair Lawn.
- http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Be aware of your surroundings and do not drive on flooded roads.

&&



Heat Advisory
Issued: 5:53 PM Aug. 5, 2026 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THURSDAY TO 8 PM EDT
FRIDAY...

* WHAT...Heat index values up to around 100 expected.

* WHERE...Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern
Union, Hudson, Western Bergen, Western Essex, Western Passaic, and
Western Union Counties.

* WHEN...From 11 AM Thursday to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Heat Advisory is issued when the combination of heat and humidity
is expected to make it feel like it is 95 to 99 degrees for two or
more consecutive days, or 100 to 104 degrees for any length of time.

Seniors and those with chronic health problems or mental health
conditions are at an increased risk. Homes without air conditioning
can be much hotter than outdoor temperatures.

Use air conditioning to stay cool at home or go to a place that has
air conditioning. If you don't have home air conditioning, continue
to seek out cool spaces each day as long as it remains hot, and for a
few days after if your home is still hot. Check on vulnerable
friends, family members and neighbors.

To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.

&&

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