Our Proprietary 10-Day Forecast

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Current warnings over Brookhaven, Pennsylvania
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Brookhaven, Pennsylvania red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Brookhaven, Pennsylvania red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Delaware County, PA

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Brookhaven, Pennsylvania

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Brookhaven, PA please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Brookhaven, PA

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Brookhaven, PA, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Brookhaven, Pennsylvania

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Delaware County, Pennsylvania

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Brookhaven, Pennsylvania

Climate Summary

    •   Köppen Climate Classification

Humid subtropical (Cfa)

    •   Average Annual Temperature

55.2°F (12.9°C)

    •   Average Annual Precipitation

44.2 inches (112.3 cm)

    •   Average Annual Snowfall

20.9 inches (53.1 cm)

Temperature

    •   Average January Temperature

30.4°F (-0.9°C)

    •   Average July Temperature

76.7°F (24.8°C)

    •   Record High Temperature

105°F (40.6°C)

    •   Record Low Temperature

-14°F (-25.6°C)

Precipitation

    •   Average Annual Precipitation

44.2 inches (112.3 cm)

    •   Average Number of Rainy Days

110

    •   Average Number of Snow Days

13

    •   Wettest Month

August (4.7 inches)

    •   Driest Month

February (2.6 inches)

Other Climate Data

    •   Average Annual Sunshine

2,500 hours

    •   Average Relative Humidity

68%

    •   Average Wind Speed

10.2 mph (16.4 km/h)

    •   Prevailing Wind Direction

West-southwest

Climate Trends

    •   Rising Temperatures

Average temperatures in Brookhaven have increased by about 2°F (1.1°C) since the late 19th century.

    •   Increased Precipitation

Annual precipitation has increased by about 5 inches (12.7 cm) since the late 19th century.

    •   More Extreme Weather Events

Brookhaven has experienced an increase in the frequency and intensity of extreme weather events, such as heat waves, droughts, and heavy rainfall.

Climate Impacts

    •   Heat-Related Illnesses

Rising temperatures can lead to an increase in heat-related illnesses, such as heat stroke and heat exhaustion.

    •   Flooding

Increased precipitation can lead to more frequent and severe flooding events.

    •   Droughts

Prolonged periods of low precipitation can lead to droughts, which can impact water availability and agricultural production.

    •   Air Quality

Extreme heat and air pollution can contribute to poor air quality, which can have negative health impacts.

Facts & Historical Information
(made with AI, use with caution)
Natural History and Science

    •   Brookhaven National Laboratory (BNL), a world-renowned research facility, is located in the town. BNL's discoveries include the first synthetic element, plutonium, and the development of medical imaging techniques.

Historical Personalities

  • Isidor Isaac Rabi:

    A Nobel Prize-winning physicist who was born and raised in Brookhaven. His work on nuclear magnetic resonance (NMR) revolutionized medicine.

  • William Penn:

    The founder of Pennsylvania, granted the land that became Brookhaven to his daughter Letitia Penn in 1701.

  • John Bartram:

    A renowned botanist and explorer, established a botanical garden in Brookhaven in the 18th century. His work helped shape American horticulture.

    Other Interesting Facts

        •   The town's name is derived from the brook that flows through it.

        •   Brookhaven is home to the John Bartram Arboretum, a 45-acre botanical garden with over 1,000 species of plants.

        •   The town is also known for its historic architecture, including the 18th-century Letitia Penn House and the 19th-century Brookhaven Hotel.

  • Tourist Attractions
    1.Elmwood Park Zoo

    is a 16-acre zoo that is home to over 100 different species of animals, including lions, tigers, bears, monkeys, and reptiles. The zoo also has a variety of educational programs and exhibits, as well as a playground and picnic area.

    2.John Heinz National Wildlife Refuge at Tinicum

    is a 1,200-acre wildlife refuge that is home to a variety of birds, mammals, and reptiles. The refuge has a variety of trails and boardwalks that allow visitors to explore the different habitats, as well as a visitor center with exhibits on the refuge's wildlife and history.

    3.The Franklin Institute

    is a science museum that is located in Center City Philadelphia, just a short drive from Brookhaven. The museum has over 200 interactive exhibits on a variety of science topics, including physics, chemistry, biology, and astronomy. The museum also has a planetarium and a theater that shows science-themed films.

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