Our Proprietary 10-Day Forecast

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Current warnings over Aldan, 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 Aldan, 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 Aldan, 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 Aldan, 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 Aldan, 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 Aldan, 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 Aldan, 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 Aldan, 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.
 
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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.
 
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Climate Summary
(made with AI, use with caution)
Aldan, Pennsylvania Climate Summary

General Climate

    •   Humid subtropical climate (Köppen Cfa)
    •   Warm, humid summers and mild, moderately cold winters
    •   Ample precipitation throughout the year

Temperature

    •   Average annual temperature: 55.9°F (13.3°C)
    •   Average summer temperature (June-August): 75.2°F (24°C)
    •   Average winter temperature (December-February): 32.6°F (0.3°C)
    •   Record high temperature: 102°F (38.9°C)
    •   Record low temperature: -11°F (-23.9°C)

Precipitation

    •   Average annual precipitation: 43.9 inches (1115 mm)
    •   Average monthly precipitation: 3.6 inches (91 mm)
    •   Wettest month: July (4.6 inches / 117 mm)
    •   Driest month: February (2.6 inches / 66 mm)
    •   Snowfall: Average of 20.4 inches (52 cm) per year

Other Climate Characteristics

    •   Sunshine

Aldan receives an average of 2,080 hours of sunshine annually.

    •   Relative Humidity

The average relative humidity is 72%.

    •   Wind

Prevailing winds are from the west and southwest.

    •   Tornado Risk

Aldan is located in a region with a moderate risk of tornadoes.

    •   Climate Change Impacts

Climate change is expected to bring warmer temperatures, increased precipitation, and more frequent and intense extreme weather events to Aldan.

Seasonal Climate

    •   Spring (March-May)

Mild temperatures, increasing precipitation, and occasional thunderstorms.

    •   Summer (June-August)

Warm and humid, with frequent thunderstorms.

    •   Autumn (September-November)

Mild temperatures, decreasing precipitation, and changing foliage.

    •   Winter (December-February)

Cold and moderately snowy, with occasional periods of freezing rain or sleet.

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

    •   Aldan is home to the John Heinz National Wildlife Refuge at Tinicum, a 1,200-acre tidal marsh and estuarine system.

    •   The refuge supports a diverse array of wildlife, including bald eagles, osprey, and migratory waterfowl.

Science

    •   In 1959, Aldan became the site of the first successful demonstration of a laser by Theodore Maiman at Hughes Research Laboratories.

    •   The laser, a device that emits a concentrated beam of light, has had a profound impact on science, technology, and medicine.

Personalities

    •   Aldan was the birthplace of Mary Katherine Goddard (1738-1816), a publisher and postmaster who printed the first official copies of the Declaration of Independence.

    •   The town is also home to the birthplace of William Penn (1644-1718), the founder of Pennsylvania.

Tourist Attractions
1.Ringing Rocks Park

is a unique geological formation featuring large boulders that produce a metallic ringing sound when struck with a hammer. Visitors can explore the boulders and enjoy the scenic views of the surrounding countryside.

2.Nockamixon State Park

is a large park offering a variety of recreational activities, including hiking, biking, boating, fishing, and swimming. The park is also home to the Nockamixon Cliffs Natural Area, which features dramatic cliffs and waterfalls.

3.The Moravian Historical Society

is a museum that tells the story of the Moravian Church in America. The museum houses a collection of artifacts, documents, and artwork that illustrate the history of the Moravian Church in Pennsylvania.

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