Our Proprietary 10-Day Forecast

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Current warnings over Tarrtown, 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 Tarrtown, 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 Tarrtown, 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 Armstrong 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 Tarrtown, 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 Tarrtown, 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 Tarrtown, 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 Tarrtown, 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 Tarrtown, 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 Armstrong 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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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Tarrtown, PA Climate Summary

General Climate


    •   Humid subtropical climate with hot, humid summers and cold, snowy winters.

Temperature


    •   Average annual temperature: 52.5°F (11.4°C)
    •   Average summer temperature (June-August): 72.8°F (22.7°C)
    •   Average winter temperature (December-February): 28.7°F (-1.8°C)
    •   Record high temperature: 102°F (38.9°C)
    •   Record low temperature: -18°F (-28.3°C)

Precipitation


    •   Average annual precipitation: 42.7 inches (1084 mm)
    •   Average snowfall: 21.5 inches (54.6 cm)
    •   Most precipitation occurs in May and June.

Humidity


    •   Average annual relative humidity: 70%
    •   Summers are humid, with relative humidity often exceeding 80%.

Wind


    •   Prevailing wind direction: West-southwest
    •   Average wind speed: 10 mph (16 km/h)

Sunshine


    •   Average annual sunshine: 2,400 hours
    •   Sunniest months: June and July

Growing Season


    •   Average frost-free period: 180 days
    •   Last spring frost: April 20th
    •   First fall frost: October 17th

Climate Extremes


    •   Tarrtown has experienced severe weather events, including:
    •   Heat waves
    •   Thunderstorms
    •   Tornados
    •   Winter storms

Climate Change Impacts


    •   Climate change is expected to impact Tarrtown's climate in the following ways:
    •   Increased temperatures
    •   More frequent and intense heat waves
    •   Heavier precipitation events
    •   Changes in the timing and duration of the growing season

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

    •   Tarrtown is home to the Tarrtown Bog, a 125-acre wetland ecosystem with diverse flora and fauna, including carnivorous plants and rare amphibians.

Science

    •   The Tarrtown Observatory, established in 1930, was a renowned astronomical research center. It played a significant role in the discovery of the Kuiper Belt, a region of icy bodies beyond Neptune.

Personalities

  • Lewis Tarr (1754-1829):

    Revolutionary War veteran and founder of Tarrtown. He established a sawmill and gristmill that became the economic backbone of the community.

  • Dr. Robert E. Wilson (1893-1964):

    Physicist and director of the Tarrtown Observatory. He made important contributions to nuclear physics and served as the first chairman of the Fermi National Accelerator Laboratory.

  • Dr. Frank A. Pitelka (1916-2010):

    Ecologist and professor at the University of California, Berkeley. He conducted groundbreaking research on the ecology of the Tarrtown Bog, contributing to the understanding of wetland ecosystems.

    • Tourist Attractions
    1.Valley Forge National Historical Park

    (King of Prussia, PA): This historic site commemorates the winter encampment of the Continental Army during the American Revolutionary War. Visitors can explore the park's reconstructed buildings, monuments, and hiking trails.

    2.Longwood Gardens

    (Kennett Square, PA): This world-renowned botanical garden features over 1,000 acres of gardens, fountains, and sculptures. Visitors can stroll through the gardens, attend concerts and exhibitions, and enjoy the beauty of nature.

    3.Brandywine River Museum of Art

    (Chadds Ford, PA): This museum houses a collection of American art, including works by the Wyeth family. Visitors can view paintings, sculptures, and other works of art, as well as explore the museum's grounds and gardens.

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