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Current warnings over Donora, 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 Donora, 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 Donora, 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 Washington 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 Donora, 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 Donora, 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 Donora, 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 Donora, 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 Donora, 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 Washington 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)
Donora, Pennsylvania Climate Summary

Temperature

    •   Average annual temperature: 53.5°F (11.9°C)
    •   Average summer temperature (June-August): 72.5°F (22.5°C)
    •   Average winter temperature (December-February): 31.7°F (-0.2°C)

Precipitation

    •   Average annual precipitation: 39.2 inches (996 mm)
    •   Average snowfall: 36.1 inches (917 mm)
    •   Wettest month: June (4.7 inches or 119 mm)
    •   Driest month: February (2.1 inches or 53 mm)

Humidity

    •   Average annual relative humidity: 72%
    •   Highest humidity: July (78%)
    •   Lowest humidity: February (65%)

Wind

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

Sunshine

    •   Average annual sunshine hours: 2,500
    •   Sunniest month: July (280 hours)
    •   Cloudiest month: December (160 hours)

Extreme Weather

    •   Donora is located in a region that experiences occasional severe thunderstorms, including tornadoes and hail.
    •   The area is also susceptible to flooding, particularly during heavy rainfall events.
    •   Winters can be cold and snowy, with occasional blizzards.

Overall Climate

Donora, Pennsylvania has a humid continental climate, characterized by warm, humid summers and cold, snowy winters. The area receives moderate precipitation throughout the year, with occasional extreme weather events.

Facts & Historical Information
(made with AI, use with caution)
Donora, Pennsylvania, gained notoriety in 1948 due to a deadly smog event that claimed the lives of 20 people and sickened thousands. The smog was caused by a combination of industrial pollution and weather conditions that trapped the pollutants in the valley where Donora is located.

Prior to the smog event, Donora was a thriving industrial town known for its zinc and steel mills. However, the air pollution from these industries had been a problem for years, and the smog event was a tragic culmination of the town's environmental neglect.

In the aftermath of the smog event, Donora became a symbol of the dangers of industrial pollution. The town's experience led to the passage of the Clean Air Act of 1963, which was the first major federal legislation to address air pollution.

Today, Donora is a quiet town with a population of around 4,000 people. The town's industrial past is still evident in the abandoned factories and mills that dot the landscape. However, Donora is also home to a number of natural attractions, including the Donora Smog Museum and the Monongahela River.

Tourist Attractions
1.The Monongahela River

is a scenic river that flows through Donora. There are several parks and boat launches along the river, making it a great place to enjoy the outdoors.

2.The Donora Historical Society

is a museum that tells the story of Donora's past. The museum has exhibits on the town's history, industry, and people.

3.The Donora Smog Museum

is a museum that tells the story of the Donora Smog, a deadly air pollution event that occurred in 1948. The museum has exhibits on the smog's causes, effects, and aftermath.

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