Our Proprietary 10-Day Forecast

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Current warnings over Gretna, Virginia
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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 Gretna, Virginia 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 Gretna, Virginia 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 Pittsylvania County, VA

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 Gretna, Virginia

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 Gretna, VA 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 Gretna, VA

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 Gretna, VA, 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 Gretna, Virginia

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 Pittsylvania County, Virginia

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)
Gretna, Virginia is located in the Piedmont region of the state, about 100 miles west of Richmond. The climate in Gretna is humid subtropical, with hot, humid summers and mild, cool winters.

Average Temperatures

    •   Summer

The average high temperature in July is 88°F (31°C), and the average low temperature is 68°F (20°C).

    •   Winter

The average high temperature in January is 44°F (7°C), and the average low temperature is 28°F (-2°C).

Precipitation

    •   Average Annual Precipitation

The average annual precipitation in Gretna is 42 inches (107 cm).

    •   Rain

Most of the precipitation in Gretna falls as rain, with an average of 38 inches (97 cm) per year.

    •   Snow

The average annual snowfall in Gretna is 10 inches (25 cm).

Severe Weather

    •   Tornadoes

Gretna is located in an area with a moderate risk of tornadoes. The average number of tornadoes per year in Gretna is 1.

    •   Hurricanes

Gretna is located inland, and is not directly affected by hurricanes. However, the remnants of hurricanes can sometimes bring heavy rain and flooding to the area.

    •   Flooding

Gretna is located near the Dan River, which is prone to flooding. The average number of floods per year in Gretna is 1.

Climate Change

    •   Rising Temperatures

The average temperature in Gretna has increased by 1.5°F (0.8°C) since 1895.

    •   More Extreme Weather

Gretna is experiencing more extreme weather events, such as heat waves, droughts, and floods.

    •   Sea Level Rise

Gretna is not located on the coast, so sea level rise is not a direct threat. However, sea level rise could lead to more flooding in the area.

Overall

The climate in Gretna, Virginia is humid subtropical, with hot, humid summers and mild, cool winters. The area is prone to severe weather, such as tornadoes, hurricanes, and floods. Climate change is also causing the average temperature in Gretna to rise and leading to more extreme weather events.

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

    •   Gretna is nestled within the scenic Smith Mountain Lake region, renowned for its crystal-clear waters and abundant wildlife.

    •   The town is home to the Smith Mountain Lake State Park, offering hiking trails, fishing, and wildlife viewing opportunities.

    •   The park's diverse ecosystem supports a variety of native plants and animals, including bald eagles, peregrine falcons, and black bears.

Science

    •   Gretna is the birthplace of Dr. William Henry Perkin, Jr. (1860-1929), a renowned chemist who discovered the first synthetic dye, mauveine.

    •   Perkin's discovery revolutionized the textile industry and laid the foundation for modern chemistry.

    •   The town is also home to the Gretna Technology Park, a hub for advanced manufacturing and technology companies.

Personalities

    •   Harriet Tubman (1822-1913), the famed abolitionist and \

Tourist Attractions
1.Smith Mountain Lake State Park:

A sprawling park with a 20,000-acre lake, offering boating, fishing, swimming, hiking, and camping.

2.Appomattox Court House National Historical Park:

The site of the surrender of Confederate General Robert E. Lee to Union General Ulysses S. Grant, ending the American Civil War.

3.National D-Day Memorial:

A memorial dedicated to the American soldiers who fought and died on D-Day during World War II.

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