Our Proprietary 10-Day Forecast

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Current warnings over Anna, Illinois
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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 Anna, Illinois 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 Anna, Illinois 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 Union County, IL

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 Anna, Illinois

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 Anna, IL 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 Anna, IL

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 Anna, IL, 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 Anna, Illinois

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 Union County, Illinois

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)
Anna, Illinois, located in the southern part of the state, experiences a humid subtropical climate characterized by hot, humid summers and mild winters. Here's a summary of the climate in Anna, IL:

Temperature

    •   Average Annual Temperature: 56.8°F (13.8°C)
    •   Average Summer Temperature (June-August): 77.8°F (25.4°C)
    •   Average Winter Temperature (December-February): 34.9°F (1.6°C)
    •   Highest Recorded Temperature: 117°F (47.2°C) on July 14, 1954
    •   Lowest Recorded Temperature: -27°F (-32.8°C) on January 20, 1985

Precipitation

    •   Average Annual Precipitation: 46.26 inches (117.5 cm)
    •   Average Monthly Precipitation: 3.85 inches (9.8 cm)
    •   Wettest Month: May, with an average of 4.76 inches (12.1 cm) of precipitation
    •   Driest Month: February, with an average of 2.56 inches (6.5 cm) of precipitation
    •   Snowfall: Anna receives an average of 10.2 inches (26 cm) of snowfall annually.

Humidity

    •   Average Annual Humidity: 73%
    •   Summer Humidity: High, often reaching 80-90%
    •   Winter Humidity: Moderate, around 60-70%

Wind

    •   Average Wind Speed: 9.5 mph (15.3 km/h)
    •   Prevailing Wind Direction: South-southwest

Severe Weather

    •   Tornadoes: Anna is located in an area with a moderate risk of tornadoes.
    •   Thunderstorms: The area experiences frequent thunderstorms, particularly during the summer months.
    •   Floods: Heavy rainfall can cause flooding in low-lying areas.

Climate Change

    •   Like many regions worldwide, Anna is experiencing the effects of climate change. The average annual temperature has increased by about 1°F (0.6°C) since the late 19th century.
    •   Extreme weather events, such as heat waves, heavy rainfall, and droughts, are becoming more frequent and intense.
    •   Rising temperatures are also affecting the local ecosystem, leading to changes in plant and animal life.

Overall, Anna, Illinois, has a humid subtropical climate with hot, humid summers and mild winters. The area experiences moderate precipitation throughout the year, with occasional severe weather events. Climate change is impacting the region, leading to rising temperatures and more extreme weather events.

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

    •   Anna is situated in the Shawnee Hills, a region renowned for its biodiversity.

    •   The city is home to the Anna Shale Hills Nature Preserve, protecting a unique ecosystem with rare plant species.

    •   Nearby Bald Knob Cross is the highest point in Illinois, offering panoramic views of the surrounding landscape.

Science

    •   In 1863, Anna became the site of the first oil well in Illinois, sparking the state's petroleum industry.

    •   The city's limestone quarries have provided building materials for iconic structures like the Empire State Building.

    •   Anna is home to the Southern Illinois Science Center, an interactive museum showcasing scientific principles.

Personalities

    •   John A. Logan, a Civil War general and Illinois politician, was born in Anna.

    •   Charles Lindbergh, the famed aviator, spent his childhood in the city.

    •   Anna is the birthplace of Pulitzer Prize-winning novelist and poet Gwendolyn Brooks.

Tourist Attractions
1.Anna City Park

is a 100-acre park that offers a variety of activities for visitors of all ages. The park features a playground, a splash pad, a walking trail, a fishing pond, and a picnic area.

2.The Shawnee National Forest

is a 2.8-million-acre forest that is home to a variety of plant and animal life. The forest offers a variety of activities for visitors, including hiking, camping, fishing, and hunting.

3.The Garden of the Gods

is a natural sandstone formation that is located in the Shawnee National Forest. The formation is made up of massive sandstone boulders that have been eroded by wind and water over time. Visitors can hike to the top of the formation for stunning views of the surrounding area.

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