Our Proprietary 10-Day Forecast

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Current warnings over Harrison, Tennessee
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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 Harrison, Tennessee 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 Harrison, Tennessee 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 Hamilton County, TN

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 Harrison, Tennessee

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 Harrison, TN 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 Harrison, TN

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 Harrison, TN, 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 Harrison, Tennessee

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 Hamilton County, Tennessee

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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  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
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  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 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)
Harrison, Tennessee Climate Summary

General Climate

    •   Humid subtropical climate with hot, humid summers and mild winters.
    •   Average annual temperature: 57.3°F (14.1°C)
    •   Average annual precipitation: 53.6 inches (136.1 cm)

Summer (June-August)

    •   Average temperature: 76.3°F (24.6°C)
    •   High temperatures often reach the mid-80s to low 90s (°F)
    •   Humidity levels are high, making it feel even hotter.
    •   Occasional thunderstorms and heavy rainfall.

Fall (September-November)

    •   Average temperature: 59.2°F (15.1°C)
    •   Temperatures gradually cool down, with comfortable days and cool nights.
    •   Decreasing humidity levels.
    •   Foliage colors become vibrant in October and November.

Winter (December-February)

    •   Average temperature: 40.2°F (4.6°C)
    •   Cold and damp, with occasional snowfall.
    •   Temperatures rarely drop below freezing for extended periods.
    •   Fog and drizzle are common.

Spring (March-May)

    •   Average temperature: 54.4°F (12.4°C)
    •   Temperatures rise rapidly, with warm days and cool nights.
    •   Increasing humidity levels.
    •   Spring showers and thunderstorms are common.

Precipitation

    •   Rainfall is distributed fairly evenly throughout the year.
    •   Heaviest rainfall occurs in the spring and early summer.
    •   Snowfall is infrequent, averaging less than 5 inches (12.7 cm) annually.

Extreme Weather

    •   Tornadoes and severe thunderstorms can occur, especially in the spring and summer.
    •   Heat waves and droughts can also occur during the summer.
    •   Ice storms and winter storms are rare but can cause power outages and hazardous driving conditions.

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

    •   Harrison is home to the Harrison Bay State Natural Area, a 1,200-acre preserve featuring a diverse ecosystem with wetlands, forests, and grasslands.

    •   The area is a haven for birdwatchers, with over 200 species observed.

    •   The Tennessee River forms the western boundary of Harrison, providing habitat for fish, turtles, and other aquatic life.

Science

    •   The University of Tennessee's Institute of Agriculture has a research farm in Harrison, focusing on agricultural sustainability and crop production.

    •   The Tennessee Aquarium Conservation Institute operates a hatchery in Harrison, raising endangered freshwater mussels.

Personalities

  • John Ross:

    Chief of the Cherokee Nation, born in Harrison in 1790.

  • William Blount:

    First governor of Tennessee, owned a plantation in Harrison.

  • David Crockett:

    Frontiersman and congressman, lived in Harrison for a time.

  • Tourist Attractions
    1.Lookout Mountain

    - A scenic mountain with breathtaking views of the Tennessee Valley, offering hiking trails, a historic incline railway, and the iconic Point Park, featuring the iconic Lookout Mountain Tower.

    2.Ruby Falls

    - An underground waterfall located within Lookout Mountain, accessible through a guided tour that showcases the natural beauty of the cave formations and the cascading waterfall.

    3.Tennessee Aquarium

    - Located in nearby Chattanooga, this world-renowned aquarium features a diverse collection of aquatic life from around the world, including sharks, penguins, and jellyfish, offering an immersive and educational experience.

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