Our Proprietary 10-Day Forecast

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Current warnings over Grantsville, Utah
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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 Grantsville, Utah 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 Grantsville, Utah 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 Tooele County, UT

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 Grantsville, Utah

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 Grantsville, UT 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 Grantsville, UT

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 Grantsville, UT, 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 Grantsville, Utah

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 Tooele County, Utah

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)
Grantsville, Utah Climate Summary

Grantsville, Utah has a semi-arid climate, with hot, dry summers and cold, snowy winters. The average annual temperature is 48.6°F (9.2°C), with an average high of 63.2°F (17.3°C) and an average low of 34.0°F (1.1°C).

Summer

The summer months in Grantsville are hot and dry, with average temperatures in the mid-80s Fahrenheit (29-30°C). The hottest month is July, with an average high of 93°F (34°C) and an average low of 62°F (17°C). Precipitation is rare during the summer months, with an average of only 0.5 inches (1.3 cm) of rain per month.

Winter

The winter months in Grantsville are cold and snowy, with average temperatures in the mid-20s Fahrenheit (-3 to -4°C). The coldest month is January, with an average high of 38°F (3°C) and an average low of 19°F (-7°C). Snowfall is common during the winter months, with an average of 12 inches (30 cm) of snow per month.

Spring and Fall

The spring and fall months in Grantsville are mild, with average temperatures in the mid-50s Fahrenheit (13-14°C). Precipitation is more common during these months, with an average of 1-2 inches (2.5-5 cm) of rain per month.

Climate Change

The climate in Grantsville is changing, as it is in many parts of the world. The average annual temperature has increased by about 2°F (1°C) since the late 19th century, and the number of days with extreme heat has also increased. Precipitation patterns are also changing, with more rain falling in the winter and spring months and less rain falling in the summer months. These changes are expected to continue in the future, and they are likely to have a significant impact on the environment and the people of Grantsville.

Overall

The climate in Grantsville is semi-arid, with hot, dry summers and cold, snowy winters. The average annual temperature is 48.6°F (9.2°C), with an average high of 63.2°F (17.3°C) and an average low of 34.0°F (1.1°C). Climate change is causing the average annual temperature to increase and precipitation patterns to change, which is likely to have a significant impact on the environment and the people of Grantsville.

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

    •   Grantsville is located in the Great Salt Lake Desert, a vast and arid region known for its unique ecosystem.

    •   The area is home to a variety of desert plants and animals, including sagebrush, saltgrass, and pronghorn antelope.

    •   The Great Salt Lake Desert is also a popular destination for birdwatching, with over 200 species of birds recorded in the area.

Science

    •   Grantsville is home to the Dugway Proving Ground, a U.S. Army testing and training facility.

    •   The facility has been used for a variety of scientific experiments, including the development of chemical and biological weapons.

    •   Dugway Proving Ground is also home to a large population of wild horses, which are used for research purposes.

Personalities

    •   Thomas L. Kane, a Mormon pioneer and explorer, played a key role in the settlement of Grantsville.

    •   In 1855, Kane led a group of Mormon settlers to the area, which was then known as \

Tourist Attractions
1.Bonneville Salt Flats:

Located about 20 miles west of Grantsville, the Bonneville Salt Flats is a vast, white expanse of salt that is known for its record-breaking land speed races. Visitors can drive on the salt flats, explore the nearby museum, or simply take in the surreal beauty of this unique landscape.

2.Great Salt Lake Shorelands Preserve:

This 12,000-acre preserve is located along the eastern shore of the Great Salt Lake, just a few miles east of Grantsville. The preserve is home to a variety of wildlife, including birds, waterfowl, and mammals. Visitors can enjoy hiking, biking, fishing, and birdwatching in the preserve.

3.Tooele Army Depot Museum:

This museum is located on the grounds of the Tooele Army Depot, about 10 miles south of Grantsville. The museum tells the story of the depot's history, from its beginnings as a World War II training facility to its current role as a major storage and distribution center for the U.S. military. Visitors can view exhibits on the depot's history, as well as a collection of military vehicles and equipment.

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