Our Proprietary 10-Day Forecast

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Current warnings over Shasta Lake, California
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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 Shasta Lake, California 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 Shasta Lake, California 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 Shasta County, CA

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 Shasta Lake, California

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 Shasta Lake, CA 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 Shasta Lake, CA

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 Shasta Lake, CA, 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 Shasta Lake, California

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 Shasta County, California

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)
# Shasta Lake, California Climate Summary

## Overview

Shasta Lake, California has a Mediterranean climate, characterized by hot, dry summers and mild, wet winters. The average annual temperature is 58.2°F (14.6°C), with average highs in the summer reaching 90°F (32°C) and average lows in the winter dropping to 35°F (2°C). Precipitation is concentrated in the winter months, with an average annual rainfall of 25.6 inches (650 mm).

## Temperature

The hottest month in Shasta Lake is July, with an average high of 92°F (33°C) and an average low of 58°F (14°C). The coldest month is January, with an average high of 47°F (8°C) and an average low of 32°F (0°C).

## Precipitation

The wettest month in Shasta Lake is January, with an average rainfall of 4.5 inches (114 mm). The driest month is July, with an average rainfall of 0.1 inches (3 mm).

## Snowfall

Shasta Lake receives an average of 11 inches (28 cm) of snow per year. Snowfall is most common in the months of December, January, and February.

## Sunshine

Shasta Lake receives an average of 260 sunny days per year. The sunniest month is July, with an average of 11 hours of sunshine per day. The cloudiest month is December, with an average of 5 hours of sunshine per day.

## Humidity

The average relative humidity in Shasta Lake is 65%. The most humid month is January, with an average relative humidity of 75%. The least humid month is August, with an average relative humidity of 55%.

## Wind

The average wind speed in Shasta Lake is 7 mph (11 km/h). The windiest month is March, with an average wind speed of 9 mph (14 km/h). The calmest month is September, with an average wind speed of 6 mph (10 km/h).

## Climate Change

The climate of Shasta Lake is changing, as it is in many parts of the world. The average annual temperature has increased by 1.5°F (0.8°C) since the late 19th century, and the average annual precipitation has decreased by 5 inches (130 mm). These changes are expected to continue in the future, with the average annual temperature projected to increase by an additional 2-4°F (1-2°C) by the end of the century.

## Conclusion

Shasta Lake, California has a Mediterranean climate, with hot, dry summers and mild, wet winters. The average annual temperature is 58.2°F (14.6°C), with average highs in the summer reaching 90°F (32°C) and average lows in the winter dropping to 35°F (2°C). Precipitation is concentrated in the winter months, with an average annual rainfall of 25.6 inches (650 mm). The climate of Shasta Lake is changing, with the average annual temperature increasing and the average annual precipitation decreasing.

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

    •   Shasta Lake is the largest reservoir in California, created by the Shasta Dam on the Sacramento River.

    •   The lake is home to a diverse range of fish species, including Chinook salmon, rainbow trout, and brown trout.

    •   The surrounding area is known for its volcanic activity, including Mount Shasta, one of the largest active volcanoes in the Cascade Range.

Historical Information and Personalities

    •   The lake was named after Mount Shasta, which was named after the Shasta tribe of Native Americans.

    •   The Shasta Dam was built by the United States Bureau of Reclamation during the Great Depression, providing flood control, irrigation, and hydroelectric power.

    •   The dam was dedicated in 1945 by President Franklin D. Roosevelt, who called it \

Tourist Attractions
1.Shasta Dam:

The second-largest concrete dam in the United States, Shasta Dam is a marvel of engineering and offers stunning views of Shasta Lake and the surrounding mountains. Visitors can take a guided tour of the dam and learn about its history and construction.

2.McCloud Falls:

Located in the McCloud River Valley, McCloud Falls is a series of three waterfalls that cascade down a steep canyon. Visitors can hike to the base of the falls or take a scenic drive along the McCloud River.

3.Mount Shasta:

A dormant volcano with an elevation of 14,162 feet, Mount Shasta is a popular destination for hikers, climbers, and skiers. Visitors can hike to the summit of the mountain or take a scenic drive up Mount Shasta Vista Trail.

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