Our Proprietary 10-Day Forecast

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Current warnings over Signal Hill, 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 Signal Hill, 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 Signal Hill, 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 Los Angeles 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 Signal Hill, 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 Signal Hill, 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 Signal Hill, 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 Signal Hill, 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 Signal Hill, 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 Los Angeles 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)
# Signal Hill, California Climate Summary

Signal Hill, California is located in Los Angeles County, approximately 20 miles south of downtown Los Angeles. The city has a Mediterranean climate, with mild, wet winters and warm, dry summers.

## Temperature

The average annual temperature in Signal Hill is 64.5°F (18.1°C). The warmest month is August, with an average temperature of 77.2°F (25.1°C). The coldest month is January, with an average temperature of 51.9°F (11.1°C).

## Precipitation

Signal Hill receives an average of 14.92 inches of precipitation per year. The majority of this precipitation falls during the winter months, from November to March. The driest month is July, with an average precipitation of 0.06 inches.

## Humidity

The average annual relative humidity in Signal Hill is 66%. The most humid month is January, with an average relative humidity of 73%. The least humid month is August, with an average relative humidity of 59%.

## Wind

The average annual wind speed in Signal Hill is 6.9 mph (11.1 km/h). The windiest month is June, with an average wind speed of 8.1 mph (13.0 km/h). The least windy month is December, with an average wind speed of 5.8 mph (9.3 km/h).

## Sunshine

Signal Hill receives an average of 283 sunny days per year. The sunniest month is July, with an average of 31 sunny days. The least sunny month is December, with an average of 21 sunny days.

## Climate Extremes

The highest temperature ever recorded in Signal Hill was 115°F (46.1°C) on September 26, 1963. The lowest temperature ever recorded in Signal Hill was 25°F (-3.9°C) on January 21, 1949.

## Climate Change

The climate in Signal Hill is changing, as it is in the rest of the world. The average annual temperature in Signal Hill has increased by about 2°F (1.1°C) since the late 19th century. The number of days with extreme heat has also increased.

Climate change is also causing the sea level to rise, which is threatening coastal communities like Signal Hill. The sea level has risen by about 8 inches (20 cm) in the past century, and it is projected to rise by another 1-4 feet (0.3-1.2 m) by the end of the century.

## Conclusion

The climate in Signal Hill is mild and pleasant, with warm, dry summers and mild, wet winters. However, the climate is changing, and the city is experiencing more extreme heat and rising sea levels. These changes are a threat to the city and its residents, and they need to be addressed.

Facts & Historical Information
(made with AI, use with caution)
Signal Hill, CA, is a prominent landmark in Long Beach known for its rich history and natural significance.

Natural History

    •   Signal Hill is a salt dome, formed by the upward movement of salt from deep underground.

    •   The hill is home to the Signal Hill Oil Field, one of the first major oil fields discovered in California.

    •   The surrounding area was once a vast wetland, home to diverse plant and animal life.

Science

    •   Signal Hill was used as a triangulation point for surveying the Los Angeles Basin in the 19th century.

    •   In 1921, the Dominguez Oil Field, located adjacent to Signal Hill, became the site of the world's first successful oil well drilled using directional drilling techniques.

    •   The hill's unique geology has made it a valuable site for scientific research on salt domes and petroleum exploration.

Personalities

    •   Henry Huntington, founder of the Huntington Library, Art Museum, and Botanical Gardens, owned a large estate on Signal Hill.

    •   The hill was a popular destination for hikers and sightseers in the early 20th century.

    •   In 1934, Signal Hill became the setting for the \

Tourist Attractions
1.Queen Mary

- The Queen Mary is a retired ocean liner that is now a hotel and museum in Long Beach, California. It is one of the most popular tourist attractions in the area, and visitors can explore the ship's decks, cabins, and engine room.

2.Aquarium of the Pacific

- The Aquarium of the Pacific is a public aquarium in Long Beach, California. It is home to over 11,000 animals from over 500 species, and visitors can learn about marine life from around the world.

3.Signal Hill Petroleum District

- The Signal Hill Petroleum District is a historic oil field in Signal Hill, California. It was one of the most productive oil fields in the United States in the early 20th century, and visitors can learn about the history of oil production in the area.

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