Our Proprietary 10-Day Forecast

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Current warnings over Santa Susana, 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 Santa Susana, 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 Santa Susana, 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 Ventura 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 Santa Susana, 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 Santa Susana, 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 Santa Susana, 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 Santa Susana, 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 Santa Susana, 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 Ventura 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.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • American NBM - National Blend of Models
  • 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.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Climate Summary for Santa Susana, CA

General Climate

    •   Santa Susana, California experiences a Mediterranean climate, characterized by warm, dry summers and mild, wet winters.
    •   The city is located in a valley, which helps to protect it from the cold winds that blow through the region during the winter months.
    •   Santa Susana also receives a significant amount of sunshine throughout the year, with an average of over 280 sunny days per year.

Temperature

    •   The average annual temperature in Santa Susana is 62.6°F (17°C).
    •   The warmest month is August, with an average temperature of 77.4°F (25.2°C).
    •   The coldest month is January, with an average temperature of 46.2°F (7.9°C).
    •   Temperatures can reach into the 90s (°F) during the summer months and drop into the 30s (°F) during the winter months.

Precipitation

    •   Santa Susana receives an average of 18.6 inches (47.2 cm) of precipitation per year.
    •   The majority of this precipitation falls during the winter months, with December being the wettest month, averaging 3.5 inches (8.9 cm) of rain.
    •   The driest month is July, with an average of only 0.1 inches (0.25 cm) of rain.

Humidity

    •   The average annual relative humidity in Santa Susana is 66%.
    •   Humidity levels are highest during the winter months, when they can reach up to 80%.
    •   Humidity levels are lowest during the summer months, when they can drop to as low as 30%.

Wind

    •   The average annual wind speed in Santa Susana is 5.6 mph (9 km/h).
    •   The windiest month is April, with an average wind speed of 6.3 mph (10.1 km/h).
    •   The calmest month is August, with an average wind speed of 4.8 mph (7.7 km/h).

Sunshine

    •   Santa Susana receives an average of 282 sunny days per year.
    •   The sunniest month is July, with an average of 31 days of sunshine.
    •   The cloudiest month is December, with an average of only 18 days of sunshine.

Overall, Santa Susana, California enjoys a mild, sunny climate with warm, dry summers and mild, wet winters.

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

    •   Santa Susana Pass is a natural mountain pass through the Santa Susana Mountains, connecting the San Fernando Valley to the Simi Valley.

    •   The area is home to a diverse ecosystem, including coastal sage scrub, oak woodlands, and riparian habitats.

    •   The Santa Susana Mountains are known for their unique geology, including the presence of the Santa Susana Fault.

Science

    •   The Santa Susana Field Laboratory (SSFL) was a major nuclear and aerospace research facility from the 1950s to the 1980s.

    •   SSFL was the site of numerous rocket engine tests and nuclear reactor experiments.

    •   The legacy of SSFL's operations has been the subject of ongoing environmental and health concerns.

Personalities

    •   Thomas Aquinas, a Spanish priest and philosopher, is said to have visited Santa Susana in 1602.

    •   Father Junipero Serra, a Franciscan missionary, established Mission San Fernando Rey de España in 1797, which was located near Santa Susana Pass.

    •   William Mulholland, the chief engineer of the Los Angeles Aqueduct, played a key role in developing the Santa Susana area for water storage and transportation.

Tourist Attractions
1.Rocketdyne Propulsion and Power Test Facility

- This historic site was once home to the development of some of the most powerful rocket engines in the world. Today, it's a museum that offers tours of the facility and its exhibits.

2.Santa Susana Pass State Historic Park

- This park is home to a number of hiking trails, picnic areas, and historical sites. It's a great place to spend a day outdoors and learn about the history of the area.

3.Six Flags Magic Mountain

- This world-famous theme park is located just a short drive from Santa Susana. It's home to some of the most thrilling roller coasters and other rides in the world.

Nearby Cities:

Simi Valley, CA
Chatsworth, CAWest Hills, CA
Oak Park, CACanoga Park, CA
Hidden Hills, CACalabasas, CA
Woodland Hills, CAAgoura, CA
Northridge, CAAgoura Hills, CA
Thousand Oaks, CAMoorpark, CA
Westlake Village, CAStevenson Ranch, CA
Piru, CASanta Clarita, CA
Los Angeles, CA
Long Beach, CABakersfield, CA
Anaheim, CASanta Ana, CA
Riverside, CAIrvine, CA
San Bernardino, CAFontana, CA
Oxnard, CAMoreno Valley, CA
Huntington Beach, CA