Our Proprietary 10-Day Forecast

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Current warnings over Southmayd, Texas
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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 Southmayd, Texas 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 Southmayd, Texas 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 Grayson County, TX

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 Southmayd, Texas

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 Southmayd, TX 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 Southmayd, TX

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 Southmayd, TX, 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 Southmayd, Texas

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 Grayson County, Texas

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)
Southmayd, Texas Climate Summary

Temperature

    •   Average annual temperature: 68.6°F (20.3°C)
    •   Average summer temperature (June-August): 83.4°F (28.6°C)
    •   Average winter temperature (December-February): 47.8°F (8.8°C)
    •   Highest recorded temperature: 113°F (45°C) on August 28, 2011
    •   Lowest recorded temperature: -2°F (-19°C) on February 3, 1933

Precipitation

    •   Average annual precipitation: 34.5 inches (876 mm)
    •   Average number of rainy days per year: 80
    •   Wettest month: May (5.2 inches or 132 mm)
    •   Driest month: October (2.1 inches or 53 mm)

Snowfall

    •   Average annual snowfall: 1.2 inches (3 cm)
    •   Snowiest month: January (0.6 inches or 1.5 cm)

Other

    •   Average annual relative humidity: 70%
    •   Average annual wind speed: 10 mph (16 km/h)
    •   Prevailing wind direction: South-southeast

Climate Classification

    •   Köppen climate classification: Cfa (humid subtropical climate)

Summary

Southmayd, Texas has a humid subtropical climate with hot, humid summers and mild, dry winters. The average annual temperature is 68.6°F (20.3°C), and the average annual precipitation is 34.5 inches (876 mm). The wettest month is May, and the driest month is October. Snowfall is rare, averaging only 1.2 inches (3 cm) per year.

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

    •   Southmayd sits on the Blackland Prairie, a fertile agricultural region known for its rich soil and diverse plant life.

    •   The area is home to several endangered species, including the golden-cheeked warbler and the black-capped vireo.

    •   The nearby Trinity River supports a variety of aquatic life, including fish, turtles, and alligators.

Science

    •   Southmayd is home to the Southmayd Observatory, a private astronomical observatory owned by amateur astronomer David Levy.

    •   Levy has discovered over 20 comets, including Comet Shoemaker-Levy 9, which famously collided with Jupiter in 1994.

    •   The observatory has also been used to study asteroids, planets, and other celestial objects.

Personalities

  • David Levy:

    Amateur astronomer and comet discoverer who founded the Southmayd Observatory.

  • Dr. John C. Phillips:

    Physician and naturalist who established the Southmayd Nature Center in 1972.

  • Dr. James M. Allison:

    Immunologist and Nobel Prize winner who grew up in Southmayd.

    • Tourist Attractions
    1.Southmayd State Historic Site

    - This 180-acre site commemorates the Battle of Southmayd, which was fought during the Civil War. The site includes a museum, a reconstructed fort, and a walking trail.

    2.Lake Lavon

    - This 12,000-acre lake is a popular spot for fishing, boating, and swimming. The lake is also home to several parks and campgrounds.

    3.Erwin Park

    - This 100-acre park is located on the shores of Lake Lavon. The park includes a playground, a picnic area, and a boat ramp.

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