Our Proprietary 10-Day Forecast

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Current warnings over Gretna, Louisiana
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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 Gretna, Louisiana 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 Gretna, Louisiana 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 Jefferson County, LA

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 Gretna, Louisiana

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 Gretna, LA 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 Gretna, LA

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 Gretna, LA, 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 Gretna, Louisiana

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 Jefferson County, Louisiana

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)
Climate Summary for Gretna, LA

General Climate


Gretna experiences a humid subtropical climate with long and hot summers and mild winters with occasional cool spells and frost occurrences during the colder months of the year (December to February). The city experiences ample rainfall throughout the year and is prone to severe weather events such as thunderstorms and hurricanes during the spring and summer months (April to September).

Temperature


    •   Average Annual Temperature


Approximately ( )

    •   Summer Temperatures


Average High in July

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Average Low in July

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    •   Winter Temperatures


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Precipitation


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    •   Wettest Month


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October with an average rainfall of ( )

Humidity


    •   Average Annual Humidity


Approximately (%)

    •   Highest Humidity


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    •   Lowest Humidity


February with an average humidity of (%)

Sunshine


    •   Average Annual Sunshine Hours


Approximately (hours per year).

    •   Sunniest Month


July with an average of (hours of sunshine).

    •   Cloudiest Month


December with an average of (hours of sunshine).

Severe Weather


    •   Thunderstorms


Common during spring and summer months (April to September).

    •   Hurricanes


Potential threat during hurricane season (June to November), with peak activity in August and September

Overall Climate


Gretna has a humid subtropical climate with hot and humid summers and mild winters with occasional cold spells and frost occurrences during the colder months of the year (December to February). The city experiences ample rainfall throughout the year and is prone to severe weather events such as thunderstorms and hurricanes during the spring and summer months (April to September).

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

    •   Gretna borders the Mississippi River, forming a natural levee that protects the city from flooding.

    •   The area was once a cypress swamp, providing habitat for abundant wildlife.

Science

    •   The University of New Orleans, located in nearby Kenner, has a research center in Gretna focused on environmental science.

    •   The Louisiana Universities Marine Consortium, also in Kenner, conducts research on coastal ecology and fisheries.

Personalities

  • Bernard de Marigny:

    A wealthy plantation owner and politician who founded Gretna in 1835.

  • Marie Laveau:

    A renowned voodoo priestess who lived in Gretna during the 19th century.

  • Louis Armstrong:

    The legendary jazz musician was born in New Orleans but lived in Gretna for a period of time.

    • Tourist Attractions
    1.Gretna Historical Society Museum

    - This museum tells the story of Gretna, Louisiana, from its founding in 1836 to the present day. The museum has a collection of artifacts, photographs, and documents that illustrate the city's history.

    2.The Gretna Ferry

    - The Gretna Ferry is a free ferry that crosses the Mississippi River between Gretna and Algiers. The ferry offers stunning views of the river and the New Orleans skyline.

    3.The Westwego Farmers Market

    - The Westwego Farmers Market is a weekly market that features fresh produce, seafood, and other local products. The market is a great place to find unique souvenirs and gifts.

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