Our Proprietary 10-Day Forecast

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Current warnings over Harvey, 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 Harvey, 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 Harvey, 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 Harvey, 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 Harvey, 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 Harvey, 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 Harvey, 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 Harvey, 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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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
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  • 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.
 
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Climate Summary
(made with AI, use with caution)
Harvey, Louisiana Climate Summary

Temperature

    •   Average annual temperature: 68.6°F (20.3°C)
    •   Average January temperature: 49.4°F (9.7°C)
    •   Average July temperature: 81.6°F (27.6°C)
    •   Record high temperature: 105°F (40.6°C)
    •   Record low temperature: 3°F (-16.1°C)

Precipitation

    •   Average annual precipitation: 59.72 inches (151.7 cm)
    •   Average number of rainy days per year: 108
    •   Record 24-hour rainfall: 17.38 inches (44.15 cm)
    •   Record monthly rainfall: 32.72 inches (83.1 cm)

Snowfall

    •   Average annual snowfall: 0.1 inches (0.25 cm)
    •   Record snowfall in a single storm: 3.0 inches (7.6 cm)

Humidity

    •   Average annual relative humidity: 77%
    •   Average daily maximum relative humidity: 90%
    •   Average daily minimum relative humidity: 65%

Wind

    •   Average annual wind speed: 6.9 mph (11.1 km/h)
    •   Average daily maximum wind speed: 10.3 mph (16.6 km/h)
    •   Average daily minimum wind speed: 3.5 mph (5.6 km/h)
    •   Record wind gust: 75 mph (121 km/h)

Sunshine

    •   Average annual sunshine: 2,520 hours
    •   Average daily sunshine: 6.9 hours
    •   Percentage of possible sunshine: 60%

Climate Classification

    •   Humid subtropical climate (Köppen climate classification: Cfa)

Tornado Activity

    •   Harvey is located in an area with a moderate risk of tornadoes. The area experiences an average of 1 tornado per year.

Hurricanes

    •   Harvey is located in an area with a high risk of hurricanes. The area experiences an average of 1 hurricane every 3 years.

Climate Change

    •   The climate in Harvey is changing. The average annual temperature has increased by 1.5°F (0.8°C) since 1895. The average annual precipitation has increased by 4.5 inches (11.4 cm) since 1895. The sea level has risen by 8 inches (20 cm) since 1880.

Sources

    •   National Climatic Data Center
    •   National Hurricane Center
    •   Intergovernmental Panel on Climate Change

Facts & Historical Information
(made with AI, use with caution)
Harvey, Louisiana, holds a rich natural history and scientific significance:

  • Wetland Ecosystem:

    Harvey lies within the Mississippi River Delta, a vast wetland ecosystem teeming with diverse plant and animal life. The area supports numerous endangered species, including the Louisiana black bear and the American alligator.

  • Oil and Gas Industry:

    Harvey played a pivotal role in the development of Louisiana's oil and gas industry. In the 1930s, the discovery of the Barataria Field transformed the town into a major hub for drilling and production.

  • Hurricane Katrina:

    Harvey was severely impacted by Hurricane Katrina in 2005. The storm surge devastated the town, causing widespread flooding and damage. The aftermath highlighted the vulnerability of coastal communities to natural disasters.

  • Dr. Ernest N. Morial:

    Born in Harvey in 1929, Dr. Ernest N. Morial became the first African American mayor of New Orleans. He served from 1978 to 1986 and made significant contributions to the city's recovery from Hurricane Betsy.

    • Tourist Attractions
    1.Jean Lafitte National Historical Park and Preserve

    (about 15 miles from Harvey): This park encompasses over 200,000 acres of wetlands, forests, and prairies. Visitors can explore the park's many hiking trails, kayak through its waterways, or visit the Barataria Preserve Visitor Center to learn about the park's history and ecology.

    2.New Orleans

    (about 10 miles from Harvey): New Orleans is a vibrant city with a rich history and culture. Visitors can explore the city's many museums, art galleries, and historical sites, or enjoy its lively music scene and delicious cuisine.

    3.Audubon Zoo

    (about 10 miles from Harvey): This zoo is home to over 2,000 animals from around the world. Visitors can see animals such as lions, tigers, elephants, and gorillas, as well as a variety of reptiles, amphibians, and birds.

    Nearby Cities:

    Gretna, LA
    Marrero, LATerrytown, LA
    Timberlane, LAWoodmere, LA
    New Orleans, LAEstelle, LA
    Westwego, LAArabi, LA
    Belle Chasse, LABridge City, LA
    Jefferson, LAChalmette, LA
    Metairie, LAMetairie Terrace, LA
    Avondale, LAElmwood, LA
    Acadiana, LA
    Baton Rouge, LALafayette, LA
    Gulfport, MSWest Gulfport, MS
    Hattiesburg, MSBiloxi, MS
    Houma, LANew Iberia, LA
    Laplace, LACentral, LA
    Slidell, LA