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GIS Compatible Digital Forecast Information
GIS Compatible Digital Forecast Data Information & Help
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Domain with county warning area boundaries
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Domain with forecasted wind speed and wind direction
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General Information
The files found on this service can be overlayed on shapefiles for your area of interest (ie. forest district, county, etc...) This will provide you with greater flexibility to use National Weather Service forecast data specifically to fit your needs.
Zipped Files
Clicking on any of the links will allow you to download a zipped shapefile from our digital forecast database. Maximum Temperature, Minimum Temperature, and Relative Humidity are provided as a polygon shapefile. Wind data is provided as both wind speed and wind direction as point shapefiles.
WindowsXP comes standard with a Zip file reader, so all you need to do is double click on the file. If you are not running WindowsXP, you may need to download a Zip reader software, like pkzip first to unzip the shape files.
Forecast Times
These grids are made up of unique values at 5 km resolution, or roughly square boxes 3 miles by 3 miles large. Forecasts are available at up to 3-hourly resolution and out as far as 7 days.
Explanation of Weather Elements
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| Max Temperature | The daytime maximum temperature in degrees Fahrenheit out 7 days. |
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| Min Temperature | The overnight minimum temperature in degrees Fahrenheit out 7 days. |
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| Wind Speed | The expected sustained 10-meter sustained wind speed (in knots) for the beginning hour of the period. Displayed every three hours for the first 12 hours and then every 6 hours out 72 hours (3 days). |
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| Wind Direction | The expected sustained 10-meter wind direction from which the wind is blowing for the beginning hour of the period, using 36 points of a compass. Displayed every three hours for the first 12 hours and then every 6 hours out 72 hours (3 days). |
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| Relative Humidity | The ratio, expressed as a percent, of the amount of atmospheric moisture present relative to the amount that would be present if the air were saturated. Since the latter amount is dependent on temperature, relative humidity is a function of both moisture content and temperature. Displayed every three hours for the first 12 hours and then every 6 hours out 72 hours (3 days). |
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| QPF | QPF stands for the Quantitative Precipitation Forecast. This forecast is for the total amount of precipitation expected for every 6 hour window. In the event of snow, this value represents the liquid water equivalent. Displayed in six hour periods out 60 hours. |
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US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Los Angeles/Oxnard Weather Forecast Office
520 North Elevar Street
Oxnard, CA 93030
Tel: (805) 988-6610
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National Weather Service Mission: "The
National Weather Service (NWS) provides weather,
hydrologic, and climate forecasts and warnings for
the United States, its territories, adjacent waters
and ocean areas, for the protection of life and
property and the enhancement of the national economy.
NWS data and products form a national information
database and infrastructure which can be used by
other governmental agencies, the private sector,
the public, and the global community." |
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