A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >
National Weather Service Hanford, CA
Meteorological Calculator
Thanks to Ron Murphy, NWS Birmingham, AL for writing the JavaScript.
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Temperature Conversion |
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Wind Speed Calculations |
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mph knots m/sec km/hr |
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Wind Chill Calculation |
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| Enter the temperature in degrees Fahrenheit and wind speed in mph, then click on the Calculate WC to compute the windchill index. | ||||||
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Index |
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Relative Humidity Calculation |
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| Enter the air temperature and the dew point in degrees Fahrenheit, then click on the Calculate RH to compute the relative humidity. | ||||||
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Dew Point |
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Heat Index Calculations |
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| Enter the temperature in degrees Fahrenheit and relative humidity (RH) in percent (without the % sign), or the Dew Point (Tdp). Then click on the Calculate HI to compute the heat index (HI). | ||||||||
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Tdp |
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| Temp (o F) | Tdp | HI | RH | |||||
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