A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >
Washington CWSU
Center Weather Service Unit
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Temperature Conversion |
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| Enter a number then click on the the conversion button. | ||||
| Fahrenheit (o F) |
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| Celsius (o C) |
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Wind Speed Calculations |
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| Enter a speed into any blank to convert to all other wind speeds. | ||||||
| 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. | ||||||
| Temp (o F) |
Wind (mph) |
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. | ||||||
| Temp (o F) |
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). | |||||||
| Temp (o F) |
RH | HI |
Tdp |
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OR |
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| Temp (o F) |
Tdp | HI | RH | ||||
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Washington CWSU
Washington ARTCC Center Weather Service Unit
825 East Market Street
Leesburg, VA 20176-4496
703-771-3480
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