National Weather Service United States Department of Commerce

Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

National Weather Service Hanford, CA
Meteorological Calculator
Thanks to Ron Murphy, NWS Birmingham, AL for writing the JavaScript.

Temperature Conversion

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Wind Speed Calculations

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 mph    knots       m/sec      km/hr  

Wind Chill Calculation

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Wind
(mph)

Index 

Relative Humidity Calculation

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Dew
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Heat Index Calculations

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RH

HI 

Tdp

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Temp (F)

Tdp

HI  RH 

Station Pressure Calculation

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