National Weather Service United States Department of Commerce

All Eyes on Hurricane Ian

All eyes are on Ian, which became a hurricane early this morning in the western Caribbean Sea and may become a major hurricane tonight near western Cuba. Regardless in Ian's track and intensity over the next several days, life-threatening storm surge, hurricane-force winds, heavy rain, flooding and tornadoes are just some of the impacts the Sunshine state will see this week. Read More >

Unseasonably warm temperatures will continue until at least Tuesday September 27, 2022, with highs reaching around 8 to 11 degrees above seasonal averages.

 

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

Temperature Conversion

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Fahrenheit
(F)

Celsius
(C)

Wind Speed Calculations

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 mph    knots       m/sec      km/hr  

Wind Chill Calculation

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(F)

Wind
(mph)

Index 

Relative Humidity Calculation

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Temp
(F)

Dew
Point

Heat Index Calculations

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 (F)

RH

HI 

Tdp

OR

Temp (F)

Tdp

HI  RH 

Station Pressure Calculation

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What is the station elevation? (feet)
i.e. Fresno Air Terminal = 333
The Station Pressure in inches is:
The Station Pressure in millibars is:
The Pressure Altitude in feet is: