National Weather Service United States Department of Commerce

Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

 

National Weather Service Lubbock
Meteorological Calculators

 
[Thanks to Ron Murphy, NWS Binghamton, NY for writing the JavaScript]

Additional Wind Chill information can be found here.
Heat Index can also be determined using this handy chart.

 

Temperature Conversion
Enter a number then click on the appropriate button to see the result.
Fahrenheit
(o F)
Celsius
(o C)


 

 
 
 
Windchill Calculation
Enter in the air temperature (Tair) in degrees Fahrenheit and wind speed in mph, then click on the Calculate WC to compute the windchill (WC).
Tair mph
More information about the wind chill.


 
Relative Humidity Calculation
Enter in the air temperature (Tair) and dew point temperature (Tdp) in degrees Fahrenheit (oF) then click on the Calculate RH to compute the relative humidity (RH).
Tair Tdp


 
 
Heat Index Calculation
Enter in the air temperature (Tair) in degrees Fahrenheit and relative humidity (RH) in percent (without the % sign), then click on the Calculate HI to compute the heat index (HI).
Tair RH Tdp=
OR
Tair Tdp RH=
More information about the Heat Index.

 

 

 
Wind Speed Conversion
Input value here and then select units below ANSWERS:
mph mph
knots knots
m/s m/s
ft/s ft/s
km/h km/h

 

Station Pressure on next page -- >