Emergency Preparedness – Pressure Changes

   Nightly weathercasts always tell you what the barometric pressure is.  The standard pressure is 29.92 inches of mercury.  Higher surface readings mean sunny days, while lower readings mean denser air at higher atmospheric levels, usually causing cooling, condensation (clouds) and precipitation.  Pilots like to know this stuff because an altimeter is a barometer and must be reset continuously for altitude accuracy.
   Honolulu (motto: welcome to paradise) and San Diego have the least variation in barometric pressure – about 1 inch – and near constant weather year round.   Charleston, SC (motto: you’ll be blown away with our city) has the widest variation of 3.21 inches.  Just a few inches make a big difference in the weather.
   From 1900 to the present, the highest pressure recorded was 31.85” in Northway, Alaska.   Hurricane Hugo tore up South Carolina on 22 Sept. 1989, and still holds the continental US lowest pressure record at 27.58 inches.  It packed 135 MPH sustained surface winds and dumped record rainfall. 
   Home preparedness programs can be measured by pressure, too.  The more essentials you have in inventory, the less pressure you’ll feel on your stress barometer.  Reduce the pressure.  Get prepared.
   For more information contact (your emergency preparedness specialist).

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