Sept. 3 local weather

Good morning from the northwest end of Augusta, Maine where it is starting out as an overcast day.

This morning's readings are:

a relative humidity of 92% and a dew point of 58.2ºF.

It is 60.8ºF outside.

a mild and variable wind velocity only gusting up to 1.3 MPH out of the Southwest, but is generating crosswinds that are similarly mild.

And our Barometric pressure is 29.85 and falling.

Rain is forecast for today. A cold front is trying to move through our area today, so the rain is not expected to be extensive – more like scattered showers. The heavier rains are predicted for the Bangor area.

Tropical Storm Lee is making landfall down South in the New Orleans area. Watch Lee's load of rainfall as it moves north. A lot of areas up along Irene's old track simply don't need more rain. That includes us.

 

Some individuals asked again about the difference between Dew Point and Humidity. So, I went to Wikipedia for a good description:

Dew pointFrom Wikipedia, the free encyclopedia

The dew point is the temperature to which a given parcel of humid air must be cooled, at constant barometric pressure, for water vapor to condense into water. The condensed water is called dew. The dew point is a saturation temperature.

The dew point is associated with relative humidity. A high relative humidity indicates that the dew point is closer to the current air temperature. Relative humidity of 100% indicates the dew point is equal to the current temperature and the air is maximally saturated with water. When the dew point remains constant and temperature increases, relative humidity will decrease.

 

The dew point is an important statistic for general aviation pilots, as it is used to calculate the likelihood of carburetor icing and fog, and to estimate the height of the cloud base.

 

And, for those of you who like to do your own calculations try this online Dew Point calculator

http://www.dpcalc.org/

 

 

F. Ct. Admission: ME. N.H.