Terrific Saturday morning

It is another wonderful, sunny and dry morning here in Augusta Maine. We are expecting our temps reaching the low 60's. We will end up with a very seasonal day, with the winds picking up slightly as the day progresses.  

This morning's readings are:

a relative humidity of 92% with a Dew Point of 46.7ºF.

The temperature is 49.1ºF, with almost no wind chill at this time.

The wind velocity is presently between 1.1 mph and 0.0 mph out of the South Southwest, when it puffs. Winds are expected to increase as the day goes on, but any velocities are not known at this time.  

Our Barometric pressure is 29.87 and rising.

There was no rainfall in the past 24 hours, with none in today's forecast.   

As more radical weather begins to come in as a normal part of fall weather patterns, I am posting the definitions of two meteoroligic terms – Millibar and Isobar.

I hope this helps you know what your favorite weatherperson is talking about when he or she starts tossing those terms around during your local weather forecast.

 

Millibar:

n. Abbr. mb

A unit of atmospheric pressure equal to one thousandth (10-3) of a bar. Standard atmospheric pressure at sea level is about 1,013 millibars.

(The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved)

And:

(Mathematics & Measurements / Units) a cgs unit of atmospheric pressure equal to 10-3 bar, 100 newtons per square metre or 0.7500617 millimetre of mercury

(Collins English Dictionary – Complete and Unabridged © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003)

 

Isobar: N.

a line drawn on a weather map or chart that connects points at which the barometric pressure is the same.

(Random House Unabridged Dictionary)

And:

Isobar N.

(meteorology)an isogram connecting points having equal barometric pressure at a given time