Mon Aug 18 2008 03:56 AM
Re: Preparations, Closings and Conditions in Your Area

Two reasons come to mind.
The typical day has a rise and fall in the morning and another in the evening. Somewhat like the tide rises and falls.

The other reason is the Storm and the front just north of your area. They are ' fighting for space', tug of war.
Also known as barometric pumping the frequent rise and fall of the barometer prior to a storm passing.
You can see the same rise and fall during the winter with a strong cold front.

Note: This is NOT an official page. It is run by weather hobbyists and should not be used as a replacement for official sources. 
CFHC's main servers are currently located at Hostdime.com in Orlando, FL.
Image Server Network thanks to Mike Potts and Amazon Web Services. If you have static file hosting space that allows dns aliasing contact us to help out! Some Maps Provided by:
Great thanks to all who donated and everyone who uses the site as well. Site designed for 800x600+ resolution
When in doubt, take the word of the National Hurricane Center