Current Radar or Satellite Image

Flhurricane.com - Central Florida Hurricane Center - Tracking Storms since 1995Hurricanes Without the Hype! Since 1995


The Atlantic is quiet
Days since last H. Landfall - US: Any 46 (Milton) , Major: 46 (Milton) Florida - Any: 46 (Milton) Major: 46 (Milton)
 


General Discussion >> Hurricane Ask/Tell

Clark
Meteorologist


Reged:
Posts: 1710
Re: Spring Tornadic Activity
      Sun Apr 03 2005 12:44 AM

Severe weather season has been a bit subdued until recently, but across the nation, we were near-average for February and March and well-above average for January, this likely due to a lot of tornadoes in California. Over the past few weeks, we've seen activity increase over the south-central U.S., but the east coast itself isn't as favorable for tornado formation climatologically (nor has it been this year).

Simply put, tornado formation is favored in regions of strong vertical shear...especially in the lowest part of the atmosphere. This is created where you have winds at different directions between these levels of the atmosphere and enhanced by having slower winds nearer the surface and stronger winds further aloft. This pattern tends to happen when you have an upper-level low passing nearby but to the north and west, resulting in strong, nearly west winds aloft and southerly winds near the surface. Most of the storms this year -- and climatologically as well -- tend to move either along the coast, keeping the threat near to the coastline, or a good distance to the west of the Appalachians, keeping the threat further west. This is an oversimplification of the problem - you need favorable thermodynamical factors (such as heating) as well - but helps to highlight one of the main reasons for such a pattern.

Things will continue to become more favorable as we head further intro Spring, but moreso over the south central US.

--------------------
Current Tropical Model Output Plots
(or view them on the main page for any active Atlantic storms!)

Post Extras Print Post   Remind Me!     Notify Moderator


Entire topic
Subject Posted by Posted on
* Eye replacement Keith234 Sun Apr 03 2005 12:44 AM
. * * Re: Eye replacement Clark   Fri Feb 18 2005 01:23 AM
. * * Spring Tornadic Activity B.C.Francis   Sat Apr 02 2005 01:34 PM
. * * Re: Spring Tornadic Activity Clark   Sun Apr 03 2005 12:44 AM
. * * Re: Spring Tornadic Activity B.C.Francis   Sun Apr 03 2005 03:04 PM
. * * Re: Spring Tornadic Activity Clark   Wed May 04 2005 11:56 PM
. * * Re: Spring Tornadic Activity B.C.Francis   Wed May 11 2005 02:02 PM
. * * Re: Spring Tornadic Activity Clark   Thu May 12 2005 04:27 PM
. * * Questions and Answers to Landfall Probability Numbers B.C.Francis   Tue May 03 2005 12:00 PM
. * * Re: Questions and Answers to Landfall Probability Numbers B.C.Francis   Tue May 03 2005 12:10 PM
. * * Re: Eye replacement Clark   Tue Aug 31 2004 09:28 PM
. * * Re: Eye replacement scott   Fri Oct 22 2004 09:47 PM
. * * Re: Eye replacement Keith234   Fri Oct 22 2004 09:51 PM
. * * Re: Eye replacement LI Phil   Tue Aug 31 2004 08:37 PM
. * * Re: Eye replacement Keith234   Tue Aug 31 2004 09:28 PM

Extra information
0 registered and 37 anonymous users are browsing this forum.

Moderator:  



Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 9480

Rate this thread

Jump to

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