Weather Web Site of Jon Davies   (view at 1024 x 768 pixels or larger)  Photos (c) Jon Davies

=====================================================================================================================
As a meteorologist and weather hobbyist, this web site is entirely my own for sharing weather-related photos, case studies, and papers / research / ideas about
severe weather forecasting.  Selections are listed below:
NOTE:  I've moved to Missouri!   I now live near Trimble, Missouri, N of Kansas City, as of Fall 2007!

***NEW or Recent***
===>Jon's new book for kids, "Storm Chasers! On the Trail of Twister!" is now available!  (New 6/10/07)

===>Case study:  The Greensburg Tornado Environment on 4 May 2007  (New 5/12/07)

===>New paper in Weather & Forecasting: "Tornadoes with Cold Core 500-mb Lows"  (New 2/14/07)
===>Case study: Non-mesocyclone tornadoes with cold core 500 mb low in southwest Kansas on 10/26/06! (New 10/28/06)

FROM 2005:
===>Case study: Unusual late-year tornadoes in Kansas on 11/27/05 (cold core 500 mb low)  (New 12/4/05)
===>Nature's Fireworks on July 4th Weekend in South-Central Kansas  (7/4/05)
===>CNN.com special web page on Tornadoes  I'm featured in the Gallery on Storm Chasers currently at this link (6/2/05)
===>List of Publications   A list of my informal and peer-reviewed print publications over the years (5/30/05)
===>Tornadoes in Non-mesocyclone Environments Paper with Jim Caruso (NWS WIchita) NWA Journal of Operational Meteorology 1 June 2005 (6/1/05)
===>Photos of Central Kansas Storms on 5/18/05 and 5/21/05  (5/22/05)
===>Low-topped Tornadic Supercells in NW Kansas on 4/10/05:  Photos and Case Study  (4/17/05)
===>Brief Case Studies of Non-mesocycloneTornadoes in Small SRH and/or High LCL Environments  Informal case study page  (Updated 5/23/05)
===>On Useful Ingredients and "Patterns" in Tornado Forecasting - a Brief Overview (Updated 5/25/05)

===========================================================================================================

*Jon's 2004 Storm Chases and Photos:

     

* About Me
* Publications (a list of my informal and peer-reviewed print publications over the years)
* Photo Gallery (a few of my images of tornadoes from older storm chases)

Papers/Briefs Online:
*===>Tornadoes Associated wth Small SRH or High LCL Environments  (non-mesocyclone tornadoes) for 4th Southeast Severe Storms Symposium Mar. 2005
*===>Estimations of CIN and LFC associated with Tornadic and Nontornadic Supercells   (published in Weather & Forecasting Aug. 2004)
*On Useful Ingredients and "Patterns" in Tornado Forecasting - a Brief Overview
*Using 700 mb temperatures as an estimation of the "cap"
*On low-level thermodynamic parameters associated with tornado and nontornadic supercells  (Aug. 2002 AMS Severe Storms Conf., PDF format)
*Signficant tornadoes in environments with relatively weak shear (Aug. 2002 AMS Severe Storms Conf., PDF format)
*Mesoscale factors in the D.C. area tornado event of 24 September 2001 (w/ John Hart at SPC) ; (Aug. 2002 AMS Severe Storms Conf., PDF format)
*Supercell and Tornado Parameters from a Large Dataset of Simple Forecast Soundings

Material about tornadic storms with 500mb cold core lows ("cold core tornadoes")  -- one of my favorite areas of study:
*===>Midget Supercell Spawns Tornadoes  (New 5/30/05:   photos and short article published in Weatherwise magazine, October 1990)
*===>Small Tornadic Supercells in the Central Plains  (New 5/30/05: classic paper with photos, from 17th AMS Severe Storms Conf., October 1993)
*===>A Preliminary Climatology of Tornado Events with Closed Cold Core 500mb Lows  (w/ Jared Guyer, SPC, for 22nd SLS Conf. Oct.2004)
*===>Low-topped Tornadic Supercells in NW Kansas on 4/10/05:  Photos and Case Study  (New 04/17/05)

Case Studies: 
*===>Case study: June 12, 2004 Mulvane KS tornadic supercell (forecast setting and environment)
*===>Tornadoes with deceptively small CAPE: the April 20, 2004 outbreak in Illinois and Indiana (case study)
*3/27/04 tornadic supercells in west central KS and northwest OK - brief case study
*2002 case studies combining EHI / deep shear / LCL / CIN / LFC to evaluate tornado potential (supercells in varying environments)
*Siren WI tornadic supercell environment 6/18/01
*4/21/01 Hoisington tornado damage path aerial photos and damage survey maps: Close Up View and Full Path View 
*My First Tornado: Pratt, KS, May 25, 1965

storm chases:
*1/5/05 ice storm in Wichita KS (photos)
*2004 storm chases and photos
*4/18/03 tornadic mini-supercell in Central Nebraska -  photos & discussiom
*6/9/03 tornadic supercells in north central Nebraska - photos 

contact info:  jdavies1@cox.net