Sunday, May 20, 2012

Discussion for Severe Weather Outlook for the 20th of May

severe

Discussion for Severe Weather Outlook for the 20th of May 2012..http://www.hpc.ncep.noaa.gov/sfc/90fwbg.gif.. Current weather analysis as of 03 Z shows a cold front stretching north to south from the Canadian border to a low pressure system located over TX. This cold front is expected to move east and then stall across TX from about Wichita Falls to a Abilene TX line from NW to SE.. but will then cross the eastern parts of the severe zone ( TN/KY ) between 00z and 12 Z Sunday evening into Monday morning. Parameters for the region.. TEMPERATURES generally in the 80s ahead of the front...http://www.twisterdata.com/data/models/nam/221/maps/2012/05/20/00/NAM_221_2012052000_F24_TMPF_2_M_ABOVE_GROUND.png..DEWPOINTS 60-70 http://www.twisterdata.com/data/models/nam/221/maps/2012/05/20/00/NAM_221_2012052000_F24_DPTF_2_M_ABOVE_GROUND.png...CAPE 500 to about 3500 http://www.twisterdata.com/data/models/nam/221/maps/2012/05/20/00/NAM_221_2012052000_F24_CAPE_SURFACE.png ..LIFT INDEX to negative 8 http://www.twisterdata.com/data/models/nam/221/maps/2012/05/20/00/NAM_221_2012052000_F24_PLI_30_0_MB_ABOVE_GROUND.png.. EHI is essentially non existent..http://www.twisterdata.com/data/models/nam/221/maps/2012/05/20/00/NAM_221_2012052000_F24_EHI_1000_M.png ...HELICITY essentially non existent http://www.twisterdata.com/data/models/nam/221/maps/2012/05/20/00/NAM_221_2012052000_F24_HLCY_1000_M_ABOVE_GROUND_0_M_ABOVE_GROUND.png ..SHEAR 30 knots and upwards..http://www.twisterdata.com/data/models/nam/221/maps/2012/05/20/00/NAM_221_2012052000_F24_SHRM_500_MB.png ..All and all with no EHI and no Helicity present we put the tornado chances at less then 2 % anywhere... Main threats will be damaging winds and hail and heavy rain..

No comments:

Post a Comment