Tuesday, May 15, 2012

Severe Weather Outlook May 16th 2012

severe

Severe Weather Outlook May 16th 2012
Temperatures in the 70s-80's
http://www.twisterdata.com/data/models/nam/221/maps/2012/05/16/00/NAM_221_2012051600_F24_TMPF_2_M_ABOVE_GROUND.png
DEW POINTS in the 60s
http://www.twisterdata.com/data/models/nam/221/maps/2012/05/16/00/NAM_221_2012051600_F24_DPTF_2_M_ABOVE_GROUND.png
CAPE 500-2500 Depending where you reside in the severe zone..
http://www.twisterdata.com/data/models/nam/221/maps/2012/05/16/00/NAM_221_2012051600_F24_CAPE_SURFACE.png
An interesting aspect to the severe zone is the area of Western CT and western MA...EHI is actually favorable for the potential of a tornado..
http://www.twisterdata.com/data/models/nam/221/maps/2012/05/16/00/NAM_221_2012051600_F24_EHI_1000_M.png
LIFT Index is to about - 5 depending where you are..
http://www.twisterdata.com/data/models/nam/221/maps/2012/05/16/00/NAM_221_2012051600_F24_PLI_30_0_MB_ABOVE_GROUND.png
HELICITY to about 200
http://www.twisterdata.com/data/models/nam/221/maps/2012/05/16/00/NAM_221_2012051600_F24_HLCY_1000_M_ABOVE_GROUND_0_M_ABOVE_GROUND.png
SHEAR is 35 knots +
http://www.twisterdata.com/data/models/nam/221/maps/2012/05/16/00/NAM_221_2012051600_F24_SHRM_500_MB.png
Trigger will be a cold front moving across the Northeast with a weaker front crossing the Southeast region.
Once the cold front moves off the coast the threat for severe will diminish. The main threats will be damaging winds with some hail possible ..However..keep in mind there could be an isolated tornado with the EHI being above 1 in the areas mentioned above..

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