For those that are reading this on the Real Wx Services page the above was addressed to those on my other page that I admin called Storm Support & Severe Weather Education.
Now back to the severe weather outlook .
Temperatures today across the area where there is the potential of severe are goin
g to be in the 80s to the 90s.
http://www.twisterdata.com/ data/models/nam/221/maps/2012/ 09/06/18/ NAM_221_2012090618_F30_TMPF_2_M _ABOVE_GROUND.png
Dew points will be in the upper 50s to upper 60s depending on where you are located..
http://www.twisterdata.com/ data/models/nam/221/maps/2012/ 09/06/18/ NAM_221_2012090618_F30_DPTF_2_M _ABOVE_GROUND.png
CAPE or Convective Available potential energy will be anywhere from 500- to as much as 4000 depending on where you are located..
http://www.twisterdata.com/ data/models/nam/221/maps/2012/ 09/06/18/ NAM_221_2012090618_F24_CAPE_SUR FACE.png
Lift Index
Lift in the atmosphere will generally be from 0 to negative 10 however there is isolated locales that are around -11 to -12
http://www.twisterdata.com/ data/models/nam/221/maps/2012/ 09/06/18/ NAM_221_2012090618_F24_PLI_30_0 _MB_ABOVE_GROUND.png
Now when it comes to tornados we like to look at things like the Energy Helicity Index and the Helicity and the Shear...
When we see the EHI like it is across Indiana /Illinois this tells us that tornado potential is possible especially in that part of the area.
http://www.twisterdata.com/ data/models/nam/221/maps/2012/ 09/06/18/ NAM_221_2012090618_F24_EHI_3000 _M.png
And you will see that it is in these general areas that the Helicity is also on the high side...
http://www.twisterdata.com/ data/models/nam/221/maps/2012/ 09/06/18/ NAM_221_2012090618_F30_HLCY_300 0_M_ABOVE_GROUND_0_M_ABOVE_GRO UND.png
Shear also is pretty substantial incoming with this cold front..
http://www.twisterdata.com/ data/models/nam/221/maps/2012/ 09/06/18/ NAM_221_2012090618_F30_SHRM_500 _MB.png
Shear shows to be 30 to as much as 60 knots...
At the surface we have a cold front that will be dropping east and south east across the region and this will serve as the trigger for the the severe weather potential.
http://www.hpc.ncep.noaa.gov/ basicwx/95fwbgus.gif
Outside of the regions mentioned above for the tornado potential the main threats will be winds and hail...
http://www.twisterdata.com/
Dew points will be in the upper 50s to upper 60s depending on where you are located..
http://www.twisterdata.com/
CAPE or Convective Available potential energy will be anywhere from 500- to as much as 4000 depending on where you are located..
http://www.twisterdata.com/
Lift Index
Lift in the atmosphere will generally be from 0 to negative 10 however there is isolated locales that are around -11 to -12
http://www.twisterdata.com/
Now when it comes to tornados we like to look at things like the Energy Helicity Index and the Helicity and the Shear...
When we see the EHI like it is across Indiana /Illinois this tells us that tornado potential is possible especially in that part of the area.
http://www.twisterdata.com/
And you will see that it is in these general areas that the Helicity is also on the high side...
http://www.twisterdata.com/
Shear also is pretty substantial incoming with this cold front..
http://www.twisterdata.com/
Shear shows to be 30 to as much as 60 knots...
At the surface we have a cold front that will be dropping east and south east across the region and this will serve as the trigger for the the severe weather potential.
http://www.hpc.ncep.noaa.gov/
Outside of the regions mentioned above for the tornado potential the main threats will be winds and hail...
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