Shane Young
EF1
It's most interesting that the main storms in Texas and Kansas are developing well east of the primary dryline. Surface obs put the dryline near EHA to AMA to GNC. That's matched by the westernmost cu field west of Amarillo which is just starting to see initiaion, and on up along the KS/CO border.
So I've been wondering what the other storms are developing on. Originally the arguemment could've been made that the initial cell developed due to a very fine shortwave or such moving through... but now the additional development up in the far eastern OK panhandle has led me to think dual-dryline. The SPC has had such feature in their MD, but have had both drylines well west.
SPC mesoanalysis doesn't show much to convict of this... but sfc data shows a local moist axis maybe through HHF, SNK, and BPG (though those stations may have been anomalously high on Td all day). There is also a faint hint of sfc convergence along the same axis (winds 130 in MCS vs 160 in PPA).
It actually looks like winds are starting to back significantly east of the main dryline the panhandle in response to it starting to move east, which may be beginning to smear out this other finer feature.
It could also just be favored HCRs, and in N Ks the largest storms are developing on a band between the dryline and where I'd place this second feature (which also had one little cell pop near Edmond, KS, even under cirrus still).
I remember both dual drylines and HCRs were of extreme interest on May 3, 99 (http://www.srh.noaa.gov/fwd/soopaper/20thSLS.html for one).
I'm interested for other's thoughts on the issue. Yes the environment was more favorable east... but you still need some focus to generate isolated storms. What was that feature?
So I've been wondering what the other storms are developing on. Originally the arguemment could've been made that the initial cell developed due to a very fine shortwave or such moving through... but now the additional development up in the far eastern OK panhandle has led me to think dual-dryline. The SPC has had such feature in their MD, but have had both drylines well west.
SPC mesoanalysis doesn't show much to convict of this... but sfc data shows a local moist axis maybe through HHF, SNK, and BPG (though those stations may have been anomalously high on Td all day). There is also a faint hint of sfc convergence along the same axis (winds 130 in MCS vs 160 in PPA).
It actually looks like winds are starting to back significantly east of the main dryline the panhandle in response to it starting to move east, which may be beginning to smear out this other finer feature.
It could also just be favored HCRs, and in N Ks the largest storms are developing on a band between the dryline and where I'd place this second feature (which also had one little cell pop near Edmond, KS, even under cirrus still).
I remember both dual drylines and HCRs were of extreme interest on May 3, 99 (http://www.srh.noaa.gov/fwd/soopaper/20thSLS.html for one).
I'm interested for other's thoughts on the issue. Yes the environment was more favorable east... but you still need some focus to generate isolated storms. What was that feature?
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