Synoptic, Thermodynamic, Shear Setting. May 7, 2002 Tornadic Thunderstorm in Southwestern Kansas Michele Blazek May 15, 2005. Synoptic Setting – What to look for. Warm advection Found through height changes and the sounding Moist air advection into the jet stream Deep layer shear
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May 7, 2002 Tornadic Thunderstorm in Southwestern Kansas
May 15, 2005
Note the area in SW Kansas
with just east of the trough in the rockies,
ageostrophic winds in
Central Kansas and significant
favorable deep layer shear -
50 kt or 5.0 E-3 /s
500 mb Chart 00 UTC 08 May 2002, Observations
Note location just east of the low and dryline and just north of the area of warm, wet advection
2145 UTC 07 May 2002 Visible Image UCAR
2315 UTC 07 May 2002 Visible Image UCAR
Greater than 35 hts and right angles to winds at 18,000 ft - favorable to midlevel mesocyclone development
Note the curving
69 kt - 6.9 E-3/s
0-1 km 445 m2/s2
0-3 km 690 m2/s2
Shotgun Sounding – Significant CAPE as
As day progresses!
The shape of the hodograph suggests some SREH.
Note the CAPE of over 4000 J/kg.
The deep shear is 49 kt. - 4.9E-3/s. Low level shear is smaller than Topeka.
Look at the hook!
Note the supercell on radar and the split from 6:47 to 7:07 pm near
Dodge City, May 7, 2002