MAY 6 (Tornadic HP supercell near Kaw Reservoir)
Synopsis:
Cold front in Kansas, dryline in western OK, and outflow boundary
near the KS/OK line. The lid was strong, but a line of storms formed
along
the outflow boundary, eventually becoming two SSE-moving HP supercells.
Intercept: The armada intercepted one HP supercell as rotation first
developed, and collected data for several more hours. The storm moved
from
Kaw Reservoir to near Pawnee, OK just after sunset (termination of data
collection). It produced an F1 tornado near US60 east of Ponca City. It
also
produced two wide, parallel swaths of microburst damage. Two of the
vehicles collected data within the microbursts, measuring winds
approaching
40 m/s.
Details
No Aircraft Operations today
Data Collection Highlights:
Fixed-CLASS (ADM and LBB) soundings at 18, 21, and 00Z.
NCAR
M-CLASS serial ascents in the inflow sector. Many updraft and
near-environment M-CLASS soundings.
Several deployments of portable
Doppler on the wall cloud.
Mobile mesonet data collected in the
mesocyclone.
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