Mesoscale Discussion 0082
NWS Storm Prediction Center Norman OK
1244 PM CST Wed Feb 21 2018
Areas affected...North-Central TX and South-Central OK
Concerning...Winter mixed precipitation
Valid 211844Z - 212245Z
SUMMARY...A wintry mix of sleet and freezing rain will spread across
North-Central TX into South-Central OK. Freezing rain rates could
exceed .05" per hour.
DISCUSSION...Low-level warm advection has contributed to an elevated
MCS that is oriented north-south across TX. This activity is
spreading northeast into south-central OK and advancing east toward
the I-35 corridor into the northwest parts of the Metroplex.
Strongest updrafts are producing lightning, mainly south of the Red
River, and this is where the heavier precipitation is expected to
persist into the mid afternoon hours. At this time it appears the
freezing line will move little and the heaviest corridor of ice
pellets, transitioning to freezing rain, will extend from northwest
of SEP to west of MLC. Freezing rain will be common east of I-35 and
rates could exceed .05"/hr.
..Darrow.. 02/21/2018
...Please see
www.spc.noaa.gov for graphic product...
ATTN...WFO...TSA...FWD...OUN...
Winter time post are almost exclusively focused on the DFW area.