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Mesoscale Discussion 0941
NWS Storm Prediction Center Norman OK
0615 PM CDT Fri Jun 19 2020
Areas affected...Portions of the Texas Panhandle and South Plains
region into southwestern Oklahoma and western North Texas
Concerning...Severe Thunderstorm Watch 285...
Valid 192315Z - 200115Z
The severe weather threat for Severe Thunderstorm Watch 285
continues.
SUMMARY...Scattered strong/locally severe storms are ongoing, with
some increase in damaging wind potential possible with time over the
northern half of the WW in particular.
DISCUSSION...Latest radar loop shows storms ongoing in a north-south
band across the Texas South Plains vicinity, ahead of a surface
dryline. These storms -- given the availability of 1000 to 2000
J/kg mixed-layer CAPE downstream -- will remain capable of producing
hail and gusty/damaging winds locally. Overall risk however will
likely be mitigated by modest westerly flow at mid levels.
Farther north, across the Texas Panhandle, somewhat stronger
mid-level flow is evident, with a cluster of strong/severe storms
ongoing east of Amarillo. This convection is occurring near the
dryline's intersection with southwestward-moving outflow associated
with Red River convection. With time, storm clustering/upscale
growth appears possible, especially as the low-level jet further
increases over the next several hours. Eventually, a
southeastward-moving/forward-propagating MCS may evolve, riding
along the aforementioned outflow moving into western North Texas.
This scenario -- also suggested by recent HRRR runs -- could yield
an increase in coverage of damaging wind potential.
..Goss.. 06/19/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OUN...SJT...LUB...AMA...MAF...
LAT...LON 31570242 32750274 34280279 35690177 36120104 35309925
33919855 31940025 31570242
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