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Mesoscale Discussion 0880
NWS Storm Prediction Center Norman OK
0109 PM CDT Mon Jun 08 2020
Areas affected...northeast Mississippi into west central Alabama
Concerning...Severe potential...Watch unlikely
Valid 081809Z - 082045Z
Probability of Watch Issuance...20 percent
SUMMARY...A brief/weak tornado or two will be possible with TD
Cristobal as it slowly moves to the north and west. A weather watch
is unlikely.
DISCUSSION...NHC guidance indicates Cristobal has weakened to a
Tropical Depression and is located at 32.5N 91.8W or 15 miles east
of Monroe LA, moving northwest at 15 mph. Clearing on the east side
of the core of the decaying cyclone has allowed temperatures to rise
into the low 80s F. The increase in temperature and a very humid
tropical airmass is supporting MLCAPE of 500-1000 J/kg. The increase
in buoyancy should allow storms to increase in coverage an intensity
over the next 1 to 2 hours. The wind fields around Cristobal remains
sufficiently strong to support rotating updrafts with 0-1 km SRH of
200-300 m2/s2 as sampled by the Columbus AFB VAD. A few miniature
supercells capable of a brief/weak tornado or strong wind gust will
be possible through the next several hours. Coverage is expected to
remain relatively low given the limited buoyancy, and modest, for TC
standards, low-level shear. Convective trends will be monitored, but
a watch seems unlikely.
..Lyons/Thompson.. 06/08/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...BMX...HUN...MEG...JAN...
LAT...LON 33548997 33959031 34339057 34489066 34679063 34849050
34989012 35008904 34838840 34658809 34048810 33068829
32608848 32498885 32608916 32808939 33148960 33548997
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