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Mesoscale Discussion 1211
NWS Storm Prediction Center Norman OK
1221 PM CDT Mon Jul 13 2020
Areas affected...Eastern North Carolina...northeast South
Carolina...southeast Virginia.
Concerning...Severe potential...Watch unlikely
Valid 131721Z - 131845Z
Probability of Watch Issuance...20 percent
SUMMARY...Scattered strong to occasionally severe storms are
expected this afternoon and evening. Damaging wind will be the
primary threat.
DISCUSSION...A cumulus field has expanded across the Carolinas as
temperatures have warmed into upper 80s to low 90s with dewpoints in
the low to mid 70s. This has yielded MLCAPE around 2000 J/kg across
eastern North Carolina. Expect scattered to possibly numerous storms
to develop through the afternoon as boundary-layer lift increases as
the mid-level shortwave, currently over the spine of the
Appalachians, moves east. KCAE/KLTX VWPs show very weak flow in the
low to mid troposphere which will not support storm organization and
a more widespread severe weather threat. However, moderate to strong
instability (MLCAPE expected to peak near 3000 J/kg later this
afternoon) should be sufficient for some stronger downdrafts capable
of producing isolated wind damage.
..Bentley/Edwards.. 07/13/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...AKQ...MHX...RAH...ILM...RNK...CAE...GSP...
LAT...LON 33768090 34398119 35538077 36227950 36687750 36827613
36227565 35557536 35137546 34627621 34377689 33727794
33497863 33317903 33357939 33768090
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