|
| Mesoscale Discussion 293 |
|
< Previous MD Next MD >
|
|
Mesoscale Discussion 0293
NWS Storm Prediction Center Norman OK
0107 PM CDT Tue Apr 07 2020
Areas affected...Southern Virginia and northern North Carolina
Concerning...Severe potential...Watch unlikely
Valid 071807Z - 071900Z
Probability of Watch Issuance...20 percent
SUMMARY...Scattered storms moving across southern Virginia and into
northern North Carolina will pose an isolated wind and hail threat
with the strongest storms over the next 1-2 hours.
DISCUSSION...A group of scattered thunderstorms moving off the
eastern Appalachians has been producing small (0.25-0.5 inch) hail
over the past hour across southern/southwest VA. A few individual
storms have shown signs of strengthening in radar and IR satellite
imagery within the past 15-30 minutes, likely in response to daytime
heating/destabilization.
An environment characterized by 500-1000 J/kg of MUCAPE and 40-45
knots of effective bulk shear (per SPC Mesoanalysis) will continue
to support the potential for a few robust storms. However, as these
storms propagate to the east/southeast they will become increasingly
displaced from the zone of ascent to the west closer to the
Appalachians. Because of this, most storms are expected to be
relatively short lived, but a few stronger storms that can attain
organized/rotating updrafts may still pose a threat for hail and/or
strong winds in the next 1-2 hours. Due to the short and isolated
nature of the threat, a watch will likely not be needed.
..Moore/Hart.. 04/07/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...AKQ...MHX...RAH...RNK...
LAT...LON 36877703 36667684 36407677 36017690 35797708 35607759
35767848 36057952 36268008 36558055 36818074 37048077
37608007 37417894 37107757 36877703
|
|
Top/All Mesoscale Discussions/Forecast Products/Home
|
|