Mesoscale Discussion 1072
NWS Storm Prediction Center Norman OK
0254 PM CDT Wed Jul 01 2020
Areas affected...Western Tennessee...northern
Mississippi...northeastern Arkansas...far western Kentucky
Concerning...Severe potential...Watch unlikely
Valid 011954Z - 012100Z
Probability of Watch Issuance...20 percent
SUMMARY...Line of strong convection has produced wind gusts that
have been well below severe limits. A recent measured gust at
Newport, AR, of 45 kts suggest that some increase in intensity has
occurred. With the southeastward moving segment accelerating
recently, a few stronger/damaging gusts are possible in the highly
unstable environment. The isolated nature of the threat is expected
to preclude WW issuance.
DISCUSSION...Though observed wind gusts have generally remained in
the 20-30 kt range over the last few hours, a recent 45 kt gust at
Newport, AR, suggests that locally damaging wind gusts are still
possible. A portion of the line has accelerated to around 35 kts and
is moving into objectively analyzed 3500 J/kg MLCAPE. As this
continues to move southeast, locally strong/damaging wind gusts will
be possible. At its current speed, Memphis may be impacted around 4
PM CDT. With a continued expectation that damaging gusts will remain
spatially limited, a WW is not anticipated.
..Wendt/Hart.. 07/01/2020
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PAH...MEG...LZK...
LAT...LON 35489158 36269008 36498956 36698913 36818887 36718858
36008835 34808888 34728891 34329000 34559098 35159163
35489158
|