Mesoscale Discussion 0450
NWS Storm Prediction Center Norman OK
0529 PM CDT Wed Apr 05 2017
Areas affected...southeast Georgia...coastal south Carolina and
extreme northern Florida
Concerning...Tornado Watch 125...126...
Valid 052229Z - 052330Z
The severe weather threat for Tornado Watch 125, 126 continues.
SUMMARY...The threat for tornadoes, including strong tornadoes,
large hail and damaging wind will persist through 03Z. Tornado
watches 125 and 126 are scheduled to expire at 00Z. However, either
a portion of tornado watch 125 can be locally extended or a new
watch might be issued across south GA for the early evening severe
threat.
DISCUSSION...Line of storms with embedded supercells persist from
coastal SC through southern GA. The line will continue east next few
hours. Tendency has been for the low-level winds to veer with time
resulting in smaller but sufficient 0-1 km hodographs for low-level
mesocyclones and tornadoes as storms move through the moist and
moderately unstable warm sector. Local VWP data indicate 200-250
m2/s2 storm relative helicity based on observed storm motions across
south GA along with 67 kt 0-6 km shear. This environment will
continue to support organized structures including supercells,
bowing segments and embedded mesovortices as storms develop east
through early evening.
..Dial.. 04/05/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ILM...CHS...JAX...FFC...TAE...
LAT...LON 31888107 30708175 30528363 30878394 31478323 32468156
33827875 31888107
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