MD 1978 CONCERNING TORNADO WATCH 551… FOR WRN AL/SERN MS/FAR SERN LA/FAR WRN FL PANHANDLE
MESOSCALE DISCUSSION 1978
NWS STORM PREDICTION CENTER NORMAN OK
0521 AM CST WED NOV 18 2015
AREAS AFFECTED...WRN AL/SERN MS/FAR SERN LA/FAR WRN FL PANHANDLE
CONCERNING...TORNADO WATCH 551...
VALID 181121Z - 181315Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 551 CONTINUES.
SUMMARY...ISOLATED SEVERE/BRIEF TORNADO RISK PERSISTS WITHIN
LOW-TOPPED CONVECTIVE LINE. A BRIEF/WEAK TORNADO ALSO CANNOT BE
RULED OUT WITHIN ISOLATED SHOWERS AHEAD OF THE MAIN CONVECTIVE LINE.
DISCUSSION...A ZONE OF CONVECTION INCLUDING A NARROW/ACTIVE LINE OF
STRONGER STORMS AT THE LEADING EDGE CONTINUES MOVING EWD ACROSS ERN
MS/WRN AL ATTM. INSTABILITY REMAINS MEAGER AND LOW-TOPPED...WITH
MOST OF THE CONVECTIVE TOPS REMAINING BELOW 25000 FT.
WITH NO APPRECIABLE MOISTENING/DESTABILIZATION EXPECTED ACROSS THE
AREA...ANY LINGERING SEVERE RISK REMAINS DRIVEN BY THE ORGANIZING
EFFECTS OF THE VERY STRONG KINEMATIC ENVIRONMENT ACROSS THIS AREA.
GIVEN THE AMOUNT OF LOW-LEVEL FLOW/SHEAR PRESENT...LOCALLY
GUSTY/DAMAGING WINDS WITH BOWING SEGMENTS AND/OR A BRIEF TORNADO
ARISING FROM TRANSIENT/SMALL-SCALE CIRCULATIONS REMAIN POSSIBLE
ACROSS THE WW AREA.
..GOSS.. 11/18/2015
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...BMX...MOB...JAN...LIX...
LAT...LON 33918791 33558716 32018709 30388728 28778835 28789002
31318886 32818810 33918791
from SPC Mesoscale Discussions http://1.usa.gov/1Nb5GCE
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