|Mesoscale Discussion 88|
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Mesoscale Discussion 0088
NWS Storm Prediction Center Norman OK
0640 AM CST Thu Feb 06 2020
Areas affected...Parts of east central Alabama into west
Concerning...Tornado Watch 26...
Valid 061240Z - 061415Z
The severe weather threat for Tornado Watch 26 continues.
SUMMARY...Potential for the development of one or two supercells
capable of producing tornadoes appears to be increasing, and could
impact the Atlanta metropolitan area by 8-10 AM EST.
DISCUSSION...A surface warm front has become at least somewhat
better defined across the piedmont of Alabama and Georgia during the
past couple of hours. Along it, 12Z surface observations indicate
that 2-hourly surface pressure falls remain maximized near the
Greater Atlanta Metropolitan area, where surface dew point increases
into the mid/upper 60s are contributing to at least weak boundary
layer destabilization. Low-level shear is becoming strong to
extreme beneath 50-70 kt flow in the 850-700 mb layer, and some
increase in clockwise hodograph curvature still appears possible
ahead of gradually intensifying thunderstorms spreading across and
east of the Anniston AL area. Further intensification of this and
nearby storms appears probable during the next couple of hours,
including the possible evolution of supercells which could impact
the Atlanta vicinity, accompanied by potential for producing
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 33318632 33988532 34058430 33418391 32698488 32558625
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