|Mesoscale Discussion 88|
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Mesoscale Discussion 0088
NWS Storm Prediction Center Norman OK
0741 AM CST Sat Jan 21 2017
Areas affected...Central and southern Alabama...western Florida
Panhandle...and parts of west and southwest Georgia
Concerning...Tornado Watch 11...
Valid 211341Z - 211515Z
The severe weather threat for Tornado Watch 11 continues.
SUMMARY...The severe-weather threat including a tornado risk
continues across WW 11 this morning.
A new tornado watch will be coordinated soon to the east of WW 11
for parts of west, southwest, and central Georgia.
DISCUSSION...A well-developed MCS and associated mesolow are moving
across central and southern Alabama, with the mesolow now located
near or north of SEM. A warm front extended east from the mesolow
into west-central and central Georgia. Low-level mass response
continues to result in downstream moistening of the environment into
eastern Alabama and southwest, west-central and central Georgia this
morning. This combined with strong deep-layer and strengthening
low-level shear (0-1 km SRH of 300-400 m2/s2 in east and southeast
Alabama) from west-east across the warm sector will continue to
favor a threat for a few tornadoes, damaging winds and hail. Given
the supportive thermodynamics and kinematics, the discrete storms
developing near the warm front (e.g. Troup County, GA) and the warm
sector, as well as along two bands of storms in central and
southwest Alabama will pose a risk for all severe hazards this
morning (across WW 11) and across parts of Georgia this morning and
LAT...LON 31098839 32288697 33108685 33418598 33528493 33438438
33368320 33078309 32048300 31638312 31148313 30868465
30728544 30308601 30208713 30068829 31098839
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