Severe Storm Outlook Narrative (AC)
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000
ACUS11 KWNS 271849
SWOMCD
SPC MCD 271849
ALZ000-271945-

Mesoscale Discussion 0344
NWS Storm Prediction Center Norman OK
0149 PM CDT Mon Mar 27 2017

Areas affected...Central/Northern AL

Concerning...Severe potential...Watch likely

Valid 271849Z - 271945Z

Probability of Watch Issuance...80 percent

SUMMARY...Thunderstorm coverage will continue to increase across the
region, with some severe hail and damaging wind gusts possible. A
watch will be issued to cover the attendant severe threat.

DISCUSSION...Thunderstorms have quickly developed near BHM in an
area where cloudiness stunted boundary-layer mixing and dewpoints
have remained in the mid 60s. Based on recent VAD data, 1-2km flow
is a bit weaker here than areas farther west but 5-6 km flow remains
strong. Resulting bulk shear is favorable for organization within
the strongest updrafts, which, when coupled with the favorable
thermodynamic environment, will support the potential for some
severe hail. Damaging wind gusts are also possible. A tornado or two
cannot be completely ruled out given the somewhat backed surface
winds across portions of east-central and northeast AL but the
weakening 1-2 km winds should mitigate a higher tornado threat. A
watch will be issued across portions of the region to cover the
resulting severe threat.

..Mosier/Guyer.. 03/27/2017

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...BMX...HUN...

LAT...LON   33268814 34438747 34898692 34848573 34188556 32888606
            32648775 33268814




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