SPC MD 1685



MD 1685 CONCERNING SEVERE POTENTIAL…WATCH POSSIBLE FOR CENTRAL ALABAMA

MD 1685 Image

Mesoscale Discussion 1685
NWS Storm Prediction Center Norman OK
0307 PM CST Sat Dec 01 2018

Areas affected...Central Alabama

Concerning...Severe potential...Watch possible 

Valid 012107Z - 012300Z

Probability of Watch Issuance...40 percent

SUMMARY...Isolated severe threat has developed over central Alabama.
Primary risks are damaging winds and perhaps a tornado.

DISCUSSION...Partial sunshine has contributed to some boundary-layer
heating across western AL. Over the last few hours the surface warm
front that was earlier located over southern AL has advanced to a
position from near TOI-SEM-CBM. Boundary-layer heating appears to
have contributed to recent supercell that has strengthened along the
north side of the warm front over Perry county. It's not entirely
clear how much additional convection will evolve over this region
but there is some concern that a few supercells may linger near the
warm front as it advances slowly north. Some tornado threat exists
with this activity. It's uncertain if sufficient coverage will
develop to warrant a watch; however, will continue to closely
monitor this region.

..Darrow/Hart.. 12/01/2018

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

ATTN...WFO...BMX...MOB...

LAT...LON   33088788 33698620 33358555 32338582 31878731 32188821
            33088788 

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