Mesoscale Discussion 0560
NWS Storm Prediction Center Norman OK
0939 AM CDT Wed Apr 26 2017
Areas affected...southeastern MO...much of central and eastern
AR...far northwestern LA...northeast TX
Concerning...Severe potential...Tornado Watch likely
Valid 261439Z - 261515Z
Probability of Watch Issuance...95 percent
SUMMARY...A tornado watch will be issued shortly for much of central
and eastern AR into northeast TX. An isolated severe threat will
also extend into southeast MO.
DISCUSSION...The air mass over AR will continue to destabilize over
the next few hours. While the risk for tornadoes appears limited in
the near term, the increasing instability/strong shear will be
favorable for storm-scale rotation and an increasing risk for
low-level mesocyclones capable of tornadoes. The greatest risk for
strong tornadoes will probably develop later across southern AR
coincident with peak heating during the afternoon and evening hours.
..Smith/Hart.. 04/26/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PAH...MEG...LSX...LZK...SGF...SHV...FWD...
LAT...LON 33149539 37039181 37328987 36768944 35689016 32609280
32279423 32439514 33149539
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