Severe Storm Outlook Narrative (AC)
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

632
ACUS11 KWNS 200451
SWOMCD
SPC MCD 200451
MOZ000-ARZ000-OKZ000-TXZ000-200645-

Mesoscale Discussion 0796
NWS Storm Prediction Center Norman OK
1151 PM CDT Fri May 19 2017

Areas affected...parts of southern Missouri...portions of northern
and western Arkansas...and eastern Oklahoma

Concerning...Tornado Watch 252...

Valid 200451Z - 200645Z

The severe weather threat for Tornado Watch 252 continues.

SUMMARY...Severe potential -- including risk for locally damaging
winds, hail, and brief tornadoes, will continue over the next few
hours.

DISCUSSION...Latest radar loop shows a broken,
northeast-to-southwest band of locally severe thunderstorms
extending from southwest Missouri southwest across eastern Oklahoma,
along western portions of WW 252.  Moderate instability persists
ahead of the MCS, particularly southwest of the Ozarks, with 1500 to
2000 J/kg mixed-layer CAPE still in place over southeast Oklahoma
and into Arkansas.  With a 40 kt southerly low-level jet indicated
by area VWPs beneath 50 kt mid-level southwesterly flow, shear
remains supportive of organized/rotating storms.  Greatest tornado
risk appears to exist across the southeast Oklahoma area, which may
spread into western Arkansas over the next few hours.  Meanwhile,
locally damaging winds and marginal hail risk will likely persist
along the band of convection as storms cross the remainder of WW
252.

..Goss.. 05/20/2017

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

ATTN...WFO...PAH...LSX...LZK...SGF...SHV...TSA...FWD...OUN...

LAT...LON   33859514 33859645 34359665 35379522 35899451 36409398
            37349342 37699097 37149082 34389345 33859514




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.