874
ACUS11 KWNS 192026
SWOMCD
SPC MCD 192026
OHZ000-INZ000-192130-
MESOSCALE DISCUSSION 0791
NWS STORM PREDICTION CENTER NORMAN OK
0326 PM CDT TUE MAY 19 2026
AREAS AFFECTED...CENTRAL INDIANA INTO WESTERN OHIO
CONCERNING...SEVERE POTENTIAL...SEVERE THUNDERSTORM WATCH LIKELY
VALID 192026Z - 192130Z
PROBABILITY OF WATCH ISSUANCE...80 PERCENT
SUMMARY...AS CONVECTIVE COVERAGE HAS INCREASED THIS AFTERNOON ACROSS
CENTRAL AND NORTHERN INDIANA, IT HAS GRADUALLY BEGUN TO ORGANIZE
INTO LINE-SEGMENTS/CLUSTERS. AS THESE STORMS CONTINUE TO ORGANIZE,
THEY COULD POSE A DAMAGING WIND THREAT... PARTICULARLY WITH ANY
BOWING LINE SEGMENTS THAT MAY DEVELOP.
DISCUSSION...CONVECTIVE COVERAGE HAS CONTINUED TO INCREASE OVER
CENTRAL AND NORTHERN INDIANA, ESPECIALLY OVER THE LAST HALF HOUR.
RECENT MRMS TRENDS SHOW LOOSE ORGANIZATION INTO LINE SEGMENTS AHEAD
OF AN ENVIRONMENT CHARACTERIZED BY STRONG DCAPE, STEEP LOW-LEVEL
LAPSE RATES, AND WELL-MIXED BOUNDARY LAYER PROFILES. WHILE THERE IS
SOME UNCERTAINTY TO WHICH DEGREE THESE STORMS WILL ORGANIZE DUE TO
THE RELATIVE LACK OF DEEP-LAYER SHEAR, THE ENVIRONMENT SUPPORTS THE
POTENTIAL FOR DAMAGING STRAIGHT-LINE THUNDERSTORM WINDS. THIS THREAT
WILL BE MAXIMIZED ALONG THE LEADING EDGE OF ANY BOWING SEGMENTS THAT
DEVELOP.
..HALBERT/HART.. 05/19/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...ILN...IWX...IND...
LAT...LON 39508749 39988650 40498599 40798571 41048525 41248503
41218434 40958411 40488429 39928458 39468489 39168512
38888564 38878618 38928679 39018723 39208741 39508749
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
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