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Mesoscale Discussion 0837
NWS Storm Prediction Center Norman OK
0951 PM CDT Thu May 19 2022

Areas affected...southern IN

Concerning...Severe Thunderstorm Watch 249...

Valid 200251Z - 200445Z

The severe weather threat for Severe Thunderstorm Watch 249
continues.

SUMMARY...The risk for wind damage and localized severe gusts will
continue with stronger storms on the southeast flank of the MCV
moving east across the lower Wabash Valley.  Brief tornadoes are
also possible with any sustained mesovortices due in part to strong
low-level shear and a moist boundary layer.

DISCUSSION...Radar mosaic shows an MCV over south-central IL moving
east towards the IN border.  A rejuvenation of thunderstorm activity
has occurred on the southeast flank of the large-scale mid-level
circulation/rain shield.  Surface conditions remain rather moist
with a warm frontal zone/co*posite outflow boundary draped across
southern IN near the I-64 corridor.  KLVX VAD has shown the earlier
described and projected intensification of the low-level wind field
across southern IN with 50-kt noted at 1 km AGL at KIND's VAD.  As a
result, a continued risk for storm-scale rotation and the risk for
wind damage will continue for the next several hours as the stronger
storms move east along the I-64 corridor in southern IN.

..Smith.. 05/20/2022

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

ATTN...WFO...LMK...IND...PAH...

LAT...LON   38518574 38628738 38328765 38078750 38098572 38388549
            38518574