Mesoscale Discussion 0610 NWS Storm Prediction Center Norman OK 0729 PM CDT Tue Apr 28 2026 Areas affected...Much of Arkansas Concerning...Tornado Watch 177... Valid 290029Z - 290230Z The severe weather threat for Tornado Watch 177 continues. SUMMARY...Scattered severe storms continue to track across Arkansas this evening, with a risk of large hail, damaging winds, and a few tornadoes. DISCUSSION...Three distinct clusters of intense storms continue to track eastward across AR, over Van Buren, Yell, and Hempstead counties. These storms will likely persist eastward across WW177 for several more hours, where moderate CAPE and sufficiently strong low-level shear will maintain the risk of supercells and a few tornadoes. Strong tornadoes are possible if more discrete storm modes develop. The LZK VAD is sampling the strengthening wind fields, now showing over 500 m2/s2 of 0-3 SRH and STP values over 5. Increased warm advection/lift has led greater coverage of storms in the past 2 hours. This activity will spread eastward and to the west of WW177 this evening, likely requiring a new watch in the next hour or two over eastern AR/west TN and northern MS. ..Hart.. 04/29/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MEG...JAN...LZK...SHV... LAT...LON 35809261 36169047 35718962 34239035 33309304 33789369 35809261 MOST PROBABLE PEAK TORNADO INTENSITY...120-145 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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