WOUS64 KWNS 190533 WOU8 SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 228 NWS STORM PREDICTION CENTER NORMAN OK 1233 AM CDT TUE MAY 19 2026 SEVERE THUNDERSTORM WATCH 228 REMAINS IN EFFECT UNTIL 400 AM CDT FOR THE FOLLOWING LOCATIONS IAC087-101-103-111-177-183-190900- /O.CON.KWNS.SV.A.0228.000000T0000Z-260519T0900Z/ IA . IOWA COUNTIES INCLUDED ARE HENRY JEFFERSON JOHNSON LEE VAN BUREN WASHINGTON $$ MOC007-019-027-045-051-103-111-127-135-137-173-199-205-190900- /O.CON.KWNS.SV.A.0228.000000T0000Z-260519T0900Z/ MO . MISSOURI COUNTIES INCLUDED ARE AUDRAIN BOONE CALLAWAY CLARK COLE KNOX LEWIS MARION MONITEAU MONROE RALLS SCOTLAND SHELBY $$ ATTN...WFO...DVN...LSX...