WOUS64 KWNS 182203
WOU1  

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 221
NWS STORM PREDICTION CENTER NORMAN OK
603 PM EDT MON MAY 18 2026

SEVERE THUNDERSTORM WATCH 221 REMAINS IN EFFECT UNTIL 800 PM EDT
FOR THE FOLLOWING LOCATIONS

MIC017-049-063-087-091-093-099-111-115-125-145-147-151-155-157-
161-163-190000-
/O.CON.KWNS.SV.A.0221.000000T0000Z-260519T0000Z/

MI 
.    MICHIGAN COUNTIES INCLUDED ARE

BAY                  GENESEE             HURON               
LAPEER               LENAWEE             LIVINGSTON          
MACOMB               MIDLAND             MONROE              
OAKLAND              SAGINAW             ST. CLAIR           
SANILAC              SHIAWASSEE          TUSCOLA             
WASHTENAW            WAYNE               
$$


LCZ422-423-460-LEZ444-LHZ421-422-441-442-443-462-463-464-
190000-
/O.CON.KWNS.SV.A.0221.000000T0000Z-260519T0000Z/

CW 

.    ADJACENT COASTAL WATERS INCLUDED ARE

ST. CLAIR RIVER 

DETROIT RIVER 

LAKE ST. CLAIR OPEN LAKE (U.S. PORTION) 

MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI 

OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER
SAGINAW BAY 

INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI 

PORT AUSTIN TO HARBOR BEACH MI 

HARBOR BEACH TO PORT SANILAC MI 

PORT SANILAC TO PORT HURON MI 

LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH 5NM OFF SHORE TO THE
US/CANADIAN BORDER 

LAKE HURON FROM HARBOR BEACH TO PORT SANILAC 5NM OFF SHORE TO
US/CANADIAN BORDER 

LAKE HURON FROM PORT SANILAC TO PORT HURON 5NM OFF SHORE TO
US/CANADIAN BORDER 

$$


ATTN...WFO...DTX...