091  
ACUS01 KWNS 161233  
SWODY1  
SPC AC 161232  
 
DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
0732 AM CDT MON MAR 16 2026  
 
VALID 161300Z - 171200Z  
 
...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS TODAY ACROSS  
PARTS OF CENTRAL MARYLAND...MUCH OF CENTRAL AND EASTERN  
VIRGINIA...CENTRAL NORTH CAROLINA AND ADJACENT PORTIONS OF SOUTH  
CAROLINA......  
   
..SUMMARY  
 
FAST MOVING THUNDERSTORMS MAY BECOME WIDESPREAD AND ACCOMPANIED BY  
THE RISK FOR DAMAGING WIND GUSTS AND A FEW TORNADOES ACROSS THE MID  
ATLANTIC TODAY. THERE IS POTENTIAL THAT A COUPLE OF STORMS COULD  
BECOME CAPABLE OF PRODUCING STRONG AND LONG TRACK TORNADOES.  
   
..SOUTHEAST STATES  
 
AN INTENSE UPPER TROUGH CONTINUES TO DEEPEN OVER THE MID MS VALLEY,  
WITH ITS ASSOCIATED SURFACE COLD FRONT SURGING EASTWARD ACROSS THE  
APPALACHIANS AND INTO THE CAROLINAS/MID-ATLANTIC. AN ACTIVE LINE OF  
THUNDERSTORMS IS ACCOMPANYING THE FRONT FROM GA INTO WESTERN  
SC/NC/VA. LOW-LEVEL WINDS ARE VERY STRONG ALONG AND AHEAD OF THESE  
STORMS, ENCOURAGING THE RISK OF NUMEROUS SEVERE WIND GUSTS AND  
EMBEDDED QLCS TORNADOES ALONG THE LINE. CLUSTERS OF THUNDERSTORMS  
HAVE BEEN DEVELOPING AHEAD OF THE LINE AS WELL, IN A MOIST AND  
STRONGLY SHEARED ENVIRONMENT. THESE STORMS WILL ALSO POSE A  
SEVERE/TORNADO RISK THROUGH THE DAY AS THE PRIMARY LARGE-SCALE  
ASCENT ARRIVES.  
   
..MID ATLANTIC STATES INTO NY  
 
FARTHER NORTH, LOW-LEVEL MOISTURE IS A LITTLE MORE LIMITED AND CAPE  
VALUES WILL BE SLIGHTLY LOWER. NEVERTHELESS, INTENSE LOW AND MID  
LEVEL WIND FIELDS WILL BE PRESENT ACROSS THIS REGION AS THE COLD  
FRONT APPROACHES FROM THE WEST. THUNDERSTORMS ARE EXPECTED TO  
STRENGTHEN THROUGH THE LATE MORNING ACROSS WEST-CENTRAL VA INTO  
CENTRAL NY/PA AND SPREAD EASTWARD TO THE COAST BY EARLY EVENING.  
FORECAST SOUNDINGS ACROSS THIS AREA SHOW VERY LARGE LOW-LEVEL SHEAR  
VALUES THAT WILL FAVOR THE RISK OF WIDESPREAD DAMAGING WINDS AND  
SEVERAL TORNADOES. STRONG TORNADOES WILL BE POSSIBLE - ESPECIALLY  
FROM MD SOUTHWARD WHERE THE GREATEST LOW-LEVEL MOISTURE WILL BE  
PRESENT.  
 
IN THE WAKE OF THE MAIN CONVECTION, SECONDARY CYCLOGENESIS IS  
FORECAST TO OCCUR LATE THIS AFTERNOON ALONG THE COLD FRONT OVER  
VA/MD. THE INITIAL STORMS WILL REMOVE MOST OF THE LOW-LEVEL  
MOISTURE/INSTABILITY, BUT THE EXTREME INTENSITY OF THE LOW-LEVEL  
WINDS FIELDS AND LARGE-SCALE FORCING COULD RESULT IN A SECONDARY  
RISK OF DAMAGING WINDS FROM LOW-TOPPED SHOWERS AND THUNDERSTORMS  
AFTER DARK. THIS THREAT COULD SPREAD NORTHEASTWARD INTO EASTERN  
PA/NJ AND PERHAPS SOUTHERN NEW ENGLAND.  
 
..HART/LYONS.. 03/16/2026  
 
 
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