703  
ACUS01 KWNS 040513  
SWODY1  
SPC AC 040511  
 
DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK  
1111 PM CST SAT JAN 03 2026  
 
VALID 041200Z - 051200Z  
   
..NO SEVERE THUNDERSTORM AREAS FORECAST  
 
   
..SUMMARY  
 
WIDELY SCATTERED, GENERALLY WEAK, THUNDERSTORM ACTIVITY IS POSSIBLE  
TODAY ACROSS PARTS OF CENTRAL CALIFORNIA AND THE PACIFIC NORTHWEST  
INTO PORTIONS OF THE GREAT BASIN.  
   
..DISCUSSION  
 
MID-LEVEL TROUGHING, DIGGING INTO AND THROUGH THE NORTHERN MID  
ATLANTIC AND NORTHEAST EARLY TODAY, IS FORECAST TO QUICKLY TURN  
EASTWARD OFFSHORE AND ACROSS THE CANADIAN MARITIMES THROUGH THE  
REMAINDER OF THE PERIOD, TRAILED BY A MORE MODEST PERTURBATION  
DIGGING ACROSS THE FLORIDA PENINSULA AND BAHAMAS VICINITY. A  
BROADLY CONFLUENT MID-LEVEL REGIME IN ITS WAKE IS FORECAST TO  
SUPPORT THE EASTWARD PROGRESSION OF COOL SURFACE RIDGING INTO AND  
ACROSS THE ATLANTIC SEABOARD, WITH PERHAPS SOME FURTHER SOUTHWARD  
ADVANCEMENT OF THE WEAKENING LEADING EDGE OF THE COLD AIR POSSIBLE  
ACROSS THE SOUTHERN FLORIDA PENINSULA AND CENTRAL THROUGH  
SOUTHWESTERN GULF BASIN.  
 
WHILE MID/UPPER RIDGING IS LIKELY TO BE MAINTAINED ACROSS MUCH OF  
INTERIOR NORTH AMERICA, IT APPEARS THAT IT WILL GRADUALLY LOSE  
AMPLITUDE AS A NUMBER OF SMALLER-SCALE PERTURBATIONS, EMERGING FROM  
SPLITTING LARGE-SCALE TROUGHING NEAR THE PACIFIC COAST, PROGRESS  
THROUGH IT. ACROSS THE EASTERN PACIFIC INTO WESTERN NORTH AMERICA,  
MODELS GENERALLY INDICATE THAT ONE WEAKENING SHORT WAVE IMPULSE WILL  
ACCELERATE INLAND ACROSS THE CENTRAL CALIFORNIA COAST AND SIERRA  
NEVADA DURING THE DAY, TRAILED INLAND BY A SOMEWHAT STRONGER, BUT  
WEAKENING, PERTURBATION ACROSS THE PACIFIC NORTHWEST AND CASCADES,  
IN ADVANCE OF A SHARPLY DIGGING PERTURBATION ACROSS THE MID-LATITUDE  
EASTERN PACIFIC.  
   
..PACIFIC COAST INTO INTERMOUNTAIN WEST  
 
MID-LEVEL COOLING AND FORCING FOR ASCENT OVERSPREADING THE REGION  
TODAY THROUGH TONIGHT PROBABLY WILL CONTRIBUTE TO THE EVOLUTION OF  
THERMODYNAMIC PROFILES OCCASIONALLY BECOMING AT LEAST MARGINALLY  
CONDUCIVE TO WIDELY SCATTERED CONVECTIVE DEVELOPMENT CAPABLE OF  
PRODUCING LIGHTNING.  
   
..SOUTHERN FLORIDA  
 
MID-LEVEL COOLING AND FORCING FOR ASCENT, ASSOCIATED WITH THE  
DIGGING SHORT WAVE TROUGH, MIGHT CONTRIBUTE TO SUFFICIENT  
DESTABILIZATION FOR AN ISOLATED BRIEF THUNDERSTORM OR TWO, MAINLY  
ACROSS THE INTERIOR SOUTHERN PENINSULA THROUGH SOUTHEAST COASTAL  
AREAS LATE THIS AFTERNOON.  
 
..KERR.. 01/04/2026  
 
 
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