437
ACUS48 KWNS 200838
SWOD48
SPC AC 200836
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0236 AM CST SAT DEC 20 2025
VALID 231200Z - 281200Z
..DISCUSSION
THE LARGE-SCALE PATTERN NEXT WEEK WILL BE HIGHLIGHTED BY PROMINENT
UPPER RIDGING AND ANOMALOUSLY HIGH 500-MB HEIGHTS OVER MUCH OF THE
CENTRAL TO EASTERN CONUS, WITH UPPER TROUGHING DEVELOPING TOWARD THE
WEST COAST BY MID/LATE WEEK. THIS PATTERN SHOULD CONSIDERABLY LIMIT
DEEP CONVECTIVE POTENTIAL OVER MUCH OF THE CONUS, EVEN WHILE A
RELATIVELY WARM/MOIST AIRMASS WILL EXIST ACROSS THE PLAINS AND
MIDWEST.
WITH THE APPROACH OF A LOW-LATITUDE UPPER TROUGH AND INCREASING
MOISTURE, THUNDERSTORM POTENTIAL, POTENTIALLY INCLUDING SOME
STRONG/LOCALLY SEVERE STORMS WITH GUSTY WINDS, COULD OCCUR ACROSS
COASTAL PORTIONS OF CENTRAL AND SOUTHERN CALIFORNIA DURING THE LAST
HALF OF WEDNESDAY/DAY 5 INTO THURSDAY/DAY 6 CHRISTMAS. HOWEVER, THE
DEGREE OF DESTABILIZATION AND SOME SYNOPTIC-RELATED FORECAST DETAILS
REMAIN UNCERTAIN.
..GUYER.. 12/20/2025
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