216
ACUS48 KWNS 280826
SWOD48
SPC AC 280825
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0325 AM CDT SUN SEP 28 2025
VALID 011200Z - 061200Z
..DISCUSSION
STRONG CYCLOGENESIS WITHIN THE WESTERLIES NEAR THE ALEUTIANS LATE
THIS WEEK INTO NEXT WEEKEND MAY LEAD TO THE DEVELOPMENT OF AN
INCREASINGLY PROMINENT BLOCKING PATTERN OVER THE EASTERN
MID-LATITUDE PACIFIC INTO WESTERN NORTH AMERICA. THIS MAY INCLUDE
AN EVOLVING LOW NEAR THE CALIFORNIA COAST, TO THE SOUTHEAST OF
BUILDING MID/UPPER HIGH OVER THE NORTHEASTERN PACIFIC BY THE END OF
THE PERIOD. IN GENERAL, THOUGH, STRONGER WESTERLIES ARE FORECAST TO
REMAIN CONFINED TO THE NORTHERN MID-LATITUDES, WITH LITTLE POTENTIAL
FOR SUBSTANTIVE CYCLOGENESIS TO THE LEE OF THE ROCKIES, AND MOIST
RETURN FLOW OFF THE GULF BASIN. THIS LIKELY WILL MAINTAIN GENERALLY
LOW CONVECTIVE POTENTIAL ACROSS THE NATION.
..KERR.. 09/28/2025
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