Administrators NorthGeorgiaWX Posted December 29, 2023 Administrators Share Posted December 29, 2023 SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0634 PM CST Thu Dec 28 2023 Valid 290100Z - 291200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk of thunderstorms appears negligible across the U.S. through tonight. ...01Z Update... A large, vigorous short wave trough has emerged from a strong, zonal mid/upper jet extending across the southern mid-latitude western through central Pacific. However, models suggest that this feature, and an associated surface cyclone, will slowly begin to weaken while gradually progressing across the eastern mid-latitude Pacific, toward the Pacific coast, through 12Z Friday. With the leading edge of the stronger mid-level cooling forecast to remain well offshore through the remainder of this period (and generally not forecast to reach Oregon/California coastal areas until tomorrow evening), appreciable boundary-layer destabilization appears unlikely. Models do suggest that lower/mid-tropospheric warm advection and moistening may contribute to an inland spreading band of weak elevated destabilization across northern California and southern Oregon coastal areas around or after 29/08-10Z. However, a combination of weak mid/upper forcing for upward vertical motion and relatively warm layers aloft appear to preclude an appreciable risk for convection capable of producing lightning. ..Kerr.. 12/29/2023 Read more View the full article Quote Link to comment Share on other sites More sharing options...
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