SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1023 AM CST Tue Dec 19 2023 Valid 191630Z - 201200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible today across parts of central and northern California. ...Discussion... Broad/low-amplitude ridging aloft will prevail across most of the U.S. today, in the wake of a trough shifting eastward across the Mid-Atlantic Region and New England. In the West, an eastern Pacific low will continue shifting southeastward, with only a glancing influence across the West Coast states. However, this glancing influence will be enough to keep mid-levels relatively cool, and thus maintain very weak instability across this region. As such, sporadic lightning strikes will remain possible -- mainly across portions of northern and central California through tonight. Elsewhere, with the eastern U.S. surface cold front already offshore, and cool/stable high pressure prevailing east of the Rockies, thunderstorms are not expected. ..Goss/Thornton.. 12/19/2023
