SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0151 AM CDT Mon Mar 27 2023 Valid 291200Z - 301200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Wednesday. ...Synopsis... An upper ridge will overspread the Plains on Wednesday ahead of a closed upper low/trough moving southeast across CA into the western Great Basin. At the surface, high pressure will dominate across the Midwest and southern U.S., where a dearth of boundary-layer moisture will result in mostly stable conditions. A surface cold front will move across southern FL during the day, and a few thunderstorms are possible. Additional thunderstorms are expected across parts of CA where steepening midlevel lapse rates will support sufficient instability for isolated lightning flashes. Increasing southerly low-level flow across the southern Plains late in the period will begin to transport Gulf moisture northward across southern/central TX. Isolated, elevated thunderstorms will be possible after 00z in this warm advection regime. Overall severe potential is expected to remain low across the U.S. on Wednesday. ..Leitman.. 03/27/2023
