Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0351 AM CST Sun Mar 02 2025 Valid 051200Z - 101200Z ...DISCUSSION... As the center of a broad and deep surface cyclone migrates across the lower Great Lakes region into Quebec Wednesday through Wednesday night, strong deep-layer mean wind fields will spread east of the Appalachians through the Atlantic Seaboard. This may include one south to south-southwesterly core of 50-80 kt winds in the 850-500 mb layer, coincident with a weakening convective band, remnant from storms developing on Tuesday across the lower Mississippi Valley. Destabilization with the approach of this activity may not be sufficient to support substantive re-intensification as it overspreads southern/middle Atlantic coastal areas during the day Wednesday, but it might still be accompanied by locally strong to severe wind gusts. In its wake, it also might not be out of the question that destabilization beneath the mid-level dry slot could become supportive of vigorous thunderstorm development during the afternoon to the east of the Blue Ridge. However, the extent of this potential remains unclear at this time. In the wake of the cyclone, much of the nation, from the Pacific coast into Great Plains and Southeast, appears likely to remain under the influence of one prominent belt of westerlies emanating from the mid-latitude Pacific. There is some signal in the medium-range guidance that an embedded short wave trough might support a developing frontal wave across the eastern Gulf Coast into southern Atlantic Seaboard vicinity late this coming week into next weekend. However, it is not yet clear that this will be strong enough to support an appreciable risk for severe storms.
