SPC Apr 30, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0303 AM CDT Wed Apr 30 2025 Valid 031200Z - 081200Z ...DISCUSSION... A cold front will shift southward across the southern US at the start of the extended period, scouring out much of the moisture across the CONUS. An upper level ridge is expected to strengthen across the central US while weak troughing continues in the northeast. This pattern will limit severe potential across the CONUS through the weekend. As a surface high across the Plains strengthens and shifts eastward into the Midwest, return flow from the Gulf will bring moisture back in across the central and southern Plains starting D6/Monday. A trough will strengthen across the western US D5/Sunday before ejecting into the Plains sometime D7/Tuesday into D8/Wednesday. This would likely bring a return to chances for severe storms across some portion of the southern and central Plains. There is uncertainty in how far northward moisture return will reach and where exactly surface features will be during this time period. This precludes the need to include areas at this time. Read more
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0303 AM CDT Wed Apr 30 2025 Valid 031200Z - 081200Z ...DISCUSSION... A cold front will shift southward across the southern US at the start of the extended period, scouring out much of the moisture across the CONUS. An upper level ridge is expected to strengthen across the central US while weak troughing continues in the northeast. This pattern will limit severe potential across the CONUS through the weekend. As a surface high across the Plains strengthens and shifts eastward into the Midwest, return flow from the Gulf will bring moisture back in across the central and southern Plains starting D6/Monday. A trough will strengthen across the western US D5/Sunday before ejecting into the Plains sometime D7/Tuesday into D8/Wednesday. This would likely bring a return to chances for severe storms across some portion of the southern and central Plains. There is uncertainty in how far northward moisture return will reach and where exactly surface features will be during this time period. This precludes the need to include areas at this time. Read more