SPC Feb 15, 2025 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0330 AM CST Sat Feb 15 2025 Valid 181200Z - 231200Z ...DISCUSSION... An Arctic cold front is expected to surge south and east across the southern Plains and Lower MS Valley on Day 4/Tue. Some thunderstorm potential is possible across the TX Coastal Plain ahead of the front as southerly low-level flow allows northward transport of Gulf moisture. Some potential for an isolated strong to severe thunderstorm will exist across southeast TX during the late afternoon/evening. However, current forecast guidance suggests convection may be elevated due to poor low-level lapse rates and convection becoming quickly undercut by the surging front. Currently, the overall threat appears limited in space and time, though some low-end probabilities may be needed in subsequent outlooks. An Arctic airmass will settle over much of the CONUS on Day 5/Wed, resulting in very cold and stable conditions through the end of the period. This will preclude thunderstorm potential beyond Day 4/Tue. Read more
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0330 AM CST Sat Feb 15 2025 Valid 181200Z - 231200Z ...DISCUSSION... An Arctic cold front is expected to surge south and east across the southern Plains and Lower MS Valley on Day 4/Tue. Some thunderstorm potential is possible across the TX Coastal Plain ahead of the front as southerly low-level flow allows northward transport of Gulf moisture. Some potential for an isolated strong to severe thunderstorm will exist across southeast TX during the late afternoon/evening. However, current forecast guidance suggests convection may be elevated due to poor low-level lapse rates and convection becoming quickly undercut by the surging front. Currently, the overall threat appears limited in space and time, though some low-end probabilities may be needed in subsequent outlooks. An Arctic airmass will settle over much of the CONUS on Day 5/Wed, resulting in very cold and stable conditions through the end of the period. This will preclude thunderstorm potential beyond Day 4/Tue. Read more