SPC Sep 26, 2024 Day 4-8 Severe Weather Outlook
Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0316 AM CDT Thu Sep 26 2024 Valid 291200Z - 041200Z ...DISCUSSION... The upper low over the OH Valley will weaken and become an open wave early next week. Meanwhile, upper troughing across the east will be reinforced through midweek by a shortwave trough developing east/southeast across the Great Lakes. A surface cold front will develop east/southeast across much of the Plains and Midwest through Day 6/Tue. However stronger deep-layer flow will remain displaced well to the north and behind the front. Meanwhile, low-amplitude upper ridging will prevail across the Southwest/Four Corner, while a series of shortwave troughs migrate through more progressive northern stream flow near the international border in the vicinity of the Pacific Northwest and northern Rockies. Overall severe thunderstorm potential appears low during the Day 4-8 period. Read more
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0316 AM CDT Thu Sep 26 2024 Valid 291200Z - 041200Z ...DISCUSSION... The upper low over the OH Valley will weaken and become an open wave early next week. Meanwhile, upper troughing across the east will be reinforced through midweek by a shortwave trough developing east/southeast across the Great Lakes. A surface cold front will develop east/southeast across much of the Plains and Midwest through Day 6/Tue. However stronger deep-layer flow will remain displaced well to the north and behind the front. Meanwhile, low-amplitude upper ridging will prevail across the Southwest/Four Corner, while a series of shortwave troughs migrate through more progressive northern stream flow near the international border in the vicinity of the Pacific Northwest and northern Rockies. Overall severe thunderstorm potential appears low during the Day 4-8 period. Read more