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You are looking at an outlook that is part of the medium range forecast (the outlook for days 4-8). The most important thing to note is that lack of a risk does not mean zero risk. Generally speaking, confidence has to be pretty high for the Storm Prediction Center to have an outlook area this far into the future.
When no specific risk areas are shown, you might see one of these phrases:
If you bookmark this page, it will continue to update with each new outlook that is issued.
| Day 4 | Sunday, March 8 | predictability too low |
| Day 5 | Monday, March 9 | predictability too low |
| Day 6 | Tuesday, March 10 | 15% |
| Day 7 | Wednesday, March 11 | predictability too low |
| Day 8 | Thursday, March 12 | predictability too low |
ZCZC SPCSWOD48 ALL ACUS48 KWNS 050936 SPC AC 050936
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0336 AM CST Thu Mar 05 2026
Valid 081200Z - 131200Z
DISCUSSION
Sunday/Day 4 and Monday/Day 5
A moist airmass in the Gulf Coast region on Sunday will advect northward into the east-central U.S. on Monday. Over the top of this airmass, west-southwesterly mid-level flow will be in place. Although large-scale ascent is forecast to be limited on both days, isolated strong to marginally severe thunderstorms will be possible in the afternoon in areas that heat up sufficiently. The greatest potential for severe storms appears to be on Monday afternoon in the Ark-La-Tex, where moisture and low-level flow are currently forecast to be maximized.
Tuesday/Day 6 to Thursday/Day 8
On Tuesday, model forecasts move an upper-level system across northern Mexico, and retain southwesterly mid-level flow over much of the south-central U.S. A moist and unstable airmass is forecast over much of the southern and central Plains eastward into the lower to mid Mississippi Valley. It appears that large-scale ascent associated with the upper-level trough will gradually increase over the southern and central Plains on Tuesday. In response, scattered thunderstorms should develop over parts of the moist sector Tuesday afternoon and evening. Although model forecasts have slowed the progression of the upper-level low, a belt of strong mid-level flow is still forecast over the south-central U.S. on Tuesday. This suggests that deep-layer shear will support severe thunderstorm development, potentially across a broad area. The severe threat is expected to continue from evening into the overnight period as the upper-level trough approaches.
On Wednesday, the upper-level trough and an associated cold front is forecast to move into the western Gulf Coast states. Ahead of the system, a moist and unstable airmass appears likely by afternoon. Thunderstorms that develop near and ahead of the front could have a severe threat. However, there are still questions about the timing of the trough and front. If model runs continue to suggest that the system will move into the western Gulf Coast states on Wednesday, then a risk area may need to be added. An isolated risk may also develop on Wednesday northeastward ahead of the front in parts of the Tennessee and Ohio Valleys.
On Thursday, the upper-level trough is forecast to move into the eastern U.S., as the cold front moves offshore into the western Atlantic. Thunderstorms with an isolated severe threat would be possible along parts of the Eastern Seaboard before the front passes. However, uncertainty at this extended range is considerable.
..Broyles.. 03/05/2026
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