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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 | Thursday, November 20 | predictability too low |
| Day 5 | Friday, November 21 | predictability too low |
| Day 6 | Saturday, November 22 | predictability too low |
| Day 7 | Sunday, November 23 | predictability too low |
| Day 8 | Monday, November 24 | predictability too low |
ZCZC SPCSWOD48 ALL ACUS48 KWNS 170907 SPC AC 170907
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0307 AM CST Mon Nov 17 2025
Valid 201200Z - 251200Z
DISCUSSION
Day 4/Thursday - Southern Plains to Mid-MS Valley
An upper trough over the Four Corners vicinity will eject east/northeast into the Plains on Thursday. Moderate southwesterly deep-layer flow will overspread portions of OK/TX toward the Ozarks as this occurs. Warm advection ahead of the trough, coincident with a weakening southerly low-level jet, will result in widespread showers and thunderstorms across the region early Thursday. This may temper destabilization despite rich boundary layer moisture. Meanwhile, a surface low will modestly deepen near the OK/KS border, and a north-south oriented cold front draped across west TX will develop eastward through the period, with a warm front extending west-east across central MO/southern IL. These boundaries may focus some risk for stronger storms within a weak to moderately unstable airmass. However, the magnitude of the severe risk still remains uncertain given potential for widespread and possibly heavy rainfall, somewhat weak low-level flow, and the weakening of the upper trough as it shifts east/northeast during the evening. Severe probabilities may become necessary is subsequent outlooks, but uncertainty remains too high to include a 15 percent delineation at this time.
Day 5/Fri - Mid/Lower MS and OH/TN Valley vicinity
The surface cold front will continue to develop east/southeast across the region on Friday/Friday night. Some low-end severe potential could persist given rich boundary layer moisture and at least modest buoyancy ahead of the front. However, persistent rainfall and a weakening upper trough with veering/boundary-parallel deep-layer flow will likely limit storm intensity.
Days 6-8/Sat-Mon
Spread among forecast guidance increases late in the period and forecast confidence is low. However, most guidance depicts some version of an upper trough/low over the Southwest ejecting east toward the Plains, but the differences in timing/intensity, etc limit predictability. Some increase in severe potential could return to portions of the southern Plains depending on how this potential trough evolves and guidance trends will be monitored.
..Leitman.. 11/17/2025
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