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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.
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| Day 4 | Monday, November 2 | 15% |
| Day 5 | Tuesday, November 3 | predictability too low |
| Day 6 | Wednesday, November 4 | predictability too low |
| Day 7 | Thursday, November 5 | predictability too low |
| Day 8 | Friday, November 6 | potential too low |
ZCZC SPCSWOD48 ALL ACUS48 KWNS 300859 SPC AC 300859
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0359 AM CDT Fri Oct 30 2026
Valid 021200Z - 071200Z
DISCUSSION
A large positive-tilt upper trough will move into the Plains on Monday/D4, with a surface low moving from the central Plains into the Upper MS Valley. A substantial low-level moisture plume with mid 60s F dewpoints will spread north ahead of the developing low and cold front, aided by 40+ kt south/southwest 850 mb winds. The main severe threat should develop during the afternoon along the cold front, where MUCAPE on the order of 1000 J/kg will be likely. Effective deep-layer shear will be near 50 kt, with sufficient low-level turning with height to support both supercells and linear structures late. Damaging winds and perhaps a couple tornadoes will be possible, with sporadic large hail as well.
By Tue/D5, the trough is forecast to become more amplified, with more of a meridional flow pattern aloft spreading across the MS Valley. Substantial rain and thunderstorms are likely along the cold front and elongated surface trough. There is some potential for damaging winds/bows from eastern TX into AR, LA, and MS, but substantial uncertainty exists given marginal instability and widespread clouds/precip.
This system will generally swing eastward across the southeastern states from Wed/D6 into Thu/D7, with at least low-end potential over some of the Gulf Coast states.
..Jewell.. 10/30/2026
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