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* stats delayed and were probably not accurate to begin with
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 | Wednesday, January 21 | potential too low |
| Day 5 | Thursday, January 22 | potential too low |
| Day 6 | Friday, January 23 | potential too low |
| Day 7 | Saturday, January 24 | potential too low |
| Day 8 | Sunday, January 25 | potential too low |
ZCZC SPCSWOD48 ALL ACUS48 KWNS 180845 SPC AC 180845
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0245 AM CST Sun Jan 18 2026
Valid 211200Z - 261200Z
DISCUSSION
A large-scale upper trough will develop eastward across the Plains and eastern U.S. on Days 4-5/Wed-Thu. As this occurs, some modest Gulf moisture will spread across east TX toward the Lower MS Valley ahead of a cold front. Some low potential for thunderstorms will be possible, but the modest moisture return will limit instability and severe potential is low.
Beyond Day 5/Thu, forecast guidance is not in very good agreement with large spread resulting in greater than normal uncertainty. The control member of the ECMWF appears to be an outlier, showing some increasing severe potential across the Gulf Coast states toward the end of the forecast period. However, the GFS and EC-AIFS keep any Gulf moisture offshore, precluding severe potential. Given these large model discrepancies, severe probabilities seem low for now.
..Leitman.. 01/18/2026
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