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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 | Monday, October 20 | predictability too low |
Day 5 | Tuesday, October 21 | potential too low |
Day 6 | Wednesday, October 22 | potential too low |
Day 7 | Thursday, October 23 | predictability too low |
Day 8 | Friday, October 24 | predictability too low |
ZCZC SPCSWOD48 ALL ACUS48 KWNS 170847 SPC AC 170847
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0347 AM CDT Fri Oct 17 2025
Valid 201200Z - 251200Z
DISCUSSION
Northeast Day 4/Monday
As the strong upper trough moves from the OH Valley and Appalachians into the Northeast, low-end severe potential remains possible ahead of the cold front D4/Monday over parts of New England. Confined to a narrow warm sector with modest moisture but strong low-level wind fields, shallow convection could support isolated damaging gusts before the front moves offshore by mid afternoon.
Rest of US
As the strong eastern US trough and low move into the Atlantic early next week, offshore flow should limit available moisture and buoyancy for much of the CONUS. A mid-level low moving into the Southwest and the southern Plains mid to late week could support some thunderstorms activity toward the end of the forecast period. However, uncertainty remains very high with model guidance suggesting limited moisture return and poor overlap with stronger vertical shear. Thus, predictability remains too low for severe probabilities through the extended forecast period.
..Lyons.. 10/17/2025
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