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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:
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| Day 4 | Friday, June 19 | predictability too low |
| Day 5 | Saturday, June 20 | 15% |
| Day 6 | Sunday, June 21 | predictability too low |
| Day 7 | Monday, June 22 | predictability too low |
| Day 8 | Tuesday, June 23 | predictability too low |
ZCZC SPCSWOD48 ALL ACUS48 KWNS 160753 SPC AC 160753
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0253 AM CDT Tue Jun 16 2026
Valid 191200Z - 241200Z
DISCUSSION
Day 4/Fri - Carolinas
A very moist airmass will be in place across the Carolinas vicinity on Friday. Medium range guidance varies in the evolution of a surface front across the region. However, widespread convection is likely to be ongoing Friday morning somewhere across the Southeast. This will likely temper downstream destabilization and severe potential is uncertain.
Day 5/Sat - Central Plains
Upper ridging over the Plains will break down on Saturday as an upper shortwave impulse ejects from the central Rockies toward the Mid-MO Valley. At the same time, lee surface low development over the central High Plains will strengthen south/southeasterly low-level flow and rich Gulf moisture will quickly stream northward across portions of KS/NE. Moderate to strong destabilization amid strengthening west/northwesterly flow aloft will support severe thunderstorm development from late afternoon into the overnight hours.
Days 6-8/Sun-Tue
Spread among forecast guidance increases late in the forecast period. However, the general consensus is for weakening flow aloft and upper ridging building across the western U.S. Overall, predictability is low for early next week.
..Leitman.. 06/16/2026
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