Hayley here - Do you want to see severe weather in your calendar?
* it's like an add-on for your digital calendar NOT a paper calendar
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 | Saturday, May 30 | predictability too low |
| Day 5 | Sunday, May 31 | predictability too low |
| Day 6 | Monday, June 1 | predictability too low |
| Day 7 | Tuesday, June 2 | potential too low |
| Day 8 | Wednesday, June 3 | potential too low |
ZCZC SPCSWOD48 ALL ACUS48 KWNS 270746 SPC AC 270746
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0246 AM CDT Wed May 27 2026
Valid 301200Z - 041200Z
DISCUSSION
On Saturday/D4, an upper low will weaken as it moves from UT into WY, with midlevel wind speeds at or below 25 kt across the northern Rockies/Plains. This feature will persist into Sunday/D5 and Monday/D6 as it moves toward MT and eventually into Canada. Given the weak winds aloft, severe potential should be relatively low, but isolated strong storms may occur over parts of the northern Plains.
Farther south, stronger instability is forecast over the southern and central Plains, where 60s to lower 70s F dewpoints will exist. Although unstable, shear will be quite weak. Saturday/D4 may hold slightly greater severe potential compared to other days, as the southern lobe of the western trough lifts north out of the southern/central Plains. However, shear will still be marginal, and the likelihood antecedent precip/outflows lessens predictability in the weak forcing pattern. The stronger instability air mass appear most prominent through about Monday/D6. Thereafter, an upper trough may amplify over the eastern CONUS, driving high pressure south across the eastern CONUS/MS Valley.
..Jewell.. 05/27/2026
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