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Isolated to scattered storms are possible across the Carolinas and southern Mid-Atlantic, as well as New England this afternoon and early evening, with damaging winds as the primary concern. Isolated strong to severe wind gusts are also possible in the central High Plains and central Oregon.
← back to overviewSPC AC 221250
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0750 AM CDT Wed Jul 22 2026
Valid 221300Z - 231200Z
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE SOUTHERN MID-ATLANTIC AND MAINE
### SUMMARY
Isolated to scattered storms are possible across the Carolinas and southern Mid-Atlantic, as well as New England this afternoon and early evening, with damaging winds as the primary concern. Isolated strong to severe wind gusts are also possible in the central High Plains and central Oregon.
Carolinas/Mid-Atlantic
The region will influenced by the base of the eastern CONUS trough and moderately strong belt of cyclonically curved westerlies, although subtle mid-level warming is expected across the Carolinas and southern Virginia. Storm redevelopment and re-intensification today will tend to favor a persistent west-east zone of pre-frontal convergence and existing convection across southern Virginia and northern North Carolina, with additional development possible this afternoon farther north closer to the southeastward-moving cold front. Cloud breaks and a moisture-rich environment will support moderate destabilization this afternoon. Around 30-40 kt of effective shear will support some organized clusters and conditionally support some supercells, especially with somewhat stronger wind profiles with northward extent across southern/eastern Virginia toward the Delmarva. Damaging winds are the most probable severe hazard regionally, but some tornado risk may exist as well.
New England
A shortwave trough/moderately strong mid-level jet streak will be favorably timed with diurnal destabilization during the afternoon, particularly for New Hampshire into Maine. As the cold front progresses eastward, scattered storms are expected to develop. Effective shear of 30-40 kt and strong upper-level winds will support the possibility of some supercells aside from organized multicells. Damaging winds, marginally severe hail, and perhaps a tornado are all possible this afternoon until around sunset.
Central High Plains
Southeasterly surface winds will combine with increasingly westerly/northwesterly flow aloft to promote modest deep-layer shear (around 30 kt 0-6 km) during the afternoon/evening. The development of a weak lee low and low-level moisture moving northwest around the Midwest anticyclone will aid in storm development within the region. Temperature-dewpoint spreads at the surface will allow for efficient outflow production. A strengthening southeasterly low-level jet across western Kansas may also help maintain convection farther east during the evening. Severe wind gusts are possible with this activity.
Oregon
Weak height falls will influence the region via an upper low off the coastal Pacific Northwest. Modest large-scale ascent and diurnal heating/orographic influences will contribute to thunderstorm development across central Oregon during the afternoon. Large temperature-dewpoint spreads will promote a risk for strong to severe wind gusts despite relatively limited overall buoyancy and vertical shear.
Gulf Coast
Tropical Storm Bertha will continue to slowly drift westward across the northern Gulf of America, grazing the southern Louisiana coast through tonight. Several factors suggest that inland/near-shore supercell potential will remain limited including an expected gradual weakening of Bertha and poor thermal profiles inland where southerly low-level winds will develop toward the coast on its eastern periphery.
..Guyer/Broyles.. 07/22/2026
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z
Severe thunderstorm potential appears low on Thursday. However, locally gusty winds could occur with thunderstorms across the central High Plains.
← back to overviewSPC AC 220520
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1220 AM CDT Wed Jul 22 2026
Valid 231200Z - 241200Z
NO SEVERE THUNDERSTORM AREAS FORECAST
### SUMMARY
Severe thunderstorm potential appears low on Thursday. However, locally gusty winds could occur with thunderstorms across the central High Plains.
Discussion
In the mean, an amplified upper ridge will persist across he West, with the subtropical high over TX shifting west toward the Four Corners vicinity through the period. An upper shortwave trough embedded within the eastern periphery of the upper ridge will migrate southeast from the central Rockies to the Mid/Lower MO Valley through early Friday morning.
Southerly low-level flow across the Plains will result in a belt of modest boundary-layer moisture across the central High Plains. Steep midlevel lapse rates will foster weak instability across parts of WY/CO into western KS. Scattered thunderstorms will develop during the afternoon and spread east/southeast across the central High Plains. A deeply mixed boundary layer will support isolated strong outflow gusts. However, weak vertical shear and limited instability will preclude severe probabilities at this time.
..Leitman.. 07/22/2026
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
Isolated severe thunderstorms are possible on Friday across portions of eastern North Dakota into northern Minnesota.
← back to overviewSPC AC 220606
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0106 AM CDT Wed Jul 22 2026
Valid 241200Z - 251200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF EASTERN NORTH DAKOTA AND NORTHERN MINNESOTA
### SUMMARY
Isolated severe thunderstorms are possible on Friday across portions of eastern North Dakota into northern Minnesota.
North Dakota/Minnesota
An upper shortwave trough will develop southeast from the Canadian Prairies toward the Great Lakes on Friday. This will result in some enhancement of northwesterly flow aloft across the region. At the surface, low pressure will move from northern Manitoba into Quebec and a trailing cold front will drop southeast across ND and northern MN. Southerly low-level flow ahead of the front will transport low to mid 60s F dewpoints across parts of the eastern Dakotas and MN. A plume of steepening midlevel lapse rates will overspread the region, supporting 1000-2000 J/kg MLCAPE. Vertically veering wind profiles, with 30-50 kt northwesterly flow between 700-500 mb will support effective shear magnitudes greater than 40 kt. Isolated thunderstorms are expected to develop by late afternoon/early evening near the surface front. Wind profiles suggest supercells will be possible. Forecast soundings indicate some areas may maintain weak to moderate capping, which may preclude surface-based convection. However, elevated storms will pose a risk for isolated large hail. If thunderstorms are surface-based, a risk for strong gusts and tornado would also be possible.
..Leitman.. 07/22/2026
CLICK TO GET WUUS03 PTSDY3 PRODUCT
NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 1930Z
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, July 25 | predictability too low |
| Day 5 | Sunday, July 26 | predictability too low |
| Day 6 | Monday, July 27 | predictability too low |
| Day 7 | Tuesday, July 28 | predictability too low |
| Day 8 | Wednesday, July 29 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 220726 SPC AC 220726
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CDT Wed Jul 22 2026
Valid 251200Z - 301200Z
DISCUSSION
Upper Midwest to Ohio Valley and Mid-Atlantic
An upper ridge centered over the High Plains will persist through the middle of next week. Meanwhile, upper troughing will be maintained over the eastern U.S. Periods of enhanced northwesterly flow aloft are expected across parts of the Upper Midwest/Great Lakes into parts of the Ohio Valley and Mid-Atlantic on the eastern periphery of the Plains upper ridge. Several shortwave impulses are forecast to develop southeast from Canada within this northwest flow regime. This could support daily severe thunderstorm chances from the Upper Midwest into the Ohio Valley, and possibly the Mid-Atlantic. However, the timing of these features is uncertain, and midlevel capping could limit the spatial extent of severe potential. It is likely that portions of the Upper Midwest into the Ohio Valley will need severe probabilities in later outlooks, particularly for Day 4-6/Sat-Mon, and possibly the mid-Atlantic by Day 7/Tue. However, confidence in where this risk will develop each day is too low for 15 percent delineation at this time.
..Leitman.. 07/22/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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, July 25 | predictability too low |
| Day 5 | Sunday, July 26 | predictability too low |
| Day 6 | Monday, July 27 | predictability too low |
| Day 7 | Tuesday, July 28 | predictability too low |
| Day 8 | Wednesday, July 29 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 220726 SPC AC 220726
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CDT Wed Jul 22 2026
Valid 251200Z - 301200Z
DISCUSSION
Upper Midwest to Ohio Valley and Mid-Atlantic
An upper ridge centered over the High Plains will persist through the middle of next week. Meanwhile, upper troughing will be maintained over the eastern U.S. Periods of enhanced northwesterly flow aloft are expected across parts of the Upper Midwest/Great Lakes into parts of the Ohio Valley and Mid-Atlantic on the eastern periphery of the Plains upper ridge. Several shortwave impulses are forecast to develop southeast from Canada within this northwest flow regime. This could support daily severe thunderstorm chances from the Upper Midwest into the Ohio Valley, and possibly the Mid-Atlantic. However, the timing of these features is uncertain, and midlevel capping could limit the spatial extent of severe potential. It is likely that portions of the Upper Midwest into the Ohio Valley will need severe probabilities in later outlooks, particularly for Day 4-6/Sat-Mon, and possibly the mid-Atlantic by Day 7/Tue. However, confidence in where this risk will develop each day is too low for 15 percent delineation at this time.
..Leitman.. 07/22/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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, July 25 | predictability too low |
| Day 5 | Sunday, July 26 | predictability too low |
| Day 6 | Monday, July 27 | predictability too low |
| Day 7 | Tuesday, July 28 | predictability too low |
| Day 8 | Wednesday, July 29 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 220726 SPC AC 220726
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CDT Wed Jul 22 2026
Valid 251200Z - 301200Z
DISCUSSION
Upper Midwest to Ohio Valley and Mid-Atlantic
An upper ridge centered over the High Plains will persist through the middle of next week. Meanwhile, upper troughing will be maintained over the eastern U.S. Periods of enhanced northwesterly flow aloft are expected across parts of the Upper Midwest/Great Lakes into parts of the Ohio Valley and Mid-Atlantic on the eastern periphery of the Plains upper ridge. Several shortwave impulses are forecast to develop southeast from Canada within this northwest flow regime. This could support daily severe thunderstorm chances from the Upper Midwest into the Ohio Valley, and possibly the Mid-Atlantic. However, the timing of these features is uncertain, and midlevel capping could limit the spatial extent of severe potential. It is likely that portions of the Upper Midwest into the Ohio Valley will need severe probabilities in later outlooks, particularly for Day 4-6/Sat-Mon, and possibly the mid-Atlantic by Day 7/Tue. However, confidence in where this risk will develop each day is too low for 15 percent delineation at this time.
..Leitman.. 07/22/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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, July 25 | predictability too low |
| Day 5 | Sunday, July 26 | predictability too low |
| Day 6 | Monday, July 27 | predictability too low |
| Day 7 | Tuesday, July 28 | predictability too low |
| Day 8 | Wednesday, July 29 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 220726 SPC AC 220726
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CDT Wed Jul 22 2026
Valid 251200Z - 301200Z
DISCUSSION
Upper Midwest to Ohio Valley and Mid-Atlantic
An upper ridge centered over the High Plains will persist through the middle of next week. Meanwhile, upper troughing will be maintained over the eastern U.S. Periods of enhanced northwesterly flow aloft are expected across parts of the Upper Midwest/Great Lakes into parts of the Ohio Valley and Mid-Atlantic on the eastern periphery of the Plains upper ridge. Several shortwave impulses are forecast to develop southeast from Canada within this northwest flow regime. This could support daily severe thunderstorm chances from the Upper Midwest into the Ohio Valley, and possibly the Mid-Atlantic. However, the timing of these features is uncertain, and midlevel capping could limit the spatial extent of severe potential. It is likely that portions of the Upper Midwest into the Ohio Valley will need severe probabilities in later outlooks, particularly for Day 4-6/Sat-Mon, and possibly the mid-Atlantic by Day 7/Tue. However, confidence in where this risk will develop each day is too low for 15 percent delineation at this time.
..Leitman.. 07/22/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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, July 25 | predictability too low |
| Day 5 | Sunday, July 26 | predictability too low |
| Day 6 | Monday, July 27 | predictability too low |
| Day 7 | Tuesday, July 28 | predictability too low |
| Day 8 | Wednesday, July 29 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 220726 SPC AC 220726
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CDT Wed Jul 22 2026
Valid 251200Z - 301200Z
DISCUSSION
Upper Midwest to Ohio Valley and Mid-Atlantic
An upper ridge centered over the High Plains will persist through the middle of next week. Meanwhile, upper troughing will be maintained over the eastern U.S. Periods of enhanced northwesterly flow aloft are expected across parts of the Upper Midwest/Great Lakes into parts of the Ohio Valley and Mid-Atlantic on the eastern periphery of the Plains upper ridge. Several shortwave impulses are forecast to develop southeast from Canada within this northwest flow regime. This could support daily severe thunderstorm chances from the Upper Midwest into the Ohio Valley, and possibly the Mid-Atlantic. However, the timing of these features is uncertain, and midlevel capping could limit the spatial extent of severe potential. It is likely that portions of the Upper Midwest into the Ohio Valley will need severe probabilities in later outlooks, particularly for Day 4-6/Sat-Mon, and possibly the mid-Atlantic by Day 7/Tue. However, confidence in where this risk will develop each day is too low for 15 percent delineation at this time.
..Leitman.. 07/22/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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