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Isolated severe storms capable of hail and gusty winds are possible mainly this evening across northern/eastern Missouri into south-central Illinois.
← back to overviewSPC AC 031629
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1129 AM CDT Sun May 03 2026
Valid 031630Z - 041200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE MIDDLE MISSISSIPPI VALLEY
### SUMMARY
Isolated severe storms capable of hail and gusty winds are possible mainly this evening across northern/eastern Missouri into south-central Illinois.
Northern/eastern Missouri into south-central Illinois
Airmass modification and modest-caliber moist advection will occur north-northeastward into the region along and south of a decelerating southeastward-moving front. The limited low-level moisture, coupled with strong heating and mixing, should keep the airmass across the region capped through the afternoon. However, toward/after sunset, sufficient moistening atop the decoupling boundary layer should support increasing thunderstorm development this evening. Convection will tend to be rooted around 750-850 mb, and while elevated buoyancy will not be robust, the steep lapse rates could yield some severe hail (and possibly gusty winds) in the presence of 40+ kt shear through the cloud-bearing layer.
Far South Florida
While a couple of strong storms could occur through the afternoon, cloud cover and an increasingly prevalent post-frontal regime, along with weak lapse rates in the cloud-bearing layer, should tend to limit storm intensity inland.
Northern California/southwest Oregon
Thunderstorms are expected along the northern periphery of the upper low off the central California coast. Increasing mid-level moisture and cold mid-level temperatures will support modest buoyancy amid moderate easterly flow aloft, supporting the potential for small hail and gusty winds with these westward progressing storms during the late afternoon and early evening. However, organized severe storm potential is expected to remain low.
..Guyer/Chalmers.. 05/03/2026
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
Strong to severe thunderstorms are possible across portions of the Midwest late Monday afternoon into Monday night.
← back to overviewSPC AC 031724
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1224 PM CDT Sun May 03 2026
Valid 041200Z - 051200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDWEST
### SUMMARY
Strong to severe thunderstorms are possible across portions of the Midwest late Monday afternoon into Monday night.
Synopsis
A split upper-level flow pattern is expected on Monday. A broad trough across the northern Plains/Upper Midwest will eventually sag southward late in the period. Another trough will move into the lower Colorado Valley. A stronger cold front will move into the Great Lakes/Midwest/southern Plains late afternoon into the overnight. A surface low and attendant dryline is forecast within the central/southern Plains.
Eastern Kansas into Mid-Mississippi Valley
Forcing for ascent will remain weak/nebulous across the region until after 00Z. A stalled weak boundary within central Missouri may serve as a potential area for storm initiation during the afternoon. Low-level convergence would be weak and development remains uncertain. Afternoon develop could pose a greater hail risk with steep mid-level lapse rates and 35-40 kt of effective shear. Development along the front is not expected to occur until 00Z or later as mid-level height falls and the low-level jet increases. Storms would be initially capable of large hail, but increasing coverage and interaction should eventually yield upscale growth. Damaging winds should become the primary threat with time. A locally greater severe risk could develop should a small MCS develop during the evening. There is significant spread in guidance on where this could occur and the late timing of this suggests nocturnal stabilization could also limit the potential for strong/damaging surface gusts.
Lower Great Lakes Vicinity
Moisture will be more limited with northeastward extent. Daytime heating may be enough to initiate a few storms along the surface boundary during the afternoon. However, a more probable scenario is that greater storm development will occur as large-scale forcing increases during the evening. Modest shear and buoyancy will limit the overall severe threat, but damaging winds and isolated large hail are possible.
Oklahoma into south-central Kansas
There is a general agreement within current guidance that a surface low will deepen in western Kansas/Oklahoma. A triple point is expected to be located in central Kansas. Despite greater surface moisture than areas farther northeast, lack of large-scale forcing will keep capping in place near the surface low and southward along the dryline in Oklahoma. That said, there will be a strong dryline circulation with temperatures in the upper 80s/low 90s F to the west. Models indicate attempts at convection along the dryline, but confidence in sustained activity remains quite low. A risk for severe weather would exist if storms can develop and persist.
..Wendt.. 05/03/2026
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0600Z
Isolated to scattered strong to severe storms are possible Tuesday afternoon and evening across portions of eastern Oklahoma and northeast Texas into the Mid-South.
← back to overviewSPC AC 030646
Day 3 Convective Outlook CORR 1 NWS Storm Prediction Center Norman OK 0146 AM CDT Sun May 03 2026
Valid 051200Z - 061200Z
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF EASTERN OKLAHOMA…NORTHEAST TEXAS…AND ARKANSAS
CORRECTED FOR SUMMARY
SUMMARY
Isolated to scattered strong to severe storms are possible Tuesday afternoon and evening across portions of eastern Oklahoma and northeast Texas into the Mid-South.
Synopsis
Deep-layer southwesterly flow will increase across the southern Plains to the Ohio Valley and Northeast as the upper trough over the Upper Midwest and northern/central Plains and an upper trough over the Southwest begin to phase. At the surface, a cold front is forecast to extend from southern Lower MI to northern OK Tuesday morning. This boundary will develop slowly southeast through the period, becoming oriented from NY to the Mid-South to north-central TX by Wednesday morning. During the afternoon, a dryline will be oriented across central TX. Ahead of the surface front and east of the dryline, increasing southerly low-level flow will transport 60s F dewpoints across the Sabine Valley into AR. The surface front and dryline will serve as a focus for strong to severe thunderstorm development during the afternoon/evening.
OK/TX to the Mid-South
Convective development is likely near the surface triple point and cold front by 00z as forcing for ascent impinges on the moist and moderately unstable airmass in the eastern OK/AR vicinity. Thunderstorm coverage will likely increase through the evening as a modest low-level jet develops. Any discrete convection that develops will pose a risk for large hail and perhaps a tornado or two. However, convection may become linear along the surface front rather quickly, with an accompanying increase in damaging wind potential.
Severe potential along the dryline across parts of OK/TX is more uncertain/conditional. Capping and nebulous large-scale ascent (especially with southwest extent across TX) may suppress convection. However, if a storm can develop within the favorable thermodynamic and kinematic parameter space, large hail will be possible.
..Leitman.. 05/03/2026
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 | Wednesday, May 6 | 15% |
| Day 5 | Thursday, May 7 | predictability too low |
| Day 6 | Friday, May 8 | predictability too low |
| Day 7 | Saturday, May 9 | predictability too low |
| Day 8 | Sunday, May 10 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 030750 SPC AC 030750
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0250 AM CDT Sun May 03 2026
Valid 061200Z - 111200Z
DISCUSSION
Day 4/Wed – East TX to the Lower MS and TN Valley vicinity
Strong southwesterly deep-layer flow will overspread the region ahead of an upper trough pivoting east across the Plains toward the Mid-MS Valley. At the surface, a cold front will be oriented from the OH Valley to southern AR and central TX. Ahead of the front, rich Gulf moisture will be in place across southern and eastern TX into the Lower MS Valley eastward toward AL. Moderate to strong destabilization is expected across the warm sector ahead of the southward-sagging cold front. Supercell wind profiles are evident in forecast soundings. However, given linear forcing along the front and deep-layer flow largely parallel to the boundary, it is uncertain if discrete storms will be possible. Nevertheless, severe potential is still expected with clusters and linear segments given the favorable thermodynamic environment and strong vertical shear.
Day 5/Thu - South TX and parts of the Southeast
Some severe potential could persist into Thursday across south TX as the cold front continues to develop southward across a very moist and unstable airmass. However, large-scale ascent may be limited as forcing associated with the eastern U.S. upper trough focuses well northeast of the region. Shortwave upper ridging also may overspread region ahead of an upper low/trough over northwest Mexico.
Additional strong or severe storms will be possible across parts of the Southeast toward the Carolinas and Mid-Atlantic as the cold front shifts east across that region. However, widespread showers/thunderstorms and cloud cover may limit destabilization, and convection could become anafrontal by this time.
Days 6-8/Fri-Sun
Spread beings to increase across model guidance by the weekend, though mean upper troughing across the East seems likely to persist. This typically would not be ideal for severe potential. However, an upper shortwave trough is forecast to move across the southern Rockies into the southern Plains. Forecast guidance varies widely with the timing and evolution of these features however, and predictability is low.
..Leitman.. 05/03/2026
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 | Wednesday, May 6 | 15% |
| Day 5 | Thursday, May 7 | predictability too low |
| Day 6 | Friday, May 8 | predictability too low |
| Day 7 | Saturday, May 9 | predictability too low |
| Day 8 | Sunday, May 10 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 030750 SPC AC 030750
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0250 AM CDT Sun May 03 2026
Valid 061200Z - 111200Z
DISCUSSION
Day 4/Wed – East TX to the Lower MS and TN Valley vicinity
Strong southwesterly deep-layer flow will overspread the region ahead of an upper trough pivoting east across the Plains toward the Mid-MS Valley. At the surface, a cold front will be oriented from the OH Valley to southern AR and central TX. Ahead of the front, rich Gulf moisture will be in place across southern and eastern TX into the Lower MS Valley eastward toward AL. Moderate to strong destabilization is expected across the warm sector ahead of the southward-sagging cold front. Supercell wind profiles are evident in forecast soundings. However, given linear forcing along the front and deep-layer flow largely parallel to the boundary, it is uncertain if discrete storms will be possible. Nevertheless, severe potential is still expected with clusters and linear segments given the favorable thermodynamic environment and strong vertical shear.
Day 5/Thu - South TX and parts of the Southeast
Some severe potential could persist into Thursday across south TX as the cold front continues to develop southward across a very moist and unstable airmass. However, large-scale ascent may be limited as forcing associated with the eastern U.S. upper trough focuses well northeast of the region. Shortwave upper ridging also may overspread region ahead of an upper low/trough over northwest Mexico.
Additional strong or severe storms will be possible across parts of the Southeast toward the Carolinas and Mid-Atlantic as the cold front shifts east across that region. However, widespread showers/thunderstorms and cloud cover may limit destabilization, and convection could become anafrontal by this time.
Days 6-8/Fri-Sun
Spread beings to increase across model guidance by the weekend, though mean upper troughing across the East seems likely to persist. This typically would not be ideal for severe potential. However, an upper shortwave trough is forecast to move across the southern Rockies into the southern Plains. Forecast guidance varies widely with the timing and evolution of these features however, and predictability is low.
..Leitman.. 05/03/2026
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 | Wednesday, May 6 | 15% |
| Day 5 | Thursday, May 7 | predictability too low |
| Day 6 | Friday, May 8 | predictability too low |
| Day 7 | Saturday, May 9 | predictability too low |
| Day 8 | Sunday, May 10 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 030750 SPC AC 030750
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0250 AM CDT Sun May 03 2026
Valid 061200Z - 111200Z
DISCUSSION
Day 4/Wed – East TX to the Lower MS and TN Valley vicinity
Strong southwesterly deep-layer flow will overspread the region ahead of an upper trough pivoting east across the Plains toward the Mid-MS Valley. At the surface, a cold front will be oriented from the OH Valley to southern AR and central TX. Ahead of the front, rich Gulf moisture will be in place across southern and eastern TX into the Lower MS Valley eastward toward AL. Moderate to strong destabilization is expected across the warm sector ahead of the southward-sagging cold front. Supercell wind profiles are evident in forecast soundings. However, given linear forcing along the front and deep-layer flow largely parallel to the boundary, it is uncertain if discrete storms will be possible. Nevertheless, severe potential is still expected with clusters and linear segments given the favorable thermodynamic environment and strong vertical shear.
Day 5/Thu - South TX and parts of the Southeast
Some severe potential could persist into Thursday across south TX as the cold front continues to develop southward across a very moist and unstable airmass. However, large-scale ascent may be limited as forcing associated with the eastern U.S. upper trough focuses well northeast of the region. Shortwave upper ridging also may overspread region ahead of an upper low/trough over northwest Mexico.
Additional strong or severe storms will be possible across parts of the Southeast toward the Carolinas and Mid-Atlantic as the cold front shifts east across that region. However, widespread showers/thunderstorms and cloud cover may limit destabilization, and convection could become anafrontal by this time.
Days 6-8/Fri-Sun
Spread beings to increase across model guidance by the weekend, though mean upper troughing across the East seems likely to persist. This typically would not be ideal for severe potential. However, an upper shortwave trough is forecast to move across the southern Rockies into the southern Plains. Forecast guidance varies widely with the timing and evolution of these features however, and predictability is low.
..Leitman.. 05/03/2026
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 | Wednesday, May 6 | 15% |
| Day 5 | Thursday, May 7 | predictability too low |
| Day 6 | Friday, May 8 | predictability too low |
| Day 7 | Saturday, May 9 | predictability too low |
| Day 8 | Sunday, May 10 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 030750 SPC AC 030750
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0250 AM CDT Sun May 03 2026
Valid 061200Z - 111200Z
DISCUSSION
Day 4/Wed – East TX to the Lower MS and TN Valley vicinity
Strong southwesterly deep-layer flow will overspread the region ahead of an upper trough pivoting east across the Plains toward the Mid-MS Valley. At the surface, a cold front will be oriented from the OH Valley to southern AR and central TX. Ahead of the front, rich Gulf moisture will be in place across southern and eastern TX into the Lower MS Valley eastward toward AL. Moderate to strong destabilization is expected across the warm sector ahead of the southward-sagging cold front. Supercell wind profiles are evident in forecast soundings. However, given linear forcing along the front and deep-layer flow largely parallel to the boundary, it is uncertain if discrete storms will be possible. Nevertheless, severe potential is still expected with clusters and linear segments given the favorable thermodynamic environment and strong vertical shear.
Day 5/Thu - South TX and parts of the Southeast
Some severe potential could persist into Thursday across south TX as the cold front continues to develop southward across a very moist and unstable airmass. However, large-scale ascent may be limited as forcing associated with the eastern U.S. upper trough focuses well northeast of the region. Shortwave upper ridging also may overspread region ahead of an upper low/trough over northwest Mexico.
Additional strong or severe storms will be possible across parts of the Southeast toward the Carolinas and Mid-Atlantic as the cold front shifts east across that region. However, widespread showers/thunderstorms and cloud cover may limit destabilization, and convection could become anafrontal by this time.
Days 6-8/Fri-Sun
Spread beings to increase across model guidance by the weekend, though mean upper troughing across the East seems likely to persist. This typically would not be ideal for severe potential. However, an upper shortwave trough is forecast to move across the southern Rockies into the southern Plains. Forecast guidance varies widely with the timing and evolution of these features however, and predictability is low.
..Leitman.. 05/03/2026
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 | Wednesday, May 6 | 15% |
| Day 5 | Thursday, May 7 | predictability too low |
| Day 6 | Friday, May 8 | predictability too low |
| Day 7 | Saturday, May 9 | predictability too low |
| Day 8 | Sunday, May 10 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 030750 SPC AC 030750
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0250 AM CDT Sun May 03 2026
Valid 061200Z - 111200Z
DISCUSSION
Day 4/Wed – East TX to the Lower MS and TN Valley vicinity
Strong southwesterly deep-layer flow will overspread the region ahead of an upper trough pivoting east across the Plains toward the Mid-MS Valley. At the surface, a cold front will be oriented from the OH Valley to southern AR and central TX. Ahead of the front, rich Gulf moisture will be in place across southern and eastern TX into the Lower MS Valley eastward toward AL. Moderate to strong destabilization is expected across the warm sector ahead of the southward-sagging cold front. Supercell wind profiles are evident in forecast soundings. However, given linear forcing along the front and deep-layer flow largely parallel to the boundary, it is uncertain if discrete storms will be possible. Nevertheless, severe potential is still expected with clusters and linear segments given the favorable thermodynamic environment and strong vertical shear.
Day 5/Thu - South TX and parts of the Southeast
Some severe potential could persist into Thursday across south TX as the cold front continues to develop southward across a very moist and unstable airmass. However, large-scale ascent may be limited as forcing associated with the eastern U.S. upper trough focuses well northeast of the region. Shortwave upper ridging also may overspread region ahead of an upper low/trough over northwest Mexico.
Additional strong or severe storms will be possible across parts of the Southeast toward the Carolinas and Mid-Atlantic as the cold front shifts east across that region. However, widespread showers/thunderstorms and cloud cover may limit destabilization, and convection could become anafrontal by this time.
Days 6-8/Fri-Sun
Spread beings to increase across model guidance by the weekend, though mean upper troughing across the East seems likely to persist. This typically would not be ideal for severe potential. However, an upper shortwave trough is forecast to move across the southern Rockies into the southern Plains. Forecast guidance varies widely with the timing and evolution of these features however, and predictability is low.
..Leitman.. 05/03/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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