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Thunderstorms capable of producing isolated hail, damaging winds, and perhaps a tornado may occur this afternoon and evening across parts of eastern Illinois into Indiana, western/central Kentucky, and middle Tennessee. Isolated severe thunderstorms are also possible across the east-central Florida Peninsula.
← back to overviewSPC AC 111630
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1030 AM CST Wed Nov 11 2026
Valid 111630Z - 121200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE LOWER OHIO AND WESTERN TENNESSEE VALLEYS…AS WELL AS ACROSS THE EAST-CENTRAL FLORIDA PENINSULA
### SUMMARY
Thunderstorms capable of producing isolated hail, damaging winds, and perhaps a tornado may occur this afternoon and evening across parts of eastern Illinois into Indiana, western/central Kentucky, and middle Tennessee. Isolated severe thunderstorms are also possible across the east-central Florida Peninsula.
Midwest/Lower Ohio Valley into Middle Tennessee
Recent satellite imagery shows a lead shortwave trough moving into northern IL, with another shortwave trough farther back northwest moving into the Mid MO Valley. Showers and thunderstorms are ongoing near the lead shortwave. Thunderstorm intensity has decreased over the last half hour or so as these storms move into an environment with less elevated buoyancy (as observed by the 12Z ILX sounding). The lead shortwave is forecast to continue eastward into the OH Valley while the second shortwave continues more southeastward into the Lower OH Valley vicinity. The surface low currently over the IA/IL border vicinity is forecast to progress eastward with the lead wave while an attendant cold front sweeps southeastward through the mid MS Valley/Mid-South, and lower OH Valley this afternoon and evening.
Increasing low-level moisture is anticipated ahead of this front, advecting northeastward into the region from the Ozarks/Mid-South region. Recent surface analysis shows the mid 50s dewpoints are still in northern AR, so there is some question as to how far northeastward the greater low-level moisture will reach before frontal passage. Current expectation is for the best overlap between low-level moisture (and associated buoyancy) with the stronger large-scale ascent will occur across southern IN and adjacent western KY. Here, the combination of weak buoyancy (i.e. MLCAPE around 500-800 J/kg) and 30-40 kt of deep-layer shear oriented largely orthogonal to the surface cold front should support a mix of bowing clusters and supercells. Isolated hail and damaging gusts will be the primary risks. Hail is more likely with any more cellular activity and damaging gusts more likely with any fast-moving bowing segments. Modestly enhanced low-level shear may also support a low-probability tornado risk, but a tendency for low-level flow to veer to westerly should reduce effective SRH with time through the late afternoon/evening. The isolated severe risk should diminish with eastward extent this evening across the lower OH Valley as front outruns the low-level moisture and daytime heating wanes.
Central/Southern Florida Peninsula
Isolated to scattered thunderstorms are expected across the central/southern FL Peninsula this afternoon. Glancing large-scale ascent associated with a weak mid-level perturbation over the Southeast should aid this convective development. A warm layer around 700 mb could limit overall buoyancy, but 500 mb temperatures will be around -9 to -11 deg C and most forecast sounding still show 1500+ J/kg of uninhibited MLCAPE this afternoon. Moderate deep-layer shear will exists across the region as well. These conditions appear supportive of marginally severe hail and gusty winds within the stronger cores, which appear most probable along the east-central FL Coast.
..Mosier/Halbert-K.. 11/11/2026
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
No severe thunderstorms are forecast across the U.S. Thursday and Thursday night.
← back to overviewSPC AC 110641
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1241 AM CST Wed Nov 11 2026
Valid 121200Z - 131200Z
NO SEVERE THUNDERSTORM AREAS FORECAST
### SUMMARY
No severe thunderstorms are forecast across the U.S. Thursday and Thursday night.
DISCUSSION
An upper-level trough will move across the eastern U.S. on Thursday. Ahead of the trough, isolated thunderstorms will be possible in the morning and afternoon across parts of the Mid-Atlantic and far southern New England southward to near Cape Hatteras. Additional storms may form within a moist airmass over south Florida and along the immediate coast of southern California ahead of an approaching upper-level trough. No severe threat is forecast across the continental U.S. Thursday and Thursday night.
..Broyles.. 11/11/2026
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
No severe thunderstorms are forecast across the U.S. Friday and Friday night.
← back to overviewSPC AC 110827
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 AM CST Wed Nov 11 2026
Valid 131200Z - 141200Z
NO SEVERE THUNDERSTORM AREAS FORECAST
### SUMMARY
No severe thunderstorms are forecast across the U.S. Friday and Friday night.
DISCUSSION
An upper-level trough will move eastward across the Atlantic Coastal states Friday into Friday night, as a shortwave mid-level ridge moves into the High Plains. Further west, an upper-level trough will move onshore into the western U.S. on Friday. Thunderstorms will be possible ahead of this feature in parts of the Desert Southwest and near the trough along the coasts of northern California and southwest Oregon. No severe threat is forecast across the continental U.S. Friday and Friday night.
..Broyles.. 11/11/2026
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, November 14 | predictability too low |
| Day 5 | Sunday, November 15 | predictability too low |
| Day 6 | Monday, November 16 | predictability too low |
| Day 7 | Tuesday, November 17 | predictability too low |
| Day 8 | Wednesday, November 18 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 111000 SPC AC 111000
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0400 AM CST Wed Nov 11 2026
Valid 141200Z - 191200Z
DISCUSSION
Over the coming weekend, a mid-level shortwave trough will move from the Desert Southwest into the southern Plains. Ahead of the trough, moisture advection is forecast across much of Texas and Oklahoma, where surface dewpoints could increase into the 50s and 60s F. This would contribute to weak instability over parts of the southern Plains Sunday afternoon. Uncertainty exists on where the northern extent of the instability will be but it seems likely that enough instability will be in place by late Sunday afternoon for an isolated severe threat in parts of central and north Texas. As the system moves eastward across the Southeast from Monday to Wednesday, thunderstorms will be possible ahead of the trough each day from the central Gulf Coast to the Florida Peninsula. The best chance for an isolated severe threat would be on Wednesday over the Florida Peninsula where an unstable airmass is forecast as the trough passes.
..Broyles.. 11/11/2026
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, November 14 | predictability too low |
| Day 5 | Sunday, November 15 | predictability too low |
| Day 6 | Monday, November 16 | predictability too low |
| Day 7 | Tuesday, November 17 | predictability too low |
| Day 8 | Wednesday, November 18 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 111000 SPC AC 111000
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0400 AM CST Wed Nov 11 2026
Valid 141200Z - 191200Z
DISCUSSION
Over the coming weekend, a mid-level shortwave trough will move from the Desert Southwest into the southern Plains. Ahead of the trough, moisture advection is forecast across much of Texas and Oklahoma, where surface dewpoints could increase into the 50s and 60s F. This would contribute to weak instability over parts of the southern Plains Sunday afternoon. Uncertainty exists on where the northern extent of the instability will be but it seems likely that enough instability will be in place by late Sunday afternoon for an isolated severe threat in parts of central and north Texas. As the system moves eastward across the Southeast from Monday to Wednesday, thunderstorms will be possible ahead of the trough each day from the central Gulf Coast to the Florida Peninsula. The best chance for an isolated severe threat would be on Wednesday over the Florida Peninsula where an unstable airmass is forecast as the trough passes.
..Broyles.. 11/11/2026
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, November 14 | predictability too low |
| Day 5 | Sunday, November 15 | predictability too low |
| Day 6 | Monday, November 16 | predictability too low |
| Day 7 | Tuesday, November 17 | predictability too low |
| Day 8 | Wednesday, November 18 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 111000 SPC AC 111000
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0400 AM CST Wed Nov 11 2026
Valid 141200Z - 191200Z
DISCUSSION
Over the coming weekend, a mid-level shortwave trough will move from the Desert Southwest into the southern Plains. Ahead of the trough, moisture advection is forecast across much of Texas and Oklahoma, where surface dewpoints could increase into the 50s and 60s F. This would contribute to weak instability over parts of the southern Plains Sunday afternoon. Uncertainty exists on where the northern extent of the instability will be but it seems likely that enough instability will be in place by late Sunday afternoon for an isolated severe threat in parts of central and north Texas. As the system moves eastward across the Southeast from Monday to Wednesday, thunderstorms will be possible ahead of the trough each day from the central Gulf Coast to the Florida Peninsula. The best chance for an isolated severe threat would be on Wednesday over the Florida Peninsula where an unstable airmass is forecast as the trough passes.
..Broyles.. 11/11/2026
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, November 14 | predictability too low |
| Day 5 | Sunday, November 15 | predictability too low |
| Day 6 | Monday, November 16 | predictability too low |
| Day 7 | Tuesday, November 17 | predictability too low |
| Day 8 | Wednesday, November 18 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 111000 SPC AC 111000
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0400 AM CST Wed Nov 11 2026
Valid 141200Z - 191200Z
DISCUSSION
Over the coming weekend, a mid-level shortwave trough will move from the Desert Southwest into the southern Plains. Ahead of the trough, moisture advection is forecast across much of Texas and Oklahoma, where surface dewpoints could increase into the 50s and 60s F. This would contribute to weak instability over parts of the southern Plains Sunday afternoon. Uncertainty exists on where the northern extent of the instability will be but it seems likely that enough instability will be in place by late Sunday afternoon for an isolated severe threat in parts of central and north Texas. As the system moves eastward across the Southeast from Monday to Wednesday, thunderstorms will be possible ahead of the trough each day from the central Gulf Coast to the Florida Peninsula. The best chance for an isolated severe threat would be on Wednesday over the Florida Peninsula where an unstable airmass is forecast as the trough passes.
..Broyles.. 11/11/2026
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, November 14 | predictability too low |
| Day 5 | Sunday, November 15 | predictability too low |
| Day 6 | Monday, November 16 | predictability too low |
| Day 7 | Tuesday, November 17 | predictability too low |
| Day 8 | Wednesday, November 18 | predictability too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 111000 SPC AC 111000
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0400 AM CST Wed Nov 11 2026
Valid 141200Z - 191200Z
DISCUSSION
Over the coming weekend, a mid-level shortwave trough will move from the Desert Southwest into the southern Plains. Ahead of the trough, moisture advection is forecast across much of Texas and Oklahoma, where surface dewpoints could increase into the 50s and 60s F. This would contribute to weak instability over parts of the southern Plains Sunday afternoon. Uncertainty exists on where the northern extent of the instability will be but it seems likely that enough instability will be in place by late Sunday afternoon for an isolated severe threat in parts of central and north Texas. As the system moves eastward across the Southeast from Monday to Wednesday, thunderstorms will be possible ahead of the trough each day from the central Gulf Coast to the Florida Peninsula. The best chance for an isolated severe threat would be on Wednesday over the Florida Peninsula where an unstable airmass is forecast as the trough passes.
..Broyles.. 11/11/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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