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A couple of marginally severe thunderstorms are possible late this afternoon into the early evening across parts of the southern High Plains.
← back to overviewSPC AC 241614
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1114 AM CDT Thu Sep 24 2026
Valid 241630Z - 251200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE EASTERN TEXAS PANHANDLE…WESTERN OKLAHOMA…AND WESTERN KANSAS
### SUMMARY
A couple of marginally severe thunderstorms are possible late this afternoon into the early evening across parts of the southern High Plains.
TX Panhandle into northwest OK and southwest KS
An extensive plume of mid to upper level moisture currently extends from southern High Plains through central Plains into the eastern Dakotas and MN, evidenced by widespread cloudiness and embedded showers and isolated thunderstorms. This plume is supported by moderate southwesterly flow aloft between the upper ridging centered over the Middle/Upper TX coast and lower heights associated with an amplifying upper trough approaching the coastal Pacific Northwest.
Recent surface analysis shows a corridor of greater low-level moisture (characterized by mid to upper 60s dewpoints) extending from the TX Low Rolling Plains through the eastern TX and OK Panhandles into far southwest KS. Much of this corridor of greater low-level moisture is just east of the cloudiness (and cooler surface temperatures) associated with the mid/upper moisture plume. This region should continue to heat, with afternoon temperatures reaching the mid to upper 80s. Lapse rates are poor, but the warm temperatures and ample low-level moisture will still support MLCAPE from 1500 to 2000 J/kg. This buoyancy combined with low-level convergence (either on outflow from the ongoing showers or as a result of differential heating) will support isolated to scattered thunderstorms this afternoon and evening. Vertical shear will be weak across much of the region, and a largely disorganized storm mode is anticipated. However, a few water-loaded downbursts are possible with the strongest cells.
Slightly stronger large-scale forcing for ascent and vertical shear is expected into KS as a weak convectively augmented vorticity maximum moves trough. Isolated to widely scattered thunderstorms are possible here as well, although weaker buoyancy should limit overall intensity. Even so, a couple of weak supercells capable of isolated hail and/or damaging gusts may occur.
..Mosier/Chalmers.. 09/24/2026
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 2000Z
Severe thunderstorms are not expected Friday.
← back to overviewSPC AC 241728
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1228 PM CDT Thu Sep 24 2026
Valid 251200Z - 261200Z
NO SEVERE THUNDERSTORM AREAS FORECAST
### SUMMARY
Severe thunderstorms are not expected Friday.
Synopsis
A relatively benign mid-level flow pattern is forecast across much of the central US as a stacked upper low deepens off the east coast and a Pacific trough moves from WA/OR into the northern Rockies and southern Canada. Weak mid-level ridging will persist over the southern third of the CONUS as a broad and loosely organized extension of the Pacific trough moves northeastward over the Rockies and central High Plains. Mid-level flow aloft is forecast to remain weak over much of the CONUS.
A surface low will quickly deepen over the western Atlantic under the upper low supporting broad and cool low-level offshore flow for much of the East. To the west, the limited upper-level forcing will garner only modest ascent for surface lee troughing across the central and southern High Plains where an unseasonably moist air mass associated with remnant tropical/monsoon moisture will exist. Given PWATS of 1.5-2”, filtered diurnal heating should allow for weak destabilization (MLCAPE 500-1000 J/kg) Friday afternoon. Despite likely widespread shower and thunderstorm activity from the central Plains to the Southwest, lingering cloud cover, poor mid-level lapse rates, modest deep-layer vertical shear (20-30 kt) suggest little potential for organized storms. Episodic hail or damaging gusts cannot be ruled out from eastern NM into the TX Panhandle and far western OK where heating is likely to be more robust on the edge of the deeper tropospheric moisture. However, forecast confidence in organized severe storms remains low, and 5% probabilities will be withheld.
..Lyons.. 09/24/2026
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0600Z
Isolated severe hail and wind may accompany a few thunderstorms across portions of the southern Plains on Saturday.
← back to overviewSPC AC 240712
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0212 AM CDT Thu Sep 24 2026
Valid 261200Z - 271200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PORTIONS OF THE SOUTHERN PLAINS
### SUMMARY
Isolated severe hail and wind may accompany a few thunderstorms across portions of the southern Plains on Saturday.
Synopsis
A 500 mb cutoff low will meander off of the East Coast while relatively zonal flow prevails over the central U.S. and an upper trough impinges on the West Coast on Saturday. Surface lee troughing and continued southerly moisture advection will continue across the Plains states given persistent upper troughing to the west. Medium range guidance consensus depicts thunderstorm development, spurred by low-level warm-air advection and the approach of a subtle mid-level impulse across portions of the southern Plains. 7 C/km mid-level lapse rates atop low 60s F surface dewpoints will contribute to 1500-2000 J/kg MLCAPE. Furthermore, appreciable veering with height will yield over 30 kts of effective bulk shear via modestly curved and elongated hodographs. Multicells and supercells may develop, accompanied by an isolated severe wind/hail threat.
..Squitieri.. 09/24/2026
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 | Sunday, September 27 | potential too low |
| Day 5 | Monday, September 28 | predictability too low |
| Day 6 | Tuesday, September 29 | predictability too low |
| Day 7 | Wednesday, September 30 | predictability too low |
| Day 8 | Thursday, October 1 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 240826 SPC AC 240826
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0326 AM CDT Thu Sep 24 2026
Valid 271200Z - 021200Z
DISCUSSION
A mid-level cutoff low will meander along the East Coast and will gradually depart the region early next week as a mid-level trough amplifies over the Rockies and impinges on the central U.S. Medium range guidance consensus varies in the morphology of the upper trough. The 00Z GFS features a rapidly progressing upper wave over the Plains to the OH Valley Days 5-7 (Monday-Wednesday), while the 00Z Euro shows a mid-level trough evolving into a cut-off low that meanders over the Plains through the week. Both scenarios result in an appreciably strong surface low developing over the central Plains sometime mid next week, accompanied by near 70 F surface dewpoints and a buoyancy/vertical shear overlap supportive of a severe threat. However, too much variability in guidance precludes the delineation of severe probabilities this outlook.
..Squitieri.. 09/24/2026
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 | Sunday, September 27 | potential too low |
| Day 5 | Monday, September 28 | predictability too low |
| Day 6 | Tuesday, September 29 | predictability too low |
| Day 7 | Wednesday, September 30 | predictability too low |
| Day 8 | Thursday, October 1 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 240826 SPC AC 240826
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0326 AM CDT Thu Sep 24 2026
Valid 271200Z - 021200Z
DISCUSSION
A mid-level cutoff low will meander along the East Coast and will gradually depart the region early next week as a mid-level trough amplifies over the Rockies and impinges on the central U.S. Medium range guidance consensus varies in the morphology of the upper trough. The 00Z GFS features a rapidly progressing upper wave over the Plains to the OH Valley Days 5-7 (Monday-Wednesday), while the 00Z Euro shows a mid-level trough evolving into a cut-off low that meanders over the Plains through the week. Both scenarios result in an appreciably strong surface low developing over the central Plains sometime mid next week, accompanied by near 70 F surface dewpoints and a buoyancy/vertical shear overlap supportive of a severe threat. However, too much variability in guidance precludes the delineation of severe probabilities this outlook.
..Squitieri.. 09/24/2026
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 | Sunday, September 27 | potential too low |
| Day 5 | Monday, September 28 | predictability too low |
| Day 6 | Tuesday, September 29 | predictability too low |
| Day 7 | Wednesday, September 30 | predictability too low |
| Day 8 | Thursday, October 1 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 240826 SPC AC 240826
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0326 AM CDT Thu Sep 24 2026
Valid 271200Z - 021200Z
DISCUSSION
A mid-level cutoff low will meander along the East Coast and will gradually depart the region early next week as a mid-level trough amplifies over the Rockies and impinges on the central U.S. Medium range guidance consensus varies in the morphology of the upper trough. The 00Z GFS features a rapidly progressing upper wave over the Plains to the OH Valley Days 5-7 (Monday-Wednesday), while the 00Z Euro shows a mid-level trough evolving into a cut-off low that meanders over the Plains through the week. Both scenarios result in an appreciably strong surface low developing over the central Plains sometime mid next week, accompanied by near 70 F surface dewpoints and a buoyancy/vertical shear overlap supportive of a severe threat. However, too much variability in guidance precludes the delineation of severe probabilities this outlook.
..Squitieri.. 09/24/2026
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 | Sunday, September 27 | potential too low |
| Day 5 | Monday, September 28 | predictability too low |
| Day 6 | Tuesday, September 29 | predictability too low |
| Day 7 | Wednesday, September 30 | predictability too low |
| Day 8 | Thursday, October 1 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 240826 SPC AC 240826
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0326 AM CDT Thu Sep 24 2026
Valid 271200Z - 021200Z
DISCUSSION
A mid-level cutoff low will meander along the East Coast and will gradually depart the region early next week as a mid-level trough amplifies over the Rockies and impinges on the central U.S. Medium range guidance consensus varies in the morphology of the upper trough. The 00Z GFS features a rapidly progressing upper wave over the Plains to the OH Valley Days 5-7 (Monday-Wednesday), while the 00Z Euro shows a mid-level trough evolving into a cut-off low that meanders over the Plains through the week. Both scenarios result in an appreciably strong surface low developing over the central Plains sometime mid next week, accompanied by near 70 F surface dewpoints and a buoyancy/vertical shear overlap supportive of a severe threat. However, too much variability in guidance precludes the delineation of severe probabilities this outlook.
..Squitieri.. 09/24/2026
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 | Sunday, September 27 | potential too low |
| Day 5 | Monday, September 28 | predictability too low |
| Day 6 | Tuesday, September 29 | predictability too low |
| Day 7 | Wednesday, September 30 | predictability too low |
| Day 8 | Thursday, October 1 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 240826 SPC AC 240826
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0326 AM CDT Thu Sep 24 2026
Valid 271200Z - 021200Z
DISCUSSION
A mid-level cutoff low will meander along the East Coast and will gradually depart the region early next week as a mid-level trough amplifies over the Rockies and impinges on the central U.S. Medium range guidance consensus varies in the morphology of the upper trough. The 00Z GFS features a rapidly progressing upper wave over the Plains to the OH Valley Days 5-7 (Monday-Wednesday), while the 00Z Euro shows a mid-level trough evolving into a cut-off low that meanders over the Plains through the week. Both scenarios result in an appreciably strong surface low developing over the central Plains sometime mid next week, accompanied by near 70 F surface dewpoints and a buoyancy/vertical shear overlap supportive of a severe threat. However, too much variability in guidance precludes the delineation of severe probabilities this outlook.
..Squitieri.. 09/24/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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