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Scattered severe thunderstorms are likely today across parts of Ohio into West Virginia and western Pennsylvania/New York, and from portions of Texas into the lower Mississippi Valley and Mid-South. Damaging winds should be the main threat for most areas, but large hail may occur across parts of Texas, and a few tornadoes appear possible in the upper Ohio Valley.
← back to overviewSPC AC 071300
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0700 AM CST Sat Mar 07 2026
Valid 071300Z - 081200Z
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF TEXAS INTO THE LOWER MISSISSIPPI VALLEY/MID-SOUTH…AND PORTIONS OF THE OHIO VALLEY INTO WESTERN PENNSYLVANIA/NEW YORK
### SUMMARY
Scattered severe thunderstorms are likely today across parts of Ohio into West Virginia and western Pennsylvania/New York, and from portions of Texas into the lower Mississippi Valley and Mid-South. Damaging winds should be the main threat for most areas, but large hail may occur across parts of Texas, and a few tornadoes appear possible in the upper Ohio Valley.
Ohio Valley into Western Pennsylvania/New York
A large-scale upper trough will continue to advance eastward today across the Midwest, Great Lakes, and OH Valley though the period. The primary surface low is forecast to develop northeastward into Ontario and Quebec through the day, while a trailing cold front moves quickly east-southeastward across the OH Valley and eventually PA/NY. Recent visible satellite imagery shows some clearing across central/eastern OH, and strong low-level warm moist advection associated with a 40-50+ kt low-level jet will aid in a gradual increase in low-level moisture ahead of ongoing convection across KY/southern IL into IN. While MLCAPE should only peak around 500-1000 J/kg ahead of the front by early afternoon, strong flow at low/mid-levels will aid thunderstorm clusters in producing scattered severe/damaging winds as they move quickly eastward across the upper OH Valley later today. The potential for a few line-embedded and/or supercell tornadoes is also apparent given sufficient low-level shear. This convection is forecast to weaken this evening as it moves into the higher terrain of the Appalachians and encounters a much less unstable airmass.
Texas into the Lower Mississippi Valley/Mid-South
Extensive convection is ongoing this morning along/near a southeastward-moving cold front. Isolated damaging winds will remain possible this morning where short line segments/bows can stay ahead of the surging front. Current expectations are for an uptick in thunderstorm intensity to occur this afternoon as activity spreads southeastward into a gradually destabilizing airmass across the lower MS Valley/Mid-South. Scattered damaging winds along consolidating outflows should be the main threat for most areas this afternoon through early evening as low-level lapse rates steepen. But, some potential for supercells remains apparent across parts of TX, where steep mid-level lapse rates, greater MUCAPE, and modestly enhanced mid/upper-level flow and related deep-layer shear will support the potential for large hail. Even with the primary upper trough remaining to the north, some enhancement to the low-level winds persists, which may support a brief tornado threat in the short term. See Mesoscale Discussion 164 for more details on the near-term severe threat across AR and vicinity.
..Gleason/Dean.. 03/07/2026
CLICK TO GET WUUS01 PTSDY1 PRODUCT
NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z
Isolated, marginally severe thunderstorms are possible on Sunday afternoon to early evening across parts of the Carolinas to southeast Virginia.
← back to overviewSPC AC 070604
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1204 AM CST Sat Mar 07 2026
Valid 081200Z - 091200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE CAROLINAS INTO SOUTHEAST VIRGINIA
### SUMMARY
Isolated, marginally severe thunderstorms are possible on Sunday afternoon to early evening across parts of the Carolinas to southeast Virginia.
Carolinas into southeast VA
An upper shortwave trough will quickly move from the Great Lakes and across the Northeast by Sunday evening. Another weaker shortwave impulse will move across the TN Valley during the afternoon before emerging over VA/NC by early Monday. A belt of enhanced southwesterly deep-layer flow will overspread the northern extent of a warm sector across southeast VA into NC/SC. Modest surface troughing is forecast across the Piedmont, but low-level convergence is expected to remain weak. A surface front will not move much through afternoon, but with time will begin to develop south/southeast across the region during the evening.
Modest midlevel lapse rates and surface dewpoint in the 60s will foster weak destabilization. Isolated thunderstorm development is expected during the afternoon into evening ahead of the surface boundary. While low-level flow will remain weak, southwesterly flow aloft will increase rapidly, leading to around 25-30 kt effective shear magnitudes (somewhat higher across southeast VA/far northeast NC). A couple of organized cells could develop and pose a risk for locally strong gusts and marginally severe hail.
..Leitman.. 03/07/2026
CLICK TO GET WUUS02 PTSDY2 PRODUCT
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 1730Z
Isolated strong to severe thunderstorms are possible on Monday from northeast Texas into Mississippi.
← back to overviewSPC AC 070719
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0119 AM CST Sat Mar 07 2026
Valid 091200Z - 101200Z
THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM NORTHEAST TEXAS INTO MISSISSIPPI
### SUMMARY
Isolated strong to severe thunderstorms are possible on Monday from northeast Texas into Mississippi.
ArkLaTex to Mississippi
An upper low over northwest Mexico will begin to migrate east toward the southern Rockies/northern Mexico on Monday. Ahead of this feature, a subtle upper shortwave impulse will move from the southern Plains to the Southeast. This will allow enhanced west/southwesterly flow to overspread a moistening boundary layer across the Lower MS Valley into the Mid-South and TN Valley. Large-scale ascent will remain subtle. However, forecast guidance suggests sufficiently steep lapse rates will be present to support at least modest destabilization. Favorable deep shear also should support organized updrafts if enough destabilization occurs within the warm advection regime. Given modest forcing mechanisms, storm coverage is uncertain. However, the overall environment should be at least conditionally favorable for a few strong to severe storms through Monday afternoon/evening across portions of the ArkLaTex into MS.
..Leitman.. 03/07/2026
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 | Tuesday, March 10 | 15% |
| Day 5 | Wednesday, March 11 | 15% |
| Day 6 | Thursday, March 12 | predictability too low |
| Day 7 | Friday, March 13 | potential too low |
| Day 8 | Saturday, March 14 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 070834 SPC AC 070834
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0234 AM CST Sat Mar 07 2026
Valid 101200Z - 151200Z
DISCUSSION
Days 4-5/Tue-Wed
An active pattern with severe thunderstorm potential is expected Tuesday and Wednesday from the southern Plains to the Mid/Lower MS and OH Valleys. Medium range guidance is in fairly good agreement during this time. Starting on Tuesday, an upper low over northern Mexico will shift east/northeast, becoming an open wave as it begins to merge with a northern stream upper trough developing southeast across the northern/central Plains through early Wednesday. A belt of strong southwesterly deep-layer flow will overspread a large warm sector on Tuesday. Lee cyclogenesis is forecast across the central/southern High Plains, along with a second surface low developing over IA as the northern stream upper trough approaches. This setup will allow for a sharpening dryline/Pacific front across the southern Plains, while a cold front develops southeast into the MO/Mid-MS Valley overnight. Strong ascent should focus thunderstorm development across the warm sector ahead of these surface boundaries within a strongly sheared environment, and potentially widespread severe thunderstorm activity is possible.
The large-scale upper trough and attendant surface cold front will continue to progress eastward on Wednesday. Uncertainty does increase, especially with north and east extent of severe potential. How far east convection develops on Tuesday and how much downstream destabilization occurs is somewhat unclear. Nevertheless, a deepening surface cyclone is forecast to develop northeast from the Great Lakes into Ontario and Quebec, while strong deep layer southwesterly flow overspreads a moist warm sector ahead of the surface front. This should set the stage for at least isolated to scattered severe thunderstorm potential along the length of the cold front through Wednesday evening.
Given uncertainties mentioned above, these areas are likely to be adjusted in coming days as details become better resolved, but the overall pattern should support a couple of active severe weather days over a broad area.
Day 6/Thu
Uncertainty increases by Thursday as spread among medium range guidance increases quite a bit with respect to the evolution/timing of the upper trough. Some severe potential could persist/develop across the Mid-Atlantic region, but predictability is too low to include a 15 percent delineation at this time.
Beyond Thursday, severe thunderstorm potential will likely be low as the upper pattern become lower amplitude and stronger westerly flow remains confined to the northern tier of the U.S., along with Gulf moisture largely remaining offshore behind the cold frontal passage.
..Leitman.. 03/07/2026
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 | Tuesday, March 10 | 15% |
| Day 5 | Wednesday, March 11 | 15% |
| Day 6 | Thursday, March 12 | predictability too low |
| Day 7 | Friday, March 13 | potential too low |
| Day 8 | Saturday, March 14 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 070834 SPC AC 070834
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0234 AM CST Sat Mar 07 2026
Valid 101200Z - 151200Z
DISCUSSION
Days 4-5/Tue-Wed
An active pattern with severe thunderstorm potential is expected Tuesday and Wednesday from the southern Plains to the Mid/Lower MS and OH Valleys. Medium range guidance is in fairly good agreement during this time. Starting on Tuesday, an upper low over northern Mexico will shift east/northeast, becoming an open wave as it begins to merge with a northern stream upper trough developing southeast across the northern/central Plains through early Wednesday. A belt of strong southwesterly deep-layer flow will overspread a large warm sector on Tuesday. Lee cyclogenesis is forecast across the central/southern High Plains, along with a second surface low developing over IA as the northern stream upper trough approaches. This setup will allow for a sharpening dryline/Pacific front across the southern Plains, while a cold front develops southeast into the MO/Mid-MS Valley overnight. Strong ascent should focus thunderstorm development across the warm sector ahead of these surface boundaries within a strongly sheared environment, and potentially widespread severe thunderstorm activity is possible.
The large-scale upper trough and attendant surface cold front will continue to progress eastward on Wednesday. Uncertainty does increase, especially with north and east extent of severe potential. How far east convection develops on Tuesday and how much downstream destabilization occurs is somewhat unclear. Nevertheless, a deepening surface cyclone is forecast to develop northeast from the Great Lakes into Ontario and Quebec, while strong deep layer southwesterly flow overspreads a moist warm sector ahead of the surface front. This should set the stage for at least isolated to scattered severe thunderstorm potential along the length of the cold front through Wednesday evening.
Given uncertainties mentioned above, these areas are likely to be adjusted in coming days as details become better resolved, but the overall pattern should support a couple of active severe weather days over a broad area.
Day 6/Thu
Uncertainty increases by Thursday as spread among medium range guidance increases quite a bit with respect to the evolution/timing of the upper trough. Some severe potential could persist/develop across the Mid-Atlantic region, but predictability is too low to include a 15 percent delineation at this time.
Beyond Thursday, severe thunderstorm potential will likely be low as the upper pattern become lower amplitude and stronger westerly flow remains confined to the northern tier of the U.S., along with Gulf moisture largely remaining offshore behind the cold frontal passage.
..Leitman.. 03/07/2026
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 | Tuesday, March 10 | 15% |
| Day 5 | Wednesday, March 11 | 15% |
| Day 6 | Thursday, March 12 | predictability too low |
| Day 7 | Friday, March 13 | potential too low |
| Day 8 | Saturday, March 14 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 070834 SPC AC 070834
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0234 AM CST Sat Mar 07 2026
Valid 101200Z - 151200Z
DISCUSSION
Days 4-5/Tue-Wed
An active pattern with severe thunderstorm potential is expected Tuesday and Wednesday from the southern Plains to the Mid/Lower MS and OH Valleys. Medium range guidance is in fairly good agreement during this time. Starting on Tuesday, an upper low over northern Mexico will shift east/northeast, becoming an open wave as it begins to merge with a northern stream upper trough developing southeast across the northern/central Plains through early Wednesday. A belt of strong southwesterly deep-layer flow will overspread a large warm sector on Tuesday. Lee cyclogenesis is forecast across the central/southern High Plains, along with a second surface low developing over IA as the northern stream upper trough approaches. This setup will allow for a sharpening dryline/Pacific front across the southern Plains, while a cold front develops southeast into the MO/Mid-MS Valley overnight. Strong ascent should focus thunderstorm development across the warm sector ahead of these surface boundaries within a strongly sheared environment, and potentially widespread severe thunderstorm activity is possible.
The large-scale upper trough and attendant surface cold front will continue to progress eastward on Wednesday. Uncertainty does increase, especially with north and east extent of severe potential. How far east convection develops on Tuesday and how much downstream destabilization occurs is somewhat unclear. Nevertheless, a deepening surface cyclone is forecast to develop northeast from the Great Lakes into Ontario and Quebec, while strong deep layer southwesterly flow overspreads a moist warm sector ahead of the surface front. This should set the stage for at least isolated to scattered severe thunderstorm potential along the length of the cold front through Wednesday evening.
Given uncertainties mentioned above, these areas are likely to be adjusted in coming days as details become better resolved, but the overall pattern should support a couple of active severe weather days over a broad area.
Day 6/Thu
Uncertainty increases by Thursday as spread among medium range guidance increases quite a bit with respect to the evolution/timing of the upper trough. Some severe potential could persist/develop across the Mid-Atlantic region, but predictability is too low to include a 15 percent delineation at this time.
Beyond Thursday, severe thunderstorm potential will likely be low as the upper pattern become lower amplitude and stronger westerly flow remains confined to the northern tier of the U.S., along with Gulf moisture largely remaining offshore behind the cold frontal passage.
..Leitman.. 03/07/2026
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 | Tuesday, March 10 | 15% |
| Day 5 | Wednesday, March 11 | 15% |
| Day 6 | Thursday, March 12 | predictability too low |
| Day 7 | Friday, March 13 | potential too low |
| Day 8 | Saturday, March 14 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 070834 SPC AC 070834
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0234 AM CST Sat Mar 07 2026
Valid 101200Z - 151200Z
DISCUSSION
Days 4-5/Tue-Wed
An active pattern with severe thunderstorm potential is expected Tuesday and Wednesday from the southern Plains to the Mid/Lower MS and OH Valleys. Medium range guidance is in fairly good agreement during this time. Starting on Tuesday, an upper low over northern Mexico will shift east/northeast, becoming an open wave as it begins to merge with a northern stream upper trough developing southeast across the northern/central Plains through early Wednesday. A belt of strong southwesterly deep-layer flow will overspread a large warm sector on Tuesday. Lee cyclogenesis is forecast across the central/southern High Plains, along with a second surface low developing over IA as the northern stream upper trough approaches. This setup will allow for a sharpening dryline/Pacific front across the southern Plains, while a cold front develops southeast into the MO/Mid-MS Valley overnight. Strong ascent should focus thunderstorm development across the warm sector ahead of these surface boundaries within a strongly sheared environment, and potentially widespread severe thunderstorm activity is possible.
The large-scale upper trough and attendant surface cold front will continue to progress eastward on Wednesday. Uncertainty does increase, especially with north and east extent of severe potential. How far east convection develops on Tuesday and how much downstream destabilization occurs is somewhat unclear. Nevertheless, a deepening surface cyclone is forecast to develop northeast from the Great Lakes into Ontario and Quebec, while strong deep layer southwesterly flow overspreads a moist warm sector ahead of the surface front. This should set the stage for at least isolated to scattered severe thunderstorm potential along the length of the cold front through Wednesday evening.
Given uncertainties mentioned above, these areas are likely to be adjusted in coming days as details become better resolved, but the overall pattern should support a couple of active severe weather days over a broad area.
Day 6/Thu
Uncertainty increases by Thursday as spread among medium range guidance increases quite a bit with respect to the evolution/timing of the upper trough. Some severe potential could persist/develop across the Mid-Atlantic region, but predictability is too low to include a 15 percent delineation at this time.
Beyond Thursday, severe thunderstorm potential will likely be low as the upper pattern become lower amplitude and stronger westerly flow remains confined to the northern tier of the U.S., along with Gulf moisture largely remaining offshore behind the cold frontal passage.
..Leitman.. 03/07/2026
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 | Tuesday, March 10 | 15% |
| Day 5 | Wednesday, March 11 | 15% |
| Day 6 | Thursday, March 12 | predictability too low |
| Day 7 | Friday, March 13 | potential too low |
| Day 8 | Saturday, March 14 | potential too low |
← back to overviewZCZC SPCSWOD48 ALL ACUS48 KWNS 070834 SPC AC 070834
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0234 AM CST Sat Mar 07 2026
Valid 101200Z - 151200Z
DISCUSSION
Days 4-5/Tue-Wed
An active pattern with severe thunderstorm potential is expected Tuesday and Wednesday from the southern Plains to the Mid/Lower MS and OH Valleys. Medium range guidance is in fairly good agreement during this time. Starting on Tuesday, an upper low over northern Mexico will shift east/northeast, becoming an open wave as it begins to merge with a northern stream upper trough developing southeast across the northern/central Plains through early Wednesday. A belt of strong southwesterly deep-layer flow will overspread a large warm sector on Tuesday. Lee cyclogenesis is forecast across the central/southern High Plains, along with a second surface low developing over IA as the northern stream upper trough approaches. This setup will allow for a sharpening dryline/Pacific front across the southern Plains, while a cold front develops southeast into the MO/Mid-MS Valley overnight. Strong ascent should focus thunderstorm development across the warm sector ahead of these surface boundaries within a strongly sheared environment, and potentially widespread severe thunderstorm activity is possible.
The large-scale upper trough and attendant surface cold front will continue to progress eastward on Wednesday. Uncertainty does increase, especially with north and east extent of severe potential. How far east convection develops on Tuesday and how much downstream destabilization occurs is somewhat unclear. Nevertheless, a deepening surface cyclone is forecast to develop northeast from the Great Lakes into Ontario and Quebec, while strong deep layer southwesterly flow overspreads a moist warm sector ahead of the surface front. This should set the stage for at least isolated to scattered severe thunderstorm potential along the length of the cold front through Wednesday evening.
Given uncertainties mentioned above, these areas are likely to be adjusted in coming days as details become better resolved, but the overall pattern should support a couple of active severe weather days over a broad area.
Day 6/Thu
Uncertainty increases by Thursday as spread among medium range guidance increases quite a bit with respect to the evolution/timing of the upper trough. Some severe potential could persist/develop across the Mid-Atlantic region, but predictability is too low to include a 15 percent delineation at this time.
Beyond Thursday, severe thunderstorm potential will likely be low as the upper pattern become lower amplitude and stronger westerly flow remains confined to the northern tier of the U.S., along with Gulf moisture largely remaining offshore behind the cold frontal passage.
..Leitman.. 03/07/2026
CLICK TO GET WUUS48 PTSD48 PRODUCT
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