SPC Feb 8, 2025 2000 UTC Day 1 Convective Outlook

5 months 1 week ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0156 PM CST Sat Feb 08 2025 Valid 082000Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS PARTS OF THE LOWER OHIO VALLEY AND CUMBERLAND PLATEAU... ...SUMMARY... Isolated to scattered thunderstorm development is possible across parts of the Ohio Valley today, with a few strong storms possible. ...20z Update... No changes are needed to the D1 Convective Outlook. See previous discussion below for more information. ..Thornton/Guyer.. 02/08/2025 .PREV DISCUSSION... /ISSUED 1033 AM CST Sat Feb 08 2025/ ...Ohio Valley/Cumberland Plateau... The region will be glancingly influenced by a modestly amplifying and eastward-moving shortwave trough over the Upper Mississippi Valley and upper Great Lakes. Modest surface cyclogenesis is expected from the Ozarks quickly northeastward across the lower/middle Ohio River Valley through this evening, with a preceding warm front and a trailing northeast/southwest-extending cold front. Strengthening warm-air advection throughout the warm sector preceding this low will help moisten the low/mid-levels enough to support limited buoyancy. Mid-level temperatures will tend to cool, but most forecast soundings tend to reflect a semi-persistent inversion around 3km AGL/700-650mb, even if surface temperatures aggressive warm into the upper 60s/near 70F and boundary-layer calculated inhibition becomes negligible. Forcing for ascent attendant to the approaching shortwave trough will be augmented by both persistent warm-air advection and semi-focused mesoscale lift near the surface low. Even with a marginal thermodynamic environment, the resulting combination of lift and weak buoyancy should support deepening convective structures potentially capable of lightning production by late afternoon and early evening. Even with minimal buoyancy, some convectively enhanced wind gusts could occur in the presence of very strong west-southwesterly wind profiles, accentuated by 50-65 kt winds around 1 km AGL. Some hail, expected to be mostly sub-severe, could also occur across eastern Indiana and Ohio near/north of the warm front. Read more

SPC Feb 8, 2025 2000 UTC Day 1 Convective Outlook

5 months 1 week ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0156 PM CST Sat Feb 08 2025 Valid 082000Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS PARTS OF THE LOWER OHIO VALLEY AND CUMBERLAND PLATEAU... ...SUMMARY... Isolated to scattered thunderstorm development is possible across parts of the Ohio Valley today, with a few strong storms possible. ...20z Update... No changes are needed to the D1 Convective Outlook. See previous discussion below for more information. ..Thornton/Guyer.. 02/08/2025 .PREV DISCUSSION... /ISSUED 1033 AM CST Sat Feb 08 2025/ ...Ohio Valley/Cumberland Plateau... The region will be glancingly influenced by a modestly amplifying and eastward-moving shortwave trough over the Upper Mississippi Valley and upper Great Lakes. Modest surface cyclogenesis is expected from the Ozarks quickly northeastward across the lower/middle Ohio River Valley through this evening, with a preceding warm front and a trailing northeast/southwest-extending cold front. Strengthening warm-air advection throughout the warm sector preceding this low will help moisten the low/mid-levels enough to support limited buoyancy. Mid-level temperatures will tend to cool, but most forecast soundings tend to reflect a semi-persistent inversion around 3km AGL/700-650mb, even if surface temperatures aggressive warm into the upper 60s/near 70F and boundary-layer calculated inhibition becomes negligible. Forcing for ascent attendant to the approaching shortwave trough will be augmented by both persistent warm-air advection and semi-focused mesoscale lift near the surface low. Even with a marginal thermodynamic environment, the resulting combination of lift and weak buoyancy should support deepening convective structures potentially capable of lightning production by late afternoon and early evening. Even with minimal buoyancy, some convectively enhanced wind gusts could occur in the presence of very strong west-southwesterly wind profiles, accentuated by 50-65 kt winds around 1 km AGL. Some hail, expected to be mostly sub-severe, could also occur across eastern Indiana and Ohio near/north of the warm front. Read more

SPC Feb 8, 2025 2000 UTC Day 1 Convective Outlook

5 months 1 week ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0156 PM CST Sat Feb 08 2025 Valid 082000Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS PARTS OF THE LOWER OHIO VALLEY AND CUMBERLAND PLATEAU... ...SUMMARY... Isolated to scattered thunderstorm development is possible across parts of the Ohio Valley today, with a few strong storms possible. ...20z Update... No changes are needed to the D1 Convective Outlook. See previous discussion below for more information. ..Thornton/Guyer.. 02/08/2025 .PREV DISCUSSION... /ISSUED 1033 AM CST Sat Feb 08 2025/ ...Ohio Valley/Cumberland Plateau... The region will be glancingly influenced by a modestly amplifying and eastward-moving shortwave trough over the Upper Mississippi Valley and upper Great Lakes. Modest surface cyclogenesis is expected from the Ozarks quickly northeastward across the lower/middle Ohio River Valley through this evening, with a preceding warm front and a trailing northeast/southwest-extending cold front. Strengthening warm-air advection throughout the warm sector preceding this low will help moisten the low/mid-levels enough to support limited buoyancy. Mid-level temperatures will tend to cool, but most forecast soundings tend to reflect a semi-persistent inversion around 3km AGL/700-650mb, even if surface temperatures aggressive warm into the upper 60s/near 70F and boundary-layer calculated inhibition becomes negligible. Forcing for ascent attendant to the approaching shortwave trough will be augmented by both persistent warm-air advection and semi-focused mesoscale lift near the surface low. Even with a marginal thermodynamic environment, the resulting combination of lift and weak buoyancy should support deepening convective structures potentially capable of lightning production by late afternoon and early evening. Even with minimal buoyancy, some convectively enhanced wind gusts could occur in the presence of very strong west-southwesterly wind profiles, accentuated by 50-65 kt winds around 1 km AGL. Some hail, expected to be mostly sub-severe, could also occur across eastern Indiana and Ohio near/north of the warm front. Read more

SPC Feb 8, 2025 2000 UTC Day 1 Convective Outlook

5 months 1 week ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0156 PM CST Sat Feb 08 2025 Valid 082000Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS PARTS OF THE LOWER OHIO VALLEY AND CUMBERLAND PLATEAU... ...SUMMARY... Isolated to scattered thunderstorm development is possible across parts of the Ohio Valley today, with a few strong storms possible. ...20z Update... No changes are needed to the D1 Convective Outlook. See previous discussion below for more information. ..Thornton/Guyer.. 02/08/2025 .PREV DISCUSSION... /ISSUED 1033 AM CST Sat Feb 08 2025/ ...Ohio Valley/Cumberland Plateau... The region will be glancingly influenced by a modestly amplifying and eastward-moving shortwave trough over the Upper Mississippi Valley and upper Great Lakes. Modest surface cyclogenesis is expected from the Ozarks quickly northeastward across the lower/middle Ohio River Valley through this evening, with a preceding warm front and a trailing northeast/southwest-extending cold front. Strengthening warm-air advection throughout the warm sector preceding this low will help moisten the low/mid-levels enough to support limited buoyancy. Mid-level temperatures will tend to cool, but most forecast soundings tend to reflect a semi-persistent inversion around 3km AGL/700-650mb, even if surface temperatures aggressive warm into the upper 60s/near 70F and boundary-layer calculated inhibition becomes negligible. Forcing for ascent attendant to the approaching shortwave trough will be augmented by both persistent warm-air advection and semi-focused mesoscale lift near the surface low. Even with a marginal thermodynamic environment, the resulting combination of lift and weak buoyancy should support deepening convective structures potentially capable of lightning production by late afternoon and early evening. Even with minimal buoyancy, some convectively enhanced wind gusts could occur in the presence of very strong west-southwesterly wind profiles, accentuated by 50-65 kt winds around 1 km AGL. Some hail, expected to be mostly sub-severe, could also occur across eastern Indiana and Ohio near/north of the warm front. Read more

SPC Feb 8, 2025 2000 UTC Day 1 Convective Outlook

5 months 1 week ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0156 PM CST Sat Feb 08 2025 Valid 082000Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS PARTS OF THE LOWER OHIO VALLEY AND CUMBERLAND PLATEAU... ...SUMMARY... Isolated to scattered thunderstorm development is possible across parts of the Ohio Valley today, with a few strong storms possible. ...20z Update... No changes are needed to the D1 Convective Outlook. See previous discussion below for more information. ..Thornton/Guyer.. 02/08/2025 .PREV DISCUSSION... /ISSUED 1033 AM CST Sat Feb 08 2025/ ...Ohio Valley/Cumberland Plateau... The region will be glancingly influenced by a modestly amplifying and eastward-moving shortwave trough over the Upper Mississippi Valley and upper Great Lakes. Modest surface cyclogenesis is expected from the Ozarks quickly northeastward across the lower/middle Ohio River Valley through this evening, with a preceding warm front and a trailing northeast/southwest-extending cold front. Strengthening warm-air advection throughout the warm sector preceding this low will help moisten the low/mid-levels enough to support limited buoyancy. Mid-level temperatures will tend to cool, but most forecast soundings tend to reflect a semi-persistent inversion around 3km AGL/700-650mb, even if surface temperatures aggressive warm into the upper 60s/near 70F and boundary-layer calculated inhibition becomes negligible. Forcing for ascent attendant to the approaching shortwave trough will be augmented by both persistent warm-air advection and semi-focused mesoscale lift near the surface low. Even with a marginal thermodynamic environment, the resulting combination of lift and weak buoyancy should support deepening convective structures potentially capable of lightning production by late afternoon and early evening. Even with minimal buoyancy, some convectively enhanced wind gusts could occur in the presence of very strong west-southwesterly wind profiles, accentuated by 50-65 kt winds around 1 km AGL. Some hail, expected to be mostly sub-severe, could also occur across eastern Indiana and Ohio near/north of the warm front. Read more

SPC Feb 8, 2025 2000 UTC Day 1 Convective Outlook

5 months 1 week ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0156 PM CST Sat Feb 08 2025 Valid 082000Z - 091200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS PARTS OF THE LOWER OHIO VALLEY AND CUMBERLAND PLATEAU... ...SUMMARY... Isolated to scattered thunderstorm development is possible across parts of the Ohio Valley today, with a few strong storms possible. ...20z Update... No changes are needed to the D1 Convective Outlook. See previous discussion below for more information. ..Thornton/Guyer.. 02/08/2025 .PREV DISCUSSION... /ISSUED 1033 AM CST Sat Feb 08 2025/ ...Ohio Valley/Cumberland Plateau... The region will be glancingly influenced by a modestly amplifying and eastward-moving shortwave trough over the Upper Mississippi Valley and upper Great Lakes. Modest surface cyclogenesis is expected from the Ozarks quickly northeastward across the lower/middle Ohio River Valley through this evening, with a preceding warm front and a trailing northeast/southwest-extending cold front. Strengthening warm-air advection throughout the warm sector preceding this low will help moisten the low/mid-levels enough to support limited buoyancy. Mid-level temperatures will tend to cool, but most forecast soundings tend to reflect a semi-persistent inversion around 3km AGL/700-650mb, even if surface temperatures aggressive warm into the upper 60s/near 70F and boundary-layer calculated inhibition becomes negligible. Forcing for ascent attendant to the approaching shortwave trough will be augmented by both persistent warm-air advection and semi-focused mesoscale lift near the surface low. Even with a marginal thermodynamic environment, the resulting combination of lift and weak buoyancy should support deepening convective structures potentially capable of lightning production by late afternoon and early evening. Even with minimal buoyancy, some convectively enhanced wind gusts could occur in the presence of very strong west-southwesterly wind profiles, accentuated by 50-65 kt winds around 1 km AGL. Some hail, expected to be mostly sub-severe, could also occur across eastern Indiana and Ohio near/north of the warm front. Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Feb 8, 2025 1930 UTC Day 3 Severe Thunderstorm Outlook

5 months 1 week ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Sat Feb 08 2025 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Edwards Plateau into central and northeast Texas late Monday night. Severe weather potential is low. ...Synopsis... Quasi-zonal deep-layer flow and surface high pressure will persist from the northern Rockies to the Northeast on Monday. Further south and west, a shortwave upper trough offshore from Baja will shift east across northern Mexico and AZ/NM through early Tuesday. This will result in increasing southwesterly flow across the southern High Plains while modest surface lee troughing develops in the vicinity of the Rio Grande Valley. ...Central/West Texas... A stalled front extending west to east from the Edwards Plateau vicinity to the central Gulf coast will not move much during the day. As the upper shortwave trough approaches during the second half of the period, low-level warm advection and some northward progression of the boundary will result in modest boundary-layer moisture spreading into central TX. Some weak elevated instability is evident in forecast soundings between 500-700 mb atop an elevated mixed layer. While vertical shear will be favorable for organized convection, the shallow and weak layer of elevated instability will likely limit severe potential. Nevertheless, isolated to scattered general thunderstorms are possible late Monday into early Tuesday in this warm advection regime ahead of the approaching upper trough. ..Leitman.. 02/08/2025 Read more

SPC Day 2 Fire Weather Outlook

5 months 1 week ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1257 PM CST Sat Feb 08 2025 Valid 091200Z - 101200Z ...NO CRITICAL AREAS... The previous forecast (see below) remains on track. ..Squitieri.. 02/08/2025 .PREV DISCUSSION... /ISSUED 0100 AM CST Sat Feb 08 2025/ ...Synopsis... A relative lull in fire-weather conditions is expected across the CONUS on Sunday, as one upper-level system moves off the East Coast but before another upper-level trough deepens over the West. While conditions will remain dry over much of the Southwest, including afternoon RH values at or below critical values, sustained afternoon surface wind speeds are likely to remain at or below 15 mph across the region. Therefore, no fire-weather highlights are included in this outlook. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

5 months 1 week ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1257 PM CST Sat Feb 08 2025 Valid 091200Z - 101200Z ...NO CRITICAL AREAS... The previous forecast (see below) remains on track. ..Squitieri.. 02/08/2025 .PREV DISCUSSION... /ISSUED 0100 AM CST Sat Feb 08 2025/ ...Synopsis... A relative lull in fire-weather conditions is expected across the CONUS on Sunday, as one upper-level system moves off the East Coast but before another upper-level trough deepens over the West. While conditions will remain dry over much of the Southwest, including afternoon RH values at or below critical values, sustained afternoon surface wind speeds are likely to remain at or below 15 mph across the region. Therefore, no fire-weather highlights are included in this outlook. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

5 months 1 week ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1257 PM CST Sat Feb 08 2025 Valid 091200Z - 101200Z ...NO CRITICAL AREAS... The previous forecast (see below) remains on track. ..Squitieri.. 02/08/2025 .PREV DISCUSSION... /ISSUED 0100 AM CST Sat Feb 08 2025/ ...Synopsis... A relative lull in fire-weather conditions is expected across the CONUS on Sunday, as one upper-level system moves off the East Coast but before another upper-level trough deepens over the West. While conditions will remain dry over much of the Southwest, including afternoon RH values at or below critical values, sustained afternoon surface wind speeds are likely to remain at or below 15 mph across the region. Therefore, no fire-weather highlights are included in this outlook. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

5 months 1 week ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1257 PM CST Sat Feb 08 2025 Valid 091200Z - 101200Z ...NO CRITICAL AREAS... The previous forecast (see below) remains on track. ..Squitieri.. 02/08/2025 .PREV DISCUSSION... /ISSUED 0100 AM CST Sat Feb 08 2025/ ...Synopsis... A relative lull in fire-weather conditions is expected across the CONUS on Sunday, as one upper-level system moves off the East Coast but before another upper-level trough deepens over the West. While conditions will remain dry over much of the Southwest, including afternoon RH values at or below critical values, sustained afternoon surface wind speeds are likely to remain at or below 15 mph across the region. Therefore, no fire-weather highlights are included in this outlook. ...Please see www.spc.noaa.gov/fire for graphic product... Read more
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