SPC Day 2 Fire Weather Outlook

10 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0112 PM CST Fri Nov 08 2024 Valid 091200Z - 101200Z ...19z Update... A small Elevated has been added to portions of coastal southern New England for brief fire-weather conditions Saturday. A dry and breezy post-frontal air mass may allow transient overlap of wind gusts of 15+ mph with RH below 30%. Winds will quickly weaken into the late afternoon and evening, but low RH may linger. Given the state of dry fuels, an isolated fire-weather risk is possible. Elsewhere, dry conditions will likely persist over the Mid Atlantic and parts of southern California. However, surface winds are not expected to be strong enough to support widespread elevated fire-weather conditions. See the prior outlook for additional info. ..Lyons.. 11/08/2024 .PREV DISCUSSION... /ISSUED 0143 AM CST Fri Nov 08 2024/ ...Synopsis... Fire weather concerns will be low across the CONUS on Saturday. A deepening trough will bring widespread rain across much of the central/southern Plains. Elsewhere, dry conditions will continue across southern California and across portions of New England. Both of these regions will be under building high pressure, keeping winds mostly light and fire concerns low. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

10 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0112 PM CST Fri Nov 08 2024 Valid 091200Z - 101200Z ...19z Update... A small Elevated has been added to portions of coastal southern New England for brief fire-weather conditions Saturday. A dry and breezy post-frontal air mass may allow transient overlap of wind gusts of 15+ mph with RH below 30%. Winds will quickly weaken into the late afternoon and evening, but low RH may linger. Given the state of dry fuels, an isolated fire-weather risk is possible. Elsewhere, dry conditions will likely persist over the Mid Atlantic and parts of southern California. However, surface winds are not expected to be strong enough to support widespread elevated fire-weather conditions. See the prior outlook for additional info. ..Lyons.. 11/08/2024 .PREV DISCUSSION... /ISSUED 0143 AM CST Fri Nov 08 2024/ ...Synopsis... Fire weather concerns will be low across the CONUS on Saturday. A deepening trough will bring widespread rain across much of the central/southern Plains. Elsewhere, dry conditions will continue across southern California and across portions of New England. Both of these regions will be under building high pressure, keeping winds mostly light and fire concerns low. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

10 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0112 PM CST Fri Nov 08 2024 Valid 091200Z - 101200Z ...19z Update... A small Elevated has been added to portions of coastal southern New England for brief fire-weather conditions Saturday. A dry and breezy post-frontal air mass may allow transient overlap of wind gusts of 15+ mph with RH below 30%. Winds will quickly weaken into the late afternoon and evening, but low RH may linger. Given the state of dry fuels, an isolated fire-weather risk is possible. Elsewhere, dry conditions will likely persist over the Mid Atlantic and parts of southern California. However, surface winds are not expected to be strong enough to support widespread elevated fire-weather conditions. See the prior outlook for additional info. ..Lyons.. 11/08/2024 .PREV DISCUSSION... /ISSUED 0143 AM CST Fri Nov 08 2024/ ...Synopsis... Fire weather concerns will be low across the CONUS on Saturday. A deepening trough will bring widespread rain across much of the central/southern Plains. Elsewhere, dry conditions will continue across southern California and across portions of New England. Both of these regions will be under building high pressure, keeping winds mostly light and fire concerns low. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

10 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0112 PM CST Fri Nov 08 2024 Valid 091200Z - 101200Z ...19z Update... A small Elevated has been added to portions of coastal southern New England for brief fire-weather conditions Saturday. A dry and breezy post-frontal air mass may allow transient overlap of wind gusts of 15+ mph with RH below 30%. Winds will quickly weaken into the late afternoon and evening, but low RH may linger. Given the state of dry fuels, an isolated fire-weather risk is possible. Elsewhere, dry conditions will likely persist over the Mid Atlantic and parts of southern California. However, surface winds are not expected to be strong enough to support widespread elevated fire-weather conditions. See the prior outlook for additional info. ..Lyons.. 11/08/2024 .PREV DISCUSSION... /ISSUED 0143 AM CST Fri Nov 08 2024/ ...Synopsis... Fire weather concerns will be low across the CONUS on Saturday. A deepening trough will bring widespread rain across much of the central/southern Plains. Elsewhere, dry conditions will continue across southern California and across portions of New England. Both of these regions will be under building high pressure, keeping winds mostly light and fire concerns low. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

10 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0112 PM CST Fri Nov 08 2024 Valid 091200Z - 101200Z ...19z Update... A small Elevated has been added to portions of coastal southern New England for brief fire-weather conditions Saturday. A dry and breezy post-frontal air mass may allow transient overlap of wind gusts of 15+ mph with RH below 30%. Winds will quickly weaken into the late afternoon and evening, but low RH may linger. Given the state of dry fuels, an isolated fire-weather risk is possible. Elsewhere, dry conditions will likely persist over the Mid Atlantic and parts of southern California. However, surface winds are not expected to be strong enough to support widespread elevated fire-weather conditions. See the prior outlook for additional info. ..Lyons.. 11/08/2024 .PREV DISCUSSION... /ISSUED 0143 AM CST Fri Nov 08 2024/ ...Synopsis... Fire weather concerns will be low across the CONUS on Saturday. A deepening trough will bring widespread rain across much of the central/southern Plains. Elsewhere, dry conditions will continue across southern California and across portions of New England. Both of these regions will be under building high pressure, keeping winds mostly light and fire concerns low. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

10 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0112 PM CST Fri Nov 08 2024 Valid 091200Z - 101200Z ...19z Update... A small Elevated has been added to portions of coastal southern New England for brief fire-weather conditions Saturday. A dry and breezy post-frontal air mass may allow transient overlap of wind gusts of 15+ mph with RH below 30%. Winds will quickly weaken into the late afternoon and evening, but low RH may linger. Given the state of dry fuels, an isolated fire-weather risk is possible. Elsewhere, dry conditions will likely persist over the Mid Atlantic and parts of southern California. However, surface winds are not expected to be strong enough to support widespread elevated fire-weather conditions. See the prior outlook for additional info. ..Lyons.. 11/08/2024 .PREV DISCUSSION... /ISSUED 0143 AM CST Fri Nov 08 2024/ ...Synopsis... Fire weather concerns will be low across the CONUS on Saturday. A deepening trough will bring widespread rain across much of the central/southern Plains. Elsewhere, dry conditions will continue across southern California and across portions of New England. Both of these regions will be under building high pressure, keeping winds mostly light and fire concerns low. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more

SPC Nov 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

10 months ago
SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0108 PM CST Fri Nov 08 2024 Valid 101200Z - 111200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected on Sunday or Sunday night. ...Synopsis... The mid/upper cyclone over the Upper Midwest will shift east/northeast into southern Quebec and the Northeast. A quasi-stationary surface boundary will extend southwest from a Great Lakes/southeastern Canada low into the Mid-South and east Texas. Isolated thunderstorms will be possible within the warm sector ahead of the front. Poor lapse rates, weak instability and weakening vertical shear will preclude severe thunderstorm potential. A few thunderstorms may develop near the Pacific Northwest coast late Sunday/early Monday as a shortwave upper trough approaches the region. Additional thunderstorms also are possible across south FL from late afternoon onward as moisture increases within a southeasterly flow regime. ...Coastal Louisiana... Forecast guidance continues to show some spread regarding the central position of Rafael on Sunday. However, ECMWF ensembles mostly still align with latest track guidance from the National Hurricane Center, keeping the low well offshore the Gulf Coast. As such, tornado potential is expected to remain low. ..Leitman.. 11/08/2024 Read more