SPC Day 2 Fire Weather Outlook

1 year 9 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0145 PM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO CRITICAL AREAS... No changes are needed to the D2 Fire Weather Outlook. See previous discussion below. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 0118 AM CST Sat Nov 11 2023/ ...Synopsis... The potential for critical fire weather conditions appears low for Sunday. An upper wave currently moving into the northeastern Pacific is forecast to move into the Pacific Northwest over the next 48 hours. As this occurs, surface pressure falls along the West/Pacific Northwest coasts will strengthen southerly winds over the southern Great Basin. Dry conditions are expected across a broad swath of the western and central CONUS Sunday afternoon with RH values in the teens to 20s from CA to the central Plains. However, southerly low-level wind trajectories emanating off of the southern Sierra Nevada and the southern CA desert will support RH reductions into the low teens, and perhaps single digits, across central NV to far southern ID. Winds gusting up to 15-20 mph will likely result in patchy areas of elevated fire weather concerns, but latest ERC analyses suggests fuels are only modestly receptive at this time (ERCs between the 50-75th percentiles). Highlights are withheld given the uncertain fuel status and somewhat localized nature of the threat, but trends will continue to be monitored. The offshore flow regime along the southern CA coast will continue to weaken through the day Sunday, but localized elevated conditions are possibly early Sunday morning for wind-prone locations within the higher terrain. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

1 year 9 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0145 PM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO CRITICAL AREAS... No changes are needed to the D2 Fire Weather Outlook. See previous discussion below. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 0118 AM CST Sat Nov 11 2023/ ...Synopsis... The potential for critical fire weather conditions appears low for Sunday. An upper wave currently moving into the northeastern Pacific is forecast to move into the Pacific Northwest over the next 48 hours. As this occurs, surface pressure falls along the West/Pacific Northwest coasts will strengthen southerly winds over the southern Great Basin. Dry conditions are expected across a broad swath of the western and central CONUS Sunday afternoon with RH values in the teens to 20s from CA to the central Plains. However, southerly low-level wind trajectories emanating off of the southern Sierra Nevada and the southern CA desert will support RH reductions into the low teens, and perhaps single digits, across central NV to far southern ID. Winds gusting up to 15-20 mph will likely result in patchy areas of elevated fire weather concerns, but latest ERC analyses suggests fuels are only modestly receptive at this time (ERCs between the 50-75th percentiles). Highlights are withheld given the uncertain fuel status and somewhat localized nature of the threat, but trends will continue to be monitored. The offshore flow regime along the southern CA coast will continue to weaken through the day Sunday, but localized elevated conditions are possibly early Sunday morning for wind-prone locations within the higher terrain. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

1 year 9 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0145 PM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO CRITICAL AREAS... No changes are needed to the D2 Fire Weather Outlook. See previous discussion below. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 0118 AM CST Sat Nov 11 2023/ ...Synopsis... The potential for critical fire weather conditions appears low for Sunday. An upper wave currently moving into the northeastern Pacific is forecast to move into the Pacific Northwest over the next 48 hours. As this occurs, surface pressure falls along the West/Pacific Northwest coasts will strengthen southerly winds over the southern Great Basin. Dry conditions are expected across a broad swath of the western and central CONUS Sunday afternoon with RH values in the teens to 20s from CA to the central Plains. However, southerly low-level wind trajectories emanating off of the southern Sierra Nevada and the southern CA desert will support RH reductions into the low teens, and perhaps single digits, across central NV to far southern ID. Winds gusting up to 15-20 mph will likely result in patchy areas of elevated fire weather concerns, but latest ERC analyses suggests fuels are only modestly receptive at this time (ERCs between the 50-75th percentiles). Highlights are withheld given the uncertain fuel status and somewhat localized nature of the threat, but trends will continue to be monitored. The offshore flow regime along the southern CA coast will continue to weaken through the day Sunday, but localized elevated conditions are possibly early Sunday morning for wind-prone locations within the higher terrain. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook

1 year 9 months ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0145 PM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO CRITICAL AREAS... No changes are needed to the D2 Fire Weather Outlook. See previous discussion below. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 0118 AM CST Sat Nov 11 2023/ ...Synopsis... The potential for critical fire weather conditions appears low for Sunday. An upper wave currently moving into the northeastern Pacific is forecast to move into the Pacific Northwest over the next 48 hours. As this occurs, surface pressure falls along the West/Pacific Northwest coasts will strengthen southerly winds over the southern Great Basin. Dry conditions are expected across a broad swath of the western and central CONUS Sunday afternoon with RH values in the teens to 20s from CA to the central Plains. However, southerly low-level wind trajectories emanating off of the southern Sierra Nevada and the southern CA desert will support RH reductions into the low teens, and perhaps single digits, across central NV to far southern ID. Winds gusting up to 15-20 mph will likely result in patchy areas of elevated fire weather concerns, but latest ERC analyses suggests fuels are only modestly receptive at this time (ERCs between the 50-75th percentiles). Highlights are withheld given the uncertain fuel status and somewhat localized nature of the threat, but trends will continue to be monitored. The offshore flow regime along the southern CA coast will continue to weaken through the day Sunday, but localized elevated conditions are possibly early Sunday morning for wind-prone locations within the higher terrain. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Nov 11, 2023 2000 UTC Day 1 Convective Outlook

1 year 9 months ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1255 PM CST Sat Nov 11 2023 Valid 112000Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few lightning flashes will be possible across northwest Washington and central Florida today. ...20Z Update... No changes have been made to the 1630Z forecast. ..Squitieri.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1009 AM CST Sat Nov 11 2023/ ...WA... Relatively dry and stable conditions will preclude thunderstorms over most of the CONUS today. However, a few lightning flashes will be possible over northwest WA as a strong westerly upper jet and cold temperatures aloft spread across the region. Lightning has been observed over Vancouver Island this morning, and further activity is possible as the strongest forcing moves eastward this afternoon. ...FL... Other lightning flashes may also occur over portions of central FL this afternoon and early evening. A warm and humid low-level air mass is present, coupled with marginal CAPE values. Despite weak large scale forcing for ascent, diurnal heating and weak sea-breeze convergence will result in scattered showers and perhaps a thunderstorm or two later today. Read more

SPC Nov 11, 2023 2000 UTC Day 1 Convective Outlook

1 year 9 months ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1255 PM CST Sat Nov 11 2023 Valid 112000Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few lightning flashes will be possible across northwest Washington and central Florida today. ...20Z Update... No changes have been made to the 1630Z forecast. ..Squitieri.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1009 AM CST Sat Nov 11 2023/ ...WA... Relatively dry and stable conditions will preclude thunderstorms over most of the CONUS today. However, a few lightning flashes will be possible over northwest WA as a strong westerly upper jet and cold temperatures aloft spread across the region. Lightning has been observed over Vancouver Island this morning, and further activity is possible as the strongest forcing moves eastward this afternoon. ...FL... Other lightning flashes may also occur over portions of central FL this afternoon and early evening. A warm and humid low-level air mass is present, coupled with marginal CAPE values. Despite weak large scale forcing for ascent, diurnal heating and weak sea-breeze convergence will result in scattered showers and perhaps a thunderstorm or two later today. Read more

SPC Nov 11, 2023 2000 UTC Day 1 Convective Outlook

1 year 9 months ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1255 PM CST Sat Nov 11 2023 Valid 112000Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few lightning flashes will be possible across northwest Washington and central Florida today. ...20Z Update... No changes have been made to the 1630Z forecast. ..Squitieri.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1009 AM CST Sat Nov 11 2023/ ...WA... Relatively dry and stable conditions will preclude thunderstorms over most of the CONUS today. However, a few lightning flashes will be possible over northwest WA as a strong westerly upper jet and cold temperatures aloft spread across the region. Lightning has been observed over Vancouver Island this morning, and further activity is possible as the strongest forcing moves eastward this afternoon. ...FL... Other lightning flashes may also occur over portions of central FL this afternoon and early evening. A warm and humid low-level air mass is present, coupled with marginal CAPE values. Despite weak large scale forcing for ascent, diurnal heating and weak sea-breeze convergence will result in scattered showers and perhaps a thunderstorm or two later today. Read more

SPC Nov 11, 2023 2000 UTC Day 1 Convective Outlook

1 year 9 months ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1255 PM CST Sat Nov 11 2023 Valid 112000Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few lightning flashes will be possible across northwest Washington and central Florida today. ...20Z Update... No changes have been made to the 1630Z forecast. ..Squitieri.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1009 AM CST Sat Nov 11 2023/ ...WA... Relatively dry and stable conditions will preclude thunderstorms over most of the CONUS today. However, a few lightning flashes will be possible over northwest WA as a strong westerly upper jet and cold temperatures aloft spread across the region. Lightning has been observed over Vancouver Island this morning, and further activity is possible as the strongest forcing moves eastward this afternoon. ...FL... Other lightning flashes may also occur over portions of central FL this afternoon and early evening. A warm and humid low-level air mass is present, coupled with marginal CAPE values. Despite weak large scale forcing for ascent, diurnal heating and weak sea-breeze convergence will result in scattered showers and perhaps a thunderstorm or two later today. Read more

SPC Nov 11, 2023 2000 UTC Day 1 Convective Outlook

1 year 9 months ago
SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1255 PM CST Sat Nov 11 2023 Valid 112000Z - 121200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few lightning flashes will be possible across northwest Washington and central Florida today. ...20Z Update... No changes have been made to the 1630Z forecast. ..Squitieri.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1009 AM CST Sat Nov 11 2023/ ...WA... Relatively dry and stable conditions will preclude thunderstorms over most of the CONUS today. However, a few lightning flashes will be possible over northwest WA as a strong westerly upper jet and cold temperatures aloft spread across the region. Lightning has been observed over Vancouver Island this morning, and further activity is possible as the strongest forcing moves eastward this afternoon. ...FL... Other lightning flashes may also occur over portions of central FL this afternoon and early evening. A warm and humid low-level air mass is present, coupled with marginal CAPE values. Despite weak large scale forcing for ascent, diurnal heating and weak sea-breeze convergence will result in scattered showers and perhaps a thunderstorm or two later today. Read more

SPC Nov 11, 2023 1730 UTC Day 2 Convective Outlook

1 year 9 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1049 AM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible along the lower to middle Texas coast on Sunday, but no severe threat is expected. ...Synopsis... An upper-level ridge will reinforce surface high pressure and associated cooler, dry air over most of the CONUS tomorrow (Sunday), resulting in static stability and negligible thunderstorm potential. The one exception will be the lower to middle TX coast, where 850 mb warm-air advection atop 55-60F surface dewpoints will promote weak forcing for ascent and scant buoyancy, supporting moist convection and the chance for a few lightning flashes. ..Squitieri.. 11/11/2023 Read more

SPC Nov 11, 2023 1730 UTC Day 2 Convective Outlook

1 year 9 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1049 AM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible along the lower to middle Texas coast on Sunday, but no severe threat is expected. ...Synopsis... An upper-level ridge will reinforce surface high pressure and associated cooler, dry air over most of the CONUS tomorrow (Sunday), resulting in static stability and negligible thunderstorm potential. The one exception will be the lower to middle TX coast, where 850 mb warm-air advection atop 55-60F surface dewpoints will promote weak forcing for ascent and scant buoyancy, supporting moist convection and the chance for a few lightning flashes. ..Squitieri.. 11/11/2023 Read more

SPC Nov 11, 2023 1730 UTC Day 2 Convective Outlook

1 year 9 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1049 AM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible along the lower to middle Texas coast on Sunday, but no severe threat is expected. ...Synopsis... An upper-level ridge will reinforce surface high pressure and associated cooler, dry air over most of the CONUS tomorrow (Sunday), resulting in static stability and negligible thunderstorm potential. The one exception will be the lower to middle TX coast, where 850 mb warm-air advection atop 55-60F surface dewpoints will promote weak forcing for ascent and scant buoyancy, supporting moist convection and the chance for a few lightning flashes. ..Squitieri.. 11/11/2023 Read more

SPC Nov 11, 2023 1730 UTC Day 2 Convective Outlook

1 year 9 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1049 AM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible along the lower to middle Texas coast on Sunday, but no severe threat is expected. ...Synopsis... An upper-level ridge will reinforce surface high pressure and associated cooler, dry air over most of the CONUS tomorrow (Sunday), resulting in static stability and negligible thunderstorm potential. The one exception will be the lower to middle TX coast, where 850 mb warm-air advection atop 55-60F surface dewpoints will promote weak forcing for ascent and scant buoyancy, supporting moist convection and the chance for a few lightning flashes. ..Squitieri.. 11/11/2023 Read more

SPC Nov 11, 2023 1730 UTC Day 2 Convective Outlook

1 year 9 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1049 AM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible along the lower to middle Texas coast on Sunday, but no severe threat is expected. ...Synopsis... An upper-level ridge will reinforce surface high pressure and associated cooler, dry air over most of the CONUS tomorrow (Sunday), resulting in static stability and negligible thunderstorm potential. The one exception will be the lower to middle TX coast, where 850 mb warm-air advection atop 55-60F surface dewpoints will promote weak forcing for ascent and scant buoyancy, supporting moist convection and the chance for a few lightning flashes. ..Squitieri.. 11/11/2023 Read more

SPC Nov 11, 2023 1730 UTC Day 2 Convective Outlook

1 year 9 months ago
SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1049 AM CST Sat Nov 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible along the lower to middle Texas coast on Sunday, but no severe threat is expected. ...Synopsis... An upper-level ridge will reinforce surface high pressure and associated cooler, dry air over most of the CONUS tomorrow (Sunday), resulting in static stability and negligible thunderstorm potential. The one exception will be the lower to middle TX coast, where 850 mb warm-air advection atop 55-60F surface dewpoints will promote weak forcing for ascent and scant buoyancy, supporting moist convection and the chance for a few lightning flashes. ..Squitieri.. 11/11/2023 Read more

SPC Day 1 Fire Weather Outlook

1 year 9 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1032 AM CST Sat Nov 11 2023 Valid 111700Z - 121200Z ...NO CRITICAL AREAS... No changes are needed to the current D1 Fire Weather Outlook. See previous discussion for more information. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1249 AM CST Sat Nov 11 2023/ ...Synopsis... Fire weather concerns are expected to generally remain limited for today across the country with the exception of localized concerns across parts of the central High Plains and southern CA coast. Early-morning surface observations depict weak lee troughing ongoing across the High Plains. This trend should continue through today ahead of an approaching upper-level wave. Westerly downslope flow off the central Rockies will support further drying of an antecedent dry air mass in place over southeast WY to northeast CO. While gradient winds will generally be light, localized elevated fire weather conditions are possible over the WY/CO/NE region where winds could gust as high as 15-20 mph with afternoon RH values in the teens. Along the southern CA coast, an offshore flow regime will gradually abate through the weekend, but will maintain breezy conditions for today. Modest mid/upper-level winds will likely limit the strongest gusts (upwards of 20-40 mph) to the immediate lee of more prominent terrain features along the southern CA coast. Latest surface observations show poor overnight RH recovery, which will be exacerbated through the day by downslope warming/drying. While RH values in the low teens appear probable, the localized nature of the strongest winds should limit the coverage of robust fire weather conditions, and negate the need for highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

1 year 9 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1032 AM CST Sat Nov 11 2023 Valid 111700Z - 121200Z ...NO CRITICAL AREAS... No changes are needed to the current D1 Fire Weather Outlook. See previous discussion for more information. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1249 AM CST Sat Nov 11 2023/ ...Synopsis... Fire weather concerns are expected to generally remain limited for today across the country with the exception of localized concerns across parts of the central High Plains and southern CA coast. Early-morning surface observations depict weak lee troughing ongoing across the High Plains. This trend should continue through today ahead of an approaching upper-level wave. Westerly downslope flow off the central Rockies will support further drying of an antecedent dry air mass in place over southeast WY to northeast CO. While gradient winds will generally be light, localized elevated fire weather conditions are possible over the WY/CO/NE region where winds could gust as high as 15-20 mph with afternoon RH values in the teens. Along the southern CA coast, an offshore flow regime will gradually abate through the weekend, but will maintain breezy conditions for today. Modest mid/upper-level winds will likely limit the strongest gusts (upwards of 20-40 mph) to the immediate lee of more prominent terrain features along the southern CA coast. Latest surface observations show poor overnight RH recovery, which will be exacerbated through the day by downslope warming/drying. While RH values in the low teens appear probable, the localized nature of the strongest winds should limit the coverage of robust fire weather conditions, and negate the need for highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

1 year 9 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1032 AM CST Sat Nov 11 2023 Valid 111700Z - 121200Z ...NO CRITICAL AREAS... No changes are needed to the current D1 Fire Weather Outlook. See previous discussion for more information. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1249 AM CST Sat Nov 11 2023/ ...Synopsis... Fire weather concerns are expected to generally remain limited for today across the country with the exception of localized concerns across parts of the central High Plains and southern CA coast. Early-morning surface observations depict weak lee troughing ongoing across the High Plains. This trend should continue through today ahead of an approaching upper-level wave. Westerly downslope flow off the central Rockies will support further drying of an antecedent dry air mass in place over southeast WY to northeast CO. While gradient winds will generally be light, localized elevated fire weather conditions are possible over the WY/CO/NE region where winds could gust as high as 15-20 mph with afternoon RH values in the teens. Along the southern CA coast, an offshore flow regime will gradually abate through the weekend, but will maintain breezy conditions for today. Modest mid/upper-level winds will likely limit the strongest gusts (upwards of 20-40 mph) to the immediate lee of more prominent terrain features along the southern CA coast. Latest surface observations show poor overnight RH recovery, which will be exacerbated through the day by downslope warming/drying. While RH values in the low teens appear probable, the localized nature of the strongest winds should limit the coverage of robust fire weather conditions, and negate the need for highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

1 year 9 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1032 AM CST Sat Nov 11 2023 Valid 111700Z - 121200Z ...NO CRITICAL AREAS... No changes are needed to the current D1 Fire Weather Outlook. See previous discussion for more information. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1249 AM CST Sat Nov 11 2023/ ...Synopsis... Fire weather concerns are expected to generally remain limited for today across the country with the exception of localized concerns across parts of the central High Plains and southern CA coast. Early-morning surface observations depict weak lee troughing ongoing across the High Plains. This trend should continue through today ahead of an approaching upper-level wave. Westerly downslope flow off the central Rockies will support further drying of an antecedent dry air mass in place over southeast WY to northeast CO. While gradient winds will generally be light, localized elevated fire weather conditions are possible over the WY/CO/NE region where winds could gust as high as 15-20 mph with afternoon RH values in the teens. Along the southern CA coast, an offshore flow regime will gradually abate through the weekend, but will maintain breezy conditions for today. Modest mid/upper-level winds will likely limit the strongest gusts (upwards of 20-40 mph) to the immediate lee of more prominent terrain features along the southern CA coast. Latest surface observations show poor overnight RH recovery, which will be exacerbated through the day by downslope warming/drying. While RH values in the low teens appear probable, the localized nature of the strongest winds should limit the coverage of robust fire weather conditions, and negate the need for highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

1 year 9 months ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1032 AM CST Sat Nov 11 2023 Valid 111700Z - 121200Z ...NO CRITICAL AREAS... No changes are needed to the current D1 Fire Weather Outlook. See previous discussion for more information. ..Thornton.. 11/11/2023 .PREV DISCUSSION... /ISSUED 1249 AM CST Sat Nov 11 2023/ ...Synopsis... Fire weather concerns are expected to generally remain limited for today across the country with the exception of localized concerns across parts of the central High Plains and southern CA coast. Early-morning surface observations depict weak lee troughing ongoing across the High Plains. This trend should continue through today ahead of an approaching upper-level wave. Westerly downslope flow off the central Rockies will support further drying of an antecedent dry air mass in place over southeast WY to northeast CO. While gradient winds will generally be light, localized elevated fire weather conditions are possible over the WY/CO/NE region where winds could gust as high as 15-20 mph with afternoon RH values in the teens. Along the southern CA coast, an offshore flow regime will gradually abate through the weekend, but will maintain breezy conditions for today. Modest mid/upper-level winds will likely limit the strongest gusts (upwards of 20-40 mph) to the immediate lee of more prominent terrain features along the southern CA coast. Latest surface observations show poor overnight RH recovery, which will be exacerbated through the day by downslope warming/drying. While RH values in the low teens appear probable, the localized nature of the strongest winds should limit the coverage of robust fire weather conditions, and negate the need for highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more