Aggregator

SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CST Thu Dec 21 2023 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are expected from the Southeast into the central and southern Plains on Saturday. Severe thunderstorms are not currently anticipated. ...Synopsis... An upper low is forecast to begin the period over eastern AZ before devolving further into an open wave while continuing northeastward over the remainder of the Southwest and into the southern/central High Plains. Another shortwave trough is expected to follow quickly in the wake of the lead wave, progressing southeastward across the Great Basin and into the Four Corner. This overall evolution will result in a persistence of upper troughing over the Rockies and High Plains, with southwesterly flow aloft being maintained across the southern Plains. Showers and isolated thunderstorms will likely be ongoing near and ahead of the southern-stream upper low, from eastern AZ across NM and into far west TX. Additional showers and thunderstorms are expected to develop during the afternoon across the southern High Plains as the low moves northeastward. Cool surface temperatures and modest low-level moisture will temper buoyancy, but enhanced mid-level flow will contribute to enough shear for storm organization. As a result, any more robust, sustained updrafts may be able to produce hail. However, the current expectation is for the limited buoyancy to keep the severe potential too isolated to introduce any severe probabilities. Showers and thunderstorm will continue to expand eastward into more of the southern Plains during the evening and overnight, but limited buoyancy and shear should limit the severe potential with this activity as well. ..Mosier.. 12/21/2023 Read more

SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CST Thu Dec 21 2023 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are expected from the Southeast into the central and southern Plains on Saturday. Severe thunderstorms are not currently anticipated. ...Synopsis... An upper low is forecast to begin the period over eastern AZ before devolving further into an open wave while continuing northeastward over the remainder of the Southwest and into the southern/central High Plains. Another shortwave trough is expected to follow quickly in the wake of the lead wave, progressing southeastward across the Great Basin and into the Four Corner. This overall evolution will result in a persistence of upper troughing over the Rockies and High Plains, with southwesterly flow aloft being maintained across the southern Plains. Showers and isolated thunderstorms will likely be ongoing near and ahead of the southern-stream upper low, from eastern AZ across NM and into far west TX. Additional showers and thunderstorms are expected to develop during the afternoon across the southern High Plains as the low moves northeastward. Cool surface temperatures and modest low-level moisture will temper buoyancy, but enhanced mid-level flow will contribute to enough shear for storm organization. As a result, any more robust, sustained updrafts may be able to produce hail. However, the current expectation is for the limited buoyancy to keep the severe potential too isolated to introduce any severe probabilities. Showers and thunderstorm will continue to expand eastward into more of the southern Plains during the evening and overnight, but limited buoyancy and shear should limit the severe potential with this activity as well. ..Mosier.. 12/21/2023 Read more

SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CST Thu Dec 21 2023 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are expected from the Southeast into the central and southern Plains on Saturday. Severe thunderstorms are not currently anticipated. ...Synopsis... An upper low is forecast to begin the period over eastern AZ before devolving further into an open wave while continuing northeastward over the remainder of the Southwest and into the southern/central High Plains. Another shortwave trough is expected to follow quickly in the wake of the lead wave, progressing southeastward across the Great Basin and into the Four Corner. This overall evolution will result in a persistence of upper troughing over the Rockies and High Plains, with southwesterly flow aloft being maintained across the southern Plains. Showers and isolated thunderstorms will likely be ongoing near and ahead of the southern-stream upper low, from eastern AZ across NM and into far west TX. Additional showers and thunderstorms are expected to develop during the afternoon across the southern High Plains as the low moves northeastward. Cool surface temperatures and modest low-level moisture will temper buoyancy, but enhanced mid-level flow will contribute to enough shear for storm organization. As a result, any more robust, sustained updrafts may be able to produce hail. However, the current expectation is for the limited buoyancy to keep the severe potential too isolated to introduce any severe probabilities. Showers and thunderstorm will continue to expand eastward into more of the southern Plains during the evening and overnight, but limited buoyancy and shear should limit the severe potential with this activity as well. ..Mosier.. 12/21/2023 Read more

SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CST Thu Dec 21 2023 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are expected from the Southeast into the central and southern Plains on Saturday. Severe thunderstorms are not currently anticipated. ...Synopsis... An upper low is forecast to begin the period over eastern AZ before devolving further into an open wave while continuing northeastward over the remainder of the Southwest and into the southern/central High Plains. Another shortwave trough is expected to follow quickly in the wake of the lead wave, progressing southeastward across the Great Basin and into the Four Corner. This overall evolution will result in a persistence of upper troughing over the Rockies and High Plains, with southwesterly flow aloft being maintained across the southern Plains. Showers and isolated thunderstorms will likely be ongoing near and ahead of the southern-stream upper low, from eastern AZ across NM and into far west TX. Additional showers and thunderstorms are expected to develop during the afternoon across the southern High Plains as the low moves northeastward. Cool surface temperatures and modest low-level moisture will temper buoyancy, but enhanced mid-level flow will contribute to enough shear for storm organization. As a result, any more robust, sustained updrafts may be able to produce hail. However, the current expectation is for the limited buoyancy to keep the severe potential too isolated to introduce any severe probabilities. Showers and thunderstorm will continue to expand eastward into more of the southern Plains during the evening and overnight, but limited buoyancy and shear should limit the severe potential with this activity as well. ..Mosier.. 12/21/2023 Read more

SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0226 AM CST Thu Dec 21 2023 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are expected from the Southeast into the central and southern Plains on Saturday. Severe thunderstorms are not currently anticipated. ...Synopsis... An upper low is forecast to begin the period over eastern AZ before devolving further into an open wave while continuing northeastward over the remainder of the Southwest and into the southern/central High Plains. Another shortwave trough is expected to follow quickly in the wake of the lead wave, progressing southeastward across the Great Basin and into the Four Corner. This overall evolution will result in a persistence of upper troughing over the Rockies and High Plains, with southwesterly flow aloft being maintained across the southern Plains. Showers and isolated thunderstorms will likely be ongoing near and ahead of the southern-stream upper low, from eastern AZ across NM and into far west TX. Additional showers and thunderstorms are expected to develop during the afternoon across the southern High Plains as the low moves northeastward. Cool surface temperatures and modest low-level moisture will temper buoyancy, but enhanced mid-level flow will contribute to enough shear for storm organization. As a result, any more robust, sustained updrafts may be able to produce hail. However, the current expectation is for the limited buoyancy to keep the severe potential too isolated to introduce any severe probabilities. Showers and thunderstorm will continue to expand eastward into more of the southern Plains during the evening and overnight, but limited buoyancy and shear should limit the severe potential with this activity as well. ..Mosier.. 12/21/2023 Read more

A Christmas tree grower in Clackamas County planted 600 noble firs and have fewer than 10 still alive after rains ended in mid-May rather than continuing until the Fourth of July. KATU TV 2 (Portland, Ore.), Dec 20, 2023

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0102 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the Intermountain West, encouraging the continuance of surface lee-troughing and chances for rain over the Mississippi Valley as well as parts of the Southwest. Over the rest of the CONUS, weak surface winds or cool temperatures will mitigate significant wildfire-spread potential. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0102 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the Intermountain West, encouraging the continuance of surface lee-troughing and chances for rain over the Mississippi Valley as well as parts of the Southwest. Over the rest of the CONUS, weak surface winds or cool temperatures will mitigate significant wildfire-spread potential. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0102 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the Intermountain West, encouraging the continuance of surface lee-troughing and chances for rain over the Mississippi Valley as well as parts of the Southwest. Over the rest of the CONUS, weak surface winds or cool temperatures will mitigate significant wildfire-spread potential. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0102 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the Intermountain West, encouraging the continuance of surface lee-troughing and chances for rain over the Mississippi Valley as well as parts of the Southwest. Over the rest of the CONUS, weak surface winds or cool temperatures will mitigate significant wildfire-spread potential. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0102 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the Intermountain West, encouraging the continuance of surface lee-troughing and chances for rain over the Mississippi Valley as well as parts of the Southwest. Over the rest of the CONUS, weak surface winds or cool temperatures will mitigate significant wildfire-spread potential. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Thu Dec 21 2023 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the western and central U.S. today, promoting appreciable precipitation accumulations over California and the Southern Plains. Meanwhile, dry air will linger over the Tennessee Valley into the Southeast. However, surface winds are expected to be weak, limiting significant wildfire-spread potential. Fire-weather conditions should also remain quiescent over the rest of the CONUS as well. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Thu Dec 21 2023 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the western and central U.S. today, promoting appreciable precipitation accumulations over California and the Southern Plains. Meanwhile, dry air will linger over the Tennessee Valley into the Southeast. However, surface winds are expected to be weak, limiting significant wildfire-spread potential. Fire-weather conditions should also remain quiescent over the rest of the CONUS as well. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Thu Dec 21 2023 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the western and central U.S. today, promoting appreciable precipitation accumulations over California and the Southern Plains. Meanwhile, dry air will linger over the Tennessee Valley into the Southeast. However, surface winds are expected to be weak, limiting significant wildfire-spread potential. Fire-weather conditions should also remain quiescent over the rest of the CONUS as well. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Thu Dec 21 2023 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the western and central U.S. today, promoting appreciable precipitation accumulations over California and the Southern Plains. Meanwhile, dry air will linger over the Tennessee Valley into the Southeast. However, surface winds are expected to be weak, limiting significant wildfire-spread potential. Fire-weather conditions should also remain quiescent over the rest of the CONUS as well. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Thu Dec 21 2023 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the western and central U.S. today, promoting appreciable precipitation accumulations over California and the Southern Plains. Meanwhile, dry air will linger over the Tennessee Valley into the Southeast. However, surface winds are expected to be weak, limiting significant wildfire-spread potential. Fire-weather conditions should also remain quiescent over the rest of the CONUS as well. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0101 AM CST Thu Dec 21 2023 Valid 211200Z - 221200Z ...NO CRITICAL AREAS... ...Synopsis... Multiple mid-level troughs will traverse the western and central U.S. today, promoting appreciable precipitation accumulations over California and the Southern Plains. Meanwhile, dry air will linger over the Tennessee Valley into the Southeast. However, surface winds are expected to be weak, limiting significant wildfire-spread potential. Fire-weather conditions should also remain quiescent over the rest of the CONUS as well. ..Squitieri.. 12/21/2023 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1253 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHEAST ARIZONA AND FAR SOUTHWEST NEW MEXICO... ...SUMMARY... Isolated thunderstorms are possible on Friday from southern California across much of the Southwest. Some hail is possible across southeast Arizona and far southwest New Mexico Friday afternoon and evening. ...Synopsis and Discussion... An upper low is expected to be centered off the southern CA coast early Friday morning. This low is forecast to steadily progress eastward throughout the day, reaching eastern AZ by early Saturday morning. Strong forcing for ascent, cold mid-level temperatures, and increased mid-level moisture will accompany this system, supporting the potential for thunderstorms across much of southern CA and Southwest. Numerous showers, with isolated embedded thunderstorms, will likely be ongoing Friday morning across much of southern CA. Precipitation is expected to gradually shift eastward with parent upper system, ending with showers and isolated thunderstorms over much of NM and far west TX Saturday morning. Modest buoyancy should limit updraft duration and strength within much of this activity. However, favorable overlap between buoyancy, increasing mid-level flow, and large-scale ascent appears likely across southeast AZ and adjacent far southwest NM. Here, a few stronger storms capable of hail appear possible late Friday afternoon through Friday evening. A few afternoon thunderstorms are also possible farther east across south TX ahead of a low-amplitude shortwave trough progressing eastward across central Mexico. An isolated thunderstorm or two may also occur early Saturday morning from the Middle TX Coast into central TX as strengthening low-level flow contributes to modest warm-air advection. ..Mosier.. 12/21/2023 Read more

SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1253 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHEAST ARIZONA AND FAR SOUTHWEST NEW MEXICO... ...SUMMARY... Isolated thunderstorms are possible on Friday from southern California across much of the Southwest. Some hail is possible across southeast Arizona and far southwest New Mexico Friday afternoon and evening. ...Synopsis and Discussion... An upper low is expected to be centered off the southern CA coast early Friday morning. This low is forecast to steadily progress eastward throughout the day, reaching eastern AZ by early Saturday morning. Strong forcing for ascent, cold mid-level temperatures, and increased mid-level moisture will accompany this system, supporting the potential for thunderstorms across much of southern CA and Southwest. Numerous showers, with isolated embedded thunderstorms, will likely be ongoing Friday morning across much of southern CA. Precipitation is expected to gradually shift eastward with parent upper system, ending with showers and isolated thunderstorms over much of NM and far west TX Saturday morning. Modest buoyancy should limit updraft duration and strength within much of this activity. However, favorable overlap between buoyancy, increasing mid-level flow, and large-scale ascent appears likely across southeast AZ and adjacent far southwest NM. Here, a few stronger storms capable of hail appear possible late Friday afternoon through Friday evening. A few afternoon thunderstorms are also possible farther east across south TX ahead of a low-amplitude shortwave trough progressing eastward across central Mexico. An isolated thunderstorm or two may also occur early Saturday morning from the Middle TX Coast into central TX as strengthening low-level flow contributes to modest warm-air advection. ..Mosier.. 12/21/2023 Read more

SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1253 AM CST Thu Dec 21 2023 Valid 221200Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS SOUTHEAST ARIZONA AND FAR SOUTHWEST NEW MEXICO... ...SUMMARY... Isolated thunderstorms are possible on Friday from southern California across much of the Southwest. Some hail is possible across southeast Arizona and far southwest New Mexico Friday afternoon and evening. ...Synopsis and Discussion... An upper low is expected to be centered off the southern CA coast early Friday morning. This low is forecast to steadily progress eastward throughout the day, reaching eastern AZ by early Saturday morning. Strong forcing for ascent, cold mid-level temperatures, and increased mid-level moisture will accompany this system, supporting the potential for thunderstorms across much of southern CA and Southwest. Numerous showers, with isolated embedded thunderstorms, will likely be ongoing Friday morning across much of southern CA. Precipitation is expected to gradually shift eastward with parent upper system, ending with showers and isolated thunderstorms over much of NM and far west TX Saturday morning. Modest buoyancy should limit updraft duration and strength within much of this activity. However, favorable overlap between buoyancy, increasing mid-level flow, and large-scale ascent appears likely across southeast AZ and adjacent far southwest NM. Here, a few stronger storms capable of hail appear possible late Friday afternoon through Friday evening. A few afternoon thunderstorms are also possible farther east across south TX ahead of a low-amplitude shortwave trough progressing eastward across central Mexico. An isolated thunderstorm or two may also occur early Saturday morning from the Middle TX Coast into central TX as strengthening low-level flow contributes to modest warm-air advection. ..Mosier.. 12/21/2023 Read more