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This is an automated feed from the Storm Prediction Center that post the following products with images:
- Tornado/Severe Thunderstorm Watches - Watch number and the link to the watch page and watch status page if issued.
- Mesoscale Discussions - MD number, images, and link to page
- Convective Outlooks - Day 1, 2, 3, and 4-8
- Fire Weather Outlooks - 1,2, and 3-8
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SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1228 AM CST Sat Dec 23 2023 Valid 241200Z - 251200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorm potential appears low on Sunday. ...Southern Plains to Lower MS Valley... A shortwave upper trough will pivot east on Sunday from the southern Plains to the Lower MS Valley. At the surface, low pressure over OK/KS at the beginning of the period will weaken with time, becoming elongated from the Ozarks to LA by late afternoon into the evening. A line and/or cluster of thunderstorms will likely be ongoing Sunday morning from central/eastern OK so…
Last reply by NorthGeorgiaWX, -
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SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1141 PM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR THE SOUTHERN HIGH PLAINS... ...SUMMARY... Isolated severe thunderstorms are possible across parts of the southern High Plains, mainly this afternoon and evening. ...Southern High Plains... A large-scale mid- to upper-level trough will move east from the Great Basin/Desert Southwest into the central and southern Rockies and adjacent High Plains during the period. A lead mid-level speed max will move through the base of the larger-scale trough and overspread the south…
Last reply by NorthGeorgiaWX, -
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SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1141 PM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR THE SOUTHERN HIGH PLAINS... ...SUMMARY... Isolated severe thunderstorms are possible across parts of the southern High Plains, mainly this afternoon and evening. ...Southern High Plains... A large-scale mid- to upper-level trough will move east from the Great Basin/Desert Southwest into the central and southern Rockies and adjacent High Plains during the period. A lead mid-level speed max will move through the base of the larger-scale trough and overspread the south…
Last reply by NorthGeorgiaWX, -
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SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0657 PM CST Fri Dec 22 2023 Valid 230100Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR SOUTHERN ARIZONA... ...SUMMARY... Isolated severe gusts are possible tonight across southern Arizona. ...Synopsis... Water-vapor imagery early this evening shows a mid-level low over the California/Mexico border and it will move east along the Arizona/Sonora border by early Saturday morning. Relatively cool mid-level temperatures (-22 deg C at 500 mb) were observed this evening on the 00z San Diego raob. These cool temperatures aloft are contributing to weak buoyan…
Last reply by NorthGeorgiaWX, -
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SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0657 PM CST Fri Dec 22 2023 Valid 230100Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR SOUTHERN ARIZONA... ...SUMMARY... Isolated severe gusts are possible tonight across southern Arizona. ...Synopsis... Water-vapor imagery early this evening shows a mid-level low over the California/Mexico border and it will move east along the Arizona/Sonora border by early Saturday morning. Relatively cool mid-level temperatures (-22 deg C at 500 mb) were observed this evening on the 00z San Diego raob. These cool temperatures aloft are contributing to weak buoyan…
Last reply by NorthGeorgiaWX, -
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No Mesoscale Discussions are in effect as of Fri Dec 22 22:31:02 UTC 2023.View the full article
Last reply by NorthGeorgiaWX, -
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SPC Day 3-8 Fire Weather Outlook Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0259 PM CST Fri Dec 22 2023 Valid 241200Z - 301200Z The potential for critical fire-weather conditions appears low through the extended forecast period. A highly amplified midlevel trough will evolve into an expansive closed low over the central CONUS during the first half of the extended period. At the same time, a related frontal system will track eastward from the southern Plains into the Mid-MS Valley before occluding over the Midwest. On the backside of this system, periods of locally dry and breezy conditions are possible across portions of the south…
Last reply by NorthGeorgiaWX, -
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SPC Day 3-8 Fire Weather Outlook Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0259 PM CST Fri Dec 22 2023 Valid 241200Z - 301200Z The potential for critical fire-weather conditions appears low through the extended forecast period. A highly amplified midlevel trough will evolve into an expansive closed low over the central CONUS during the first half of the extended period. At the same time, a related frontal system will track eastward from the southern Plains into the Mid-MS Valley before occluding over the Midwest. On the backside of this system, periods of locally dry and breezy conditions are possible across portions of the south…
Last reply by NorthGeorgiaWX, -
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MD 2339 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR SOUTHWEST AZ AND FAR SOUTHEAST CA Mesoscale Discussion 2339 NWS Storm Prediction Center Norman OK 0231 PM CST Fri Dec 22 2023 Areas affected...Southwest AZ and far southeast CA Concerning...Severe potential...Watch unlikely Valid 222031Z - 222230Z Probability of Watch Issuance...5 percent SUMMARY...Small to marginally severe hail will be possible in the more robust storms this afternoon. Severe thunderstorm watch issuance is not expected. DISCUSSION...A trio of convective swaths persist downstream of a slow-moving mid/upper low just offshore of the CA/Baja CA border. The intermediate of these three…
Last reply by NorthGeorgiaWX, -
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0148 PM CST Fri Dec 22 2023 Valid 222000Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTHERN ARIZONA AND INTERIOR SOUTHERN CALIFORNIA... ...SUMMARY... Isolated hail and gusty winds remain possible this afternoon and evening across parts of southern Arizona and vicinity. ...20Z Update... No changes have been made to the Marginal Risk. The potential for isolated hail and gusty winds continues with any robust convection that can move from northwest Mexico into southern AZ this afternoon and evening. ..Gleason.. 12/22/2023 .PREV DISCUSSION…
Last reply by NorthGeorgiaWX, -
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0148 PM CST Fri Dec 22 2023 Valid 222000Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTHERN ARIZONA AND INTERIOR SOUTHERN CALIFORNIA... ...SUMMARY... Isolated hail and gusty winds remain possible this afternoon and evening across parts of southern Arizona and vicinity. ...20Z Update... No changes have been made to the Marginal Risk. The potential for isolated hail and gusty winds continues with any robust convection that can move from northwest Mexico into southern AZ this afternoon and evening. ..Gleason.. 12/22/2023 .PREV DISCUSSION…
Last reply by NorthGeorgiaWX, -
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0148 PM CST Fri Dec 22 2023 Valid 222000Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTHERN ARIZONA AND INTERIOR SOUTHERN CALIFORNIA... ...SUMMARY... Isolated hail and gusty winds remain possible this afternoon and evening across parts of southern Arizona and vicinity. ...20Z Update... No changes have been made to the Marginal Risk. The potential for isolated hail and gusty winds continues with any robust convection that can move from northwest Mexico into southern AZ this afternoon and evening. ..Gleason.. 12/22/2023 .PREV DISCUSSION…
Last reply by NorthGeorgiaWX, -
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SPC Day 2 Fire Weather Outlook Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0103 PM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...NO CRITICAL AREAS... The forecast remains on track. For details, see the previous discussion below. ..Weinman.. 12/22/2023 .PREV DISCUSSION... /ISSUED 1157 PM CST Thu Dec 21 2023/ ...Synopsis... Some breezy conditions are likely on Saturday across the central Plains and Southwest as a lee cyclone develops. However, significant moisture will also accompany this cyclone with widespread wetting rain expected. Elsewhere, fuels remain moist with cool and/or moist conditions. Therefore, fire-weather conditions…
Last reply by NorthGeorgiaWX, -
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SPC Day 2 Fire Weather Outlook Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0103 PM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...NO CRITICAL AREAS... The forecast remains on track. For details, see the previous discussion below. ..Weinman.. 12/22/2023 .PREV DISCUSSION... /ISSUED 1157 PM CST Thu Dec 21 2023/ ...Synopsis... Some breezy conditions are likely on Saturday across the central Plains and Southwest as a lee cyclone develops. However, significant moisture will also accompany this cyclone with widespread wetting rain expected. Elsewhere, fuels remain moist with cool and/or moist conditions. Therefore, fire-weather conditions…
Last reply by NorthGeorgiaWX, -
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN HIGH PLAINS... ...SUMMARY... Isolated severe thunderstorms capable of producing hail and strong/gusty winds appear possible across parts of the southern High Plains, mainly Saturday afternoon and evening. ...Southern High Plains... Large-scale upper troughing will encompass much of the western states on Saturday. A southern-stream shortwave trough is expected to move eastward from the Southwest across the southern/central High Plans through t…
Last reply by NorthGeorgiaWX, -
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN HIGH PLAINS... ...SUMMARY... Isolated severe thunderstorms capable of producing hail and strong/gusty winds appear possible across parts of the southern High Plains, mainly Saturday afternoon and evening. ...Southern High Plains... Large-scale upper troughing will encompass much of the western states on Saturday. A southern-stream shortwave trough is expected to move eastward from the Southwest across the southern/central High Plans through t…
Last reply by NorthGeorgiaWX, -
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN HIGH PLAINS... ...SUMMARY... Isolated severe thunderstorms capable of producing hail and strong/gusty winds appear possible across parts of the southern High Plains, mainly Saturday afternoon and evening. ...Southern High Plains... Large-scale upper troughing will encompass much of the western states on Saturday. A southern-stream shortwave trough is expected to move eastward from the Southwest across the southern/central High Plans through t…
Last reply by NorthGeorgiaWX, -
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Fri Dec 22 2023 Valid 231200Z - 241200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE SOUTHERN HIGH PLAINS... ...SUMMARY... Isolated severe thunderstorms capable of producing hail and strong/gusty winds appear possible across parts of the southern High Plains, mainly Saturday afternoon and evening. ...Southern High Plains... Large-scale upper troughing will encompass much of the western states on Saturday. A southern-stream shortwave trough is expected to move eastward from the Southwest across the southern/central High Plans through t…
Last reply by NorthGeorgiaWX, -
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SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1022 AM CST Fri Dec 22 2023 Valid 221630Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS PARTS OF SOUTHEAST CALIFORNIA AND SOUTHERN ARIZONA... ...SUMMARY... Isolated large hail and strong-severe gusts are possible from midday into evening across parts of southern Arizona and vicinity. ...Southwest US... Morning water vapor loop shows a compact upper-low off the coast to the southwest of San Diego, CA. A 70+ knot mid-level jet max is rotating around the base of the low, and will overspread northwest Mexico and into southern …
Last reply by NorthGeorgiaWX, -
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SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1022 AM CST Fri Dec 22 2023 Valid 221630Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS PARTS OF SOUTHEAST CALIFORNIA AND SOUTHERN ARIZONA... ...SUMMARY... Isolated large hail and strong-severe gusts are possible from midday into evening across parts of southern Arizona and vicinity. ...Southwest US... Morning water vapor loop shows a compact upper-low off the coast to the southwest of San Diego, CA. A 70+ knot mid-level jet max is rotating around the base of the low, and will overspread northwest Mexico and into southern …
Last reply by NorthGeorgiaWX, -
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SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1022 AM CST Fri Dec 22 2023 Valid 221630Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS PARTS OF SOUTHEAST CALIFORNIA AND SOUTHERN ARIZONA... ...SUMMARY... Isolated large hail and strong-severe gusts are possible from midday into evening across parts of southern Arizona and vicinity. ...Southwest US... Morning water vapor loop shows a compact upper-low off the coast to the southwest of San Diego, CA. A 70+ knot mid-level jet max is rotating around the base of the low, and will overspread northwest Mexico and into southern …
Last reply by NorthGeorgiaWX, -
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SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1022 AM CST Fri Dec 22 2023 Valid 221630Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING ACROSS PARTS OF SOUTHEAST CALIFORNIA AND SOUTHERN ARIZONA... ...SUMMARY... Isolated large hail and strong-severe gusts are possible from midday into evening across parts of southern Arizona and vicinity. ...Southwest US... Morning water vapor loop shows a compact upper-low off the coast to the southwest of San Diego, CA. A 70+ knot mid-level jet max is rotating around the base of the low, and will overspread northwest Mexico and into southern …
Last reply by NorthGeorgiaWX, -
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SPC Day 1 Fire Weather Outlook Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1023 AM CST Fri Dec 22 2023 Valid 221700Z - 231200Z ...NO CRITICAL AREAS... The forecast remains on track. For details, see the previous discussion below. ..Weinman.. 12/22/2023 .PREV DISCUSSION... /ISSUED 1157 PM CST Thu Dec 21 2023/ ...Synopsis... Fuels remain mostly moist across the CONUS. In addition, cool and/or dry conditions will prevail today across most of the CONUS. Therefore, fire-weather concerns remain minimal. Wetting rain and mountain snow is expected across Arizona today which will further delay any fire-weather concerns across the region d…
Last reply by NorthGeorgiaWX, -
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SPC Day 1 Fire Weather Outlook Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1023 AM CST Fri Dec 22 2023 Valid 221700Z - 231200Z ...NO CRITICAL AREAS... The forecast remains on track. For details, see the previous discussion below. ..Weinman.. 12/22/2023 .PREV DISCUSSION... /ISSUED 1157 PM CST Thu Dec 21 2023/ ...Synopsis... Fuels remain mostly moist across the CONUS. In addition, cool and/or dry conditions will prevail today across most of the CONUS. Therefore, fire-weather concerns remain minimal. Wetting rain and mountain snow is expected across Arizona today which will further delay any fire-weather concerns across the region d…
Last reply by NorthGeorgiaWX, -
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SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0653 AM CST Fri Dec 22 2023 Valid 221300Z - 231200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF SOUTHERN ARIZONA... ...SUMMARY... Isolated large hail and strong-severe gusts are possible from midday into evening across parts of southern Arizona. ...Synopsis... A closed, mid/upper-level cyclone was apparent in moisture-channel imagery offshore from southern CA and northern Baja -- centered about 200-225 nm west-southwest of SAN. Separately, a strong, northern-stream shortwave trough was evident just offshore from the Pacific Northwest. The northern…
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