Storm Prediction Center RSS Feed
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 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0638 AM CST Tue Dec 12 2023 Valid 121300Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated non-severe thunderstorms will be possible tonight across west Texas and southeast New Mexico. ...Synopsis... Within a southern stream, a midlevel shortwave trough will move southeastward over NV toward northwest AZ by early Wednesday. Farther east, a modifying air mass will begin to return to south TX and the lower Rio Grande Valley, though moistening farther northwest into west TX/southeast NM will likely occur near and above the 700 mb level. Midlevel …
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SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0638 AM CST Tue Dec 12 2023 Valid 121300Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated non-severe thunderstorms will be possible tonight across west Texas and southeast New Mexico. ...Synopsis... Within a southern stream, a midlevel shortwave trough will move southeastward over NV toward northwest AZ by early Wednesday. Farther east, a modifying air mass will begin to return to south TX and the lower Rio Grande Valley, though moistening farther northwest into west TX/southeast NM will likely occur near and above the 700 mb level. Midlevel …
Last reply by NorthGeorgiaWX, -
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SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0638 AM CST Tue Dec 12 2023 Valid 121300Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated non-severe thunderstorms will be possible tonight across west Texas and southeast New Mexico. ...Synopsis... Within a southern stream, a midlevel shortwave trough will move southeastward over NV toward northwest AZ by early Wednesday. Farther east, a modifying air mass will begin to return to south TX and the lower Rio Grande Valley, though moistening farther northwest into west TX/southeast NM will likely occur near and above the 700 mb level. Midlevel …
Last reply by NorthGeorgiaWX, -
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Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0355 AM CST Tue Dec 12 2023 Valid 151200Z - 201200Z ...DISCUSSION... An area-of-interest for increasing severe potential exists during D5-7 over the eastern Gulf to South Atlantic States. Confidence is too low to warrant a 15 percent severe probability highlight for a specific day and area. 00Z deterministic guidance trends have been to indicate phasing of the southern-stream shortwave trough with a northern-stream Alberta Clipper, across the central to eastern states. This evolution may support strong cyclogenesis over the eastern Gulf to on/off the South Atlantic Coast this wee…
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Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0355 AM CST Tue Dec 12 2023 Valid 151200Z - 201200Z ...DISCUSSION... An area-of-interest for increasing severe potential exists during D5-7 over the eastern Gulf to South Atlantic States. Confidence is too low to warrant a 15 percent severe probability highlight for a specific day and area. 00Z deterministic guidance trends have been to indicate phasing of the southern-stream shortwave trough with a northern-stream Alberta Clipper, across the central to eastern states. This evolution may support strong cyclogenesis over the eastern Gulf to on/off the South Atlantic Coast this wee…
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Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0355 AM CST Tue Dec 12 2023 Valid 151200Z - 201200Z ...DISCUSSION... An area-of-interest for increasing severe potential exists during D5-7 over the eastern Gulf to South Atlantic States. Confidence is too low to warrant a 15 percent severe probability highlight for a specific day and area. 00Z deterministic guidance trends have been to indicate phasing of the southern-stream shortwave trough with a northern-stream Alberta Clipper, across the central to eastern states. This evolution may support strong cyclogenesis over the eastern Gulf to on/off the South Atlantic Coast this wee…
Last reply by NorthGeorgiaWX, -
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SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0228 AM CST Tue Dec 12 2023 Valid 141200Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Thursday. ...NM and TX... A shortwave trough will continue east across NM into northwest TX by early Friday. A persistent low-level warm theta-e advection regime in conjunction with mid-level DCVA/height falls ahead of the trough will support a nearly continuous swath of elevated convection, shifting east from NM and west TX into central TX by Thursday night. Elevated buoyancy will remain meager, suggesting that thunderstorm…
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SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0228 AM CST Tue Dec 12 2023 Valid 141200Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Thursday. ...NM and TX... A shortwave trough will continue east across NM into northwest TX by early Friday. A persistent low-level warm theta-e advection regime in conjunction with mid-level DCVA/height falls ahead of the trough will support a nearly continuous swath of elevated convection, shifting east from NM and west TX into central TX by Thursday night. Elevated buoyancy will remain meager, suggesting that thunderstorm…
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SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0228 AM CST Tue Dec 12 2023 Valid 141200Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Thursday. ...NM and TX... A shortwave trough will continue east across NM into northwest TX by early Friday. A persistent low-level warm theta-e advection regime in conjunction with mid-level DCVA/height falls ahead of the trough will support a nearly continuous swath of elevated convection, shifting east from NM and west TX into central TX by Thursday night. Elevated buoyancy will remain meager, suggesting that thunderstorm…
Last reply by NorthGeorgiaWX, -
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SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0228 AM CST Tue Dec 12 2023 Valid 141200Z - 151200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Thursday. ...NM and TX... A shortwave trough will continue east across NM into northwest TX by early Friday. A persistent low-level warm theta-e advection regime in conjunction with mid-level DCVA/height falls ahead of the trough will support a nearly continuous swath of elevated convection, shifting east from NM and west TX into central TX by Thursday night. Elevated buoyancy will remain meager, suggesting that thunderstorm…
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 0150 AM CST Tue Dec 12 2023 Valid 131200Z - 141200Z ...NO CRITICAL AREAS... ...Synopsis... A cutoff low in the lower Colorado River Valley will shift into the Four Corners and become more of an open wave on Wednesday. With a strong trough exiting the Northeast by the end of the period, surface high pressure will intensify in the East with some maintenance of high pressure within the Great Basin. Cool temperatures and light winds over the driest fuels will again preclude fire weather concerns for most of the CONUS. Offshore flow will continue across southern Cal…
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SPC Day 2 Fire Weather Outlook Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0150 AM CST Tue Dec 12 2023 Valid 131200Z - 141200Z ...NO CRITICAL AREAS... ...Synopsis... A cutoff low in the lower Colorado River Valley will shift into the Four Corners and become more of an open wave on Wednesday. With a strong trough exiting the Northeast by the end of the period, surface high pressure will intensify in the East with some maintenance of high pressure within the Great Basin. Cool temperatures and light winds over the driest fuels will again preclude fire weather concerns for most of the CONUS. Offshore flow will continue across southern Cal…
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 0144 AM CST Tue Dec 12 2023 Valid 121200Z - 131200Z ...NO CRITICAL AREAS... ...Synopsis... Surface high pressure will be the dominant feature across much of the CONUS today. Stronger upper-level winds will be relegated to the Upper Midwest and Northeast due to a strong cyclone in eastern Canada. Cooler temperatures and light winds over dry fuels will keep fire weather minimal for most areas. Some increase in offshore winds will be possible in southern California. RH recovery overnight will likely be enough to mitigate fire weather concerns as winds increase lat…
Last reply by NorthGeorgiaWX, -
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SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1254 AM CST Tue Dec 12 2023 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast for Wednesday, but sub-severe hail will be possible over a portion of central to south New Mexico on Wednesday night. ...Southwest... A shortwave trough initially digging over the Lower CO Valley will pivot and drift east across AZ through the period. Downstream, a broad low-level warm theta-e advection regime will persist across NM and west TX as a modified airmass emanates north-northwest from the Lower Rio Grande Valley. Ele…
Last reply by NorthGeorgiaWX, -
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SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1254 AM CST Tue Dec 12 2023 Valid 131200Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast for Wednesday, but sub-severe hail will be possible over a portion of central to south New Mexico on Wednesday night. ...Southwest... A shortwave trough initially digging over the Lower CO Valley will pivot and drift east across AZ through the period. Downstream, a broad low-level warm theta-e advection regime will persist across NM and west TX as a modified airmass emanates north-northwest from the Lower Rio Grande Valley. Ele…
Last reply by NorthGeorgiaWX, -
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SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1153 PM CST Mon Dec 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated non-severe thunderstorms will be possible this afternoon and evening across parts of west Texas and southeast New Mexico. ...DISCUSSION... An upper-level trough will move across the Great Lakes region and Ohio Valley today, as a shortwave ridge moves into the southern and central High Plains. Further to the west, an upper-level trough will move into southern California. Southwesterly mid-level flow will be located from the Desert Southwest into the souther…
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SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0641 PM CST Mon Dec 11 2023 Valid 120100Z - 121200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected in the U.S. through tonight. ...DISCUSSION... An upper-level trough will move eastward across the Northeast tonight, as west to northwest mid-level flow remains over much of the remainder of the U.S. At the surface, a large area of high pressure from the Ohio Valley southwestward into the lower Mississippi Valley will suppress moisture return. The relatively dry and cool airmass associated with the high will make thunderstorms unlikely throu…
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SPC Day 3-8 Fire Weather Outlook Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0326 PM CST Mon Dec 11 2023 Valid 131200Z - 191200Z Fire weather potential remains low for the extended period. An expansive surface high will slowly become established over the central and eastern CONUS in the wake of the mid-level impulse and attendant surface front currently progressing across the Canadian Prairies and northern Plains. This unseasonably strong surface high will modulate winds for much of the country, resulting in low probability for winds exceeding critical thresholds. Weak winds, combined with increasing rain chances from the southern Hi…
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SPC Day 3-8 Fire Weather Outlook Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0326 PM CST Mon Dec 11 2023 Valid 131200Z - 191200Z Fire weather potential remains low for the extended period. An expansive surface high will slowly become established over the central and eastern CONUS in the wake of the mid-level impulse and attendant surface front currently progressing across the Canadian Prairies and northern Plains. This unseasonably strong surface high will modulate winds for much of the country, resulting in low probability for winds exceeding critical thresholds. Weak winds, combined with increasing rain chances from the southern Hi…
Last reply by NorthGeorgiaWX, -
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0127 PM CST Mon Dec 11 2023 Valid 112000Z - 121200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected in the U.S. through tonight. ...20Z Update... No changes, see the previous discussion below. ..Dean.. 12/11/2023 .PREV DISCUSSION... /ISSUED 1029 AM CST Mon Dec 11 2023/ ...Synopsis... A large-scale trough currently over the Lower Great Lakes vicinity will continue east-northeastward across the Northeast through the period, while a related cold front over the Gulf Stream advances further east into the Atlantic Ocean. Thunderstorms are con…
Last reply by NorthGeorgiaWX, -
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0127 PM CST Mon Dec 11 2023 Valid 112000Z - 121200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected in the U.S. through tonight. ...20Z Update... No changes, see the previous discussion below. ..Dean.. 12/11/2023 .PREV DISCUSSION... /ISSUED 1029 AM CST Mon Dec 11 2023/ ...Synopsis... A large-scale trough currently over the Lower Great Lakes vicinity will continue east-northeastward across the Northeast through the period, while a related cold front over the Gulf Stream advances further east into the Atlantic Ocean. Thunderstorms are con…
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 1246 PM CST Mon Dec 11 2023 Valid 121200Z - 131200Z ...NO CRITICAL AREAS... The previous forecast remains on track; latest guidance continues to suggest low fire weather potential for Tuesday across most of the country. ..Moore.. 12/11/2023 .PREV DISCUSSION... /ISSUED 1254 AM CST Mon Dec 11 2023/ ...Synopsis... An upper-level cyclone will be positioned across parts of the Northeast with a cutoff low developing in the Great Basin in a quasi-Rex Block pattern. Surface high pressure will continue to be the predominant feature over much of the CONUS. Fire weathe…
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SPC Day 2 Fire Weather Outlook Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1246 PM CST Mon Dec 11 2023 Valid 121200Z - 131200Z ...NO CRITICAL AREAS... The previous forecast remains on track; latest guidance continues to suggest low fire weather potential for Tuesday across most of the country. ..Moore.. 12/11/2023 .PREV DISCUSSION... /ISSUED 1254 AM CST Mon Dec 11 2023/ ...Synopsis... An upper-level cyclone will be positioned across parts of the Northeast with a cutoff low developing in the Great Basin in a quasi-Rex Block pattern. Surface high pressure will continue to be the predominant feature over much of the CONUS. Fire weathe…
Last reply by NorthGeorgiaWX, -
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1059 AM CST Mon Dec 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Tuesday. ...Synopsis... Generally dry and stable conditions will preclude thunderstorm development across most of the CONUS on Tuesday. One possible exception will be across parts of eastern NM and west TX, where a modest increase in midlevel moisture is expected in advance of a developing mid/upper-level low over the Southwest. The increasing moisture will support the development of weak elevated buoyancy (MUCAPE of 100-300…
Last reply by NorthGeorgiaWX, -
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1059 AM CST Mon Dec 11 2023 Valid 121200Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected on Tuesday. ...Synopsis... Generally dry and stable conditions will preclude thunderstorm development across most of the CONUS on Tuesday. One possible exception will be across parts of eastern NM and west TX, where a modest increase in midlevel moisture is expected in advance of a developing mid/upper-level low over the Southwest. The increasing moisture will support the development of weak elevated buoyancy (MUCAPE of 100-300…
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