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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 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0646 AM CST Sun Dec 17 2023 Valid 171300Z - 181200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT ACROSS THE COASTAL CAROLINAS... ...SUMMARY... Isolated damaging gusts and a tornado or two will be possible through tonight across the coastal Carolinas. ...Coastal Carolinas through tonight... A deepening cyclone will progress from north FL this morning to eastern NC by 09-12z Monday, in response to gradual phasing of Gulf of Mexico shortwave troughs with a larger-scale trough over the eastern CONUS. Midlevel drying with the passage of a lead shortwave tr…
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SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0646 AM CST Sun Dec 17 2023 Valid 171300Z - 181200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT ACROSS THE COASTAL CAROLINAS... ...SUMMARY... Isolated damaging gusts and a tornado or two will be possible through tonight across the coastal Carolinas. ...Coastal Carolinas through tonight... A deepening cyclone will progress from north FL this morning to eastern NC by 09-12z Monday, in response to gradual phasing of Gulf of Mexico shortwave troughs with a larger-scale trough over the eastern CONUS. Midlevel drying with the passage of a lead shortwave tr…
Last reply by NorthGeorgiaWX, -
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Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0321 AM CST Sun Dec 17 2023 Valid 201200Z - 251200Z ...DISCUSSION... Medium-range guidance is in good agreement that a low-amplitude upper pattern, free of any larger disturbances, and a dry continental air mass will be in place over the CONUS early D4/Wednesday. Some modification of the portion of this air mass over the Plains will begin on D4/Wednesday, ahead of a low-amplitude shortwave expected to gradually move across the Southwest. This shortwave will likely interact with the returning low-level moisture late D5/Thursday and early D6/Friday, but buoyancy and shear will be mo…
Last reply by NorthGeorgiaWX, -
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Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0321 AM CST Sun Dec 17 2023 Valid 201200Z - 251200Z ...DISCUSSION... Medium-range guidance is in good agreement that a low-amplitude upper pattern, free of any larger disturbances, and a dry continental air mass will be in place over the CONUS early D4/Wednesday. Some modification of the portion of this air mass over the Plains will begin on D4/Wednesday, ahead of a low-amplitude shortwave expected to gradually move across the Southwest. This shortwave will likely interact with the returning low-level moisture late D5/Thursday and early D6/Friday, but buoyancy and shear will be mo…
Last reply by NorthGeorgiaWX, -
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Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0321 AM CST Sun Dec 17 2023 Valid 201200Z - 251200Z ...DISCUSSION... Medium-range guidance is in good agreement that a low-amplitude upper pattern, free of any larger disturbances, and a dry continental air mass will be in place over the CONUS early D4/Wednesday. Some modification of the portion of this air mass over the Plains will begin on D4/Wednesday, ahead of a low-amplitude shortwave expected to gradually move across the Southwest. This shortwave will likely interact with the returning low-level moisture late D5/Thursday and early D6/Friday, but buoyancy and shear will be mo…
Last reply by NorthGeorgiaWX, -
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Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0321 AM CST Sun Dec 17 2023 Valid 201200Z - 251200Z ...DISCUSSION... Medium-range guidance is in good agreement that a low-amplitude upper pattern, free of any larger disturbances, and a dry continental air mass will be in place over the CONUS early D4/Wednesday. Some modification of the portion of this air mass over the Plains will begin on D4/Wednesday, ahead of a low-amplitude shortwave expected to gradually move across the Southwest. This shortwave will likely interact with the returning low-level moisture late D5/Thursday and early D6/Friday, but buoyancy and shear will be mo…
Last reply by NorthGeorgiaWX, -
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SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0209 AM CST Sun Dec 17 2023 Valid 191200Z - 201200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Synopsis... An upper cyclone will likely be centered over PA early Tuesday morning, accompanied by cold mid-level temperatures and strong mid-level flow (i.e. 90-100 kt at 500 mb) throughout its eastern periphery. This system is forecast to gradually move eastward through the Northeast and Mid-Atlantic during the period, with largely zonal flow in its wake across the CONUS. High surface pressure associated with dry continental…
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SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0209 AM CST Sun Dec 17 2023 Valid 191200Z - 201200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Synopsis... An upper cyclone will likely be centered over PA early Tuesday morning, accompanied by cold mid-level temperatures and strong mid-level flow (i.e. 90-100 kt at 500 mb) throughout its eastern periphery. This system is forecast to gradually move eastward through the Northeast and Mid-Atlantic during the period, with largely zonal flow in its wake across the CONUS. High surface pressure associated with dry continental…
Last reply by NorthGeorgiaWX, -
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SPC 0830Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0209 AM CST Sun Dec 17 2023 Valid 191200Z - 201200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Synopsis... An upper cyclone will likely be centered over PA early Tuesday morning, accompanied by cold mid-level temperatures and strong mid-level flow (i.e. 90-100 kt at 500 mb) throughout its eastern periphery. This system is forecast to gradually move eastward through the Northeast and Mid-Atlantic during the period, with largely zonal flow in its wake across the CONUS. High surface pressure associated with dry continental…
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 0140 AM CST Sun Dec 17 2023 Valid 181200Z - 191200Z ...NO CRITICAL AREAS... ...Synopsis... Upper ridging will become established across the western and central CONUS as a mid-level trough amplifies over the Appalachians tomorrow/Monday. Surface high pressure and cooler air will continue to overspread the Rockies to East Coast areas, as appreciable precipitation accumulates over much of California. When also considering marginal fuel statuses across the U.S., the threat for significant wildfire-spread potential currently appears negligible. ..Squitieri.. 12/17/…
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SPC Day 1 Fire Weather Outlook Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0140 AM CST Sun Dec 17 2023 Valid 171200Z - 181200Z ...NO CRITICAL AREAS... ...Synopsis... A progressive upper pattern will characterize the synoptic environment over the CONUS today, with multiple mid-level troughs traversing the eastern U.S. as a third mid-level trough impinges on the California coastline. Regardless, surface high pressure and associated cooler air will surge southeast across the Rockies toward the Mississippi Valley, with wet conditions likely along the West Coast, mitigating major wildfire-spread concerns across the CONUS. ..Squitieri.. 12…
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SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1258 AM CST Sun Dec 17 2023 Valid 181200Z - 191200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM NJ INTO SOUTHERN NEW ENGLAND... ...SUMMARY... A few damaging gusts are possible from the eastern shore of New Jersey into southern New England Monday morning. A few isolated lightning flashes are possible along the northern/central California coast. ...NJ into Southern New England.. Upper troughing will be in place across much of the central and eastern CONUS early Monday morning. A pair of shortwave troughs will be embedded within this larger troughing, with the le…
Last reply by NorthGeorgiaWX, -
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No Mesoscale Discussions are in effect as of Sun Dec 17 04:31:02 UTC 2023.View the full article
Last reply by NorthGeorgiaWX, -
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MD 2331 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PORTIONS OF THE SOUTHERN AND CENTRAL FLORIDA PENINSULA AND KEYS Mesoscale Discussion 2331 NWS Storm Prediction Center Norman OK 0759 PM CST Sat Dec 16 2023 Areas affected...portions of the southern and central Florida Peninsula and Keys Concerning...Severe potential...Watch possible Valid 170159Z - 170430Z Probability of Watch Issuance...60 percent SUMMARY...Strong to potentially severe thunderstorms may move ashore from the Gulf of Mexico over the next several hours. Isolated tornadoes and damaging gusts are the main threats. The need for a Tornado Watch issuance depends on how much instability can…
Last reply by NorthGeorgiaWX, -
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SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0637 PM CST Sat Dec 16 2023 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE FLORIDA PENINSULA AND KEYS... ...SUMMARY... The threat for a few damaging gusts and tornadoes will increase tonight into Sunday morning across the Florida Peninsula and Keys. ...01z Update... Eastern Gulf Basin short-wave trough is ejecting northeast toward the FL Peninsula this evening. Surface low associated with this short wave will approach the FL Gulf Coast after 06z, then advance off the Atlantic Coast near Jacksonville by sunrise. 00z soundings over the …
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SPC Day 3-8 Fire Weather Outlook Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0351 PM CST Sat Dec 16 2023 Valid 181200Z - 241200Z The mid-level flow pattern across the CONUS will remain amplified at the start of the extended forecast period. A broad and deep trough with a strong coastal low will continue to intensify over the East Coast before shifting eastward by midweek. At the same time, a Pacific trough will move inland with broad southwesterly flow extending over parts of CA, WA and OR. Flow aloft will weaken as transient ridging builds over the central US through the end of the work week. Simultaneously, the Pacific trough will …
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SPC Day 3-8 Fire Weather Outlook Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0351 PM CST Sat Dec 16 2023 Valid 181200Z - 241200Z The mid-level flow pattern across the CONUS will remain amplified at the start of the extended forecast period. A broad and deep trough with a strong coastal low will continue to intensify over the East Coast before shifting eastward by midweek. At the same time, a Pacific trough will move inland with broad southwesterly flow extending over parts of CA, WA and OR. Flow aloft will weaken as transient ridging builds over the central US through the end of the work week. Simultaneously, the Pacific trough will …
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 0149 PM CST Sat Dec 16 2023 Valid 171200Z - 181200Z ...NO CRITICAL AREAS... Widespread precipitation and cool temperatures are again expected to limit fire-weather concerns over much of the CONUS. See the previous discussion. ..Lyons.. 12/16/2023 .PREV DISCUSSION... /ISSUED 1228 AM CST Sat Dec 16 2023/ ...Synopsis... A series of mid-level troughs will traverse the eastern CONUS as a mid-level trough approaches the West Coast tomorrow/Sunday. Cool conditions will overspread much of the U.S. east of the Rockies, with appreciable precipitation accumulations pos…
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SPC Day 2 Fire Weather Outlook Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0149 PM CST Sat Dec 16 2023 Valid 171200Z - 181200Z ...NO CRITICAL AREAS... Widespread precipitation and cool temperatures are again expected to limit fire-weather concerns over much of the CONUS. See the previous discussion. ..Lyons.. 12/16/2023 .PREV DISCUSSION... /ISSUED 1228 AM CST Sat Dec 16 2023/ ...Synopsis... A series of mid-level troughs will traverse the eastern CONUS as a mid-level trough approaches the West Coast tomorrow/Sunday. Cool conditions will overspread much of the U.S. east of the Rockies, with appreciable precipitation accumulations pos…
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 0149 PM CST Sat Dec 16 2023 Valid 171200Z - 181200Z ...NO CRITICAL AREAS... Widespread precipitation and cool temperatures are again expected to limit fire-weather concerns over much of the CONUS. See the previous discussion. ..Lyons.. 12/16/2023 .PREV DISCUSSION... /ISSUED 1228 AM CST Sat Dec 16 2023/ ...Synopsis... A series of mid-level troughs will traverse the eastern CONUS as a mid-level trough approaches the West Coast tomorrow/Sunday. Cool conditions will overspread much of the U.S. east of the Rockies, with appreciable precipitation accumulations pos…
Last reply by NorthGeorgiaWX, -
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0142 PM CST Sat Dec 16 2023 Valid 162000Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE FLORIDA PENINSULA... ...SUMMARY... The threat for a few damaging gusts and tornadoes will increase by tonight into Sunday morning across the Florida peninsula and Keys. ...20z Update... The previous outlook remains on track, and no changes have been made to severe probabilities across FL and far southeast GA. Overall severe risk will remain conditional through the period given limited thermodynamic environment hindered by weak diurnal heating and poor l…
Last reply by NorthGeorgiaWX, -
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0142 PM CST Sat Dec 16 2023 Valid 162000Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE FLORIDA PENINSULA... ...SUMMARY... The threat for a few damaging gusts and tornadoes will increase by tonight into Sunday morning across the Florida peninsula and Keys. ...20z Update... The previous outlook remains on track, and no changes have been made to severe probabilities across FL and far southeast GA. Overall severe risk will remain conditional through the period given limited thermodynamic environment hindered by weak diurnal heating and poor l…
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SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0142 PM CST Sat Dec 16 2023 Valid 162000Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE FLORIDA PENINSULA... ...SUMMARY... The threat for a few damaging gusts and tornadoes will increase by tonight into Sunday morning across the Florida peninsula and Keys. ...20z Update... The previous outlook remains on track, and no changes have been made to severe probabilities across FL and far southeast GA. Overall severe risk will remain conditional through the period given limited thermodynamic environment hindered by weak diurnal heating and poor l…
Last reply by NorthGeorgiaWX, -
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1129 AM CST Sat Dec 16 2023 Valid 171200Z - 181200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHEAST SOUTH CAROLINA INTO EASTERN NORTH CAROLINA AND THE OUTER BANKS... ...SUMMARY... Severe thunderstorms are possible Sunday from northeast South Carolina into eastern North Carolina and the Outer Banks. Primary severe hazard is damaging wind gusts. ...Southeast and Mid-Atlantic Coastal Vicinity... Overall forecast philosophy remains similar to the previous outlook, and only minor changes have been made based on latest forecast guidance. A rapidly deepening…
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SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1129 AM CST Sat Dec 16 2023 Valid 171200Z - 181200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHEAST SOUTH CAROLINA INTO EASTERN NORTH CAROLINA AND THE OUTER BANKS... ...SUMMARY... Severe thunderstorms are possible Sunday from northeast South Carolina into eastern North Carolina and the Outer Banks. Primary severe hazard is damaging wind gusts. ...Southeast and Mid-Atlantic Coastal Vicinity... Overall forecast philosophy remains similar to the previous outlook, and only minor changes have been made based on latest forecast guidance. A rapidly deepening…
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