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SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0157 PM CST Mon Jan 13 2025 Valid 132000Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. Isolated thunderstorms may occur along/near the western Florida Gulf Coast today. ...20Z Update... Recent surface observations, visible satellite imagery, and ACARS soundings indicate stable boundary-layer conditions on land over the western Florida Gulf Coast. Therefore, the general thunderstorm highlights have been confined to the immediate coastal areas and nearshore waters. ..Weinman.. 01/13/2025 .PREV DISCUSSION... /ISSUED 1016 AM CST Mon Jan 13 2025/ ...Synopsis and Discussion... Low-level warm/moist advection ahead of a weak surface low over the northern Gulf will support eastward-developing convection today. Most of this activity will remain over the open waters of the northeast Gulf. Still, a few thunderstorms could approach parts of the western Florida Gulf Coast. With poor lapse rates aloft, instability should remain minimal over land. Accordingly, severe thunderstorms are not expected. Read more

MD 0035 CONCERNING SNOW SQUALL FOR SOUTH-CENTRAL NEW YORK INTO FAR NORTHERN PENNSYLVANIA
Mesoscale Discussion 0035 NWS Storm Prediction Center Norman OK 1245 PM CST Mon Jan 13 2025 Areas affected...south-central New York into far northern Pennsylvania Concerning...Snow Squall Valid 131845Z - 132045Z SUMMARY...Snow squall activity will be possible through the afternoon diminishing through the evening. DISCUSSION...Radar across southern New York state this afternoon shows several snow showers moving eastward along a surface cold front. A few of these showers have had brief increase in intensity, with visibility reductions to 1/2 mile reported. The thermal environment is characterized by somewhat poor low-level lapse rates, owing to cloud cover across the region. However, surface objective analysis does indicated some 2-6 AGL lapse rates around 7 C/km right along the front. The occasional snow squall will be possible, with sudden visibility reductions to less than 1/4 miles and gusty winds. This threat will subside with passage of the front, and as sunset approaches with loss of daytime heating. ..Thornton.. 01/13/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ALY...BGM... LAT...LON 41797556 41917594 42007578 42267538 42667507 43117482 43217453 43177422 42897405 42717413 42367439 42097457 41877496 41797556 Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0115 PM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE WESTERN LA BASIN... ...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CA... ...19z Update... Minimal changes were made to the prior outlook. Strong sustained winds of 30-40 mph, with locally damaging wind gusts of 55-75 mph are likely overnight D1/Monday night into D2/Tuesday. Winds should peak through the morning and early afternoon D2/Tuesday across the Santa Ana corridors of Ventura and western LA County, and farther south across southern CA. Very dry surface conditions, with RH values of 8-10% are also expected. The rare combination of extremely low humidity and very strong winds will support extremely critical fire-weather conditions much of D2/Tuesday. Critical fire-weather conditions are also possible across parts of the Santa Ynez mountains and southern Coastal Ranges. Critical fire-weather concerns will likely continue overnight into D3/Wednesday. However, winds should slowly weaken as upper-level support diminishes. See the prior outlook for additional information. ..Lyons.. 01/13/2025 .PREV DISCUSSION... /ISSUED 0243 AM CST Mon Jan 13 2025/ ...Synopsis... Upper ridging will begin to impinge on the West Coast as a positively tilted mid-level trough meanders over the southern Rockies tomorrow (Tuesday). Guidance consensus shows deep-layer offshore flow over the southern California coastline, driven by a strong surface pressure gradient with offshore flow, overspread by a northeasterly 500 mb wind maximum. The deep-layer offshore flow will support widespread 20-40 mph sustained surface winds (with higher gusts) through at least Tuesday morning into early Tuesday afternoon, when RH will dip to at least 10-15 percent. Similar to Day 1 (today), the best chance for Extremely Critical conditions tomorrow/Tuesday will be over the Ventura Valley toward the San Bernardino mountains. Here, high-resolution guidance agreement is greatest in showing particularly dangerous wildfire-spread conditions lasting for several hours. ...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 0115 PM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE WESTERN LA BASIN... ...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CA... ...19z Update... Minimal changes were made to the prior outlook. Strong sustained winds of 30-40 mph, with locally damaging wind gusts of 55-75 mph are likely overnight D1/Monday night into D2/Tuesday. Winds should peak through the morning and early afternoon D2/Tuesday across the Santa Ana corridors of Ventura and western LA County, and farther south across southern CA. Very dry surface conditions, with RH values of 8-10% are also expected. The rare combination of extremely low humidity and very strong winds will support extremely critical fire-weather conditions much of D2/Tuesday. Critical fire-weather conditions are also possible across parts of the Santa Ynez mountains and southern Coastal Ranges. Critical fire-weather concerns will likely continue overnight into D3/Wednesday. However, winds should slowly weaken as upper-level support diminishes. See the prior outlook for additional information. ..Lyons.. 01/13/2025 .PREV DISCUSSION... /ISSUED 0243 AM CST Mon Jan 13 2025/ ...Synopsis... Upper ridging will begin to impinge on the West Coast as a positively tilted mid-level trough meanders over the southern Rockies tomorrow (Tuesday). Guidance consensus shows deep-layer offshore flow over the southern California coastline, driven by a strong surface pressure gradient with offshore flow, overspread by a northeasterly 500 mb wind maximum. The deep-layer offshore flow will support widespread 20-40 mph sustained surface winds (with higher gusts) through at least Tuesday morning into early Tuesday afternoon, when RH will dip to at least 10-15 percent. Similar to Day 1 (today), the best chance for Extremely Critical conditions tomorrow/Tuesday will be over the Ventura Valley toward the San Bernardino mountains. Here, high-resolution guidance agreement is greatest in showing particularly dangerous wildfire-spread conditions lasting for several hours. ...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 0115 PM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE WESTERN LA BASIN... ...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CA... ...19z Update... Minimal changes were made to the prior outlook. Strong sustained winds of 30-40 mph, with locally damaging wind gusts of 55-75 mph are likely overnight D1/Monday night into D2/Tuesday. Winds should peak through the morning and early afternoon D2/Tuesday across the Santa Ana corridors of Ventura and western LA County, and farther south across southern CA. Very dry surface conditions, with RH values of 8-10% are also expected. The rare combination of extremely low humidity and very strong winds will support extremely critical fire-weather conditions much of D2/Tuesday. Critical fire-weather conditions are also possible across parts of the Santa Ynez mountains and southern Coastal Ranges. Critical fire-weather concerns will likely continue overnight into D3/Wednesday. However, winds should slowly weaken as upper-level support diminishes. See the prior outlook for additional information. ..Lyons.. 01/13/2025 .PREV DISCUSSION... /ISSUED 0243 AM CST Mon Jan 13 2025/ ...Synopsis... Upper ridging will begin to impinge on the West Coast as a positively tilted mid-level trough meanders over the southern Rockies tomorrow (Tuesday). Guidance consensus shows deep-layer offshore flow over the southern California coastline, driven by a strong surface pressure gradient with offshore flow, overspread by a northeasterly 500 mb wind maximum. The deep-layer offshore flow will support widespread 20-40 mph sustained surface winds (with higher gusts) through at least Tuesday morning into early Tuesday afternoon, when RH will dip to at least 10-15 percent. Similar to Day 1 (today), the best chance for Extremely Critical conditions tomorrow/Tuesday will be over the Ventura Valley toward the San Bernardino mountains. Here, high-resolution guidance agreement is greatest in showing particularly dangerous wildfire-spread conditions lasting for several hours. ...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 0115 PM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE WESTERN LA BASIN... ...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CA... ...19z Update... Minimal changes were made to the prior outlook. Strong sustained winds of 30-40 mph, with locally damaging wind gusts of 55-75 mph are likely overnight D1/Monday night into D2/Tuesday. Winds should peak through the morning and early afternoon D2/Tuesday across the Santa Ana corridors of Ventura and western LA County, and farther south across southern CA. Very dry surface conditions, with RH values of 8-10% are also expected. The rare combination of extremely low humidity and very strong winds will support extremely critical fire-weather conditions much of D2/Tuesday. Critical fire-weather conditions are also possible across parts of the Santa Ynez mountains and southern Coastal Ranges. Critical fire-weather concerns will likely continue overnight into D3/Wednesday. However, winds should slowly weaken as upper-level support diminishes. See the prior outlook for additional information. ..Lyons.. 01/13/2025 .PREV DISCUSSION... /ISSUED 0243 AM CST Mon Jan 13 2025/ ...Synopsis... Upper ridging will begin to impinge on the West Coast as a positively tilted mid-level trough meanders over the southern Rockies tomorrow (Tuesday). Guidance consensus shows deep-layer offshore flow over the southern California coastline, driven by a strong surface pressure gradient with offshore flow, overspread by a northeasterly 500 mb wind maximum. The deep-layer offshore flow will support widespread 20-40 mph sustained surface winds (with higher gusts) through at least Tuesday morning into early Tuesday afternoon, when RH will dip to at least 10-15 percent. Similar to Day 1 (today), the best chance for Extremely Critical conditions tomorrow/Tuesday will be over the Ventura Valley toward the San Bernardino mountains. Here, high-resolution guidance agreement is greatest in showing particularly dangerous wildfire-spread conditions lasting for several hours. ...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 0115 PM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE WESTERN LA BASIN... ...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CA... ...19z Update... Minimal changes were made to the prior outlook. Strong sustained winds of 30-40 mph, with locally damaging wind gusts of 55-75 mph are likely overnight D1/Monday night into D2/Tuesday. Winds should peak through the morning and early afternoon D2/Tuesday across the Santa Ana corridors of Ventura and western LA County, and farther south across southern CA. Very dry surface conditions, with RH values of 8-10% are also expected. The rare combination of extremely low humidity and very strong winds will support extremely critical fire-weather conditions much of D2/Tuesday. Critical fire-weather conditions are also possible across parts of the Santa Ynez mountains and southern Coastal Ranges. Critical fire-weather concerns will likely continue overnight into D3/Wednesday. However, winds should slowly weaken as upper-level support diminishes. See the prior outlook for additional information. ..Lyons.. 01/13/2025 .PREV DISCUSSION... /ISSUED 0243 AM CST Mon Jan 13 2025/ ...Synopsis... Upper ridging will begin to impinge on the West Coast as a positively tilted mid-level trough meanders over the southern Rockies tomorrow (Tuesday). Guidance consensus shows deep-layer offshore flow over the southern California coastline, driven by a strong surface pressure gradient with offshore flow, overspread by a northeasterly 500 mb wind maximum. The deep-layer offshore flow will support widespread 20-40 mph sustained surface winds (with higher gusts) through at least Tuesday morning into early Tuesday afternoon, when RH will dip to at least 10-15 percent. Similar to Day 1 (today), the best chance for Extremely Critical conditions tomorrow/Tuesday will be over the Ventura Valley toward the San Bernardino mountains. Here, high-resolution guidance agreement is greatest in showing particularly dangerous wildfire-spread conditions lasting for several hours. ...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 0115 PM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE WESTERN LA BASIN... ...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CA... ...19z Update... Minimal changes were made to the prior outlook. Strong sustained winds of 30-40 mph, with locally damaging wind gusts of 55-75 mph are likely overnight D1/Monday night into D2/Tuesday. Winds should peak through the morning and early afternoon D2/Tuesday across the Santa Ana corridors of Ventura and western LA County, and farther south across southern CA. Very dry surface conditions, with RH values of 8-10% are also expected. The rare combination of extremely low humidity and very strong winds will support extremely critical fire-weather conditions much of D2/Tuesday. Critical fire-weather conditions are also possible across parts of the Santa Ynez mountains and southern Coastal Ranges. Critical fire-weather concerns will likely continue overnight into D3/Wednesday. However, winds should slowly weaken as upper-level support diminishes. See the prior outlook for additional information. ..Lyons.. 01/13/2025 .PREV DISCUSSION... /ISSUED 0243 AM CST Mon Jan 13 2025/ ...Synopsis... Upper ridging will begin to impinge on the West Coast as a positively tilted mid-level trough meanders over the southern Rockies tomorrow (Tuesday). Guidance consensus shows deep-layer offshore flow over the southern California coastline, driven by a strong surface pressure gradient with offshore flow, overspread by a northeasterly 500 mb wind maximum. The deep-layer offshore flow will support widespread 20-40 mph sustained surface winds (with higher gusts) through at least Tuesday morning into early Tuesday afternoon, when RH will dip to at least 10-15 percent. Similar to Day 1 (today), the best chance for Extremely Critical conditions tomorrow/Tuesday will be over the Ventura Valley toward the San Bernardino mountains. Here, high-resolution guidance agreement is greatest in showing particularly dangerous wildfire-spread conditions lasting for several hours. ...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 0115 PM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...EXTREMELY CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE WESTERN LA BASIN... ...CRITICAL FIRE WEATHER AREA FOR MUCH OF SOUTHERN CA... ...19z Update... Minimal changes were made to the prior outlook. Strong sustained winds of 30-40 mph, with locally damaging wind gusts of 55-75 mph are likely overnight D1/Monday night into D2/Tuesday. Winds should peak through the morning and early afternoon D2/Tuesday across the Santa Ana corridors of Ventura and western LA County, and farther south across southern CA. Very dry surface conditions, with RH values of 8-10% are also expected. The rare combination of extremely low humidity and very strong winds will support extremely critical fire-weather conditions much of D2/Tuesday. Critical fire-weather conditions are also possible across parts of the Santa Ynez mountains and southern Coastal Ranges. Critical fire-weather concerns will likely continue overnight into D3/Wednesday. However, winds should slowly weaken as upper-level support diminishes. See the prior outlook for additional information. ..Lyons.. 01/13/2025 .PREV DISCUSSION... /ISSUED 0243 AM CST Mon Jan 13 2025/ ...Synopsis... Upper ridging will begin to impinge on the West Coast as a positively tilted mid-level trough meanders over the southern Rockies tomorrow (Tuesday). Guidance consensus shows deep-layer offshore flow over the southern California coastline, driven by a strong surface pressure gradient with offshore flow, overspread by a northeasterly 500 mb wind maximum. The deep-layer offshore flow will support widespread 20-40 mph sustained surface winds (with higher gusts) through at least Tuesday morning into early Tuesday afternoon, when RH will dip to at least 10-15 percent. Similar to Day 1 (today), the best chance for Extremely Critical conditions tomorrow/Tuesday will be over the Ventura Valley toward the San Bernardino mountains. Here, high-resolution guidance agreement is greatest in showing particularly dangerous wildfire-spread conditions lasting for several hours. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Mon Jan 13 2025 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Minimal to no lightning is expected across the U.S. on Wednesday. ...Discussion... A positively tilted upper trough affecting much of the U.S. will shift southeastward across the eastern half of the U.S. on Wednesday. This will result in persistence of cold continental air across much of the country. Given the dry/stable conditions prevailing, thunderstorm development will be precluded across most of the country. One exception may be over Deep South Texas, where scattered, elevated showers may occur, in the vicinity of a weak surface low just offshore. A lightning flash or two may occur inland with this convection, but coverage appears likely to remain low, thus not warranting inclusion of a 10% coverage area at this time. ..Goss.. 01/13/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Mon Jan 13 2025 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Minimal to no lightning is expected across the U.S. on Wednesday. ...Discussion... A positively tilted upper trough affecting much of the U.S. will shift southeastward across the eastern half of the U.S. on Wednesday. This will result in persistence of cold continental air across much of the country. Given the dry/stable conditions prevailing, thunderstorm development will be precluded across most of the country. One exception may be over Deep South Texas, where scattered, elevated showers may occur, in the vicinity of a weak surface low just offshore. A lightning flash or two may occur inland with this convection, but coverage appears likely to remain low, thus not warranting inclusion of a 10% coverage area at this time. ..Goss.. 01/13/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Mon Jan 13 2025 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Minimal to no lightning is expected across the U.S. on Wednesday. ...Discussion... A positively tilted upper trough affecting much of the U.S. will shift southeastward across the eastern half of the U.S. on Wednesday. This will result in persistence of cold continental air across much of the country. Given the dry/stable conditions prevailing, thunderstorm development will be precluded across most of the country. One exception may be over Deep South Texas, where scattered, elevated showers may occur, in the vicinity of a weak surface low just offshore. A lightning flash or two may occur inland with this convection, but coverage appears likely to remain low, thus not warranting inclusion of a 10% coverage area at this time. ..Goss.. 01/13/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Mon Jan 13 2025 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Minimal to no lightning is expected across the U.S. on Wednesday. ...Discussion... A positively tilted upper trough affecting much of the U.S. will shift southeastward across the eastern half of the U.S. on Wednesday. This will result in persistence of cold continental air across much of the country. Given the dry/stable conditions prevailing, thunderstorm development will be precluded across most of the country. One exception may be over Deep South Texas, where scattered, elevated showers may occur, in the vicinity of a weak surface low just offshore. A lightning flash or two may occur inland with this convection, but coverage appears likely to remain low, thus not warranting inclusion of a 10% coverage area at this time. ..Goss.. 01/13/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Mon Jan 13 2025 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Minimal to no lightning is expected across the U.S. on Wednesday. ...Discussion... A positively tilted upper trough affecting much of the U.S. will shift southeastward across the eastern half of the U.S. on Wednesday. This will result in persistence of cold continental air across much of the country. Given the dry/stable conditions prevailing, thunderstorm development will be precluded across most of the country. One exception may be over Deep South Texas, where scattered, elevated showers may occur, in the vicinity of a weak surface low just offshore. A lightning flash or two may occur inland with this convection, but coverage appears likely to remain low, thus not warranting inclusion of a 10% coverage area at this time. ..Goss.. 01/13/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0104 PM CST Mon Jan 13 2025 Valid 151200Z - 161200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Minimal to no lightning is expected across the U.S. on Wednesday. ...Discussion... A positively tilted upper trough affecting much of the U.S. will shift southeastward across the eastern half of the U.S. on Wednesday. This will result in persistence of cold continental air across much of the country. Given the dry/stable conditions prevailing, thunderstorm development will be precluded across most of the country. One exception may be over Deep South Texas, where scattered, elevated showers may occur, in the vicinity of a weak surface low just offshore. A lightning flash or two may occur inland with this convection, but coverage appears likely to remain low, thus not warranting inclusion of a 10% coverage area at this time. ..Goss.. 01/13/2025 Read more

SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1117 AM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Discussion... An upper trough with strong positive tilt will continue to prevail across the U.S. Tuesday. At the surface, a cold front over southern Florida will continue shifting slowly southward and eventually offshore, while a second/weak front -- at the leading edge of a reinforcing intrusion of arctic air -- shifts southeastward across the Northeast/Midwest/Plains states. A weak upper disturbance -- embedded in fast westerly flow aloft -- is forecast to shift across northern Mexico and Deep South Texas, and on into the western Gulf of Mexico late. A few showers -- and possibly a lightning flash or two -- cannot be ruled out over parts of South Texas -- most likely near the coast or offshore. Elsewhere, thunderstorms are not expected as cold/continental air prevails across much of the CONUS. ..Goss.. 01/13/2025 Read more

SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1117 AM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Discussion... An upper trough with strong positive tilt will continue to prevail across the U.S. Tuesday. At the surface, a cold front over southern Florida will continue shifting slowly southward and eventually offshore, while a second/weak front -- at the leading edge of a reinforcing intrusion of arctic air -- shifts southeastward across the Northeast/Midwest/Plains states. A weak upper disturbance -- embedded in fast westerly flow aloft -- is forecast to shift across northern Mexico and Deep South Texas, and on into the western Gulf of Mexico late. A few showers -- and possibly a lightning flash or two -- cannot be ruled out over parts of South Texas -- most likely near the coast or offshore. Elsewhere, thunderstorms are not expected as cold/continental air prevails across much of the CONUS. ..Goss.. 01/13/2025 Read more

SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1117 AM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Discussion... An upper trough with strong positive tilt will continue to prevail across the U.S. Tuesday. At the surface, a cold front over southern Florida will continue shifting slowly southward and eventually offshore, while a second/weak front -- at the leading edge of a reinforcing intrusion of arctic air -- shifts southeastward across the Northeast/Midwest/Plains states. A weak upper disturbance -- embedded in fast westerly flow aloft -- is forecast to shift across northern Mexico and Deep South Texas, and on into the western Gulf of Mexico late. A few showers -- and possibly a lightning flash or two -- cannot be ruled out over parts of South Texas -- most likely near the coast or offshore. Elsewhere, thunderstorms are not expected as cold/continental air prevails across much of the CONUS. ..Goss.. 01/13/2025 Read more

SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1117 AM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Discussion... An upper trough with strong positive tilt will continue to prevail across the U.S. Tuesday. At the surface, a cold front over southern Florida will continue shifting slowly southward and eventually offshore, while a second/weak front -- at the leading edge of a reinforcing intrusion of arctic air -- shifts southeastward across the Northeast/Midwest/Plains states. A weak upper disturbance -- embedded in fast westerly flow aloft -- is forecast to shift across northern Mexico and Deep South Texas, and on into the western Gulf of Mexico late. A few showers -- and possibly a lightning flash or two -- cannot be ruled out over parts of South Texas -- most likely near the coast or offshore. Elsewhere, thunderstorms are not expected as cold/continental air prevails across much of the CONUS. ..Goss.. 01/13/2025 Read more

SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1117 AM CST Mon Jan 13 2025 Valid 141200Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Tuesday. ...Discussion... An upper trough with strong positive tilt will continue to prevail across the U.S. Tuesday. At the surface, a cold front over southern Florida will continue shifting slowly southward and eventually offshore, while a second/weak front -- at the leading edge of a reinforcing intrusion of arctic air -- shifts southeastward across the Northeast/Midwest/Plains states. A weak upper disturbance -- embedded in fast westerly flow aloft -- is forecast to shift across northern Mexico and Deep South Texas, and on into the western Gulf of Mexico late. A few showers -- and possibly a lightning flash or two -- cannot be ruled out over parts of South Texas -- most likely near the coast or offshore. Elsewhere, thunderstorms are not expected as cold/continental air prevails across much of the CONUS. ..Goss.. 01/13/2025 Read more