Tag: convective

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CST Wed Jan 15 2025 Valid 161200Z - 171200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Thursday. ...Discussion... An upper trough over the eastern U.S. will advance slowly eastward Thursday, while the next feature -- a short-wave trough over western Canada -- digs southeastward, moving into the northwestern/north-central U.S. overnight. At the surface, cold/dry/stable conditions will persist. A pronounced cold front, associated with the digging/western upper system, will likewise shift southeastward out of Canada, but preceding high pressure will preclude

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1015 AM CST Wed Jan 15 2025 Valid 151630Z - 161200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Synopsis and Discussion... With weak instability in place this morning, isolated thunderstorms should continue for a few more hours along parts of the middle/upper TX Coast as an upper trough pivots southeastward over the southern Plains. This activity will remain elevated in nature, and severe thunderstorms are not expected. Across the rest of the CONUS, dry and/or stable conditions will preclude

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0646 AM CST Wed Jan 15 2025 Valid 151300Z - 161200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...Coastal Texas... Scattered elevated convection is expected to continue across the coastal plain as warm/moist advection persists while a weak mid-level disturbance moves eastward over the western Gulf of Mexico. Deeper lightning-producing convection will focus over the open Gulf waters, but a few lightning flashes could occur near the coast. This potential is substantiated by the 12z observed sounding from Corpus

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0630 PM CST Tue Jan 14 2025 Valid 150100Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected tonight. ...01z Update... Weak mid-level disturbance is ejecting across northeast Mexico toward deep south TX early this evening. This feature should encourage weak elevated convection along the cool side of an offshore coastal boundary tonight. 00z sounding from BRO exhibits a modestly steep 3-6km lapse rate (7 C/km), and while moist, MUCAPE is only 100 J/kg. Lapse rates will likely remain a bit too weak

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1010 AM CST Tue Jan 14 2025 Valid 141630Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected through tonight. ...Synopsis and Discussion... Expansive surface high pressure will continue to dominate much of the CONUS through the period, with minimal thunderstorm potential. Weak low-level warm/moist advection is forecast to occur tonight across parts of deep south TX. While modest MUCAPE should eventually develop over this region, limited large-scale ascent suggests thunderstorm chances should remain low. ..Gleason/Thornton.. 01/14/2025 Read more

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0648 AM CST Tue Jan 14 2025 Valid 141300Z - 151200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected through tonight. ...Discussion... Thunderstorm potential will be essentially nil today and tonight as high pressure and stable continental trajectories persist from the Rockies eastward. A weak low-latitude disturbance over Mexico will progress northeastward toward Deep South Texas late today. Warm/moist advection will also increase with airmass modification over the western Gulf of Mexico and a gradual moistening off the coast of Deep South Texas. Weak

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 PM CST Mon Jan 13 2025 Valid 140100Z - 141200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm potential is very low across the CONUS tonight. ...01z Update... Shallow, weak convection continues to weaken as it sags southeast across the central FL Peninsula early this evening. Very little lightning has been noted with this band over the northeast Gulf Basin, and updrafts will likely struggle to attain heights necessary for lightning discharge the rest of tonight. ..Darrow.. 01/14/2025 Read more

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0651 AM CST Mon Jan 13 2025 Valid 131300Z - 141200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. A few thunderstorms may occur near the northern/western Florida Gulf Coast today. ...Discussion... Prevalent warm advection/elevated moisture transport ahead of a weak low over the northeast Gulf of Mexico will influence eastward-developing convection today. Most of this convection will remain focused over the open waters of the northeast Gulf of Mexico, but a few thunderstorms could approach the Big Bend and

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0618 PM CST Sun Jan 12 2025 Valid 130100Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms remain possible along parts of the central Gulf Coast tonight. ...01z Update... Early-evening water-vapor imagery depicts a low-amplitude short-wave trough progressing northeast along the middle TX Coast. This feature will lose its identity as it ejects into the central Gulf States later tonight. Scattered, shallow convection is noted ahead of this feature from the northwestern Gulf basin, extending northeast along the LA Coast into southern AL.

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0655 AM CST Sun Jan 12 2025 Valid 121300Z - 131200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected, but isolated thunderstorms may occur near the Gulf Coast tonight. ...Middle Gulf Coast... Longwave troughing and prevalent cyclonic upper flow will persist over the CONUS with cold/stable conditions remaining prevalent from the Rockies eastward. Weak cyclogenesis is expected to occur over the western to northern Gulf of Mexico tonight, with increasing warm/moist advection toward the middle Gulf Coast. Richer low-level theta-e will approach