Tag: spc

Official

SPC Jan 15, 2025 0100 UTC Day 1 Convective Outlook

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
Official

SPC Jan 14, 2025 1630 UTC Day 1 Convective Outlook

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
Official

SPC Jan 14, 2025 1300 UTC Day 1 Convective Outlook

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
Official

SPC Jan 14, 2025 0100 UTC Day 1 Convective Outlook

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