Tag: utc

Official

SPC Dec 26, 2024 1630 UTC Day 1 Convective Outlook

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1013 AM CST Thu Dec 26 2024 Valid 261630Z - 271200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR SOUTHEAST TX... ...SUMMARY... Several tornadoes, including a strong (potentially EF2+) tornado or two, will be possible this afternoon/evening across southeast Texas. Damaging gusts of 60-70 mph and large hail of 1-1.75" in diameter will also be possible from east Texas this afternoon into Louisiana, southern Arkansas and far west central Mississippi overnight. ...East TX/LA/southern AR through tonight... Elevated convection has already formed over
Official

SPC Dec 26, 2024 1300 UTC Day 1 Convective Outlook

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0649 AM CST Thu Dec 26 2024 Valid 261300Z - 271200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER MAINLY SOUTHEAST AND EAST TEXAS INTO WESTERN AND NORTHERN LOUISIANA AND SOUTHERN ARKANSAS... ...SUMMARY... Scattered severe thunderstorms capable of all hazards are possible this afternoon and evening from the southern Plains eastward into the Ark-La-Tex and lower Mississippi Valley. ...Southern Plains/Ark-La-Tex and Lower Mississippi Valley... Water-vapor imagery this morning shows a relatively compact but potent mid-level shortwave trough over west/northwest TX, and this feature will
Official

SPC Dec 26, 2024 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0658 PM CST Wed Dec 25 2024 Valid 260100Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms will be possible this evening into tonight from parts of the southern and central High Plains into the Southeast, and along parts of the West Coast. No severe storms are expected. ...DISCUSSION... A mid-level trough is evident on water vapor imagery over the southern Rockies. Isolated thunderstorms will be possible ahead of the trough in parts of the southern and central High Plains. Further to the east
Official

SPC Dec 25, 2024 1300 UTC Day 1 Convective Outlook

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 AM CST Wed Dec 25 2024 Valid 251300Z - 261200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected today (Christmas). ...Synopsis... Water-vapor imagery this morning shows a mid-level disturbance over the northwest Gulf Coast while another upstream and more potent shortwave trough is located over UT/AZ. The Gulf Coast disturbance will weaken during the day as it moves east across the central Gulf Coast. Limited low-level mass response is forecast across southern LA due in part to relatively cool/stable conditions via
Official

SPC Dec 25, 2024 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0639 PM CST Tue Dec 24 2024 Valid 250100Z - 251200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF CENTRAL INTO SOUTHEAST TEXAS... ...SUMMARY... Strong to severe thunderstorms, capable of large hail and marginally severe gusts, will propagate across central into southeast Texas tonight. ...01z Update... Southern-stream short-wave trough will dig toward the lower Sabine River Valley late tonight. This feature will ensure at least a modest LLJ across the upper TX Coast into southern AR, ahead of a surface front that