Tag: convective

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0148 PM CST Thu Jan 23 2025 Valid 232000Z - 241200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast across the continental U.S. through the remainder of today or into tonight. ...20z Update... No changes were made to the prior outlook. Broad high pressure over the central US will continue to favor cool, dry and stable conditions behind a cold front. This will negate thunderstorm potential. See the prior outlook for more info. ..Lyons.. 01/23/2025 .PREV DISCUSSION... /ISSUED 1013 AM CST Thu Jan 23

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0154 PM CST Wed Jan 22 2025 Valid 222000Z - 231200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for thunderstorms appears negligible across the U.S. through tonight. ...20z Update... No changes were made to the valid outlook. High pressure is supporting cold and dry conditions over much of the eastern and western US. Offshore flow over the eastern seaboard and Gulf Coast will preclude thunderstorm development. See the prior outlook for additional information. ..Lyons.. 01/22/2025 .PREV DISCUSSION... /ISSUED 1026 AM CST Wed Jan 22 2025/

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1147 PM CST Tue Jan 21 2025 Valid 231200Z - 241200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast on Thursday. ...Synopsis... A cool and stable pattern will persist on Thursday across the CONUS, with a sprawling area of high pressure stretching from the Great Basin to the East Coast. An elongated, positive-tilt upper trough will extend from Quebec southwestward across the Great Lakes and into the southern High Plains by 00Z, and will move toward the MS Valley into Friday morning. Given high

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0132 PM CST Tue Jan 21 2025 Valid 212000Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for thunderstorms appears negligible across the U.S. through tonight. ...20z... No changes were made. Widespread winter precipitation is ongoing along the Gulf Coast. High pressure over the interior of the central CONUS will continue to support very cold, dry and stable conditions with offshore flow. This will negate sufficient buoyancy for thunderstorm potential. See the prior outlook for more info. ..Lyons.. 01/21/2025 .PREV DISCUSSION... /ISSUED 1012 AM

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1124 AM CST Tue Jan 21 2025 Valid 221200Z - 231200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Wednesday. ...Synopsis... A deep mid/upper-level trough will remain in place over most of the CONUS on Wednesday. Anomalously cold conditions are expected from the Great Plains to the Eastern Seaboard, in the wake of a strong cold front. Weak MUCAPE may persist across far south FL and the Keys very early in the forecast period, but deep convection appears unlikely due to warm temperatures

SPC 0700Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1048 PM CST Mon Jan 20 2025 Valid 221200Z - 231200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Wednesday. ...Synopsis... A large upper trough will remain over all but the westernmost CONUS on Wednesday, with a leading trough exiting the East Coast early in the day. At that time, high pressure will firmly be in place over the East, with strong north winds over the Gulf of Mexico and western Atlantic. A weak surface low may develop along the front over the

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1046 PM CST Mon Jan 20 2025 Valid 211200Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for thunderstorms appears negligible across the U.S. today through tonight. ...Discussion... Ridging to the north of the blocking mid-level high centered over the mid-latitude eastern Pacific is rebuilding, as an initially suppressing short wave perturbation progresses inland across British Columbia. The latter feature is forecast to dig through the northern U.S. Rockies and adjacent Great Plains by 12Z Wednesday, reinforcing large-scale troughing now encompassing much of central

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0141 PM CST Mon Jan 20 2025 Valid 202000Z - 211200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... No thunderstorms are expected across the U.S. through tonight. ...20z Update... No changes are needed to the D1 Convective Outlook. See previous discussion below for more information. ..Thornton/Mosier.. 01/20/2025 .PREV DISCUSSION... /ISSUED 1028 AM CST Mon Jan 20 2025/ ...Synopsis... Another surge of cold air is anticipated across the CONUS, reinforcing the polar airmass already in place. This will result in a maintenance of dry and stable conditions, with

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1102 AM CST Mon Jan 20 2025 Valid 211200Z - 221200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not forecast on Tuesday through Tuesday night. ...Synopsis... Thunder potential will be nil across much of the CONUS during the D2 period. Deep convection will be relegated to the Gulf, initially over the west-central portion before spreading towards the southeast part late. The slimmest of elevated buoyancy (MUCAPE below 100 J/kg) along the Upper TX to LA Gulf Coast may coincide with mixed-phase parcels, supporting weak convection

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1028 AM CST Mon Jan 20 2025 Valid 201630Z - 211200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... No thunderstorms are expected across the U.S. through tonight. ...Synopsis... Another surge of cold air is anticipated across the CONUS, reinforcing the polar airmass already in place. This will result in a maintenance of dry and stable conditions, with no thunderstorms anticipated. Some deeper convection is possible late tonight/early tomorrow along the middle/upper TX Coast as warm-air advection strengthens throughout the warm sector of surface low developing over the