Tag: jan.

Official

SPC Jan 28, 2025 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0635 PM CST Mon Jan 27 2025 Valid 280100Z - 281200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm potential will remain very low through tonight. ...Synopsis... Thunderstorm activity through late afternoon/early evening has been focused across western AZ under an upper low where very cold temperatures aloft, combined with modest low-level warming, has supported sufficient buoyancy for lightning production. This environment was sampled well by the 00 UTC FGZ sounding; however, buoyancy is expected to quickly diminish as surface temperatures rapidly cool with the loss of
Official

SPC Jan 27, 2025 1300 UTC Day 1 Convective Outlook

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0630 AM CST Mon Jan 27 2025 Valid 271300Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States through tonight. ...Synopsis... A mid-level low will meander slowly east across southern CA into northwest AZ during the period. A belt of strong upper flow will extend from Baja California east across the southern U.S. while a split flow regime is maintained with troughing over the Great Lakes. In the low levels, a frontal zone will slide southward
Official

SPC Jan 27, 2025 Day 4-8 Severe Weather Outlook

Day 4-8 Outlook Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0353 AM CST Mon Jan 27 2025 Valid 301200Z - 041200Z ...DISCUSSION... ...Thursday/Day 4 and Friday/Day 5... A mid-level low is forecast to move into the southern High Plains on Thursday/Day 4, as an associated jet streak moves across Texas. Widespread convection appears likely to be ongoing at the start of the period, related to an MCS along the western edge of the moist sector. It appears the MCS will move into central and northeast Texas during the afternoon, where surface dewpoints should be in the 60s
Official

SPC Jan 27, 2025 0100 UTC Day 1 Convective Outlook

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0629 PM CST Sun Jan 26 2025 Valid 270100Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States through tonight. ...Synopsis... Isolated to scattered thunderstorms are expected to continue through the overnight hours along the southern CA coast and across parts of the south-central U.S. An upper wave evident in water-vapor imagery along the SoCal coast will gradually shift east/southeast towards the lower CO River Valley through 12 UTC Monday. Cold temperatures aloft within the upper
Official

SPC Jan 26, 2025 2000 UTC Day 1 Convective Outlook

SPC 2000Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0156 PM CST Sun Jan 26 2025 Valid 262000Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast across the contiguous United States through tonight. ...20z Update... The prior forecast remains valid with no changes. Scattered elevated thunderstorms ongoing over the ArkLaTex should continue northeastward within the pronounced low-level warm advection regime through tonight. Additional storm development and lightning potential, albeit lower probability, will remain possible this evening over eastern TX with weak low and mid-level ascent continuing for another few