Tag: dec

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1107 AM CST Mon Dec 30 2024 Valid 311200Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible from the Outer Banks into southern New England late Tuesday into early Wednesday. Severe thunderstorms are not expected. ...Synopsis... An upper trough will pivot northeast from the Midwest toward the Mid-Atlantic/Northeast on Tuesday. A prior cold frontal passage across this region will result in limited boundary-layer moisture despite increasing low-level south/southeasterly flow ahead of a surface low. The exception will be along the immediate

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1022 AM CST Mon Dec 30 2024 Valid 301630Z - 311200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. ...OH Valley tonight... An 80-100 knot mid-level jet max will move quickly eastward across the central Plains today, and into the mid MS Valley tonight. Strong cyclogenesis will occur in advance of this system over MO/IL, with the primary baroclinic zone sweeping across AR into KY/TN. Strengthening southerly low-level winds in the warm sector of the deepening low will result in

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0655 PM CST Sun Dec 29 2024 Valid 300100Z - 301200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible this evening in parts of the Atlantic Coastal states, in the Ohio and Tennessee Valleys, Intermountain West and Pacific Northwest. No severe weather is expected. ...DISCUSSION... A large-scale mid-level trough will move quickly northeastward across the Ohio Valley, central Appalachians and Carolinas this evening. An associated surface low will move through southwest Ontario, as a cold front advances toward the southern and middle

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1020 AM CST Sun Dec 29 2024 Valid 291630Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON OVER PARTS OF THE CENTRAL/EASTERN CAROLINAS... ...SUMMARY... Sporadic damaging wind gusts are possible this afternoon over the central and eastern Carolinas into southern Virginia. More-isolated severe storms may occur across parts of the central Appalachians and Ohio Valley, and over southernmost Florida. ...Carolinas... A large and negatively-tilted shortwave trough is rotating northeastward across the TN/OH Valleys today, with intense low and mid-level wind fields

SPC 1300Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0700 AM CST Sun Dec 29 2024 Valid 291300Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE EASTERN GULF COAST NORTHWARD INTO THE CAROLINAS AND SOUTHERN VIRGINIA... ...SUMMARY... A few tornadoes and sporadic damaging to severe gusts are possible today from the eastern Gulf Coast northward into the Carolinas and southern Virginia. More-isolated severe storms may occur across parts of the central Appalachians and Ohio Valley, and over southernmost Florida. ...Synopsis... In mid/upper levels, a progressive pattern will persist across the

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1029 AM CST Sat Dec 28 2024 Valid 281630Z - 291200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT ACROSS PORTIONS OF EAST TEXAS...LOUISIANA...CENTRAL AND SOUTHERN MISSISSIPPI...AND SOUTHWESTERN ALABAMA.... ...SUMMARY... Tornadoes (some strong with at least EF2 damage possible), severe gusts and hail are expected today into tonight. The threat area will shift eastward from parts of north and central Texas early, across east Texas and the lower Mississippi Valley today, then over the Tennessee Valley, parts of Georgia, and the