Tag: 1930

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SPC Dec 10, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 1250 PM CST Tue Dec 10 2024 Valid 121200Z - 131200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Thursday. ...Discussion... A quiescent synoptic pattern for thunderstorm activity is expected on Thursday. In the wake of a cold front pushing offshore of the entire East Coast on D2, an Arctic air mass will settle into the Upper Great Lakes. A couple lightning flashes are possible in the heaviest lake-effect snow bands immediately downstream of the Lower Great Lakes, but probabilities appear to be
Official

SPC Dec 9, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0111 PM CST Mon Dec 09 2024 Valid 111200Z - 121200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM EASTERN NORTH CAROLINA TO SOUTHERN NEW ENGLAND... ...SUMMARY... Strong to isolated severe thunderstorms are possible along and ahead of a cold front from the Mid-Atlantic into the Florida Peninsula on Wednesday. ...Synopsis... As a strong mid-level trough becomes negatively tilted across the eastern CONUS, a surface low will deepen as it moves north along the spine of the Appalachians and tropospheric flow will strengthen across
Official

SPC Dec 8, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0119 PM CST Sun Dec 08 2024 Valid 101200Z - 111200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FOR PARTS OF CENTRAL AND SOUTH AL...SOUTHWEST GA...AND THE ADJACENT FL PANHANDLE... ...SUMMARY... Isolated severe thunderstorms are possible across portions of central and south Alabama, southwest Georgia, and the adjacent Florida Panhandle on Tuesday. ...Synopsis... A deep mid/upper-level trough across much of the central/eastern CONUS will begin to shift eastward on Tuesday. This trough will take on a neutral tilt as a significant shortwave moves through
Official

SPC Dec 7, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0121 PM CST Sat Dec 07 2024 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are possible from the Lower Mississippi Valley into much of Alabama and the Florida Panhandle on Monday. The probability for severe thunderstorms is low. ...Synopsis... A broad mid-level trough will deepen across the central CONUS, encouraging appreciable low-level moisture return across portions of the Lower MS Valley into the Southeast on Monday. The approaching mid-level trough, and increasing low-level flow/advection over the Lower MS Valley, will result
Official

SPC Dec 1, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0106 PM CST Sun Dec 01 2024 Valid 031200Z - 041200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible along the Texas Coast. No severe thunderstorms are expected. ...Synopsis... Upper troughing is forecast to cover the eastern CONUS early Tuesday morning, with an embedded shortwave trough progressing through the Mid-Atlantic States. Mean upper troughing is expected to continue gradually eastward throughout the day, while another shortwave trough drops southeastward through the Canadian Prairies and into the northern Plains/Upper Midwest late Tuesday/early Wednesday. At
Official

SPC Nov 30, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0122 PM CST Sat Nov 30 2024 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible on Monday across south Texas. Severe storms are not expected. ...Synopsis... An expansive mid/upper-level trough over the eastern CONUS will move slowly eastward on Monday, while upstream midlevel height rises reinforce surface high pressure from the northern Plains into the Southeast. As a result, boundary-layer moisture will remain confined to the Gulf of Mexico, limiting thunderstorm potential across much of the CONUS. The
Official

SPC Nov 29, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0128 PM CST Fri Nov 29 2024 Valid 011200Z - 021200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected on Sunday. ...Synopsis... Little change to the pattern on Sunday with stable conditions over much of the CONUS. A large upper trough will remain over eastern North America, with a ridge along the West Coast. A substantial surface high will remain from the Plains into the Southeast, with instability well offshore. ..Jewell.. 11/29/2024 Read more
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SPC Nov 26, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0129 PM CST Tue Nov 26 2024 Valid 281200Z - 291200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE SOUTHEAST STATES... ...SUMMARY... Scattered strong to potentially severe thunderstorms are possible Thursday across parts of the Southeast. ...Southeast/Carolinas... A low-amplitude shortwave trough and surface cold front will move steadily east across the southeast states/mid-Atlantic region on Thursday, preceded by a northward transport of an increasingly moist boundary-layer air mass. Mid-level lapse rates will be weaker than on Wednesday/D2, and generally weak buoyancy
Official

SPC Nov 25, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0125 PM CST Mon Nov 25 2024 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... The risk for severe weather appears negligible through this period, but widely scattered thunderstorms are possible across parts of the lower Mississippi Valley into Tennessee Valley by late Wednesday night. ...Synopsis... Models suggest that mid/upper ridging across the subtropical eastern Pacific into Gulf of Mexico will undergo suppression into and through this forecast period, with some amplification of troughing within the mid-latitude westerlies east of the Rockies into
Official

SPC Nov 21, 2024 1930 UTC Day 3 Severe Thunderstorm Outlook

SPC 1930Z Day 3 Outlook Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0129 PM CST Thu Nov 21 2024 Valid 231200Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms appear unlikely across the CONUS Saturday. ...Synopsis... Mid-level flow across the CONUS is forecast to become more zonal with time as prominent troughing on either coast gradually deamplifies. Ridging over the central CONUS will weaken and shift eastward as the East Coast trough moves offshore. To the west, strong mid-level flow will move inland across the Pacific Northwest and northern Rockies as the upper low cuts