Tag: spc

SPC 1200Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1120 PM CST Wed Jan 01 2025 Valid 021200Z - 031200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected today. ...Discussion... Broad northwesterly flow at mid levels will maintain offshore flow along the Gulf and Atlantic coasts. With height rises expected across the southern Plains, a weak coastal boundary will be shunted a bit east across the northwestern Gulf basin. As a result, any convective threat capable of generating lightning will focus along this boundary. ..Darrow/Marsh.. 01/02/2025 Read more

SPC 1730Z Day 2 Outlook Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1102 AM CST Wed Jan 01 2025 Valid 021200Z - 031200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms are not expected Thursday. ...Synopsis... Moderate to strong northwest flow aloft will exist across the CONUS on Thursday, extending from an upper ridge over the West Coast to the East Coast. As this western ridge shifts eastward, a tightening midlevel thermal gradient will develop over the Plains, with a minor trough amplification from the Mid/Lower MS Valley into the Southeast. At the surface, high pressure will maintain a

SPC 1630Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1021 AM CST Wed Jan 01 2025 Valid 011630Z - 021200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not expected through tonight. Fast zonal flow is present today over most of the CONUS, with dry and stable conditions prevailing in most areas. Isolated lightning strikes remain possible along the coast of ME for another couple of hours within a belt of strong onshore flow. This threat should end by 21z. Elsewhere, no thunderstorms are forecast for today. ..Hart/Karstens.. 01/01/2025 Read more

SPC 0100Z Day 1 Outlook Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0719 PM CST Tue Dec 31 2024 Valid 010100Z - 011200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PART OF THE MID-ATLANTIC... ...SUMMARY... Isolated damaging gusts, hail and a brief tornado will be possible in parts of the Mid-Atlantic including New Jersey and southern Long Island early this evening. ...Mid-Atlantic/New Jersey/Southern Long Island... The latest water vapor imagery shows a negatively-tilted shortwave trough moving northeastward across the Mid-Atlantic and central Appalachian Mountains. At the surface, a trough is located from Maryland extending southwestward