SPC 1730Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1155 AM CDT Tue Oct 21 2025 Valid 221200Z - 231200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not forecast on Wednesday or Wednesday night. ...New England... An occluded cyclone will steadily move northeast from the Lake Huron vicinity into QC during the period. The low-level warm conveyor ahead of the bent-back occluded front will pivot northeast across and eventually out of New England through the day. Meager buoyancy is anticipated where strong deep-layer shear can persist over eastern/coastal New England midday into the afternoon. Scattered low-topped showers should dominate, with isolated embedded thunderstorms possible. Despite weak convective intensity, fast low-level south-southeasterlies, mainly across ME, might foster a few locally strong gusts. ...Southwest... A compact shortwave trough moving across southern CA into the Lower CO Valley will aid in scattered thunderstorms from the Sierra NV Mountains to the Four Corners vicinity on Wednesday afternoon and evening. Much of this activity should be high-based and low-topped over lower elevations. Meager buoyancy and weak lower-level flow will minimize severe potential. But a few locally strong gusts are possible amid large surface temperature-dew point spreads. ..Grams.. 10/21/2025
