SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1119 PM CST Mon Feb 01 2021 Valid 021200Z - 031200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible along the Pacific Northwest Coast. ...Pacific Northwest Coast... Heights will fall across the Pacific Northwest during the first half of the period as a weak short-wave trough ejects inland ahead of a 100+kt speed max. This upstream feature will dig toward the OR Coast late in the period along with a secondary low-level surface boundary/convergence zone. Very cold mid-level temperatures (minus 30-34 at 500mb) will spread inland by mid day, and cooling/steepening profiles should become more favorable for at least weak, low-topped convection. Forecast soundings suggest some threat for lightning discharge as EL levels should exceed -20C, though cold profiles will likely limit overall instability. ..Darrow.. 02/02/2021
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