SPC Apr 15, 2018 0600 UTC Day 2 Convective Outlook

By Newsroom America Feeds at 15 Apr 02:17

SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1159 PM CDT Sat Apr 14 2018 Valid 161200Z - 171200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few strikes of lightning may accompany convection across portions of the Northeast early in the period. Isolated thunderstorms may also be noted across parts of the western United States. ...Northeast... Strong short-wave trough will eject into southern New England by the end of the day2 period. This feature is expected to induce a weak surface low in the lee of the Appalachians which should track across the Delmarva into the lower Hudson River Valley by late afternoon as intense mid-level height falls overspread the region. Although modified warm sector will struggle to advance into southern New England, strong warm advection should aid elevated convection north of the warm front. Forecast soundings suggest a few lightning strikes could accompany the strongest elevated convection. ...West... Diffluent high-level flow will overspread much of the western US in advance of approaching upper trough. While PW values will be seasonally low ahead of the trough, very cold mid-level temperatures are expected north of the jet. Cooling profiles and relatively steep lapse rates should prove adequate for a few thunderstorms from coastal CA/OR...northeast into portions of MT. ..Darrow.. 04/15/2018 Read more



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