SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1250 AM CST Mon Mar 08 2021 Valid 091200Z - 101200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorm development will be possible across parts of the West Coast Tuesday and Tuesday night, and in parts of the north-central states Tuesday night. ...DISCUSSION... An upper-level ridge across the Ohio and Tennessee Valleys will move eastward toward the East Coast on Tuesday as southwest mid-level flow becomes established across much of the central U.S. In response, a low-level jet from the southern Plains to the lower Missouri Valley will strengthen throughout the day. The jet will become focused across southeastern Kansas this evening. A few elevated thunderstorms may develop near the nose of the low-level jet from northwest Missouri into Iowa. Isolated thunderstorms may also develop along and ahead of a cold front moving into southeastern Nebraska. This activity is not expected to become severe because instability will be weak across the region. Further to the west, an upper-level low will move southward across the far eastern Pacific. Large-scale ascent will overspread the West Coast. Associated steep lapse rates will support thunderstorm development from the coast of Oregon southward along much of the coast California. A few thunderstorms may also develop inland across the Sacramento Valley. Instability will be weak in the western U.S. and a severe threat is not expected. Elsewhere across the continental United States thunderstorm development is not expected Tuesday and Tuesday night. ..Broyles.. 03/08/2021
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