SPC 2000Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0140 PM CST Thu Nov 06 2025 Valid 062000Z - 071200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast through tonight across the contiguous United States. ...20z Update... The previous forecast remains on track with no changes required. See the previous discussion below for details. ..Moore.. 11/06/2025 .PREV DISCUSSION... /ISSUED 0954 AM CST Thu Nov 06 2025/ ...Synopsis... A low-amplitude, progressive flow regime will characterize the upper pattern today across the Lower 48 states. A mid-level trough featuring a few vorticity maxima will consolidate and amplify as this trough moves across the northern Great Plains into the Upper Midwest by early Friday morning. In the low levels, a cyclone will deepen during the period and move across the ND/MN vicinity to the Upper Peninsula of MI. A strengthening warm conveyor will probably result in isolated thunderstorm activity tonight across the mid MS Valley into the southern Great Lakes before a cold front sweeps east. Elsewhere, intermittent showers and isolated thunderstorms will accompany a potent 500-mb speed max forecast to move east from the eastern Pacific into the Pacific Northwest. A low-latitude disturbance is forecast to eject across the southern Gulf of America toward south Florida late in the period. This feature should encourage a weak surface trough to focus near the south Florida Atlantic Coast. Scattered convection is expected to develop near/east of this boundary during the overnight hours.
