SPC 0830Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0127 AM CST Sun Nov 05 2017 Valid 071200Z - 081200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe storms are not expected across the U.S. Tuesday. ...Synopsis... Positively tilted troughing within the upper flow field across the U.S. will gradually shift southeastward out of the Rockies and across the Plains/Midwest. Meanwhile, ridging is progged to expand over the West in the wake of this trough, and ahead of a large upper low moving south-southeast out of the Gulf of Alaska. At the surface, high pressure will prevail across a large/expanding portion of the country in the wake of a surface cold front moving slowly southeastward across Southeast/southern Plains. Showers and scattered thunderstorms are expected in the vicinity of the front during the period, and flow aloft would otherwise be sufficient to support organized convection. However, relatively weak lapse rates and weak large-scale subsidence atop the warm sector should hinder convective intensity -- and preclude appreciable severe risk. ..Goss.. 11/05/2017
from SPC Convective Outlooks http://bit.ly/1N3UAJB
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