SPC Oct 12, 2017 Day 4-8 Severe Weather Outlook

By Newsroom America Feeds at 12 Oct 04:13

Day 4-8 Outlook
Day 4-8 Convective Outlook NWS Storm Prediction Center Norman OK 0310 AM CDT Thu Oct 12 2017 Valid 151200Z - 201200Z ...DISCUSSION... ...Sunday/Day 4 to Monday/Day 5... The medium range models including the ECMWF, GFS, Canadian and UKMet move an upper-level trough across the Great Plains into the Mid Mississippi Valley Sunday and Sunday night. A marginal severe threat will be possible along a cold front moving through the Ohio and Tennessee Valleys into the central Appalachians. On Monday, the front is forecast to move into the far southeastern part of the U.S. Marginally severe thunderstorms will be possible Monday afternoon in southeastern Georgia and northern Florida. ...Tuesday/Day 6 to Thursday/Day 8... On Tuesday, a surface high is forecast to dominate across much of the east third of the nation. Low-level moisture should be confined to the eastern Gulf Coast States where thunderstorm development will be possible. On Wednesday and Thursday, the surface high is still forecast across the eastern U.S where the ECMWF develops an upper-level ridge. For this reason, thunderstorm development should remain very isolated and confined to the immediate coastal areas of the Gulf of Mexico. Read more

http://www.spc.noaa.gov/products/exper/day4-8/

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