Weather Impacts Briefing NWS Nashville December 6, 2013

Impacts Summary Three rounds of winter weather possible – Round One northwest areas on Today Clarksville, Erin, Camden, Springfield, Dickson, Linden – Round Two Saturday evening into Sun. Morning More widespread winter weather impacts expected than with round one – Northwest half of Middle TN affected including the Nashville Metro area – Round Three Sunday night thru Monday Some light ice accumulation possible, but looking more like snow. Locally heavy rain through the weekend Except Saturday when mostly dry conditions expected

Friday System Impacts Rain will change to freezing rain beginning in far northwest Middle TN this morning – Mixing with sleet in the afternoon/evening – Ice accumulations of 1/4 to 1/3 inch expected Greatest impacts around Clarksville, Camden, Erin and Dover Some tree/power lines downed Travel impacted – Precipitation ending in the evening

Friday System Impacts…cont Changeover to freezing rain expected from the northwest during the late aftn-evening – Ice accumulations of 0.1 to 0.2 inch possible around Springfield, Joelton, Dickson, Ashland City and Waverly – Light ice accumulations (0.1 inch or less) expected around Nashville, Waynesboro, Gallatin – Freezing rain ending in the evening Little ice impact expected further southeast and on the Plateau

Ice Storm Warning 9 am through midnight Winter Weather Advisory 4 pm through midnight

Friday System Impacts…cont

Ice Impact Index - Experimental

Ice Impact Image Description

Saturday Night-Sunday Impacts Freezing rain/sleet redevelops during the evening/early morning hours – Greatest impacts northwest half of Middle TN – Significant ice impacts (1/4 inch or greater) possible northwest of a Portland to Joelton to Dickson to Camden line – Lesser ice impacts (1/4 inch or less) from the Nashville metro area down to Waynesboro/Lawrenceburg – Temperatures above freezing all areas by Sunday afternoon

Saturday Night-Sunday

Ice Impact Index - Experimental

Heavy Rain/Flooding Impacts Locally heavy rains possible today into Friday – especially southeastern 2/3 of Middle TN – 2 to 3 inches of rain expected – Localized flooding problems possible Break in the rainfall on Saturday More heavy rain potential on Sunday – Greatest potential again southeast half – 1 to locally 2 inches possible – Localized creek flooding and minor river flooding possible

5 Day Rainfall Forecast – thru next Wed am

Sunday Night-Monday Impacts Freezing drizzle/sleet redevelops during the late night hours for the western half of middle TN Freezing drizzle lingers into Monday Changeover to all snow Monday night – Early forecasts thoughts of 1 to 2 inches east of I-65

Impacts Summary Two rounds of winter weather expected – Round One northwest areas on Friday Clarksville, Erin, Camden, Springfield, Dickson, Linden – Round Two Saturday evening into Sun. Morning More widespread winter weather impacts expected than with round one – Northwest half of Middle TN affected including the Nashville Metro area Locally heavy rain through the weekend Except Saturday when mostly dry conditions expected

Briefing at 430 am Friday Call: code:

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