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Weather Impacts Briefing February 23 rd 2011 NWS Nashville *6 To mute your line #6 to unmute your line. Quick Summary. Heavy rain and severe weather threat Flash Flooding possible Thu/Thu Evening Especially northwest Middle TN Squall line with damaging winds likely late Thursday

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  1. Weather Impacts BriefingFebruary 23rd 2011NWS Nashville*6 To mute your line#6 to unmute your line

  2. Quick Summary • Heavy rain and severe weather threat • Flash Flooding possible Thu/Thu Evening • Especially northwest Middle TN • Squall line with damaging winds likely late Thursday • Isolated tornadoes cannot be ruled out

  3. Heavy Rain/Flooding Potential • Highest rain totals northwest ½ of Middle TN • Flash Flood Watch in effect • Rain will begin tonight northwest and overspread the area Thursday • Heaviest rains Thursday Afternoon/Evening • Recent dry conditions will help reduce rises on area rivers • A southeast shift in the heavy rain axis would enhance the river flood threat

  4. Flash Flood Watch Thu/Thu Night

  5. Moderate to Severe Drought

  6. Forecast Rainfall Totals into Fri.

  7. Severe Weather • Classic high shear/low instability setup • Main impacts expected from squall line in the late afternoon and early evening • Damaging winds main threat • Isolated tornadoes possible • Highest severe potential near and west of I-65

  8. Day 2 SPC Outlook

  9. Summary • Heavy rain expected. • Flash Flooding possible late Thursday into Thursday Evening northwest Middle TN • Severe Thunderstorm potential • Highest between 4 pm and Midnight Thursday • Damaging winds main threat • Isolated tornadoes possible • Additional heavy rain/severe weather potential late Sunday into Monday

  10. QUESTIONS?615.754.8502WEATHER.GOV/NASHVILLE

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