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Severe Weather and Flood Threats: Update for April 25, 2011 – Nashville Area

A significant weather briefing from NWS Nashville outlines the increasing threats of severe weather and flooding through Wednesday, April 27, 2011. Residents are advised of a Flash Flood Watch and severe thunderstorms, particularly in northwest Middle Tennessee. Rainfall totals of 2 to 4 inches may lead to widespread flash flooding, with the highest threat occurring Tuesday night into Wednesday. Stay informed for updates on storm development and safety measures.

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Severe Weather and Flood Threats: Update for April 25, 2011 – Nashville Area

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Presentation Transcript

  1. Weather Impacts BriefingApril 25th 2011NWS Nashville*6 To mute your line#6 to unmute your line

  2. Summary • Significant weather impacts through Wednesday • Severe weather more likely each day • Flood threat continues to increase • Flash Flood Watch late Tuesday through Wednesday • Will outline general threats today and stress specifics on Tuesday’s call

  3. Rainfall Forecast Through Wed

  4. Flood Threat • 2 to 4 inches of rain has already fallen northwest • Stewart, Montgomery and Robertson Counties • Locally heavy rain and flooding possible today, tonight and Tuesday • Highest threat northwest Middle TN • Main flood threat Tuesday Night into Wednesday • Widespread flash flooding possible • Significant rises likely on area rivers

  5. SPC “Day 1” Outlook

  6. Damaging Wind Potential Through Tonight

  7. Tornado Potential Through Tonight

  8. Next 24 Hours • A few strong storms and downpours this morning • Additional storms redevelop this afternoon • Locally severe with heavy rain • Line of storms possible overnight into Tue AM • Highest severe potential west of I-65

  9. SPC Tuesday Outlook

  10. SPC Wednesday Outlook

  11. SPC Wednesday Severe Chances

  12. Tuesday and Wednesday Impacts • Scattered storms expected to redevelop Tuesday Afternoon – a few could be severe • Widespread storms expected Tuesday night • Some likely severe • Flood threat high • Main cold front comes through Wednesday • Continued high flood threat • Severe weather likely • Supercells

  13. Summary • Significant flood threat – especially from late Tuesday through Wednesday • Slight Risk for severe storms through Tuesday Night • Damaging winds main threat • Isolated tornadoes possible • Moderate Risk for Severe Weather Wednesday • Call at 11 AM Tuesday

  14. QUESTIONS?615.754.8502WEATHER.GOV/NASHVILLE

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