National Weather Service Greenville Spartanburg High Impact Weather Briefing

11

Transcript of National Weather Service Greenville Spartanburg High Impact Weather Briefing

Page 1: National Weather Service Greenville Spartanburg High Impact Weather Briefing
Page 2: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Second Phase of Storm Potential Heavy Rain and Strong

Wind Episode

Tuesday, November 29, 20162:45 PM EST

Greenville/Spartanburg

Page 3: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Rapidly Changing WeatherPattern This Week

Rainfall Issues• Another cold front will be moving into the Tennessee Valley late tonight and Wednesday, and

will then cross our region Wednesday afternoon and Wednesday night.

• After a brief lull with the initial rain, more showers and a few thunderstorms will overspreadthe area Tuesday night – particularly in the wee hours.

• Showers and a few thunderstorms will continue Wednesday and Wednesday night, before ending in the late night hours.

• New rainfall from this point forward will average from 1 to 3 inches. The highest totals should range from northeast Georgia, upstate mountains of South Carolina and the western mountains and foothills of North Carolina.

• Thunderstorms could enhance local rainfall amounts, especially if they repeat over the same areas.

• We will be closely monitoring the intensity of the rain, especially near the recent wildfires, asadditional problems could materialize.

Greenville/Spartanburg

Page 4: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Rapidly Changing WeatherPattern This Week

Wind Issues

• Strong southerly winds will once again develop tonight, and continue into Wednesday . The translation of the next round of strong winds should generally be from west to east Tuesday night into Wednesday.

• Winds are expected to increase to 25 to 35 mph, with a few gusts to 55 mph. This will be most pronounced in the western North Carolina mountains from midnight through Wednesday. A Wind Advisory has been posted. Outside of the highest terrain wind gusts will range from 30 to 40 mph, especially Wednesday.

• Note: Because of the very robust winds aloft - showers and possible thunderstorms couldmix down to the surface and cause localized very strong wind gusts.

• Meanwhile some of the thunderstorms, particularly on Wednesday, could be severe with damaging winds possible. This includes our entire area.

• Overall the return of the stronger winds may once again knock down some trees and power lines, with power outages possible.

Greenville/Spartanburg

Page 5: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Weather Map for WednesdayGreenville/Spartanburg

Page 6: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Flooding HazardsGreenville/Spartanburg

Page 7: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Greenville/Spartanburg

Wind Advisory in Yellow From Midnight Through Wednesday Potential Wind Gusts to 55 mph.

Page 8: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Tuesday’s Severe Thunderstorm Forecast Greenville/Spartanburg

Page 9: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Wednesday’s Severe Thunderstorm Forecast Greenville/Spartanburg

Page 10: National Weather Service Greenville Spartanburg High Impact Weather Briefing

Day 1 HPC Excessive RainfallGreenville/Spartanburg

Page 11: National Weather Service Greenville Spartanburg High Impact Weather Briefing

The End

• Please go to www.weather.gov/gsp for the latestforecasts.

• These slides are also posted at:www.weather.gov/media/gsp/YouTube/brief.pdf

Greenville/Spartanburg