accumulating snow and windy conditions in the north ... · pdf filegreenville-spartanburg, sc...

Greenville-Spartanburg, SC Weather Forecast Office Presentation Created

4/23/2018 5:02 AM Follow us on Twitter Follow us on Facebook

What Has Changed?

A Wind Advisory has been issued for the

higher elevations

Decision Support Briefing #2

As of: 4/23/2018 4:26 AM

Heavy Rain and Flooding Possible Across Much of the Western Carolinas

& Northeast Georgia through Tonight

Windy Conditions expected across the higher elevations

Today & Tonight

https://www.facebook.com/NWSGray/

https://twitter.com/NWSGray

https://twitter.com/nwsgsp

https://www.facebook.com/NWSGSP/



Main Points

Hazard Impacts Location Timing

Flooding Long-duration excessive rainfall

may result in flooding of low-

lying areas, streams, and creeks.

Throughout the western

Carolinas and northeast

Georgia, but especially along

the eastern slopes of the Blue

Ridge and the adjacent

foothills.

Through Tonight

River Flooding

Main stem rivers will rise due to

the heavy rain, with some

possibly exceeding bankfull and

flooding surrounding farms and

low-lying areas.

The upper reaches of the

French Broad River, especially

around Blantyre, will be most

prone to flooding as well as

associated tributaries. Rises

to near bankfull may also be

observed along the Saluda,

Broad, and Catawba Rivers.

Developing today and

continuing through

tonight, possibly

lingering into Tuesday.

Wind

A Wind Advisory

is now in effect

Strong winds may blow around

unsecured objects, knock down

limbs and weak trees, and

produce scattered power

outages.

Elevations above 3500 feet in

the North Carolina mountains.

Winds will ramp up early

this morning and then

maximize during the

daytime hours before

gradually diminishing

tonight.







Flooding: Mainly eastern mtn slopes & foothills

Severe Storms: Lower Piedmont this afternoon

Wind: Mountains, above 3500 feet AGL

Summary of Greatest Impacts

None Limited Elevated Significant Extreme









Event Summary

A Wind Advisory is now in effect for elevations above 3500 ft in the

North Carolina mountains. Very windy conditions are expected, with

winds expected to ramp up early this morning, maximizing during the

daytime hours before gradually diminishing tonight. Strong winds may

blow around unsecured objects, knock down limbs and weak trees,

and produce scattered power outages.

Heavy rain will continue to move into the forecast area today and

persist through tonight.

Flooding will be most likely along the eastern slopes of the southern

Appalachians and the adjacent foothills.

Isolated to scattered thunderstorms this afternoon and tonight across

the lower Piedmont will produce occasional cloud-to-ground lightning

and brief gusty winds.







Regional NWS Office Contacts

NWS Greenville- Spartanburg, SC

NWS Morristown, TN

NWS Atlanta, GA

NWS Columbia, SC

NWS Raleigh, NC

NWS Blacksburg, VA





http://www.weather.gov/mrx

http://www.weather.gov/gsp




http://www.facebook.com/NWSGSP

http://www.twitter.com/NWSGSP

http://www.weather.gov/mrx

http://www.facebook.com/NWSMorristown

http://www.twitter.com/NWSMorristown

http://www.weather.gov/ffc

http://www.facebook.com/NWSAtlanta

http://www.twitter.com/NWSAtlanta

http://www.weather.gov/cae

http://www.facebook.com/NWSColumbia

http://www.twitter.com/NWSColumbia

http://www.weather.gov/rah

http://www.facebook.com/NWSRaleigh

http://www.twitter.com/NWSRaleigh

http://www.weather.gov/rnk

http://www.facebook.com/NWSBlacksburg

http://www.twitter.com/NWSMorristown



Web:

www.weather.gov/gsp

Phone (public):

864-848-9970

E-mail:

[email protected]

Facebook:

NWSGSP

Twitter:

@NWSGSP

YouTube:

NWSGreer

Contact and Next Briefing Information

Briefing Webpage:

www.weather.gov/gsp/brief

Next Briefing When: If Needed

Method: PDF Briefing Slides

Disclaimer: The information contained within this briefing

is time-sensitive, do not use after 7 pm, April 23, 2018.






https://www.facebook.com/NWSGSP

http://www.twitter.com/NWSGSP

http://www.youtube.com/NWSGreer

http://www.weather.gov/gsp/brief

accumulating snow and windy conditions in the north ... · pdf filegreenville-spartanburg, sc...

Documents