Alert archive / North Carolina / High Wind Watches in 2017

High Wind Watch 3, NWS Greenville-Spartanburg, SC

September 10, 20176 counties in South Carolina; 7 counties in North Carolina; 6 counties in Georgia

NWS Greenville-Spartanburg, SC issued this high wind watch at Sep 10, 2017, 5:30 AM EDT for 6 counties in South Carolina; 7 counties in North Carolina; 6 counties in Georgia. It took effect at Sep 11, 2017, 8:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Sep 10, 2017, 5:30 AM EDT (09:30 UTC)
In effect from
Sep 11, 2017, 8:00 AM EDT
Expired
Sep 10, 2017, 3:34 PM EDT
In force
Issued by
NWS Greenville-Spartanburg, SC

Counties Elbert County, GA, Franklin County, GA, Habersham County, GA, Hart County, GA, Rabun County, GA, Stephens County, GA, Cleveland County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Polk County, NC, Rutherford County, NC, Transylvania County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Greenwood County, SC, Laurens County, SC, Union County, SC

The radar

The Greer radar (KGSP), 35 km from the middle of the area, began a volume at 09:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 9.5 hours before the alert went out and 236 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2017-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2017-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1994 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

659 
WWUS72 KGSP 100930
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
530 AM EDT Sun Sep 10 2017

...STRONG WINDS ASSOCIATED WITH IRMA WILL IMPACT PORTIONS OF THE 
AREA MONDAY AND MONDAY NIGHT...

.A strong pressure gradient between Irma to our west and high
pressure to our northeast will create increasingly strong winds
and wind gusts Monday into Monday night.

GAZ010-017-018-026-028-029-NCZ059-062>065-068-507>510-SCZ001>008-
010>013-019-101730-
/O.NEW.KGSP.HW.A.0003.170911T1200Z-170912T0600Z/
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Northern Jackson-
Macon-Southern Jackson-Transylvania-Henderson-Cleveland-
Rutherford Mountains-Greater Rutherford-Polk Mountains-
Eastern Polk-Oconee Mountains-Pickens Mountains-
Greenville Mountains-Greater Oconee-Greater Pickens-
Greater Greenville-Spartanburg-Cherokee-Anderson-Abbeville-
Laurens-Union-Greenwood-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Cornelia, Demorest, Clarkesville, Hollywood, Boydville, Toccoa, 
Royston, Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, 
Reed Creek, Elberton, Fortsonia, Middleton, Ruckersville, 
Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, 
Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, 
Little River, Hendersonville, Fletcher, Dana, East Flat Rock, 
Tuxedo, Etowah, Shelby, Kings Mountain, Forest City, 
Rutherfordton, Spindale, Saluda, Tryon, Columbus, Mill Spring, 
Mountain Rest, Walhalla, Westminster, Pumpkintown, Tigerville, 
Gowensville, Cleveland, Seneca, Oakway, Easley, Dacusville, 
Clemson, Greenville, Taylors, Greer, Mauldin, Fork Shoals, 
Simpsonville, Berea, Spartanburg, Gaffney, Anderson, Abbeville, 
Calhoun Falls, Laurens, Clinton, Union, Monarch Mills, 
Ware Shoals, and Ninety Six
530 AM EDT Sun Sep 10 2017

...HIGH WIND WATCH IN EFFECT FROM MONDAY MORNING THROUGH LATE
MONDAY NIGHT...

The National Weather Service in Greenville-Spartanburg has issued
a High Wind Watch, which is in effect from Monday morning through
late Monday night.

* LOCATIONS...Northeast Georgia, the western Upstate of South
  Carolina, and the southern mountains of North Carolina.

* HAZARDS...Strong winds will combine with increasingly saturated
  soils to bring down trees and possibly power lines.

* TIMING...Winds will increase Monday morning becoming strong by
  afternoon. The strong winds will continue into the evening.

* WINDS...Northeast 20 to 30 mph with gusts up to 50 mph.

* IMPACTS...Strong winds may blow down limbs, trees, and power 
  lines. Scattered power outages are expected. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph...or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
1 follow-up statement
015 
WWUS72 KGSP 101934
NPWGSP

URGENT - WEATHER MESSAGE
National Weather Service Greenville-Spartanburg SC
334 PM EDT Sun Sep 10 2017

...STRONG WINDS ASSOCIATED WITH IRMA WILL IMPACT PORTIONS OF THE
AREA MONDAY AND MONDAY NIGHT...

.A strong pressure gradient between Irma to our west and high
pressure to our northeast will create increasingly strong winds
and wind gusts Monday into Monday night.

GAZ010-017-018-026-028-029-NCZ059-062>065-068-507>510-SCZ001>008-
010>013-019-110345-
/O.UPG.KGSP.HW.A.0003.170911T1200Z-170912T0600Z/
/O.NEW.KGSP.HW.W.0003.170911T1200Z-170912T0600Z/
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Northern Jackson-
Macon-Southern Jackson-Transylvania-Henderson-Cleveland-
Rutherford Mountains-Greater Rutherford-Polk Mountains-
Eastern Polk-Oconee Mountains-Pickens Mountains-
Greenville Mountains-Greater Oconee-Greater Pickens-
Greater Greenville-Spartanburg-Cherokee-Anderson-Abbeville-
Laurens-Union-Greenwood-
Including the cities of Clayton, Pine Mountain, Mountain City, 
Cornelia, Demorest, Clarkesville, Hollywood, Boydville, Toccoa, 
Royston, Lavonia, Franklin Springs, Canon, Hartwell, Nuberg, 
Reed Creek, Elberton, Fortsonia, Middleton, Ruckersville, 
Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, 
Highlands, Wolf Mountain, Cashiers, Brevard, Cedar Mountain, 
Little River, Hendersonville, Fletcher, Dana, East Flat Rock, 
Tuxedo, Etowah, Shelby, Kings Mountain, Forest City, 
Rutherfordton, Spindale, Saluda, Tryon, Columbus, Mill Spring, 
Mountain Rest, Walhalla, Westminster, Pumpkintown, Tigerville, 
Gowensville, Cleveland, Seneca, Oakway, Easley, Dacusville, 
Clemson, Greenville, Taylors, Greer, Mauldin, Fork Shoals, 
Simpsonville, Berea, Spartanburg, Gaffney, Anderson, Abbeville, 
Calhoun Falls, Laurens, Clinton, Union, Monarch Mills, 
Ware Shoals, and Ninety Six
334 PM EDT Sun Sep 10 2017

...HIGH WIND WARNING IN EFFECT FROM 8 AM MONDAY TO 2 AM EDT
TUESDAY...

The National Weather Service in Greenville-Spartanburg has issued
a High Wind Warning, which is in effect from 8 AM Monday to 2 AM
EDT Tuesday. The High Wind Watch is no longer in effect.

* LOCATIONS...Northeast Georgia, the western Upstate of South 
  Carolina, and the southern mountains of North Carolina.

* HAZARDS...Strong winds will combine with increasingly 
  saturated soils to bring down trees and possibly power lines.

* TIMING...Winds will increase Monday morning becoming strong by 
  afternoon. The strong winds will continue into the evening.

* WINDS...Northeast 25 to 35 mph with gusts up to 55 mph.

* IMPACTS...Strong winds may blow down limbs, trees, and power 
  lines. Scattered power outages are expected. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please report damaging winds by calling the National Weather
Service toll free at...1...800...2 6 7...8 1 0 1. Leave a message
with your observation and the specific location where it
occurred. You can also post your report to National Weather
Service Greenville Spartanburg Facebook or tweet your report
using hashtag nwsgsp.

&&

$$

NCZ033-035>037-048>053-056>058-069>072-082-501>506-SCZ009-014-
110345-
/O.NEW.KGSP.WI.Y.0011.170911T1200Z-170912T0600Z/
Avery-Alexander-Iredell-Davie-Madison-Yancey-Mitchell-Swain-
Haywood-Buncombe-Catawba-Rowan-Graham-Lincoln-Gaston-Mecklenburg-
Cabarrus-Union-Caldwell Mountains-Greater Caldwell-
Burke Mountains-Greater Burke-McDowell Mountains-Eastern McDowell-
York-Chester-
Including the cities of Ingalls, Banner Elk, Newland, Bethlehem, 
Ellendale, Millersville, Taylorsville, Hiddenite, Stony Point, 
Statesville, Mooresville, Farmington, Fork Church, Mocksville, 
Advance, Faust, Mars Hill, Marshall, Walnut, Allenstand, 
Hot Springs, Luck, Swiss, Burnsville, Celo, Micaville, 
Ramseytown, Busick, Spruce Pine, Poplar, Alarka, Almond, 
Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, 
Cruso, Cove Creek, Asheville, Hickory, Newton, St. Stephens, 
Salisbury, Robbinsville, Stecoah, Lincolnton, Crouse, Gastonia, 
Charlotte, Concord, Kannapolis, Monroe, Trinity, Indian Trail, 
Weddington, Patterson, Kings Creek, Lenoir, Sawmills, 
Granite Falls, Jonas Ridge, Morganton, Pleasant Grove, Valdese, 
Ashford, Sugar Hill, Woodlawn, Old Fort, Marion, Nebo, 
Dysartsville, Fero, Glenwood, Catawba, Rock Hill, Chester, 
Cornwell, and Great Falls
334 PM EDT Sun Sep 10 2017

...WIND ADVISORY IN EFFECT FROM 8 AM MONDAY TO 2 AM EDT TUESDAY...

The National Weather Service in Greenville-Spartanburg has issued
a Wind Advisory, which is in effect from 8 AM Monday to 2 AM EDT
Tuesday.

* LOCATIONS...The mountains of western North Carolina and
  Northeast Georgia and parts of central North and South Carolina
  around the Charlotte area.

* HAZARDS...Strong winds will combine with increasingly saturated
  soils to bring down some trees and possibly power lines.

* TIMING...Winds will increase Monday morning becoming strong by 
  afternoon. The strong winds will continue into the evening.

* WINDS...Northeast 20 to 30 mph with gusts up to 45 mph.

* IMPACTS...Strong winds may blow down limbs, trees, and scatter
  loose outdoor objects.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult...especially for high
profile vehicles. Use extra caution.

Stay tuned to NOAA Weather Radio or your favorite source of
weather information for the latest updates. Additional details
can be found at www.weather.gov/gsp.

&&

$$

CDG

What forecasters said that day

The local office's own words before this high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this high wind watch went out at Sep 10, 5:25 AM EDT, 5 minutes earlier.

Area forecast discussion, Sep 10, 5:25 AM EDT, 5 minutes before
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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 10, 4:36 AM EDTFlash Flood WatchGSP47 hr
Sep 10, 3:34 PM EDTHigh Wind WarningGSPAbbeville, Anderson, Cherokee, Greenwood, Laurens, Union31 hr
Sep 10, 3:34 PM EDTWind AdvisoryGSPAbbeville, Anderson, Cherokee, Chester, Greenwood, Laurens and 2 more36 hr

Nearby

High Wind Watches in North Carolina, 2017High Wind Watches in South Carolina, 2017High Wind Watches in Georgia, 2017Every high wind watch in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.