Georgia, 2024

Damaging Winds in Georgia, July 31, 2024

July 31, 2024 · NWS GSP · 2 events in 1 county or zone

A couple of thunderstorms developed over Elbert County during the evening and produced brief damaging wind gusts.

Where it happened

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GSP wrote it up.

A couple of thunderstorms developed over Elbert County during the evening and produced brief damaging wind gusts.

What forecasters said that day

The local office's own words before the first event, 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 the first event at Jul 31, 6:26 PM EST, 29 minutes earlier.

Area forecast discussion, Jul 31, 6:26 PM EST, 29 minutes before
Area Forecast Discussion
National Weather Service Greenville-Spartanburg SC
726 PM EDT Wed Jul 31 2024

.SYNOPSIS...
Daily chances of showers and thunderstorms will continue through
Saturday, with the best coverage most likely in the afternoons
and evenings. A small chance remains that a thunderstorm complex
will cross the mountains in the overnight hours one or more nights.
Very hot and humid weather will continue through Friday, but a cold
front arriving this weekend will bring back more typical
temperatures by Sunday.

&&

.NEAR TERM /THROUGH THURSDAY/...
645 Update...Reduced PoPs sigfnt/ly as the atmos continues
moderately unstable yet triggerless this evening. A few showers and
perhaps a tstm or two may develop across the mtn spine and the ern
zones thru the next update, but not expecting anything real strong
or severe.

As of 229 PM EDT Wednesday: Showers are just creeping into the NC
mountains as a loosely-organized cluster of upstream convection
slides into the forecast area.  General consensus is that it'll
keep moving south and have the most impact on zones along and west
of I-26, where the convective environment, already ripe with some
1500-2000 J/kg sbCAPE and 15-20kts effective shear, will support
strong to severe storms all along its main line.  SPC's Marginal
Risk still looks reasonable for today.  High temperatures this
afternoon should climb into the mid 90s, and although heat
indices will likely reach triple digits along and south of I-85,
the forecast still falls short of Heat Advisory criteria.

This evening, convection will sag south of the forecast area as
it dissipates, and the first part of the overnight is expected to
be quiet.  After midnight, the CAMs still suggest that another MCS
will make a run at the NC mountains from the Cumberland Plateau,
but by this time, the environment will be more or less stable
and any shear will have vanished...so the potential for severe
weather overnight looks limited at best.  Fog and low stratus will
be possible, especially in the mountain valleys.  Lows will fall
into the lower 70s.

Tomorrow, yet another round of convection is expected, more
widespread than whatever activity winds up materializing today.
Most of the CAMs depict some kind of loosely-organized line diving
into the area by late afternoon, but disagree on how far past the
mountains it'll make it.  Should it survive passing the mountains,
it'll encounter an environment rich with 2000+ J/kg sbCAPE and
enough shear to once again expect at least a few severe storms.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/...
As of 208 PM Wednesday: Broad upper ridging extending from the
Southern Plains through the Rockies and Great Basin will retrograde
as a sharp shortwave trough and closed upper low dives through the
Midwest and into the Ohio Valley by Friday morning. Large scale
height falls will begin to overspread the Southern Appalachians in
advance of the trough with associated forcing helping to instigate
numerous showers and thunderstorms across the Tennessee Valley and
into the mountains. At least widely scattered storms will also be
possible outside of the mountains, especially into the evening as
better forcing arrives. 850mb temperatures will continue to warm,
however, and dangerous heat indices will be a concern. High
temperatures will climb into the mid to upper 90s with dewpoints in
the low to mid 70s. Forecast soundings aggressively mix the boundary
to as deep as 700mb, but this appears overdone as evapotranspiration
from wet soils from persistent rounds of convection will likely
preclude exceptionally deep mixing. As such, heat indices outside of
the mountains are forecast to be in the 105-110 degree range and
heat advisories would likely be needed should this trend hold. A few
of the thunderstorms may also be strong to severe with the main
threat being locally damaging winds from microbursts. Forecast
soundings reveal deep inverted-v profiles with substantial DCAPE
supportive of damaging winds with any deeper convective cores.

By Saturday, closed upper low will open as the shortwave trough axis
slides into the Appalachians. An associated surface cold front will
also be approaching the area from the west with the position of the
front dictating where additional convection develops during the day.
The latest GFS solution nudges the front into the area with the
greatest coverage of convection focused generally along and east of
I-77 where as the ECMWF solution is slower with the front and allows
for at least scattered to numerous coverage across much of the area.
Will keep the forecast in line with the national model blend for now
and advertise at least chance PoPs across most of the area until
there's better model agreement. As with Friday, any deeper
convective cores may become strong to severe with locally damaging
winds from microbursts as favorable inverted-v profiles persist.
Increased cloud cover and PoPs will keep temperatures a little
cooler with no heat issues expected to continue.

&&

.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/...
As of 237 PM Wednesday: Heading into the later half of the weekend
on Sunday, the upper trough axis will gradually start to shift east
of the area with the frontal boundary oozing east as well. This will
usher in drier air and help to focus rain chances across the eastern
portion of the area. By early to middle of next week, the pattern
will return to a more typical late summer regime as active northern
stream flow lifts back into New England leaving the Southern
Appalachians on the eastern flank of a sprawling upper ridge
centered across much of the central CONUS. The hottest temperatures
will remain off to our west keeping heat concerns at bay, but
increasing heights and nebulous forcing will greatly limit any
afternoon convection to isolated coverage at best. The one feature
to watch will be a tropical wave currently marching across the
tropical Atlantic over the Leeward Islands. Guidance continues to
depict the potential for consolidation into a tropical cyclone as
the environment improves, but no circulation currently exists, so
this process will take time. There's also considerable uncertainty
regarding eventual track, should a cyclone actually develop. The
wave will become elongated with multiple segments to the wave axis.
Guidance remains split as to which portion of the wave axis may
develop into a tropical cyclone, if any. As of now, the GFS solution
prefers the southern portion of the wave with a track on the west
side of Florida while the ECMWF solution supports potential
development of the northern portion of the wave and a track east of
Florida. Thus, it's still a bit too early to nail down any specifics
with how this feature may evolve.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
At KCLT and elsewhere: VFR conds will likely continue thru the
period across all TAf sites. The NC mtn valleys will have the best
chance of morning fog along with KHKY but for now confidence is too
low for a restriction mention. Afternoon convection will likely
exhibit better coverage, mainly across the higher terrain and
fthills Thu and KAVL and KHKY will be given a prob30 TSRA during
peak heating. Winds will remain light and ill defined at times, yet
mostly likely wsw/ly to nw/ly east of the mtns and nw/ly at KAVL.

Outlook: Daily shower and thunderstorm chances will continue
through the weekend, with the mountains having the best chance
for activity.  Fog/low stratus will be possible each morning,
especially in the mountain valleys and over areas that received
heavy rain the previous day.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...None.
NC...None.
SC...None.

&&

SYNOPSIS...DEO
NEAR TERM...MPR/SBK
SHORT TERM...TW
LONG TERM...TW
AVIATION...SBK
Hazardous weather outlook, Jul 31, 6:17 PM EST, 38 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
717 PM EDT Wed Jul 31 2024

GAZ010-017-NCZ033-035>037-048>053-056-058-059-062>065-501>507-509-
SCZ101>103-012330-
Rabun-Habersham-Avery-Alexander-Iredell-Davie-Madison-Yancey-
Mitchell-Swain-Haywood-Buncombe-Catawba-Graham-Northern Jackson-
Macon-Southern Jackson-Transylvania-Henderson-Caldwell Mountains-
Greater Caldwell-Burke Mountains-Greater Burke-McDowell Mountains-
Eastern McDowell-Rutherford Mountains-Polk Mountains-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
717 PM EDT Wed Jul 31 2024

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, western North Carolina and upstate South Carolina.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ018-026-028-029-NCZ057-068>072-082-508-510-SCZ008>014-019-104>109-
012330-
Stephens-Franklin-Hart-Elbert-Rowan-Cleveland-Lincoln-Gaston-
Mecklenburg-Cabarrus-Union NC-Greater Rutherford-Eastern Polk-
Cherokee-York-Anderson-Abbeville-Laurens-Union SC-Chester-Greenwood-
Greater Oconee-Greater Pickens-Central Greenville-
Southern Greenville-Northern Spartanburg-Southern Spartanburg-
717 PM EDT Wed Jul 31 2024

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, western North Carolina and upstate South Carolina.

.DAY ONE...Tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Temperatures are expected to trend hotter for Thursday and Friday.
Heat index will peak at 105 to 110 in some spots, especially along
and southeast of Interstate 85. A Heat Advisory could be needed.
Anyone spending time outdoors should have plenty of water and take
frequent breaks in the shade.

.SPOTTER INFORMATION STATEMENT...

None.

Krentz

In the hours before

Special weather statement, Jul 31, 3:36 PM EST, 3 hours 19 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
436 PM EDT Wed Jul 31 2024

NCZ036-037-057-312115-
Rowan NC-Davie NC-Iredell NC-
436 PM EDT Wed Jul 31 2024

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN DAVIE...NORTHERN
IREDELL AND NORTHWESTERN ROWAN COUNTIES THROUGH 515 PM EDT...

At 435 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles north of Statesville, or 6 miles west of Harmony, moving
southeast at 20 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to outdoor objects is
         possible.

Locations impacted include...
Statesville, Harmony, Turnersburg, Olin, and Cool Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3582 8060 3573 8073 3575 8091 3588 8101
      3591 8102 3592 8102 3594 8101 3605 8076
TIME...MOT...LOC 2035Z 333DEG 16KT 3593 8088

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

CP

The radar

The Greer radar (KGSP), 105 km away, was scanning. The volume nearest the first event began at 23:56 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Elbert

When
July 31, 6:55 PM EST
Where
Elbert County, 2.37 mi NNE of Fortsonia
Measured
55 kt (63 mph) estimated gust
Reported by
911 Call Center
Coordinates
34.050, -82.760

County comms reported numerous trees blown down between Elberton and Fortsonia.

Thunderstorm Wind, Elbert

When
July 31, 7:13 PM EST
Where
Elbert County, 4.73 mi SSW of Montevideo
Measured
50 kt (58 mph) estimated gust
Reported by
911 Call Center
Coordinates
34.210, -82.860

County comms reported a few trees blown down in the northern part of the county.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Georgia in 2024Every state in 2024This day in weather historyWarnings in Georgia, July 2024

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1205011, 1205012.