Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

July 22, 2018Johnson County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 22, 2018, 5:49 PM EDT for Johnson County, Georgia. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 22, 2018, 5:49 PM EDT (21:49 UTC)
Expired: Jul 22, 2018, 6:15 PM EDT
In force: 26 min
Issued by: NWS Atlanta, GA
Hail: 0.75 in
Wind: 50

County Johnson County, GA

The radar

The Robins AFB radar (KJGX), 42 km from the middle of the area, began a volume at 21:52 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 12:00Z, 9.8 hours before the alert went out and 166 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 317 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1140 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

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

NWS Atlanta, GA wrote its last area forecast discussion before this special weather statement went out at Jul 22, 2:43 PM EDT, 3 hours 6 minutes earlier.

Area forecast discussion, Jul 22, 2:43 PM EDT, 3 hours 6 minutes before

Area Forecast Discussion
National Weather Service Peachtree City GA
243 PM EDT Sun Jul 22 2018

.SHORT TERM /Tonight through Monday Night/...

A weak short wave rotating around the upper low to the north was
bringing showers and isolated thunderstorms to north GA this
afternoon. This area of precip will shift southward toward ATL/AHN
by 00Z, however the showers will dissipate by late this evening
except for the extreme north. Scattered tstorms across central
Georgia will shift southward as well, dissipating toward sunset.

Models in good agreement in bringing the upper low and associated
cold pool aloft over Georgia by Monday. This will bring an extensive
cloud shield to the CWA Monday and Monday Night. This will also
destabilize the atmosphere bringing numerous showers and isolated
thunderstorms to the forecast area. The thunderstorms will likely be
confined to the afternoon and evening hours. Due to the cloud
shield, max temps on Monday will be a few degrees below normal.

17

.LONG TERM /Tuesday through Sunday/...

A deep and nearly cut-off upper level trough will influence our
weather for the middle of the week until stronger westerlies,
digging down ahead of upstream trough, absorb and push it off the
east coast. As a result, POPs will be highest Tues/Wed before dryer
air trys to work in and limit convection back to more typical
isolated-widely scattered afternoon/evening activity. Temps will be
several degrees below normal Tues/Wed due to clouds and showers
associated with the upr trough. By the end of the week as this
feature moves away, temps should rebound back to near normal levels
for late July. No major changes with the extended forecast.

DJN.83

&&

AVIATION...
18Z Update...
VFR for the rest of this afternoon with scattered showers and
tstorms developing across the forecast area. Convection will
dissipate this evening. Cigs will become MVFR late tonight as the
upper low moves over the forecast area. Scattered to numerous
showers and isolated tsra will develop Monday morning and continue
into the afternoon. Cigs will become VFR all areas Monday
afternoon. Winds will remain west northwest this afternoon,
becoming light/calm tonight, then light northeast Monday morning.

//ATL Confidence...18Z Update...
Medium on timing of mvfr cigs late tonight.
High on remaining elements.

17

&&

.PRELIMINARY POINT TEMPS/POPS...
Athens          68  85  69  85 /  50  70  60  50
Atlanta         70  84  71  85 /  50  70  60  60
Blairsville     62  79  64  79 /  60  70  70  60
Cartersville    67  84  68  85 /  50  70  60  60
Columbus        72  87  72  88 /  30  60  60  50
Gainesville     67  83  69  83 /  50  70  60  50
Macon           70  88  71  88 /  30  60  60  60
Rome            68  84  68  86 /  60  70  60  60
Peachtree City  69  85  69  86 /  40  70  60  50
Vidalia         72  89  72  89 /  40  50  50  60

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...17
LONG TERM....DJN.83
AVIATION...17

Hazardous weather outlook, Jul 22, 2:50 PM EDT, 2 hours 59 minutes before

Hazardous Weather Outlook...Updated
National Weather Service Peachtree City GA
250 PM EDT Sun Jul 22 2018

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-231000-
Dade-Walker-Catoosa-Whitfield-Murray-Fannin-Gilmer-Union-Towns-
Chattooga-Gordon-Pickens-Dawson-Lumpkin-White-Floyd-Bartow-
Cherokee-Forsyth-Hall-Banks-Jackson-Madison-Polk-Paulding-Cobb-
North Fulton-Gwinnett-Barrow-Clarke-Oconee-Oglethorpe-Wilkes-
Haralson-Carroll-Douglas-South Fulton-DeKalb-Rockdale-Walton-
Newton-Morgan-Greene-Taliaferro-Heard-Coweta-Fayette-Clayton-
Spalding-Henry-Butts-Jasper-Putnam-Hancock-Warren-Troup-
Meriwether-Pike-Upson-Lamar-Monroe-Jones-Baldwin-Washington-
Glascock-Jefferson-Harris-Talbot-Taylor-Crawford-Bibb-Twiggs-
Wilkinson-Johnson-Emanuel-Muscogee-Chattahoochee-Marion-Schley-
Macon-Peach-Houston-Bleckley-Laurens-Treutlen-Stewart-Webster-
Sumter-Dooly-Crisp-Pulaski-Wilcox-Dodge-Telfair-Wheeler-
Montgomery-Toombs-
250 PM EDT Sun Jul 22 2018

This Hazardous Weather Outlook is for portions of North and
Central Georgia.

.DAY ONE...This afternoon through Tonight...

Isolated to scattered showers and thunderstorms will move across
north and central Georgia through early this evening. Main threats
will be small hail, locally heavy rain, brief gusty winds to 35 mph
and cloud to ground lightning. Isolated strong to severe storms are
possible but widespread severe weather is not anticipated through
tonight.

.DAYS TWO THROUGH SEVEN...Monday through Saturday...

Scattered to numerous thunderstorms can be expected Monday
through Saturday. A few storms could be strong to severe on any
day with the main hazards being strong gusty winds, frequent
lightning and minor flooding from heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected through tonight.

DJN

In the hours before

Special weather statement, Jul 22, 5:16 PM EDT, 33 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
516 PM EDT SUN JUL 22 2018

GAZ083-096-222145-
Bleckley GA-Twiggs GA-
516 PM EDT SUN JUL 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR BLECKLEY AND SOUTHEASTERN TWIGGS
COUNTIES UNTIL 545 PM EDT...

At 516 PM EDT...a strong thunderstorm was over Tarversville, or 10
miles northwest of Cochran...moving southeast at 20 mph.

  HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to
           ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Cochran, Royal, Coley Station, Tarversville, Goldsboro, Rebie, Cary,
Porter and Magnolia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3243 8349 3244 8349 3245 8350 3246 8349
      3248 8350 3249 8349 3250 8352 3251 8352
      3260 8348 3255 8320 3248 8317 3245 8317
      3237 8327 3235 8333
TIME...MOT...LOC 2116Z 292DEG 16KT 3252 8343

HAIL...0.25IN
WIND...40MPH

Special weather statement, Jul 22, 5:29 PM EDT, 20 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
529 PM EDT SUN JUL 22 2018

GAZ085-086-097-098-222215-
Emanuel GA-Treutlen GA-Johnson GA-Laurens GA-
529 PM EDT SUN JUL 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN EMANUEL...
TREUTLEN...SOUTHERN JOHNSON AND NORTHEASTERN LAURENS COUNTIES UNTIL
615 PM EDT...

At 529 PM EDT...a strong thunderstorm was over Scott, or 11 miles
east of Dublin...moving east at 20 mph.

  HAZARD...Frequent lightning and heavy rain.

  IMPACT...Lightning is one of nature's leading killers. If you can
           hear thunder...you are close enough to be struck by
           lightning. Heavy rain may cause temporary street flooding
           especially in poor drainage areas.

Some locations in the path of this storm include
Swainsboro, Soperton, East Dublin, Adrian, Oak Park, Nunez, Covena,
Orland, Rockledge, Orianna, Norristown, Minter, Norristown Junction,
Lexsy, Brewton, Blackville, Zaidee, Gillis Springs and Scott.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately.  Electrical
appliances should not be used unless in an emergency. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3235 8240 3235 8241 3234 8247 3246 8290
      3263 8282 3258 8234 3244 8227
TIME...MOT...LOC 2129Z 280DEG 17KT 3254 8271

Special weather statement, Jul 22, 5:35 PM EDT, 14 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
535 PM EDT SUN JUL 22 2018

GAZ086-222145-
Emanuel GA-
535 PM EDT SUN JUL 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN EMANUEL COUNTY UNTIL 545
PM EDT...

At 535 PM EDT...a strong thunderstorm was over Oak Park, or 11 miles
north of Lyons...moving southeast at 20 mph.

  HAZARD...40 to 50 mph wind...up to penny sized hail and frequent
           cloud to ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Oak Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3235 8225 3235 8224 3231 8224 3229 8228
      3229 8236 3232 8236 3234 8238 3234 8239
      3236 8241 3239 8240 3243 8238 3245 8240
      3246 8240 3242 8220
TIME...MOT...LOC 2135Z 292DEG 17KT 3236 8230

HAIL...0.75IN
WIND...50MPH

Special weather statement, Jul 22, 5:38 PM EDT, 11 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
538 PM EDT SUN JUL 22 2018

GAZ080-091-092-222215-
Schley GA-Taylor GA-Marion GA-
538 PM EDT SUN JUL 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR SCHLEY...SOUTHWESTERN TAYLOR AND
MARION COUNTIES UNTIL 615 PM EDT...

At 538 PM EDT...a strong thunderstorm was over Buena Vista...moving
east at 20 mph.

  HAZARD...40 to 50 mph wind...up to penny sized hail and frequent
           cloud to ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Buena Vista, Ellaville, Putnam, Brantley, Murrays Crossroads,
Tazewell, Doyle, Charing, Zellobee and Walls Crossing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3222 8461 3240 8463 3247 8433 3238 8425
      3230 8426 3230 8425 3220 8427
TIME...MOT...LOC 2138Z 263DEG 19KT 3232 8454

HAIL...0.75IN
WIND...50MPH

Special weather statement, Jul 22, 5:47 PM EDT, 2 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
547 PM EDT SUN JUL 22 2018

GAZ097-111-222215-
Wheeler GA-Laurens GA-
547 PM EDT SUN JUL 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN WHEELER AND SOUTHEASTERN
LAURENS COUNTIES UNTIL 615 PM EDT...

At 547 PM EDT...a strong thunderstorm was over Cedar Grove, or 7
miles northwest of Alamo...moving east at 15 mph.

  HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to
           ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Alamo, Glenwood, Landsburg and Cedar Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3218 8288 3218 8287 3220 8289 3219 8290
      3220 8292 3228 8288 3227 8264 3225 8265
      3223 8263 3218 8263 3216 8261 3215 8261
      3212 8263 3210 8276
TIME...MOT...LOC 2147Z 281DEG 14KT 3222 8288

HAIL...0.25IN
WIND...40MPH

Special weather statement, Jul 22, 5:49 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
549 PM EDT SUN JUL 22 2018

GAZ084-085-097-222215-
Wilkinson GA-Johnson GA-Laurens GA-
549 PM EDT SUN JUL 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN WILKINSON...
NORTHWESTERN JOHNSON AND NORTHERN LAURENS COUNTIES UNTIL 615 PM
EDT...

At 549 PM EDT...a strong thunderstorm was near Chappells Mill, or 12
miles north of Dublin...moving east at 15 mph.

  HAZARD...40 to 50 mph wind...up to penny sized hail and frequent
           cloud to ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Wrightsville, Chappells Mill, Lovett, Spann and Tuckers Crossroad.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3259 8284 3267 8308 3278 8305 3278 8296
      3276 8296 3277 8290 3277 8278 3267 8270
TIME...MOT...LOC 2149Z 281DEG 14KT 3270 8298

HAIL...0.75IN
WIND...50MPH

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 21, 8:03 PM EDT	Special Weather Statement	FFC	Morgan	27 min
Jul 21, 8:04 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Gwinnett	26 min
Jul 21, 8:22 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Clarke, Jackson, Oconee, Walton	23 min
Jul 21, 8:25 PM EDT	Special Weather Statement	FFC	White	35 min
Jul 21, 8:31 PM EDT	Special Weather Statement	FFC	Bartow, Paulding	44 min
Jul 21, 8:34 PM EDT	Special Weather Statement	FFC	Gilmer	26 min
Jul 21, 8:35 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Cobb, Paulding	22 min
Jul 21, 8:42 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Clarke, Jackson, Madison, Oconee, Oglethorpe	33 min
Jul 21, 8:49 PM EDT	Special Weather Statement	FFC	Stewart	11 min
Jul 21, 8:51 PM EDT	Special Weather Statement	FFC	Cherokee, Forsyth	24 min
Jul 21, 8:54 PM EDT	Special Weather Statement	FFC	Morgan, Walton	36 min
Jul 21, 9:01 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee, Forsyth, Fulton, Gwinnett, Hall	44 min
Jul 21, 9:11 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe	34 min
Jul 21, 10:25 PM EDT	Special Weather Statement	FFC	Banks	35 min
Jul 21, 11:13 PM EDT	Special Weather Statement	FFC	Wilkes	32 min
Jul 21, 11:16 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe, Wilkes	29 min
Jul 21, 11:33 PM EDT	Special Weather Statement	FFC	Upson	27 min
Jul 21, 11:44 PM EDT	Special Weather Statement	FFC	Wilkes	16 min
Jul 22, 12:43 AM EDT	Special Weather Statement	FFC	McDuffie	17 min
Jul 22, 12:47 AM EDT	Special Weather Statement	FFC	Upson	28 min
Jul 22, 1:11 AM EDT	Special Weather Statement	FFC	Crawford	34 min
Jul 22, 1:21 AM EDT	Severe Thunderstorm Warning	FFC	Bibb, Crawford, Houston, Peach, Twiggs	24 min
Jul 22, 1:46 AM EDT	Special Weather Statement	FFC	Bibb, Twiggs	29 min
Jul 22, 2:01 AM EDT	Special Weather Statement	FFC	Peach	29 min
Jul 22, 4:16 AM EDT	River Flood Warning	FFC	Murray, Whitfield	21 hr
Jul 22, 1:49 PM EDT	Special Weather Statement	FFC	Talbot	26 min
Jul 22, 4:19 PM EDT	Special Weather Statement	FFC	Marion, Schley	26 min
Jul 22, 4:24 PM EDT	Special Weather Statement	FFC	Treutlen	36 min
Jul 22, 4:34 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Laurens, Twiggs, Wilkinson	41 min
Jul 22, 4:56 PM EDT	Special Weather Statement	FFC	Pickens	34 min
Jul 22, 5:01 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Telfair, Wheeler	44 min
Jul 22, 5:10 PM EDT	Special Weather Statement	FFC	Wilcox	35 min
Jul 22, 5:16 PM EDT	Special Weather Statement	FFC	Bleckley	29 min
Jul 22, 5:19 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Pulaski, Wilcox	41 min
Jul 22, 5:29 PM EDT	Special Weather Statement	FFC	Treutlen	46 min
Jul 22, 5:35 PM EDT	Special Weather Statement	FFC	Candler	10 min
Jul 22, 5:38 PM EDT	Special Weather Statement	FFC	Marion, Schley	37 min
Jul 22, 5:39 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel	21 min
Jul 22, 5:45 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Pulaski	28 min
Jul 22, 5:47 PM EDT	Special Weather Statement	FFC	Wheeler	28 min
Jul 22, 5:55 PM EDT	Special Weather Statement	FFC	Wilkinson	35 min
Jul 22, 5:57 PM EDT	Special Weather Statement	FFC	Bartow	33 min
Jul 22, 6:04 PM EDT	Special Weather Statement	FFC	Hall	26 min
Jul 22, 6:07 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Houston, Pulaski, Twiggs	38 min
Jul 22, 6:16 PM EDT	Special Weather Statement	FFC	Marion	29 min
Jul 22, 6:19 PM EDT	Special Weather Statement	FFC	Wilkinson	26 min
Jul 22, 6:31 PM EDT	Special Weather Statement	FFC	Washington	29 min
Jul 22, 6:33 PM EDT	Special Weather Statement	FFC	Crisp, Wilcox	27 min
Jul 22, 6:35 PM EDT	Special Weather Statement	FFC	Barrow	25 min
Jul 22, 6:45 PM EDT	Special Weather Statement	FFC	Banks	30 min
Jul 22, 6:47 PM EDT	Severe Thunderstorm Warning	FFC	Jefferson, Washington	43 min
Jul 22, 6:50 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Gwinnett, Jackson	28 min
Jul 22, 7:01 PM EDT	Special Weather Statement	FFC	Wilcox	29 min
Jul 22, 7:07 PM EDT	Special Weather Statement	FFC	Marion	38 min
Jul 22, 7:15 PM EDT	Severe Thunderstorm Warning	FFC	Wilcox	17 min
Jul 22, 7:20 PM EDT	Special Weather Statement	FFC	Madison	25 min
Jul 22, 7:40 PM EDT	Special Weather Statement	FFC	Clarke, Oglethorpe	35 min
Jul 22, 7:49 PM EDT	Severe Thunderstorm Warning	FFC	Clarke, Jackson, Madison, Oconee, Oglethorpe	41 min

Nearby

Special Weather Statements in Georgia, 2018 Every special weather statement in 2018

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.