Alert archive / Georgia / Special Weather Statements in 2019

Special Weather Statement, NWS Charleston, SC

August 4, 2019Chatham County, Liberty County, Georgia

NWS Charleston, SC issued this special weather statement at Aug 4, 2019, 3:25 PM EDT for Chatham County, Liberty County, Georgia. It was in force for 50 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: Aug 4, 2019, 3:25 PM EDT (19:25 UTC)
Expired: Aug 4, 2019, 4:15 PM EDT
In force: 50 min
Issued by: NWS Charleston, SC

Counties Chatham County, GA, Liberty County, GA

The radar

The Charleston,SC radar (KCLX), 80 km from the middle of the area, began a volume at 19:26 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

Charleston AFB, SC (KCHS), launched 12:00Z, 7.4 hours before the alert went out and 147 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: 561 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 816 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.5

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 Charleston, SC wrote its last area forecast discussion before this special weather statement went out at Aug 4, 1:56 PM EDT, 1 hour 29 minutes earlier.

Area forecast discussion, Aug 4, 1:56 PM EDT, 1 hour 29 minutes before

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Hazardous weather outlook, Aug 4, 11:18 AM EDT, 4 hours 7 minutes before

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In the hours before

Local storm report, Aug 4, 12:18 PM EDT, 3 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
1218 PM EDT SUN AUG 04 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1100 AM     RIP CURRENTS     1 SSE TYBEE ISLAND      31.99N  80.85W
08/04/2019                   AMZ354             GA   LIFE GUARD

            MULTIPLE, MODERATE RIP CURRENTS SEEN BY THE LIFEGUARDS
            NEAR THE TYBEE PIER. 22 RESCUES HAD OCCURRED FROM 11:00
            AM UNTIL 12:05 PM.

&&

EVENT NUMBER CHS1900862

RAD

Special weather statement, Aug 4, 1:53 PM EDT, 1 hour 32 minutes before

Special Weather Statement
National Weather Service Charleston SC
153 PM EDT Sun Aug 4 2019

GAZ100-101-116-SCZ047-041845-
Bulloch-Effingham-Inland Bryan-Inland Jasper-
153 PM EDT Sun Aug 4 2019

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BRYAN...BULLOCH...
EFFINGHAM AND JASPER COUNTIES...

At 153 PM EDT, National Weather Service doppler radar indicated
strong thunderstorms along a line extending from near Egypt to
Blitchton, and moving east at 25 mph.

  HAZARD...strong winds 35 to 45 mph and excessive cloud to ground
           lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light, unsecured objects. All outdoor activities should
           cease. Move indoors immediately.

Some locations in the path of these storms include...
Springfield, Rincon, Guyton, Ebenezer, Egypt, Marlow, Shawnee and
Eden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms and may lead
to flooding of low lying and poor drainage areas. Do not drive your
vehicle through flooded roadways.

Excessive cloud to ground lightning is occurring with these storms.
Lightning can strike 15 miles away from a thunderstorm. Seek safe
shelter inside a building or vehicle.

&&

LAT...LON 3249 8153 3256 8133 3256 8130 3255 8129
      3256 8129 3255 8128 3260 8123 3265 8109
      3228 8112 3209 8150
TIME...MOT...LOC 1753Z 253DEG 20KT 3248 8145 3219 8146

Special weather statement, Aug 4, 3:25 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Charleston SC
325 PM EDT Sun Aug 4 2019

GAZ116>119-137>141-SCZ051-042015-
Inland McIntosh-Coastal Liberty-Inland Liberty-Coastal Chatham-Inland
Chatham-Inland Bryan-Coastal McIntosh-Coastal Bryan-Long-Coastal
Jasper-
325 PM EDT Sun Aug 4 2019

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BRYAN...LIBERTY...
MCINTOSH...CHATHAM...LONG AND JASPER COUNTIES...

At 325 PM EDT, National Weather Service doppler radar indicated
strong thunderstorms along a line extending from near McIntosh to
near Halfmoon Landing, and moving northeast at 15 mph.

  HAZARD...strong winds 30 to 40 mph and excessive cloud to ground
           lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light, unsecured objects. All outdoor activities should
           cease. Move indoors immediately.

Some locations in the path of these storms include...
Savannah, Richmond Hill, Wilmington Island, Fort Pulaski National
Monument, McIntosh, Montgomery, Garden City and Walthourville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms and may lead
to flooding of low lying and poor drainage areas. Do not drive your
vehicle through flooded roadways.

Excessive cloud to ground lightning is occurring with these storms.
Lightning can strike 15 miles away from a thunderstorm. Seek safe
shelter inside a building or vehicle.

&&

LAT...LON 3175 8163 3212 8112 3208 8104 3210 8100
      3204 8093 3204 8092 3206 8092 3204 8089
      3201 8081 3198 8082 3171 8110 3149 8117
TIME...MOT...LOC 1925Z 234DEG 13KT 3180 8148 3168 8134

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 4, 3:26 PM EDT	Special Marine Warning	CHS		94 min
Aug 4, 3:30 PM EDT	Coastal Flood Advisory	CHS		9 hr
Aug 4, 5:34 PM EDT	Special Marine Warning	CHS		116 min
Aug 4, 7:26 PM EDT	Special Marine Warning	CHS		94 min
Aug 4, 12:42 PM EDT	Areal Flood Advisory	CHS	Bulloch, Screven	93 min
Aug 4, 1:53 PM EDT	Special Weather Statement	CHS	Effingham	52 min
Aug 4, 5:34 PM EDT	Special Weather Statement	CHS	McIntosh	26 min
Aug 4, 5:54 PM EDT	Severe Thunderstorm Warning	CHS	McIntosh	36 min

Nearby

Special Weather Statements in Georgia, 2019 Every special weather statement in 2019

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.