Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Charleston, SC

April 5, 2017Long County, Georgia

NWS Charleston, SC issued this special weather statement at Apr 5, 2017, 8:12 PM EDT for Long County, Georgia. It was in force for 33 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: Apr 5, 2017, 8:12 PM EDT (00:12 UTC)
Expired: Apr 5, 2017, 8:45 PM EDT
In force: 33 min
Issued by: NWS Charleston, SC

County Long County, GA

The radar

The Charleston,SC radar (KCLX), 122 km from the middle of the area, began a volume at 00:11 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

Jacksonville, FL (KJAX), launched 00:00Z, 0.2 hours before the alert went out and 141 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: 1177 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 1408 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 122 m²/s²
0-3 km storm-relative helicity: 132 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.8

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 Apr 5, 8:08 PM EDT, 4 minutes earlier.

Area forecast discussion, Apr 5, 8:08 PM EDT, 4 minutes before

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Hazardous weather outlook, Apr 5, 7:59 PM EDT, 13 minutes before

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In the hours before

Special weather statement, Apr 5, 7:51 PM EDT, 21 minutes before

Special Weather Statement
National Weather Service Charleston SC
751 PM EDT WED APR 5 2017

SCZ045-050-052-060030-
Inland Berkeley-Tidal Berkeley-Charleston-
751 PM EDT WED APR 5 2017

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF CHARLESTON AND
BERKELEY COUNTIES...

At 751 PM EDT, National Weather Service doppler radar indicated a
strong thunderstorm near Shadowmoss, or near Magnolia Gardens, moving
east at 30 mph.

  HAZARD...strong winds 45 to 55 mph, up to penny sized hail and
           excessive cloud to ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light, unsecured objects. Minor hail damage to plants,
           trees and crops is possible. Damage to windshields is
           unlikely. All outdoor activities should cease. Move
           indoors immediately.

Some locations in the path of this storm include...
Charleston, North Charleston, Mount Pleasant, Goose Creek, Hanahan,
Downtown Charleston, Fort Sumter and Naval Weapons Station
Charleston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch is in effect. Thunderstorms can produce tornadoes
suddenly, sometimes with little or no warning. Be alert for rapidly
changing weather conditions and be ready to act quickly if severe
weather is observed or a warning is issued.

Report damage directly to the Charleston National Weather Service at
1-888-383-2024 when it is safe to do so. You can also email your
report to nws.charlestonsc@noaa.gov.

&&

LAT...LON 3274 7983 3267 7986 3261 7995 3253 8028
      3258 8026 3267 8015 3269 7991 3280 7999
      3296 8005 3311 7962 3287 7957
TIME...MOT...LOC 2351Z 258DEG 28KT 3280 8009

Local storm report, Apr 5, 7:59 PM EDT, 13 minutes before

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Local storm report, Apr 5, 8:02 PM EDT, 10 minutes before

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Local storm report, Apr 5, 8:05 PM EDT, 7 minutes before

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Local storm report, Apr 5, 8:06 PM EDT, 6 minutes before

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Special weather statement, Apr 5, 8:12 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 8:42 PM EDT	Special Marine Warning	CHS		2 hr
Apr 5, 9:13 PM EDT	Areal Flood Advisory	CHS	Charleston	2 hr
Apr 5, 9:26 PM EDT	Special Marine Warning	CHS		94 min
Apr 5, 9:40 PM EDT	Special Marine Warning	CHS		2 hr
Apr 5, 11:05 PM EDT	Special Marine Warning	CHS		115 min
Apr 6, 12:46 AM EDT	Special Weather Statement	CHS	Allendale	29 min
Apr 6, 1:00 AM EDT	Special Marine Warning	CHS		2 hr
Apr 6, 1:12 AM EDT	Special Marine Warning	CHS		2 hr
Apr 6, 2:46 AM EDT	Special Marine Warning	CHS		119 min
Apr 6, 3:10 AM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston, Dorchester	2 hr
Apr 6, 3:15 AM EDT	Special Marine Warning	CHS		2 hr
Apr 6, 4:33 AM EDT	Special Weather Statement	CHS	Berkeley	42 min
Apr 6, 7:18 PM EDT	Lake Wind Advisory	CHS	Berkeley	27 hr
Apr 6, 7:20 PM EDT	Small Craft Advisory	CHS		32 hr
Apr 5, 9:36 PM EDT	Special Weather Statement	CHS	Liberty, Long	39 min
Apr 5, 9:45 PM EDT	Special Weather Statement	CHS	Evans, Tattnall	45 min
Apr 5, 10:12 PM EDT	Severe Thunderstorm Warning	CHS	Liberty, Long, McIntosh	48 min
Apr 5, 10:25 PM EDT	Tornado Warning	CHS	Liberty, Long, McIntosh	50 min
Apr 5, 10:48 PM EDT	Tornado Warning Tornado observed	CHS	Bryan, Chatham, Liberty, McIntosh	42 min
Apr 5, 11:14 PM EDT	Severe Thunderstorm Warning	CHS	Liberty, Long, McIntosh	46 min
Apr 5, 11:27 PM EDT	Tornado Warning	CHS	Bryan, Chatham, Liberty, McIntosh	33 min
Apr 5, 11:33 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham, Liberty, McIntosh	31 min
Apr 6, 12:16 AM EDT	Special Weather Statement	CHS	McIntosh	44 min
Apr 6, 12:54 AM EDT	Special Weather Statement	CHS	McIntosh	36 min
Apr 6, 1:36 AM EDT	Special Weather Statement	CHS	McIntosh	39 min
Apr 6, 2:58 AM EDT	Special Weather Statement	CHS	McIntosh	32 min

Nearby

Special Weather Statements in Georgia, 2017 Every special weather statement 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.