Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Charleston, SC

May 22, 2012Screven County, Georgia

NWS Charleston, SC issued this special weather statement at May 22, 2012, 4:26 PM EDT for Screven County, Georgia. It was in force for 34 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: May 22, 2012, 4:26 PM EDT (20:26 UTC)
Expired: May 22, 2012, 5:00 PM EDT
In force: 34 min
Issued by: NWS Charleston, SC

County Screven County, GA

The radar

The Charleston,SC radar (KCLX), 53 km from the middle of the area, began a volume at 20:28 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, 8.4 hours before the alert went out and 154 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: 831 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1209 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 May 22, 4:22 PM EDT, 4 minutes earlier.

Area forecast discussion, May 22, 4:22 PM EDT, 4 minutes before

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Hazardous weather outlook, May 22, 3:57 PM EDT, 29 minutes before

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In the hours before

Special weather statement, May 22, 2:57 PM EDT, 1 hour 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON SC
257 PM EDT TUE MAY 22 2012

SCZ045-221930-
INLAND BERKELEY-
257 PM EDT TUE MAY 22 2012

...STRONG THUNDERSTORMS WILL IMPACT PORTIONS OF BERKELEY COUNTY
THROUGH 330 PM EDT...

AT 255 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM...NEAR FAREWELL CORNER...MOVING NORTHEAST AT 10
MPH.

SOME LOCATIONS THAT WILL BE AFFECTED INCLUDE...
JAMESTOWN...

PREPARE NOW FOR THE FOLLOWING HAZARDS...
GUSTY WINDS OF 40 TO 50 MPH...
PENNY SIZE HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
BE READY TO TAKE IMMEDIATE ACTION IN CASE A SEVERE THUNDERSTORM
WARNING IS ISSUED FOR YOUR LOCATION.

&&

LAT...LON 3323 7945 3308 7974 3325 7989 3335 7977
      3332 7974 3332 7970 3330 7967 3328 7957
      3324 7950 3324 7948
TIME...MOT...LOC 1857Z 235DEG 10KT 3323 7974

Special weather statement, May 22, 3:34 PM EDT, 52 minutes before

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Local storm report, May 22, 3:40 PM EDT, 46 minutes before

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Local storm report, May 22, 4:08 PM EDT, 18 minutes before

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Special weather statement, May 22, 4:23 PM EDT, 3 minutes before

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Special weather statement, May 22, 4:26 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
May 22, 3:05 PM EDT	Severe Thunderstorm Warning	CHS	Evans, Tattnall	55 min
May 22, 3:51 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Evans, Liberty, Tattnall	36 min
May 22, 4:23 PM EDT	Special Weather Statement	CHS	Long	37 min
May 22, 4:34 PM EDT	Severe Thunderstorm Warning	CHS	Bulloch, Effingham, Screven	40 min
May 22, 5:12 PM EDT	Special Weather Statement	CHS	Chatham	33 min
May 22, 5:28 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Chatham	45 min
May 22, 5:31 PM EDT	Special Marine Warning	CHS		89 min
May 22, 2:57 PM EDT	Special Weather Statement	CHS	Berkeley	33 min
May 22, 3:34 PM EDT	Special Weather Statement	CHS	Berkeley	26 min
May 22, 3:44 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston	61 min
May 22, 5:06 PM EDT	Special Weather Statement	CHS	Hampton	24 min
May 22, 5:14 PM EDT	Special Weather Statement	CHS	Charleston	31 min
May 22, 5:19 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Dorchester	56 min
May 22, 6:16 PM EDT	Special Weather Statement	CHS	Berkeley	59 min
May 22, 6:21 PM EDT	Special Weather Statement	CHS	Colleton	24 min
May 22, 6:33 PM EDT	Severe Thunderstorm Warning	CHS	Beaufort, Charleston, Colleton, Dorchester	57 min
May 22, 6:51 PM EDT	Special Weather Statement	CHS	Berkeley	54 min
May 22, 7:00 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Dorchester	60 min
May 22, 7:20 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston, Dorchester	55 min

Nearby

Special Weather Statements in Georgia, 2012 Every special weather statement in 2012

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.