Alert archive / South Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Columbia, SC

January 22, 2017Aiken County, South Carolina

NWS Columbia, SC issued this special weather statement at Jan 22, 2017, 2:19 PM EST for Aiken County, South Carolina. It was in force for 41 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
Jan 22, 2017, 2:19 PM EST (19:19 UTC)
Expired
Jan 22, 2017, 3:00 PM EST
In force
41 min
Issued by
NWS Columbia, SC

County Aiken County, SC

The radar

The Columbia radar (KCAE), 47 km from the middle of the area, began a volume at 19:19 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, 7.3 hours before the alert went out and 148 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-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2017-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2017-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 253 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
762 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
253 m²/s²
0-3 km storm-relative helicity
438 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Columbia, SC wrote its last area forecast discussion before this special weather statement went out at Jan 22, 1:29 PM EST, 50 minutes earlier.

Area forecast discussion, Jan 22, 1:29 PM EST, 50 minutes before
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Hazardous weather outlook, Jan 22, 4:52 AM EST, 9 hours 27 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
452 AM EST SUN JAN 22 2017

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-231000-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
452 AM EST SUN JAN 22 2017

...LAKE WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM EST
MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA
AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA.

.DAY ONE...TODAY AND TONIGHT.

NUMEROUS SHOWERS AND THUNDERSTORMS WILL OCCUR...ESPECIALLY EARLY
THIS MORNING AND ALSO THIS AFTERNOON AND EVENING. SOME OF THE
THUNDERSTORMS MAY BECOME SEVERE. THE MAIN THREAT WILL BE DAMAGING
WIND WITH TORNADOES POSSIBLE. LARGE HAIL MAY ALSO OCCUR. HEAVY RAIN
WITH SOME OF THE SHOWERS MAY LEAD TO LOCALIZED FLOODING.

ALSO...PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON
THE INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARD.

   LAKE WIND ADVISORY.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   LAKE WIND ADVISORY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARD.

   LAKE WIND ADVISORY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE REQUIRED THIS AFTERNOON.

In the hours before

Special weather statement, Jan 22, 1:13 PM EST, 1 hour 6 minutes before
Special Weather Statement
National Weather Service Columbia SC
113 PM EST SUN JAN 22 2017

GAZ063>065-077-SCZ030-035-221845-
Burke-Richmond-McDuffie-Columbia-Barnwell-Aiken-
113 PM EST SUN JAN 22 2017

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT MCDUFFIE...SOUTHWESTERN
COLUMBIA...BURKE...SOUTHERN RICHMOND...SOUTHWESTERN BARNWELL AND
SOUTHWESTERN AIKEN COUNTIES...

At 111 PM EST, radar indicated a line of strong thunderstorms were
approaching the CSRA from central Georgia. The line will move into
the CSRA shortly. Movement was northeast at 40 mph.

Winds in excess of 40 mph and pea size hail are possible with these
storms. The storms may intensify.

Locations impacted include...
Thomson, Waynesboro, Hephzibah, Harlem, Sardis, Midville, Blythe,
Dearing, Keysville, Girard, Vidette and Colemans Lake.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3283 8231 3293 8227 3308 8229 3323 8223
      3331 8234 3336 8255 3341 8255 3358 8264
      3327 8182 3303 8157 3291 8176 3295 8186
      3292 8196 3292 8208 3288 8213 3281 8215
      3280 8221
TIME...MOT...LOC 1811Z 224DEG 50KT 3313 8302 3286 8232 3232 8177

awp
Special weather statement, Jan 22, 2:19 PM EST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 22, 3:26 AM ESTLake Wind AdvisoryCAEAiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more43 hr
Jan 22, 10:15 AM ESTRiver Flood WarningCAEOrangeburg3 days
Jan 22, 1:13 PM ESTSpecial Weather StatementCAEBurke, McDuffie, Richmond32 min

Nearby

Special Weather Statements in South Carolina, 2017Every 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.