Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 23, 2012York County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 23, 2012, 5:29 PM EDT for York County, South Carolina. It was in force for 31 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 23, 2012, 5:29 PM EDT (21:29 UTC)
Expired: Jul 23, 2012, 6:00 PM EDT
In force: 31 min
Issued by: NWS Greenville-Spartanburg, SC

County York County, SC

The radar

The Columbia radar (KCAE), 110 km from the middle of the area, began a volume at 21:30 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.5 hours before the alert went out and 159 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: 2136 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 910 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 68 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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this special weather statement went out at Jul 23, 4:56 PM EDT, 33 minutes earlier.

Area forecast discussion, Jul 23, 4:56 PM EDT, 33 minutes before

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Hazardous weather outlook, Jul 23, 5:14 PM EDT, 15 minutes before

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In the hours before

Special weather statement, Jul 23, 3:52 PM EDT, 1 hour 37 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
352 PM EDT MON JUL 23 2012

NCZ065-232015-
HENDERSON-
352 PM EDT MON JUL 23 2012

...A STRONG THUNDERSTORM WILL AFFECT SOUTHERN HENDERSON COUNTY
THROUGH 415 PM EDT...

AT 347 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES SOUTHEAST OF ETOWAH...OR 6 MILES
SOUTHWEST OF HENDERSONVILLE...MOVING SOUTHEAST AT 10 MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  FLAT ROCK...

FREQUENT LIGHTNING...SMALL HAIL...AND WIND GUSTS OF 40 TO 50 MPH ARE
EXPECTED WITH THIS STORM.

LAT...LON 3527 8235 3518 8236 3519 8238 3521 8239
      3516 8245 3516 8246 3518 8246 3516 8253
      3523 8258 3530 8255

LANE

Special weather statement, Jul 23, 4:09 PM EDT, 1 hour 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
409 PM EDT MON JUL 23 2012

NCZ508-510-232045-
EASTERN POLK-GREATER RUTHERFORD-
409 PM EDT MON JUL 23 2012

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL RUTHERFORD AND
NORTHEASTERN POLK COUNTIES THROUGH 445 PM EDT...

AT 404 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 6 MILES WEST OF RUTHERFORDTON...MOVING EAST AT 20
MPH.

THIS STORM WILL IMPACT LOCATIONS NEAR...
  RUTHERFORDTON...
  SPINDALE...
  FOREST CITY...

FREQUENT LIGHTNING AND WIND GUSTS OF 40 TO 50 MPH ARE EXPECTED WITH
THIS STORM.

LAT...LON 3543 8184 3522 8187 3532 8214 3542 8212

LANE

Special weather statement, Jul 23, 4:19 PM EDT, 1 hour 10 minutes before

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Local storm report, Jul 23, 4:52 PM EDT, 37 minutes before

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Special weather statement, Jul 23, 5:07 PM EDT, 22 minutes before

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Special weather statement, Jul 23, 5:29 PM EDT, 0 minutes before

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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 23, 1:15 PM EDT	Special Weather Statement	GSP	Henderson	45 min
Jul 23, 2:08 PM EDT	Severe Thunderstorm Warning	GSP	Polk, Rutherford	67 min
Jul 23, 2:52 PM EDT	Special Weather Statement	GSP	Henderson	23 min
Jul 23, 2:59 PM EDT	Special Weather Statement	GSP	Burke	31 min
Jul 23, 3:06 PM EDT	Special Weather Statement	GSP	Iredell	24 min
Jul 23, 3:14 PM EDT	Special Weather Statement	GSP	Henderson	31 min
Jul 23, 3:40 PM EDT	Special Weather Statement	GSP	Burke	35 min
Jul 23, 3:42 PM EDT	Special Weather Statement	GSP	Polk	33 min
Jul 23, 3:45 PM EDT	Severe Thunderstorm Warning	GSP	Burke	50 min
Jul 23, 3:52 PM EDT	Special Weather Statement	GSP	Henderson	23 min
Jul 23, 4:09 PM EDT	Special Weather Statement	GSP	Rutherford	36 min
Jul 23, 4:16 PM EDT	Severe Thunderstorm Warning	GSP	Rutherford	35 min
Jul 23, 4:19 PM EDT	Special Weather Statement	GSP	Rowan	26 min
Jul 23, 6:19 PM EDT	Special Weather Statement	GSP	Union	26 min
Jul 23, 4:01 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	59 min
Jul 23, 5:07 PM EDT	Special Weather Statement	GSP	Spartanburg	38 min

Nearby

Special Weather Statements in South Carolina, 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.