Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 25, 20124 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 25, 2012, 4:13 AM EDT for 4 counties in North Carolina. It was in force for 47 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 25, 2012, 4:13 AM EDT (08:13 UTC)
Expired
Jul 25, 2012, 5:00 AM EDT
In force
47 min
Issued by
NWS Greenville-Spartanburg, SC

Counties Avery County, NC, Madison County, NC, Mitchell County, NC, Yancey County, NC

The radar

The Knoxville radar (KMRX), 103 km from the middle of the area, began a volume at 08:17 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 00:00Z, 8.2 hours before the alert went out and 212 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, Greensboro/Hi Pt, NC at 00:00Z on 2012-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 joules per kilogram.LCLLFCEL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2012-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 square meters per square second.19395878Sfc1 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
44 J/kg
Mixed-layer CIN
-486 J/kg
Mixed-layer LCL
1440 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
217 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 25, 2:48 AM EDT, 1 hour 25 minutes earlier.

Area forecast discussion, Jul 25, 2:48 AM EDT, 1 hour 25 minutes before
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Hazardous weather outlook, Jul 24, 10:39 PM EDT, 5 hours 34 minutes before
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In the hours before

Special weather statement, Jul 25, 2:58 AM EDT, 1 hour 15 minutes before
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Special weather statement, Jul 25, 4:13 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 2:58 AM EDTSpecial Weather StatementGSPAvery, Caldwell, Mitchell47 min
Jul 25, 4:56 AM EDTSpecial Weather StatementGSPBurke, McDowell, Madison, Mitchell, Yancey49 min
Jul 25, 5:38 AM EDTSpecial Weather StatementGSPMcDowell52 min
Jul 25, 5:45 AM EDTSpecial Weather StatementGSPBuncombe45 min
Jul 25, 6:13 AM EDTSpecial Weather StatementGSPCleveland47 min
Jul 25, 6:44 AM EDTSpecial Weather StatementGSPAvery, Burke, Madison, Mitchell, Yancey61 min
Jul 25, 7:15 AM EDTSpecial Weather StatementGSPBuncombe, Henderson, McDowell, Polk, Rutherford, Transylvania60 min
Jul 25, 8:02 AM EDTAreal Flood AdvisoryGSPMadison, Yancey118 min
Jul 25, 8:08 AM EDTAreal Flood AdvisoryGSPMadison, Yancey112 min
Jul 25, 2:18 PM EDTHeat AdvisoryGSPCabarrus, Mecklenburg, Union29 hr
Jul 25, 3:28 PM EDTSpecial Weather StatementGSPBurke47 min
Jul 25, 3:39 PM EDTSevere Thunderstorm WarningGSPBurke, Catawba66 min
Jul 25, 3:40 PM EDTSpecial Weather StatementGSPCaldwell50 min
Jul 25, 3:41 PM EDTSpecial Weather StatementGSPCatawba49 min
Jul 25, 3:59 PM EDTSevere Thunderstorm WarningGSPCatawba, Iredell, Lincoln, Mecklenburg61 min
Jul 25, 4:31 PM EDTSevere Thunderstorm WarningGSPCabarrus, Iredell, Mecklenburg, Rowan59 min
Jul 25, 4:40 PM EDTSevere Thunderstorm WarningGSPDavie, Iredell65 min
Jul 25, 5:03 PM EDTSpecial Weather StatementGSPMcDowell42 min
Jul 25, 5:20 PM EDTSpecial Weather StatementGSPIredell25 min
Jul 25, 5:34 PM EDTSevere Thunderstorm WarningGSPAlexander, Catawba, Iredell42 min
Jul 25, 5:40 PM EDTSpecial Weather StatementGSPHenderson50 min
Jul 25, 6:59 PM EDTSpecial Weather StatementGSPHenderson, Polk46 min

Nearby

Special Weather Statements in North Carolina, 2012Every 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.