Alert archive / North Carolina / Special Weather Statements in 2019

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 20, 2019Madison County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 20, 2019, 4:02 PM EDT for Madison County, North Carolina. It was in force for 28 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: Aug 20, 2019, 4:02 PM EDT (20:02 UTC)
Expired: Aug 20, 2019, 4:30 PM EDT
In force: 28 min
Issued by: NWS Greenville-Spartanburg, SC

County Madison County, NC

The radar

The Knoxville radar (KMRX), 65 km from the middle of the area, began a volume at 20:01 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

Roanoke, VA (KRNK), launched 12:00Z, 8.0 hours before the alert went out and 320 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: 772 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 1189 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -10 m²/s²
0-3 km storm-relative helicity: -10 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 Greenville-Spartanburg, SC wrote its last area forecast discussion before this special weather statement went out at Aug 20, 3:02 PM EDT, 1 hour earlier.

Area forecast discussion, Aug 20, 3:02 PM EDT, 1 hour before

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Hazardous weather outlook, Aug 20, 4:40 AM EDT, 11 hours 22 minutes before

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In the hours before

Special weather statement, Aug 20, 2:58 PM EDT, 1 hour 4 minutes before

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Special weather statement, Aug 20, 3:01 PM EDT, 1 hour 1 minute before

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Special weather statement, Aug 20, 3:27 PM EDT, 35 minutes before

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Special weather statement, Aug 20, 3:29 PM EDT, 33 minutes before

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Special weather statement, Aug 20, 3:30 PM EDT, 32 minutes before

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Special weather statement, Aug 20, 4:02 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
Aug 20, 1:40 PM EDT	Special Weather Statement	GSP	Buncombe	35 min
Aug 20, 2:58 PM EDT	Special Weather Statement	GSP	Mitchell, Yancey	32 min
Aug 20, 3:27 PM EDT	Special Weather Statement	GSP	Union	33 min
Aug 20, 6:02 PM EDT	Special Weather Statement	GSP	Clay	28 min
Aug 20, 6:45 PM EDT	Special Weather Statement	GSP	Mecklenburg	30 min
Aug 19, 8:06 PM EDT	Special Weather Statement	GSP	Newberry	24 min
Aug 20, 2:16 PM EDT	Special Weather Statement	GSP	Union	29 min
Aug 20, 2:46 PM EDT	Special Weather Statement	GSP	Cherokee	29 min
Aug 20, 3:01 PM EDT	Special Weather Statement	GSP	Greenwood	29 min
Aug 20, 3:29 PM EDT	Special Weather Statement	GSP	York	31 min
Aug 20, 3:30 PM EDT	Special Weather Statement	GSP	Chester	30 min

Nearby

Special Weather Statements in North Carolina, 2019 Every special weather statement in 2019

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.