Alert archive / North Carolina / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 382, NWS Greenville-Spartanburg, SC

September 9, 2009Haywood County, Jackson County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 9, 2009, 2:26 PM EDT for Haywood County, Jackson County, North Carolina. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 9, 2009, 2:26 PM EDT (18:26 UTC)
Expired: Sep 9, 2009, 3:16 PM EDT
In force: 50 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon

Counties Haywood County, NC, Jackson County, NC

The radar

The Knoxville radar (KMRX), 89 km from the middle of the area, began a volume at 18:25 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.4 hours before the alert went out and 264 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: 591 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1104 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 28 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Sep 9, 1:18 PM EDT, 1 hour 8 minutes earlier.

Area forecast discussion, Sep 9, 1:18 PM EDT, 1 hour 8 minutes before

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Hazardous weather outlook, Sep 9, 6:10 AM EDT, 8 hours 16 minutes before

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In the hours before

Special weather statement, Sep 9, 12:11 PM EDT, 2 hours 15 minutes before

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Local storm report, Sep 9, 12:36 PM EDT, 1 hour 50 minutes before

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Local storm report, Sep 9, 12:57 PM EDT, 1 hour 29 minutes before

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Special weather statement, Sep 9, 12:58 PM EDT, 1 hour 28 minutes before

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Special weather statement, Sep 9, 1:37 PM EDT, 49 minutes before

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Special weather statement, Sep 9, 1:59 PM EDT, 27 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
Sep 9, 1:02 AM EDT	Severe Thunderstorm Warning	GSP	Burke	58 min
Sep 9, 3:11 AM EDT	Severe Thunderstorm Warning	GSP	McDowell, Rutherford	64 min
Sep 9, 3:15 AM EDT	Severe Thunderstorm Warning	GSP	Madison	60 min
Sep 9, 4:48 AM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Rutherford	57 min
Sep 9, 11:58 AM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Madison	62 min
Sep 9, 12:43 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	62 min
Sep 9, 1:43 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Madison	36 min
Sep 9, 1:46 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Henderson	59 min
Sep 9, 2:01 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell	59 min
Sep 9, 2:13 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, McDowell	62 min
Sep 9, 2:33 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Polk	57 min
Sep 9, 3:27 PM EDT	Severe Thunderstorm Warning	GSP	Polk	63 min
Sep 9, 3:46 PM EDT	Severe Thunderstorm Warning	GSP	Henderson	59 min
Sep 9, 3:50 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	55 min
Sep 9, 4:07 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Laurens, Spartanburg	53 min
Sep 9, 4:27 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	48 min
Sep 9, 4:51 PM EDT	Severe Thunderstorm Warning	GSP	Laurens, Spartanburg, Union	54 min
Sep 9, 5:38 PM EDT	Severe Thunderstorm Warning	GSP	Laurens, Union	35 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2009 Every severe thunderstorm warning in 2009

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.