Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 198, NWS Greenville-Spartanburg, SC

October 26, 1997Graham County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Oct 26, 1997, 5:42 PM EST for Graham County, North Carolina. It was in force for 33 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: Oct 26, 1997, 5:42 PM EST (22:42 UTC)
Expired: Oct 26, 1997, 6:15 PM EST
In force: 33 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Graham County, NC

The radar

The Knoxville radar (KMRX), 99 km from the middle of the area, began a volume at 22:41 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, 10.7 hours before the alert went out and 228 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: 265 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 503 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 368 m²/s²
0-3 km storm-relative helicity: 438 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Oct 26, 2:05 PM EST, 3 hours 37 minutes earlier.

Area forecast discussion, Oct 26, 2:05 PM EST, 3 hours 37 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
Oct 26, 8:32 AM EST	Flash Flood Warning	GSP	Greenville	3 hr
Oct 26, 9:33 AM EST	Flash Flood Warning	GSP	Anderson, Oconee, Pickens	2 hr
Oct 26, 9:33 AM EST	Flash Flood Warning	GSP	Spartanburg	2 hr

Nearby

Severe Thunderstorm Warnings in North Carolina, 1997 Every severe thunderstorm warning in 1997

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.