Alert archive / South Carolina / Tornado Warnings in 1990

Tornado Warning 4, NWS Greenville-Spartanburg, SC

February 10, 1990Cherokee County, Union County, South Carolina

NWS Greenville-Spartanburg, SC issued this tornado warning at Feb 10, 1990, 8:33 AM EST for Cherokee County, Union County, South Carolina. It was in force for 57 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Feb 10, 1990, 8:33 AM EST (13:33 UTC)
Expired: Feb 10, 1990, 9:30 AM EST
In force: 57 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

Counties Cherokee County, SC, Union County, SC

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Feb 10, 8:42 AM EST	Tornado F1	Cherokee, SC

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 1.6 hours before the alert went out and 185 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: 524 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 667 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 189 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KGSP 101335
TORGSP
SCC021-087-101430-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREER SC
833 AM EST SAT FEB 10 1990
 
THE NATIONAL WEATHER SERVICE IN GREER HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  930 AM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN  SOUTH CAROLINA
          ...CHEROKEE...UNION
 
REPORTS CONTINUE OF A POSSIBLE TORNADO MOVING NORTHEAST ACROSS
SPARTANBURG COUNTY. THIS STORM SHOULD BE MOVING INTO CHEROKEE AND
UNION COUNTIES SHORTLY. DAMAGE REPORTS HAVE BEEN RECEIVED IN AREAS
WHERE THIS STORM HAS PASSED. MOVEMENT SHOULD BE NORTHEAST AT ABOUT
50 MPH.
 
 
 
PEOPLE IN OR NEAR THE PATH OF THIS STORM SHOULD TAKE IMMEDIATE
ACTION TO PROTECT THEIR LIVES. GO TO YOUR BASEMENT...THE CENTER OF
BUILDINGS...COVER YOUR HEAD. DO NOT GO NEAR DOORS OR WINDOWS. GET
OUT OF MOBILE HOMES AND VEHICLES. GET INTO A STURDY BUILDING OR A
DITCH.

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 10, 7:02 AM EST	Severe Thunderstorm Warning	GSP	Oconee	58 min
Feb 10, 7:27 AM EST	Severe Thunderstorm Warning	GSP	Anderson, Pickens	63 min
Feb 10, 7:39 AM EST	Tornado Warning	GSP	Pickens	66 min
Feb 10, 7:52 AM EST	Tornado Warning	GSP	Anderson, Greenville	68 min
Feb 10, 8:18 AM EST	Tornado Warning	GSP	Laurens, Spartanburg	47 min

Nearby

Tornado Warnings in South Carolina, 1990 Every tornado warning in 1990 Tornadoes in 1990

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.