Alert archive / South Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 86, NWS Greenville-Spartanburg, SC

July 1, 1990Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 1, 1990, 5:23 PM EDT for Laurens County, South Carolina. It was in force for 52 min. 2 reports 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: Jul 1, 1990, 5:23 PM EDT (21:23 UTC)
Expired: Jul 1, 1990, 6:15 PM EDT
In force: 52 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Laurens 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
Jul 1, 5:42 PM EDT	Thunderstorm Wind 0	Laurens, SC
Jul 1, 6:15 PM EDT	Thunderstorm Wind 0	Laurens, 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, 9.4 hours before the alert went out and 133 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: 914 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 1350 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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.

In the hours before

Special weather statement, Jul 1, 3:53 PM EDT, 1 hour 30 minutes before

SCZ001>004-012000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
355 PM EDT SUN JUL 01 1990

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM EDT...

AT 351 PM EDT WEATHER RADAR SHOWED THUNDERSTORMS AND SHOWERS
MOVING ACROSS THE UPSTATE OF SOUTH CAROLINA. THE STRONGEST STORMS
WERE OVRE NORTHEAST GREENVILLE AND NORTH SPARTANBURG COUNTIES. THESE
STORMS WERE MOVING TO THE SOUTHEAST AT 25 MILES AN HOUR. PEA TO
MARBLE SIZE HAS BEEN REPORTED WITH THESE STORMS.

THESE STORMS MAY PRODUCE DAMAGING WINDS...LARGE HAIL AND FREQUENT
LIGHTNING. LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
VALVERDE

Special weather statement, Jul 1, 4:00 PM EDT, 1 hour 23 minutes before

NCZ 007-009-010-011-012-013-012200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ASHEVILLE NC
400 PM EDT SUN JUL 01 1990

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9 PM...

AT 4 PM WEATHER SERVICE RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS
ENTERING GRAHAM AND CHEROKEE COUNTIES IN WESTERN NORTH CAROLINA. THIS
CLUSTER PRODUCED LARGE HAIL IN EAST TENNESSEE. THEY WERE MOVING
SOUTHEAST AROUND 25 MILES AN HOUR.

BETWEEN 3 AND 4 THIS AFTERNOON SEVERAL REPORTS OF SMALL HAIL AND GUSTY
WINDS CAME INTO THE ASHEVILLE OFFICE. THESE INCLUDED LENIOR IN CALDWELL
COUNTY..BOONE AND BLOWING ROCK IN WATAUGA COUNTY AND WEST JEFFERSON IN
ASHE COUNTY.

PERSONS ALL ACROSS WESTERN NORTH CAROLINA SHOULD STAY ALERT AND BE
PREPARED TO MOVE QUICKLY TO A PLACE OF SAFETY UNTIL THE THREAT OF
SEVERE WEATHER HAS PASSED.

KEEP ABREAST OF THE LASTEST FORECASTS...STATEMENTS AND POSSIBLE WANINGS.
AS

Special weather statement, Jul 1, 4:32 PM EDT, 51 minutes before

SCZ001>004-012130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
430 PM EDT SUN JUL 01 1990

...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 1100 PM EDT...

AT 425 PM EDT WEATHER RADAR SHOWED A LINE OF THUNDERSTORMS AND
SHOWERS FROM CENTRAL PICKENS THROUGH GREENVILLE TO SOUTH CHEROKEE
COUNTIES IN SOUTH CAROLINA. THE STRONGEST STORMS WERE IN EAST
SPARTANBURG AND SOUTH CHEROKEE COUNTIES. OTHER STRONG STORMS WERE
LOCATED IN WEST NORTH CAROLINA. THESE STORMS WERE MOVING TO THE
SOUTHEAST AT 25 MILES AN HOUR. PEA TO MARBLE SIZE HAS BEEN REPORTED
WITH THESE STORMS.

THESE STORMS MAY PRODUCE DAMAGING WINDS LARGE HAIL AND FREQUENT
LIGHTNING.LISTEN FOR LATER STATEMENTS# AND POSSIBLE WARNINGS.
VALVERDE

Local storm report, Jul 1, 4:49 PM EDT, 34 minutes before

DELAYED STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
448 PM EDT SUN JUL 1 1990

348 PM EDT     SPARTANBURG COMMS REPORTED DIME HAIL NEAR BOILING
               SPRINGS.

JONES

,

Local storm report, Jul 1, 5:12 PM EDT, 11 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
510 PM EDT SUN JUL 1 1990

500 PM EDT     EAST OF MAULDIN AND SIMPSONVILLE...NUMEROUS REPORTS OF
               MOSTLY MARBLE AND SOME DIMME HAIL...ACCUMULATING RAPIDLY.

JONES

Local storm report, Jul 1, 5:17 PM EDT, 6 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE ASHEVILLE NORTH CAROLINA
515 PM EDT SUN JUL 01 1990

TIME                  EVENT
BETWEEN 330 AND       WATAUGA COUNTY
400 PM EDT.           SOME TREES BLOWN DOWN ON ?THE NORTHWEST SIDE
                      OF BOONE. REPORTED BY RADIO STATION WATA IN
                      BOONE.
AS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 3:49 PM EDT	Severe Thunderstorm Warning	GSP	Gaston	41 min
Jul 1, 4:08 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg	67 min
Jul 1, 4:10 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee	65 min
Jul 1, 4:16 PM EDT	Severe Thunderstorm Warning	GSP	Union	59 min
Jul 1, 5:20 PM EDT	Severe Thunderstorm Warning	GSP	Montgomery	55 min
Jul 1, 5:06 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	54 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 1990 Every severe thunderstorm warning 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.