Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 85, NWS Greenville-Spartanburg, SC

July 1, 1990Montgomery County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jul 1, 1990, 5:20 PM EDT for Montgomery County, North Carolina. It was in force for 55 min.

The area

The counties it named.

The facts

Issued: Jul 1, 1990, 5:20 PM EDT (21:20 UTC)
Expired: Jul 1, 1990, 6:15 PM EDT
In force: 55 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Montgomery County, NC

The radar

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

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.3 hours before the alert went out and 83 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: 373 J/kg
Mixed-layer CIN: -170 J/kg
Mixed-layer LCL: 1629 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 115 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCLT 012123
SVRCLT
NCC123-012215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHARLOTTE NC
520 PM EDT SUN JUL 1 1990
 
THE NATIONAL WEATHER SERVICE IN CHARLOTTE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL NORTH CAROLINA
          ...MONTGOMERY
 
AT 520 PM EDT ... CHARLOTTE WEATHER RADAR DETECTED A SEVERE
THUNDERSTORM OVER SOUTHEASTERN MONTGOMERY COUNTY OF NORTH CAROLINA.
THIS SEVERE THUNDERSTORM WAS MOVING TOWARD THE EAST BETWEEN 15 AND 20
MPH. THIS MOVEMENT WILL TAKE THE SEVERE THUNDERSTORM ACROSS MONTGOMERY
COUNTY AND THE TOWNS OF TROY AND CANDOR BEFORE 630 PM EDT.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROML WINDOWS.

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 27 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 20 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, 48 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, 31 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, 8 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, 3 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

Nearby

Severe Thunderstorm Warnings in North 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; the sounding from the Mesonet's radiosonde archive.