Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 129, NWS Greenville-Spartanburg, SC

October 25, 1990Mecklenburg County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Oct 25, 1990, 12:36 PM EDT for Mecklenburg County, North Carolina. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Oct 25, 1990, 12:36 PM EDT (16:36 UTC)
Expired
Oct 25, 1990, 1:45 PM EDT
In force
69 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Mecklenburg 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, 4.6 hours before the alert went out and 125 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 1990-10-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 1990-10-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1129 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
92 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, Oct 25, 9:43 AM EDT, 2 hours 53 minutes before
NCZ007-009-010-011-012-013-251600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ASHEVILLE NC
943 AM EDT THU OCT 25 1990

...MIXED PRECIPITATION IN THE HIGHER ELEVATIONS...

A MIXED BAG OF PRECIPITATION WAS OCCURRING OVER THE HIGHER ELEVATIONS
OF WESTERN NORTH CAROLINA THIS MORNING. RAIN AND SNOW MIXED AS WELL AS
SOME SLEET WAS REPORTED FROM LOCATIONS ABOVE THE 4000 FOOT MARK. RAIN
AND SNOW MIXED WAS REPORTED AT HIGHLANDS IN MACON COUNTY AND AT
GRANDFATHER MOUNTAIN IN AVERY COUNTY. SLEET WAS REPORTED AT FLAT TOP
MOUNTAIN IN BUNCOMBE COUNTY WHERE SOME ACCUMMULATION WAS REPORTED ON
ROADWAYS. A BRIEF THUNDERSTORM WAS ALSO REPORTED AT FLAT TOP MOUNTAIN.

NO PROBLEMS HAVE BEEN REPORTED SO DFAR WITH ROAD CONDITIONS IN THESE
AREAS..BUT MOTORISTS ARE STILL URGED TO USE CAUTION WHILE DRIVING IN
THE HIGHER MOUNTAIN ELEVATIONS. THESE CONDITIONS MAY PERSIST FOR THE
REMAINDER OF THE DAY IN THE HIGHER ELEVATIONS.
GRC
Special weather statement, Oct 25, 12:06 PM EDT, 30 minutes before
SCZ001>004-251900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1205 PM EDT THU OCT 25 1990

...SHOWERS AND THUNDERSTORMS CONTINUE ACROSS THE UPSTATE COUNTIES...

AT 1145 AM WEATHER RADAR SHOWED SCATTERED SHOWERS AND A FEW
THUNDERSTORMS OVER THE UPSTATE AREA OF SOUTH CAROLINA. THE STORMS
WITH THE HEAVIEST RAINFALL WERE IN SOUTHERN OCONEE COUNTY AND JUST
SOUTHWEST OF ANDERSON COUNTY IN HART COUNTY GEORGIA. THE STORMS WERE
MOVING TO THE NORTHEAST AT 10 MPH. SMALL HAIL HAS BEEN REPORTED FROM
OTHER STORMS THIS MORNING.

THE RAIN SHOULD END LATER THIS AFTERNOON AS A LOW PRESSURE SYSTEM
ALONG THE COAST MOVES OUT OF THE AREA.

LISTEN TO NOAA RADIO T.V. OR OTHER RADIO STATIONS FOR LATER STATEMENTS.
VALVERDE
Local storm report, Oct 25, 12:19 PM EDT, 17 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLOTTE NC
1215 PM EDT THU OCT 25 1990

AMATEUR RADIO OPERATOR REPORTED 1/4 HAIL OVER SOUTH CHARLOTTE...
MECKLENBURG COUNTY... AT 1212 PM EDT.

TRW+ REPORTE;D BY CLIMATE OBSERVER IN CONCORD... CABARRUS COUNTY AT
1214 PM EDT.

RK
Special weather statement, Oct 25, 12:28 PM EDT, 8 minutes before
NCZ008-251730-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLOTTE NC
1220 PM EDT THU OCT 25 19990

...THUNDERSTORMS PRODUCING SMALL HAIL IN ADDITION TO VERY HEAVY RAIN
AND GUSTY WINDS OVER  AND THE SURROUNDING PORTIONS OF THE SOUTHERN
PIEDMONT OF NORTH CAROLINA...

SMALL HAIL OCCURRED AT 1207 PM EDT ALONG HIGHWAY 160 JUST SOUTH OF
THE NATIONAL WEATHER SERVICE IN CHARLOTTE.

AT 1212 PM AN AMATEUR RADIO OPERATOR REPORTED ONE QUARTER INCH HAIL
IN SOUTH CHARLOTTE.

ANOTHER AMATEUR RADIO OPERATOR OBSERVED PEA SIZE HAIL IN CHARLOTTE AT
I-77 AND BROOKSHIRE FREEWAY AT 1217 PM.

THUNDERSTORMS WITH SMALL HAIL... GUSTY WINDS... BRIEF HEAVY PERIODS
OF RAIN WHICH WILL CAUSE FLOODING OF LOW LYING AREAS AND DEADLY
LIGHTNING WILL CONTINUE ACROSS MECKLENBURG... CABARRUS AND UNION
COUNTIES OF NORTH CAROLINA UNTIL AFTER 2 PM THIS AFTERNOON.

... ACTION ITEM...  DO NOT ATTEMPT TO DRIVE NOR WALK THROUGH FLOODED
AREAS.   AND... BE ALERT BSHOULD THE WIND BECOME GUSTY IN YOUR AREA.
WITH THE GROUND ALREADY SATURATED TREES COULD EASILY TUMBLE OVER IN
GUSTY WINDS AND EVEN DURING HEAVY RAIN.

RK

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 25, 1:39 PM EDTSevere Thunderstorm WarningGSPStanly51 min
Oct 25, 1:46 PM EDTFlash Flood WarningGSPMecklenburg4 hr
Oct 25, 5:41 PM EDTFlash Flood WarningGSPMecklenburg3 hr

Nearby

Severe Thunderstorm Warnings in North Carolina, 1990Every 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.