Alert archive / North Carolina / Flash Flood Warnings in 1990

Flash Flood Warning 14, NWS Greenville-Spartanburg, SC

March 16, 19904 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Mar 16, 1990, 7:10 PM EST for 4 counties in North Carolina. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Mar 16, 1990, 7:10 PM EST (00:10 UTC)
Expired
Mar 16, 1990, 10:15 PM EST
In force
3 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

Counties Graham County, NC, Jackson County, NC, Macon County, NC, Swain 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

Athens Municipal, GA (KAHN), launched 00:00Z, 0.2 hours before the alert went out and 153 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, Athens Municipal, GA at 00:00Z on 1990-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 joules per kilogram.LCLLFCEL10008507005003002001001 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, Athens Municipal, GA at 00:00Z on 1990-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 428 square meters per square second.1939587897Sfc1 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
60 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
953 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
428 m²/s²
0-3 km storm-relative helicity
525 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAVL 170010
FFWAVL
NCC039-043-113-099-075-173-170315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE ASHEVILLE NC
710 PM EST FRI MAR 16 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 1015 PM EST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE STATE OF NORTH CAROLINA
      CHEROKEE...CLAY...MACON...JACKSON...GRAHAM...SWAIN

MODERATE TO HEAVY RAIN ALONG WITH SCATTERED THUNDERSTORMS OVER THE
WARNING AREA HAS CAUSED SMALL STREAMS TO RISE.  WEATHER SERVICE
RADAR SHOWS THAT THE RAIN WILL CONTINUE FOR A FEW MORE HOURS
RESULTING IN THE FLOODING OF SMALL STREAMS AND FLOOD PRONE AREAS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS OBSERVED,
ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES, DIPS OR LOW SPOTS IF WATER COVERS THE
ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM, EVEN A SMALL ONE,
ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

MOORE

What forecasters said that day

The local office's own words before this flash flood 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, Mar 16, 1:26 PM EST, 5 hours 44 minutes before
SCZ001>004-161930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREER SC
125 PM EST FRI MAR 16 1990

HEAVY RAIN SHOWERS PRODUCED MORE THAN ONE AND A HALF INCHES OF
RAIN IN OCONEE COUNTY OF SOUTH CAROLINA DURING THE LATE MORNING
HOURS. MS BRANDT...THE OFFICIAL WEATHER OBSERVER IN WALHALLA...
REPORTED 1.7 INCHES OF RAINFALL BETWEEN 7AM AND 1PM TODAY.
MUSGROVE
Special weather statement, Mar 16, 2:17 PM EST, 4 hours 53 minutes before
SCZ001>004-162015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREER SC
215 PM EST FRI MAR 16 1990

...THUNDERSTORMS WEAKEN OVER THE SOUTH CAROLINA UPSTATE...

AT 215 THIS AFTERNOON A BAND OF HEAVY RAIN SHOWERS EXTENDED
ACROSS GREENVILLE..PICKENS..ANDERSON..AND ABBEVILLE COUNTIES
OF THE PALMETTO STATE..WITH MOSTLY LIGHT RAIN FALLING OVER THE
REMAINING UPSTATE COUNTIES. THE SHOWERS WERE MOVING TO THE EAST
ABOUT 20 MILES AN HOUR.

THE RAINO WAS INDICATED TO CONTINUE THROUGH THE EVENING..BECOMING
HEAVY AT TIMES..OVER NORTHWESTERN SOUTH CAROLINA.
MUSGROVE
Special weather statement, Mar 16, 3:11 PM EST, 3 hours 59 minutes before
SCZ001>004-162115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREER SC
310 PM EST FRI MAR 16 1990

...FLASH FLOOD WATCH FOR THE SOUTH CAROLINA MOUNTAINS AND FOOTHILLS
   TONIGHT AND SATURDAY...

AT 315 THIS AFTERNOON WEATHER RADAR NOTED A ONE TO TWO HOUR BREAK
IN THE RAIN ACROSS NORTHEASTERN GEORGIA AND THROUGH OCONEE COUNTY
OF SOUTH CAROLINA. ELSEWHERE...LIGHT TO MODERATE RAIN WAS FALLING
IN THE UPSTATE AREAS OF THE PALMETTO STATE...WITH& A FEW HEAVY RAIN
SHOWERS IN GREENVILLE AND SPARTANBURG COUNTIES.

THE RAIN WAS MOVING NORTHEAST...WITH LITTLE CHANGE.
MUSGROVE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 7:10 PM ESTFlash Flood WarningGSPCherokee, Clay3 hr
Mar 16, 9:11 PM ESTSevere Thunderstorm WarningGSPHenderson, Polk, Rutherford64 min
Mar 16, 9:44 PM ESTFlash Flood WarningGSPHenderson2 hr
Mar 16, 10:11 PM ESTFlash Flood WarningGSPCaldwell2 hr
Mar 16, 11:13 PM ESTFlash Flood WarningGSPWatauga2 hr
Mar 17, 3:19 AM ESTFlash Flood WarningGSPMacon3 hr
Mar 17, 3:49 AM ESTFlash Flood WarningGSPWatauga2 hr

Nearby

Flash Flood Warnings in North Carolina, 1990Every flash flood 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.