Alert archive / North Carolina / Flash Flood Warnings in 1998

Flash Flood Warning 61, NWS Greenville-Spartanburg, SC

August 12, 1998Macon County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 12, 1998, 9:21 PM EDT for Macon County, North Carolina. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 12, 1998, 9:21 PM EDT (01:21 UTC)
Expired
Aug 12, 1998, 11:20 PM EDT
In force
119 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Macon County, NC

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 1.4 hours before the alert went out and 221 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, Peachtre/Fal Fld, GA at 00:00Z on 1998-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 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, Peachtre/Fal Fld, GA at 00:00Z on 1998-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939Sfc1 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
28 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1408 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
34 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 KGSP 130121
FFWGSP
NCC113-130320-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
921 PM EDT WED AUG 12 1998

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MACON COUNTY IN WESTERN NORTH CAROLINA

* UNTIL 1120 PM EDT

* AT 915 PM... NATIONAL WEATHER SERVICE RADAR INDICATED A NEARLY
  STATIONARY THUNDERSTORM NEAR THE TOWN OF OTTO IN SOUTHERN
  MACON COUNTY. RADAR ESTIMATES THAT OVER 1.75 INCHES OF RAIN
  HAS FALLEN ACROSS MOST OF SOUTHERN MACON COUNTY...EXCEEDING
  THE AMOUNT OF RAIN NECESSARY TO CREATE FLASH FLOODING ON SOME OF
  THE SMALLER STREAMS AND CREEKS.

  MUCH OF THIS WATER WAS FALLING ALONG THE LITTLE TENNESSEE
  RIVER...AND EVENTUALLY WILL WORK ITS WAY TO THE TOWN OF FRANKLIN
  AND POINTS NORTH OF FRANKLIN.

REMEMBER THAT MOST FLOOD FATALITIES ARE THE RESULT OF DRIVING INTO
FLOODED STREETS...ROADS...OR STREAMS...OR OCCUR WHEN CHILDREN PLAY
IN OR NEAR STORM DRAINS OR STREAMS.

SAB

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.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this flash flood warning went out at Aug 12, 8:55 PM EDT, 26 minutes earlier.

Area forecast discussion, Aug 12, 8:55 PM EDT, 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
855 PM EDT WED AUG 12 1998

LATEST SURFACE ANALYSIS CONTINUES TO SHOW LOW PRESSURE NEAR AGS WITH A
SECONDARY LOW NEAR THE SURFACE MOISTURE CONVERGENCE AXIS ALONG THE
MOUNTAINS. THE ETA PROGGED CONTINUED BOUNDARY LAYER CONVERGENCE ACROSS
THE NC PIEDMONT 00Z TO 06Z WITH DECENT CAPES THROUGHOUT THE
PERIOD...BUT THE ETA HAS HAD A DIFFICULT TIME WITH THE WEAK LOW LEVEL
FLOW THUS FAR THIS EVENING. RECOMMEND WE STICK CLOSER TO CURRENT
ACTIVITY AND KEEP POPS IN THE 20/30 PERCENT RANGE FOR THE SOUTHERN
MOUNTAINS AND PERHAPS ISOLATED MENTION NRN MOUNTAINS IF IT IS STILL
WORTH IT AT ISSUANCE TIME...ESPECIALLY WITH WEAK UPSLOPE FLOW
CONTINUING NORTH OF THE LOWS FOR THE BETTER PART OF THE NIGHT AND VERY
WEAK SHORTWAVES IN THE UPPER FLOW.

TEMPS APPEAR IN GOOD SHAPE OVERALL GIVEN CURRENT DEWPOINTS AND EXPECTED
INCREASE IN 950 TO 850 MOISTURE OVERNIGHT AND WEAK UPSLOPE.
 F
HG

Nearby

Flash Flood Warnings in North Carolina, 1998Every flash flood warning in 1998

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.