Alert archive / North Carolina / Flash Flood Warnings in 1990

Flash Flood Warning 17, NWS Greenville-Spartanburg, SC

March 16, 1990Caldwell County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Mar 16, 1990, 10:11 PM EST for Caldwell County, North Carolina. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Mar 16, 1990, 10:11 PM EST (03:11 UTC)
Expired
Mar 17, 1990, 12:15 AM EST
In force
2 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Caldwell 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 00:00Z, 3.2 hours before the alert went out and 149 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 00:00Z on 1990-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 162 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, Greensboro/Hi Pt, NC at 00:00Z on 1990-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 186 square meters per square second.19395878Sfc1 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
162 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
949 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
186 m²/s²
0-3 km storm-relative helicity
298 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAVL 170311
FFWAVL
NCC027-170515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE ASHEVILLE NC
1011 PM EST FRI MAR 16 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 1215 AM EST FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE STATE OF NORTH CAROLINA
      CALDWELL

AT 1000 PM EST NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF
STRONG THUNDERSTORMS EXTENDING NORTHWARD INTO CALDWELL COUNTY.
ALSO, THE CALDWELL COUNTY SHERIFFS DEPARTMENT SAID THAT WILSON
CREEK IN NORTHERN CALDWELL COUNTY IS FLOODING AT THE PRESENT TIME.

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.

SLUDER

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, 7:19 PM EST, 2 hours 52 minutes before
SCZ001>004-170200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
720 PM EST FRI MAR 16 1990

...SOME SEVERE WEATHER CONTINUES TO BE REPORTED FROM THE LINE OF
THUNDERSTORMS WHICH IS MOVING TOWARD THE UPSTATE...
AT 715 PM EST THE LINE OF STORMS STRETCHED FROM NORTH OF ATHENS
TO NEAR MACON AND CONTINUED MOVING EAST ABOUT 30 MPH.  THE NORTHERN
END OF THE LINE COULD AFFECT OCONEE COUNTY IN SOUTH CAROLINA AROUND
800 PM...AND THE MOST INTENSE PART OF THE LINE COULD AFFECT THE
ANDERSON/ABBEVILLE COUNTIES AREA BETWEEN 800 PM AND 900 PM.

IT IS NOT CLEAR WHETHER THIS LINE OF STORMS WILL MAINTAIN SEVERITY.
THE NATIONAL WEATHER SERVICE WILL CAREFULLY MONITOR THE PROGESS
3OF THIS WEATHER SYSTEM.

IN ADDITION...FLASH FLOOD WARNINGS COULD BECOME NECESSARY IN PARTS OF
THE UPSTATE DURING THE EVENING.
JONES
Special weather statement, Mar 16, 8:20 PM EST, 1 hour 51 minutes before
NCZ 010-011-012-013-170315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ASHEVILLE NC
820 PM EST FRI  MAR 17 1990

AT 810 PM WEATHER SERVICE RADAR SHOWED VERY STRONG THUNDERSTORMS IN
SOUTHERN MACON COUNTY.  THIS WAS PART OF A LINE OF STORMS EXTENDING
SOUTHWARD THROUGH WESTERN SOUTH CAROLINA AND EASTERN GEORGIA.  THE LINE
WAS MOVING EAST AT 50 MPH.

THESE STORMS WILL MOVE ACROSS MACON..JACKSON..TRANSYLVANIA..HENDERSON..
POLK AND RUTHERFORD COUNTIES DURING THE NEXT SEVERAL HOURS.  THESE MAY
PRODUCE STRONG GUSTY WINDS AND HEAVY RAIN IN ADDITION TO DANGEROUS
LIGHTNING.

IF THREATENING WEATHER APPROACHES YOUR AREA MOVE INSIDE A STRONG
BUILDING UNTIL THE STORM HAS PASSED.
HM
Local storm report, Mar 16, 9:13 PM EST, 58 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
912 PM EST FRI MAR 16 1990

902 PM......NORTH END OF CITY OF GREENWOOD...SOME TREES BLOWN DOWN.

WAJ
Special weather statement, Mar 16, 9:24 PM EST, 47 minutes before
NCZ007-008-170400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHARLOTTE NC
920 PM EST FRI MAR 16 1990

SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL MIDNIGHT FOR SECTION OF
THE SOUTHERN PIEDMONT OF NORTH CAROLINA INCLUDING CLEVELAND...GASTON
AND MECKLENBURG COUNTIES. THE WATCH IS ALSO IN EFFECT FOR PORTION OF
SOUTH CAROLINA INCLUDING THE COUNTIES OF CHEROKEE..YORK...CHESTER AND
LANCASTER COUNTIES.

A FLODD WATCH IS IN EFFECT FOR TONIGHT AND SATURDAY FOR THE
NORTHERN FOOTHILLS INCLUDING CATAWBA COUNTY.

AT 915 PM EST WEATHER RADAR SHOWES A LINE OF THUNDERSTORMS EXTENDS
FROM NEAR ASHVILLE NORTH CAROLINA SOUTH TO NEAR GREENVILLE SOUTH
CAROLINA. THIS AREA OF THUNDERSTORMS WAS MOVING TO THE EAST AT
ABOUT 50 MPH AND WILL BE MOVING INTO CLEVELAND COUNTY BETWEEN
1000PM AND 1100 PM.

STRONG GUSTY WIND...HEAVY DOWNPOURS AND POSSIBLE HAIL COULD ACCOMPANY
THESE THUNDERSTORMS ALONG WITH SOME FLOODING.

CONTINUE TO LISTEN TO YOUR LOCTAL RADIO...TV OR NOAA WEATHER RADIO
FOR FURTHER STATEMENT.

THE NEXT STATEMENT WILL BE ISSUED BY 1100 PM OR SOONER IF CONDITIONS
WORSEN

JPW

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 7:10 PM ESTFlash Flood WarningGSPGraham, Jackson, Macon, Swain3 hr
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, 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.