Alert archive / North Carolina / Flash Flood Warnings in 1989

Flash Flood Warning 3, NWS Raleigh, NC

May 10, 1989Moore County, North Carolina

NWS Raleigh, NC issued this flash flood warning at May 10, 1989, 1:04 AM EDT for Moore County, North Carolina. It was in force for 116 min.

The area

The counties it named.

The facts

Issued
May 10, 1989, 1:04 AM EDT (05:04 UTC)
Expired
May 10, 1989, 3:00 AM EDT
In force
116 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Moore 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, 5.1 hours before the alert went out and 94 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 1989-05-10Temperature 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 00:00Z on 1989-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 364 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
601 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
364 m²/s²
0-3 km storm-relative helicity
519 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 KRDU 100508 RRA
FFWRDU
NCC125-100700-
 
SMALL STREAM AND URBAN FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
104 AM EDT WED MAY 10 1989
 
THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A
SMALL STREAM AND URBAN FLOOD WARNING EFFECTIVE UNTIL  300 AM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL NORTH CAROLINA
          ...MOORE
 
AT 1OO AM...14 INDIVIDUAL ROADS IN MOORE COUNTY WERE REPORTED AS
FLOODED BY THE MOORE COUNTY SHERIFFS OFFICE. ADDTIONAL RAIN IS
EXPECTED OVER THE AREA FOR THE NEXT 2 HOURS.
 
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS.  IF FLOODING IS OBSERVED....ACT QUICKLY
DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

Nearby

Flash Flood Warnings in North Carolina, 1989Every flash flood warning in 1989

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.