Alert archive / North Carolina / Flash Flood Warnings in 1992

Flash Flood Warning 1, NWS Raleigh, NC

June 26, 1992Wake County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jun 26, 1992, 12:25 PM EDT for Wake County, North Carolina. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 26, 1992, 12:25 PM EDT (16:25 UTC)
Expired
Jun 26, 1992, 2:30 PM EDT
In force
2 hr
Issued by
NWS Raleigh, NC
Area
Whole counties

County Wake County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 4.4 hours before the alert went out and 117 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 1992-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 608 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 12:00Z on 1992-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.193958Sfc1 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
608 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
960 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KRDU 261626
FFWRDU
NCC183-261830-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
1225 PM EDT FRI JUN 26 1992
 
THE NATIONAL WEATHER SERVICE IN RALEIGH/DURHAM HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  230 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTH CENTRAL NORTH CAROLINA
 
   ...WAKE COUNTY
 
AT 1215 PM CITY OF RALEIGH 911 DISPATCH OFFICE INDICATED FLOODING
ACROSS MANY SECTIONS OF NORTH RALEIGH. SEVERAL MAJOR INTERSECTIONS ARE
UNDER WATER ESPECIALLY AROUND GLENWOOD AVENUE. CITY POLICE ARE WARNING
RESIDENTS OF RAPIDLY RISING CREEK LEVELS IN THE AREA INCLUDING
CRABTREE AND PIGEON HOUSE CREEKS.
 
A SLOW MOVING THUNDERSTORM IS MOVING ACROSS RALEIGH AND SHOULD MOVE
EAST OF THE AREA WITHIN THE NEXT HOUR. HOWEVER...MORE THUNDERSTORMS
ARE POSSIBLE THIS AFTERNOON AND FLOODING MAY PERSIST.
 
 
 
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.

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, Jun 26, 11:40 AM EDT, 45 minutes before
NCZALL-261645-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
1138 AM EDT FRI JUN 26 1992

NORTH CAROLINA SEVERE THUNDERSTORM OUTLOOK...A FEW SEVERE
THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WIND ARE POSSIBLE ACROSS
ALL OF NORTH CAROLINA THIS AFTERNOON AND EVENING.

AT 1130 AM EDT NO SEVERE WETHER WAS OCCURRING IN NORTH CAROLINA.
HOWEVER...SCATTERED THUNDERSTORMS EXTENDED ACROSS CHATHAM...SOUTHERN
ORANGE...SOUTHERN DURHAM...AND WAKE COUNTIES IN THE NORTHEAST
PIEDMONT. THESE STORMS WERE MOVING EAST AT AROUND 25 MPH AND WILL
CONTAIN VERY HEAVY RAIN AND GUSTY WINDS.

OTHER THUNDERSTORMS WILL DEVELOP ACROSS NORTH CAROLINA THIS
AFTERNOON...SOME OF WHICH COULD BE LOCALLY SEVERE PRODUCING LARGE HAIL
AND DAMAGING WINDS.

ALL PEOPLE IN NORTH CAROLINA SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER THROUGH THIS EVENING AND LISTEN TO NOAA WEATHER RADIO...TV....
OR COMMERCIAL RADIO FOR LATER STATEMENTS AND POSSIBLPE WARNINGS.

MDV
Special weather statement, Jun 26, 11:47 AM EDT, 38 minutes before
NCZALL-261645-

SPECIAL WEATHER STATEMENT...CORRECTED FOR TYPO IN SECOND PARAGRAPH.
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
1138 AM EDT FRI JUN 26 1992

NORTH CAROLINA SEVERE THUNDERSTORM OUTLOOK...A FEW SEVERE
THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WIND ARE POSSIBLE ACROSS
ALL OF NORTH CAROLINA THIS AFTERNOON AND EVENING.

AT 1130 AM EDT NO SEVERE WEATHER WAS OCCURRING IN NORTH CAROLINA.
HOWEVER...SCATTERED THUNDERSTORMS EXTENDED ACROSS CHATHAM...SOUTHERN
ORANGE...SOUTHERN DURHAM...AND WAKE COUNTIES IN THE NORTHEAST
PIEDMONT. THESE STORMS WERE MOVING EAST AT AROUND 25 MPH AND WILL
CONTAIN VERY HEAVY RAIN AND GUSTY WINDS.

OTHER THUNDERSTORMS WILL DEVELOP ACROSS NORTH CAROLINA THIS
AFTERNOON...SOME OF WHICH COULD BE LOCALLY SEVERE PRODUCING LARGE HAIL
AND DAMAGING WINDS.

ALL PEOPLE IN NORTH CAROLINA SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER THROUGH THIS EVENING AND LISTEN TO NOAA WEATHER RADIO...TV....
OR COMMERCjIAL RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

MDV

The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 12:40 PM EDTSevere Thunderstorm WarningRAHNash65 min
Jun 26, 12:47 PM EDTSevere Thunderstorm WarningRAHEdgecombe, Wilson58 min
Jun 26, 12:57 PM EDTSevere Thunderstorm WarningRAHWake63 min
Jun 26, 1:20 PM EDTSevere Thunderstorm WarningRAHJohnston55 min
Jun 26, 1:51 PM EDTSevere Thunderstorm WarningRAHNash, Wilson69 min
Jun 26, 3:07 PM EDTSevere Thunderstorm WarningRAHWake68 min
Jun 26, 3:49 PM EDTFlash Flood WarningRAHWake116 min
Jun 26, 4:40 PM EDTSevere Thunderstorm WarningRAHChatham65 min
Jun 26, 4:51 PM EDTSevere Thunderstorm WarningRAHDurham, Orange69 min
Jun 26, 5:32 PM EDTFlash Flood WarningRAHDurham, Wake4 hr
Jun 26, 6:34 PM EDTSevere Thunderstorm WarningRAHCumberland41 min

Nearby

Flash Flood Warnings in North Carolina, 1992Every flash flood warning in 1992

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.