Alert archive / North Carolina / Flash Flood Warnings in 1986

Flash Flood Warning 1, NWS Raleigh, NC

June 29, 1986Wake County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Jun 29, 1986, 1:09 AM EDT for Wake County, North Carolina. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 29, 1986, 1:09 AM EDT (05:09 UTC)
Expired
Jun 29, 1986, 4:00 AM EDT
In force
3 hr
Issued by
NWS Raleigh, NC
Area
Whole counties

County Wake 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, 5.2 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 00:00Z on 1986-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1007 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 1986-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
1007 J/kg
Mixed-layer CIN
-68 J/kg
Mixed-layer LCL
1721 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
28 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 290509
FFWRDU
NCC183-290800-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
109 AM EDT SUN JUN 29 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 400 AM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

NORTH CAROLINA...EASTERN WAKE

DURING THE PAST HOUR VERY INTENSE THUNDERSTORMS HAVE DROPPED NEARLY
4 INCHES OF RAIN OVER EASTERN WAKE COUNTY INCLUDING RALEIGH. WENDELL
POLICE DEPARTMENT REPORTED 2 FEET OF WATER IN MANY BUSINESSES
ALONG THE MAIN STREET IN WENDELL. MOST SMALL STREAMS ARE NEAR
BANKFULL. RADAR INDICATES THAT MORE HEAVY RAIN WILL FALL IN THIS AREA
IN THE NEXT FEW HOURS POSING THE THREAT OF ADDITIONAL URBAN AND
SMALL STREAM FLOODING.

YOU ARE REMINDED THAT MANY FLOOD RELATED DEATHS ARE DUE TO MOTORISTS
ATTEMPTING TO CROSS FLOODED ROADWAYS..BRIDGES..AND UNDERPASSES...AND
DUE TO CHILDREN PLAYING NEAR FLOODED STREAMS OR STORM DRAINS.

THE NE!XT STATEMENT ON THIS SITUATION WILL BE ISSUED  AT 230 AM OR
SOONER IF CONDITIONS WORSEN. KEEP TUNED TO THE NEAREST NOAA WEATHER
RADIO STATION OR LOCAL NEWS MEDIA FOR INFORMATION.

 DMD

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 28, 9:00 PM EDT, 4 hours 9 minutes before
^RDUSPSGSO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
 859 PM EDT SAT JUN 28 1986

AT 855 PM EDT RADAR INDICATED A VERY HEAVY THUNDERSTROM IN CENTRAL
STOKES COUNTY EXTENDING INTO NORTHERN FORSYTH COUNTY. THE STORM IS
MOVING TO THE EAST AT APPROXIMATELY 25 MPH.

RESIDENTS OF STOKES.. NORTHERN FORSYTH..ROCKINGHAM..AND NORTHERN
GUILFORD COUNTIES CAN EXPECT FREQUENT LIGHTNING..GUSTY WINDS..
LOCALLY HEAVY RAIN..AND POSSIBY SMALL %HAIL.

THIS STORM IS CURRENTLY MOVING INTO ROCKINGHAM AND NORTHERN GUILFORD
COUNTIES .

RJK
Local storm report, Jun 28, 9:16 PM EDT, 3 hours 53 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
915 PM EDT SAT JUN 28 1986
ADDITIONAL REPORTS
TIME           EVENT
540 PM EDT    PITT COUNTY REPORTS WIDESPREAD WIND DAMAGE OVER COUNTY.
              NO KNOWN INJURIES..MOSTLY TREES AND POWER LINES DOWN..
              SIMILAR DAMAGE IN CITY OF GREENVILLE.
445 PM EDT    ERWIN IN HARNETT COUNTY..POWER LINES AND LARGE TREE LIMBS
              BLOWN DOWN.
615 PM EDT    TOP BLOWN OFF MOBILE HOME..TREES AND POWER LINES
              NEAR LAGRANGE IN LENOIR COUNTY.  NO INJURIES..
              TIME ESTIMATED BASED ON RADAR OVERLAY.
610 PM EDT    GUST 55 KNOTS AT FBG
630 PM EDT    TREES BLOWN ACROSS ROADS 2 S KIPLING IN HARNETT COUNTY.
645 PM EDT    TREES AND POWER LINES FALLING ALL OVER FAYETTEVILLE.
656 PM EDT    3 BLOCK AREA NE FAYETTEVILLE LARGE NUMBER TREES DOWN
              SNAPPED OFF AND UPROOTED..NUMBER OF CARS DAMAGED AND
              SOME HOMES DAMAGED BY FALLING TREES..NOD KNOWN INJURIES.
700 PM EDT    TREES AND TELEPHONE POLES DOWN DOWNTOWN BENSON.
WAJ
Special weather statement, Jun 28, 10:18 PM EDT, 2 hours 51 minutes before
^RDUSPSGSO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
1016 PM EDT SAT JUN 28 1986

AT 1010 PM EDT RADAR INDICATED VERY HEAVY THUNDERSTORMS IN GUILFORD
..ROCKINGHAM..AND ALAMANCE COUNTIES WITH OTHER SCATTERED THUNDERSTORMS
IN PARTS OF STOKES..FORSYTH..YADKIN..DAVIE..AND DAVIDSON COUNTIES.

MOVEMENT OF THESE THUNDERSTORMS IS TO THE SOUTHEAST AT ABOUT 25 MPH.
LOCALLY HEAVY RAIN..FREQUENT LIGHTNING..AND STRONG GUSTY WINDS CAN
BE EXPECTED. PERSONS LIVING IN GUILFORD..ROCKINGHAM..AND ALAMANCE
COUNTIES ESPECIALLY SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER.

RJK
Special weather statement, Jun 28, 11:21 PM EDT, 1 hour 48 minutes before
^RDUSPSGSO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
1120 PM EDT SAT JUN 28 1986

AT 1105 PM EDT RADAR INDICATED SHOWERS AND THUNDERSTORMS OVER A LARGE
PORTION OF THE NORTHWEST PIEDMONT OF NORTH CAROLINA. THE HEAVIEST
ACTIVITY HAS NOW MOVED TO THE EAST AND SOUTHEAST OVER THE NORTHEAST
PIEDMONT OF NORTH CAROLINA.

THE HEAVIEST PRECIPITATION THROUGHOUT THE NORTHWEST PIEDMONT AT THIS
TIME WAS LOCATED IN NORTHWESTERN GUILFORD COUNTY AND SOUTHWESTERN
ALAMANCE COUNTY. THE MOVEMENT ON ALL OF THE SHOWERS AND THUNDERSTORMS
WAS TO THE SOUTHEAST AT APPROXIMATELY 25 MPH.

RESIDENTS CAN EXPECT FREQUENT LIGHTNING..LOCALLY HEAVY RAIN..AND BRIEF
GUSTY WINDS AS THESE STORMS CONTINUE TO MOVE SOUTHEASTWARD.

RJK
Special weather statement, Jun 28, 11:58 PM EDT, 1 hour 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM, NC
1158 PM EDT SAT JUNE 28 1986

VERY INTENSE THUNDERSTORMS ARE LOCATED OVER SOUTH DURHAM AND MUCH OF
WAKE COUNTIES. IN THE PAST HOUR THESE STORMS HAVE PRODUCED LARGE
AMOUNTS OF RAIN IN THE TRIANGLE AREA. AT 1150 WAKE COUNTY SHERIFF'S
DEPARTMENT REPORTED FLOODING ALONG STATE ROAD 1003 BETWEEN
KNIGHTDALE AND WENDELL.

HEAVY THUNDERSTORM ACTIVITY IS EXPECTED TO MOVE SLOWLY ACROSS THE
TRIANGLE AREA FOR THE NEXT HOUR. IF ADDITIOINAL HEAVY RAIN
FALLS IN THIS AREA MINOR URBAN FLOODING WILL LIKELY OCCUR.
Special weather statement, Jun 29, 1:06 AM EDT, 3 minutes before
^RDUSPSGSO

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENSBORO NC
105 AM EDT SUN JUN 29 1986

AT 0100 AM EDT RADAR INDICATED SHOWERS AND THUNDERSTORMS OVER PARTS
OF CASWELL..ALAMANCE..GUILFORD AND NORTHERN RANDOLPH COUNTIES.
MOVEMENT WAS TO THE EAST AT 25 TO 30 MPH.

RESIDENTS OF THE ABOVE MENTIONED COUNTIES SHOULD BE ON THE LOOKOUT
FOR THREATENING WEATHER CONDITIONS. FREQUENT LIGHTNING..STRONG GUSTY
WINDS.. AND LOCALLY HEAVY RAINS ARE STILL POSSIBLE WITH SOME OF THESE
SYSTEMS.

REPORT ANY SEVERE WEATHER TO THE LOCAL LAW ENFORCEMENT OFFICIALS FOR
RELAY TO THE NATIONAL WEATHER SERVICE.

RJK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 12:08 AM EDTSevere Thunderstorm WarningRAHJohnston67 min

Nearby

Flash Flood Warnings in North Carolina, 1986Every flash flood warning in 1986

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.