Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 112, NWS Newport/Morehead City, NC

August 13, 2000Onslow County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Aug 13, 2000, 2:54 PM EDT for Onslow County, North Carolina. It was in force for 51 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued
Aug 13, 2000, 2:54 PM EDT (18:54 UTC)
Expired
Aug 13, 2000, 3:45 PM EDT
In force
51 min
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Onslow County, NC

The radar

The Morehead City radar (KMHX), 51 km from the middle of the area, began a volume at 18:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Aug 13, 3:10 PM EDTHail 0.75Verona, NC

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 6.9 hours before the alert went out and 51 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, Newport, NC at 12:00Z on 2000-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 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, Newport, NC at 12:00Z on 2000-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -47 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
93 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
1324 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-47 m²/s²
0-3 km storm-relative helicity
-21 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 
WUUS52 KMHX 131855
SVRMHX
NCC133-131945-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
254 PM EDT SUN AUG 13 2000

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ONSLOW COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 345 PM EDT

* AT 254 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES WEST OF NEW RIVER AIR STATION...OR
  ABOUT 7 MILES SOUTHWEST OF JACKSONVILLE...MOVING SOUTHEAST AT 15
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   NEW RIVER AIR STATION AT 305 PM EDT.
   CAMP LEJEUNE AT 320 PM EDT.

HAIL...INTENSE RAIN AND STRONG DAMAGING WINDS ARE LIKELY WITH THIS
STORM. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

NNNN

LAT...LON 3483 7754 3468 7766 3444 7728 3465 7712

13

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Newport/Morehead City, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 13, 2:30 PM EDT, 24 minutes earlier.

Area forecast discussion, Aug 13, 2:30 PM EDT, 24 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
230 PM EDT SUN AUG 13 2000

UPR LOW WILL MOVE SE AND OVER ERN NC THIS EVENING...THEN SLOWLY PUSH
OFFSHORE LTR TNGHT INTO MON. WITH COLD POOL ALOFT OVER REGION AND
WEAK SPOKES OF VORT ROTATING AROUND UPR LOW WL CONT TO NEED MENTION
OF SHRA POSS TSRA TNGHT. PLAN ON GOING WITH HIGHEST POP NE CST WITH
LOWER POPS FURTHER S. ON MON DEEPEST MOISTURE WL BE MVG OFF CST WITH
UPR LOW. WL PROB STILL NEED SMALL POP FOR NE CST/OTR BNKS BUT MST
AREAS INLAND SHLD REMAIN DRY. LOOKS QUIET MON NIGHT INTO TUE WITH
SHRP UPR TRF JUST OFFSHR. MEAN RH IS QUITE LOW AND SHLD HAVE
SUBSIDENCE ACRS AREA. EXPECT MCLR SKIES WITH NO MENTION OF RAIN.
TEMPS QUITE PLEASANT FOR MID AUGUST...LOWS AWAY FROM WTR WILL
DROP WELL INTO THE 60S...WITH HIGHS IN THE 80S.

CWF: MAINLY NW FLOW THROUGH MON NIGHT. GRDNT TIGHTEST TNGHT
AND WL CONT 15 TO 20 KTS UP N. AS SFC LOW WEAKENS MON NIGqHT
INTO TUE SPEEDS SHLD DECREASE WITH SHFT TO SW LIKELY TUE AFTN
AS LOW DISSIPATES AND FNRT MVS TWRD OH VLY RGN. SWELLS FROM
ALBERTO SEEM TO BE DECREASING FROM S TO N AND WL SEE SEAS SLOWLY
SUBSIDE.

.MHX...NONE.

FREDERICK

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 13, 1:38 PM EDTSevere Thunderstorm WarningMHXDuplin, Lenoir52 min
Aug 13, 1:51 PM EDTSevere Thunderstorm WarningMHXPitt39 min
Aug 13, 2:07 PM EDTSevere Thunderstorm WarningMHXJones38 min
Aug 13, 2:30 PM EDTSevere Thunderstorm WarningMHXPitt45 min
Aug 13, 3:24 PM EDTSevere Thunderstorm WarningMHXCarteret36 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2000Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.