Alert archive / North Carolina / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 42, NWS Newport/Morehead City, NC

August 13, 2001Craven County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Aug 13, 2001, 4:53 PM EDT for Craven County, North Carolina. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 13, 2001, 4:53 PM EDT (20:53 UTC)
Expired
Aug 13, 2001, 5:30 PM EDT
In force
37 min
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

County Craven County, NC

The radar

The Morehead City radar (KMHX), 42 km from the middle of the area, began a volume at 20:55 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.

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 8.9 hours before the alert went out and 42 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 2001-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1813 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 2001-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
1813 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
40 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.

933 
WUUS52 KMHX 132053
SVRMHX
NCC049-132130-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
453 PM EDT MON AUG 13 2001

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

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

* UNTIL 530 PM EDT

* AT 453 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM VANCEBORO TO TUSCARORA...OR FROM
  13 MILES NORTH OF NEW BERN TO 8 MILES NORTHEAST OF TRENTON...MOVING
  EAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
   RIVER BEND AT 500 PM EDT.
   ERNUL AT 505 PM EDT.
   NEW BERN...AND...TRENT WOODS AT 510 PM EDT.
   CAYTON AT 515 PM EDT.
   BRIDGETON...AND...JAMES CITY AT 520 PM EDT.

THIS LINE OF STORMS WILL PRODUCE LARGE HAIL...STRONG DAMAGING
WINDS...AND VERY HEAVY RAIN. TAKE COVER IN A SUBSTANTIAL SHELTER
UNTIL THE STORMS PASS.

EXCESSIVE DEADLY LIGHTNING IS OCCURRING WITH THIS SEVERE WEATHER. IF
OUTDOORS...STAY AWAY FROM TALL OBJECTS SUCH AS TREES. MOVE INDOORS IF
POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS. AVOID
USING TELEPHONES UNLESS IT IS AN EMERGENCY.

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

$$

14

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, 2:48 PM EDT, 2 hours 5 minutes earlier.

Area forecast discussion, Aug 13, 2:48 PM EDT, 2 hours 5 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
248 PM EDT MON AUG 13 2001

CURRENTLY...SHRTWV ENERGY WE MENTIONED THIS MORN THAT WAS ALNG THE
MTNS IS MOVG E. THIS FEATURE IS COMBINING WITH HEAT AND HIGH DWPTS
AND SHWRS/TSTMS ARE NUMEROUS OVR RDUS AREA. THIS ACTION SHLD
QUICKLY SPREAD INTO THE CSTL PLN AND NRN CSTL REG DURING THE
REMAINDER OF THIS AFT/EVE. THERE WILL ALSO BE SOME CELLS ON THE
C-BRZ FNT ALNG THE CNTRL AND S CST.

TNT...LUKS LIKE MORE SHWRS/TSTMS FOR ERN NC. MORE SHRTWV ENERGY ALFT
IS DIVING SEWD FRM MIDWEST AS WE SPEAK. THIS ENERGY WILL BRING MORE
UVM TO ERN NC LTR TNT AND ENHANCE/REDEVELOP SHWRS/TSTMS. THERE IS
DECENT POTENTIAL FOR HVY DOWNPOURS AS WE GET 25 KT OF FORCING AT 85H
ALNG WITH HIGH THETA-E VALUES...PWS ALSO ABV 2.00...WILL CONT THE
MENTION OF HVY DOWNPOURS IN THE ZONES. AS FAR AS POPS GO...WILL
BASICALLY GO CATEGORICAL FOR ALL THE REG. IT MAY TAKE A WHILE FOR
ACTION TO GET TO IMMEDIATE CST AS THEY ARE BEHIND THE C-BRZ RIGHT
NOW AND FAIRLY STABLE...HOWEVER IT WILL GET THERE  LOW TEMPS
NORMALLY WOULD BE MID/UPP 70S AHEAD OF THE FNT...WILL TWEAK VALUES A
LITTLE LOWER TO COMPENSATE FOR EVERYBODY GETTING SOME HVY DOWNPOURS
AND RAIN COOLING THINGS A BIT.  SO ALL IN ALL...SHWRS/TSTMS WITH
SOME HVY RAIN.  TUE...WK COLD FNT WILL BE EASING THRU ERN NC AS THE
DAY PROGRESSES. BEST CHC FOR SHWRS/TSTMS WILL BE CLOSER TO THE CST
AS THE UPP LVL TROF AXIS WILL NOT CLR THE CST UNTIL LTR IN THE AFT.
WILL HAVE A GRADIENT OF POPS FROM W TO E. HIGH TEMPS ARE TRICKY BEC
OF CLDCVR. WILL TEND TO CALL ERN AREAS M/CLDY AND ALLOW FOR SOME
SUNSHINE OUT W IN THE AFT. GENERALLY TEMPS MID 80S.  TUE NGT...
THINGS DRYING OUT AND WILL GO P/C. LOW TEMPS MORE COMFORTABLE WITH
67-72.  WED...DRIER AIRMASS IN PLACE...SUNSHINE AND PUFFY CU WITH
TEMPS IN THE MID 80S OR SO.

CWF: WINDS REMAIN ONLY AROUND 15 KT THIS AFTERNOON. WILL SEE A BRIEF
INCREASE TONIGHT FOR NRN WATERS. FOR TONIGHT WILL GO 15 TO 20 KT
DIMINISHING TO 15 KT AS FRONT NEARS FOR NRN WATERS...AND JUST 15 KT
OR LESS ELSEWHERE. FRONT WILL MOVE OFFSHORE ON TUE. PLAN ON TRENDING
TOWARDS THE ETA SOLN. WILL NOT BUY OFF ON STRONG AVN WINDS TUE NIGHT
RESULTING FROM THE STRONG LOW IT DEVELOPS OFF HATTERAS. WILL ONLY GO
WITH 15 KT TUE NIGHT. THEN WINDS BECOME LIGHT NE ON WED.

.MHX...NONE

PUBLIC/FIRE...GATES
MARINE/AVIATION...BANDY

In the hours before

Special weather statement, Aug 13, 4:05 PM EDT, 48 minutes before
NCZ029-044-045-079-080-090>095-098-132200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
405 PM EDT MON AUG 13 2001

...STRONG THUNDERSTORMS MOVING ACROSS EASTERN NORTH CAROLINA...

STRONG THUNDERSTORMS PRODUCING HEAVY RAIN...DANGEROUS LIGHTNING AND
WIND GUSTS TO 40 MPH ARE MOVING ACROSS THE COASTAL PLAIN. THIS SOLID
LINE OF THUNDERSTORMS WILL MOVE ACROSS MARTIN...PITT...LENOIR...
JONES...BEAUFORT...CRAVEN AND ONSLOW COUNTIES OVER THE NEXT COUPLE
OF HOURS. RAINFALL WILL REDUCE VISIBILITIES TO NEAR ZERO...MOTORISTS
SHOULD USE CAUTION WHEN ENCOUNTERING THESE STORMS.

BOATERS IN THE NEUSE RIVER AND PAMLICO SOUND SHOULD MONITOR THESE
STORMS AND HEAD FOR PORT AS THE STORMS APPROACH.

JO

Nearby

Severe Thunderstorm Warnings in North Carolina, 2001Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.