Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 15, NWS Newport/Morehead City, NC

April 21, 2000Beaufort County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Apr 21, 2000, 7:44 PM EDT for Beaufort County, North Carolina. It was in force for 31 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Apr 21, 2000, 7:44 PM EDT (23:44 UTC)
Expired
Apr 21, 2000, 8:15 PM EDT
In force
31 min
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

County Beaufort County, NC

The radar

The Morehead City radar (KMHX), 79 km from the middle of the area, began a volume at 23:45 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
Apr 21, 8:00 PM EDTHail 0.75Washington, 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, 11.7 hours before the alert went out and 79 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 2000-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 65 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 2000-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 210 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
65 J/kg
Mixed-layer CIN
-291 J/kg
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
210 m²/s²
0-3 km storm-relative helicity
206 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.

113 
WUUS52 KMHX 212345
SVRMHX
NCC013-220015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
744 PM EDT FRI APR 21 2000

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BEAUFORT COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 815 PM EDT

* AT 744 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR WASHINGTON...MOVING NORTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   WASHINGTON AT 748 PM EDT.

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM.

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

NNNN

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 Apr 21, 2:08 PM EDT, 5 hours 36 minutes earlier.

Area forecast discussion, Apr 21, 2:08 PM EDT, 5 hours 36 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
208 PM EDT FRI APR 21 2000

FORECAST PROBLEM OF THE DAY...THUNDERSTORMS THIS EVENING AND WHETHER
IT WILL RAIN TOMORROW.

MODELS IN DECENT AGREEMENT THIS RUN WITH DEVELOPING A SFC LOW OVER
S VA THIS AFTERNOON AND TAKING IT SLOWLY NE TO JUST OFF THE NY COAST
BY 12Z SUNDAY.  COLD FRONT WILL MOVE THRU OUR CWA TONIGHT AND NEAR OR
SLIGHTLY OFF THE COAST BY AROUND 06Z. H5 LOW OVER OHIO VALLEY THIS
AFTERNOON WILL TRACK SE THRU 00Z SUNDAY THEN LIFT NE. BEST DYNAMICS
ARE N OF OUR CWA AND SPC HAS SVR TSTM WATCH THRU 21Z TO OUR N. ANY
TSTMS THAT DO DEVELOP OVER OUR CWA HAVE THE POTENTIAL OF BECOMING
SVR ACROSS OUR CWA WITH CAPES 2000-3000J/KG...LIMITING FACTOR IS LACK
OF LOW LEVEL MOISTURE. A VORT MAX ROTATING OUT OF COLD UPPER LOW MAY
TRIGGER SOME SPRINKLES TOMORROW AND WILL GO WITH 30% POPS. AT ANY
RATE WE WILL SEE A GOOD BIT OF CLOUDS ACROSS MUCH OF THE CWA
TOMORROW...THE ONLY EXCEPTION POSSIBLY WOULD BE SOUTHERN PART OF
CWA. DECREASING CLOUDS SHOULD OCCUR SAT NIGHT AS LOWS (SFC & H5)
LIFT NE AND LOW LEVEL MOISTURE DECREASES. LOTS OF SUNSHINE SUNDAY
AND WARMER.

TEMPS...WHERE DIFFERENT WILL FAVOR FAN TEMPS AS THEY ARE MORE IN
LINE WITH LOCAL SCHEMES.

EXTENDED...MRF LOOKS DRY UNTIL MID WEEK THEN A SERIES OF LOWS
MOVE ACROSS OR NEAR OUR CWA. TEMPS AT OR SLIGHTLY BELOW SEASONAL
NORMALS.

CWF...SCA FOR STIFF SW WINDS TONIGHT BECOMING W LATE. W-NW WINDS
BELOW SCA REST OF FCST PD.

.MHX...SCA CSTL WTRS AND SNDS.

WS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 7:28 PM EDTSevere Thunderstorm WarningMHXMartin32 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.