Alert archive / North Carolina / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 49, NWS Newport/Morehead City, NC

July 19, 2002Washington County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Jul 19, 2002, 10:41 PM EDT for Washington County, North Carolina. It was in force for 34 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
Jul 19, 2002, 10:41 PM EDT (02:41 UTC)
Expired
Jul 19, 2002, 11:15 PM EDT
In force
34 min
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

County Washington County, NC

The radar

The Morehead City radar (KMHX), 121 km from the middle of the area, began a volume at 02:40 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
Jul 19, 11:05 PM EDTThunderstorm Wind 52 ERoper, NCNumerous trees and power lines blown from Roper to Pleasant Grove.

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 00:00Z, 2.7 hours before the alert went out and 121 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 00:00Z on 2002-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2879 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 00:00Z on 2002-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
2879 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.8
Supercell composite
6.8

Open this sounding in Storm Lab

The text

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

911 
WUUS52 KMHX 200241
SVRMHX
NCC187-200315-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
1040 PM EDT FRI JUL 19 2002

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

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

* UNTIL 1115 PM EDT

* AT 1040 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER PLYMOUTH...MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   WESTOVER AT 1045 PM EDT.
   ROPER AT 1050 PM EDT.
   PLEASANT GROVE AT 1055 PM EDT.

THIS STORM WILL PRODUCE STRONG DAMAGING WINDS IN EXCESS OF 60 MPH. IF
YOU ARE IN THE PATH OF THE STORM...SEEK SHELTER INSIDE A SUBSTANTIAL
STRUCTURE UNTIL THE STORM PASSES.

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

$$

LAT...LON 3593 7681 3576 7680 3575 7636 3598 7637

5

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 2:11 PM EDTSpecial Marine WarningMHX64 min
Jul 20, 5:46 PM EDTSpecial Marine WarningMHX44 min
Jul 20, 6:12 PM EDTSevere Thunderstorm WarningMHXJones, Onslow33 min
Jul 20, 6:17 PM EDTSevere Thunderstorm WarningMHXTyrrell, Washington28 min
Jul 20, 6:33 PM EDTSevere Thunderstorm WarningMHXCarteret42 min
Jul 20, 6:44 PM EDTSevere Thunderstorm WarningMHXCraven46 min
Jul 20, 7:31 PM EDTSevere Thunderstorm WarningMHXCarteret44 min
Jul 20, 7:37 PM EDTSpecial Marine WarningMHX38 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2002Every severe thunderstorm warning in 2002

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.