Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 25, NWS Newport/Morehead City, NC

April 29, 2000Onslow County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Apr 29, 2000, 8:03 PM EDT for Onslow County, North Carolina. It was in force for 27 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: Apr 29, 2000, 8:03 PM EDT (00:03 UTC)
Expired: Apr 29, 2000, 8:30 PM EDT
In force: 27 min
Issued by: NWS Newport/Morehead City, NC
Area: Whole counties

County Onslow County, NC

The radar

The Morehead City radar (KMHX), 47 km from the middle of the area, began a volume at 00:07 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 00:00Z, 0.1 hours before the alert went out and 47 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 175 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1160 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -32 m²/s²
0-3 km storm-relative helicity: -2 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 300005
SVRMHX
NCC133-300030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
803 PM EDT SAT APR 29 2000

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

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

* UNTIL 830 PM EDT

* AT 803 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES NORTHEAST OF SNEADS FERRY...MOVING
  SOUTHEAST AT 20 MPH.

* THE STORM WILL BE NEAR SNEADS FERRY BETWEEN 810 PM AND 815 PM.

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARVAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

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 29, 2:00 PM EDT, 6 hours 3 minutes earlier.

Area forecast discussion, Apr 29, 2:00 PM EDT, 6 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
200 PM EDT SAT APR 29 2000

WL CARRY A SLGT CHC SHRA INTO ERLY EVE GIVEN CONVECTIVE POTENTIAL UP
TO 00Z. TIME SECTS SHOW MARKED ATMOS DRYING AT ALL LVLS OVRNGHT. ETA
DEPICTING 60-70 METER HGHT RISES BTWN 850 AND 500 MB SUNDAY. GIVEN
ASSOC SUBSIDENCE AND NW FLOW TO KEEP SEA-BRZ PINNED ALG THE COAST WL
GO FLAT OUT SUNNY. NICE TEMPS SUN AND MON THAT CLOSELY REFLECT CLIMO
FOR LATE APR ERLY MAY. DRY MON WITH AFTN BRZ INCRSG AHD OF NEXT SYS
TUE. AVN AND MRF RESOLVE SYS SIMILARLY IN TAKING SFC LOW OFFSHORE N
OF DEL-MAR 12Z TUE. MRF SWEEPS FRNT THRU CWA TUE NIGHT. MSTR SEEMS
TO BE LIMITING FACTOR THIS GO AROUND BUT ENOUGH FOR SHRA IN AFTN MAY
HEATING WITH POTENTIAL SEA-BRZ INTERACTION. DRY AGAIN WED AND THU.

NICE WINDOW SUNDAY AND PART OF MON FOR MARINERS SEEKING LGT WINDS
CALMER WATERS. NW WNDS 10 TO 15 KT TNGT DIMINISHING TO LGT VRBL LATE
SUN INTO ERLY MON. WNDS RETURN SW 15 TO 20 KT AND GUSTY MON AFTN AS
ISOBARIC PACKING FOLLOWS FRNDLY BUT EXITING SFC HIGH AND SFC LOW
DEEPENS ACR THE NE SEABOARD.

.MHX...NONE.

COLBY

Nearby

Severe Thunderstorm Warnings in North Carolina, 2000 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.