Alert archive / North Carolina / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 74, NWS Newport/Morehead City, NC

August 15, 1997Onslow County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Aug 15, 1997, 1:53 PM EDT for Onslow 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 15, 1997, 1:53 PM EDT (17:53 UTC)
Expired: Aug 15, 1997, 2:30 PM EDT
In force: 37 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 17:52 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, 5.9 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: 1468 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 869 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -28 m²/s²
0-3 km storm-relative helicity: -43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 15, 9:50 AM EDT, 4 hours 3 minutes earlier.

Area forecast discussion, Aug 15, 9:50 AM EDT, 4 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
950 AM EDT FRI AUG 15 1997

ZFP: CONT PC SKIES FOR CWA. POPS MAY BE BETTER 30% FOR AREAS
AFFECTED BY SEA BRZ AND 20% ELSEWHERE. MID 80S OTR BNKS...LOW 90S FOR
AREAS CLOSE TO THE BEACH AND MID 90S EWN-NCA. UPPER 90S FAY-GSO.

CWF: CURRENT PACKAGE LOOKS GREAT FOR THE CSTL WTRS. DONT SEE
ANYTHING TO REALLY CHNG. WNDS NR SHORE WL PICK UP TO NR 20 KTS THIS
AFTERNOON AND SEAS WL RESPOND ACCORDINGLY...IE 3 TO 4 FT. BOUNDARY
PROGGED TO LIFT NORTH SWITCHING WINDS TO THE S FOR THE N WTRS.

DISC: DONT SEE MUCH TO TRIGGER SHRS/TSTMS XCPT FOR THE SEA BRZ. PWS
STILL HIGH NRLY 2 INCHES. SO LOCATIONS FORUNATE ENOUGH TO SEE PRECIP
WL LIKELY GET IT FAST AND FURIOUS. SFC TROF ONLY SLOWLY MAKING ITS
WAY TO THE CST SO DONT XPCT IT TO BE A PLAYER IN THIS AFTERNOONS WX
ALONG E NC.

.MHX...NONE.

JCI

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 1:53 AM EDT	Severe Thunderstorm Warning	MHX	Onslow	37 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1997 Every severe thunderstorm warning in 1997

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.