Alert archive / North Carolina / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 1, NWS Wilmington, NC

January 3, 1999Columbus County, North Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jan 3, 1999, 3:53 AM EST for Columbus County, North Carolina. It was in force for 47 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: Jan 3, 1999, 3:53 AM EST (08:53 UTC)
Expired: Jan 3, 1999, 4:40 AM EST
In force: 47 min
Issued by: NWS Wilmington, NC
Area: Whole counties

County Columbus County, NC

The radar

The Wilmington radar (KLTX), 37 km from the middle of the area, began a volume at 08:56 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 2, 11:00 PM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 8.9 hours before the alert went out and 172 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1196 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 272 m²/s²
0-3 km storm-relative helicity: 528 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 Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 3, 2:45 AM EST, 1 hour 8 minutes earlier.

Area forecast discussion, Jan 3, 2:45 AM EST, 1 hour 8 minutes before

AREA FORECAST DISCUSSION...UPDATED FOR HVY SURF ADV
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
245 AM EST SUN JAN 3 1999

TDY...CSTL TROF IS WELL INLAND AND SECONDARY SFC WV OVR SC SHLD MOV
NE ALONG THIS BNDRY BETWEEN NOW AND 12Z. ATMOS OVR MHX CWA IS QUITE
MILD WITH READINGS IN THE 60S. BIG AREA OF SHWRS/TSTMS OVR SC SHLD
PROPAGATE NEWD OVR THE REG EARLY THIS MORN WITH HVY DOWNPOURS AND
PSBL TSTMS. ADAP INDICATING STRNG MOIST CONVRG OVR SC AND WE SHLD
RECEIVE THIS A BIT LTR TNT. STRNG WND FIELDS IN PLACE AND HI HELICITY
VALUES JUSTIFY TOR WATCH UNTIL 5AM. THE BIG QUES IS WILL THERE BE
ENUF CAPE TO SUSTAIN GD UPDRAFTS. ANY CELLS/LINES THAT CAN GET 50DBZ
OR SO HAV A CHC TO PRODUCE WND DAMAGE WITH 60 KT WNDS FRM 1 TO 5KFT.
WILL BE WATCHING 88D CLOSELY NEXT FEW HRS. LTR THIS MORN UVM
ASSOCIATED WITH THE UPP TROF WILL SWEEP OFF THE CST TAKING ALL THE
RAIN WITH IT. RAIN SHLD RAPIDLY END FRM SW TO NE THIS MORN AND BE OFF
THE OTR BNKS BEFORE NOON. MEAN RH LOWERS ENUF FOR SOME SUN THIS AFT
AND PARTIAL CLEARING SNDS OK TO ME. HIGH TEMPS STILL MILD IN THE 60S
AS CAA NOT A BIG DEAL UNTIL TNT. TNT...DRIER AIR CONTS TO SWEEP ACRS
THE REG WITH CLR/PC SKIES. TEMPS COLDER AGAIN WITH LOWS IN THE LWR
30S...40ISH OTR BNKS. MON...NGM MORE MOIST THAN ETA/AVN...AT THIS PT
WILL FOLLOW ETA/AVN. 50H TROF AXIS STILL OVR OHIO VLY WITH SW FLOW
ALFT ACRS ERN NC. LOW LVLS SHLD BE FAIRLY DRY WITH N/NW FLOW AS SFC
HI OVR WRN GULF CST STATES INFLUENCES WX. THINK P/M SUNNY OK AT THIS
PT. TEMPS NIPPY WITH MAINLY LO/MID 40S.

CWF...WL KP GALES AS SEAS ARE HUGE OUT THERE AND SE WNDS ARE
HOWLING. CONVECTION COULD PRODUCE SOME BIG GUSTS NEW FEW HRS. WNDS
DMNSH LTR TDY AND TNT BUT SEAS WILL BE SLOW TO SUBSIDE. FPSN7 WILL
HAV SEAS APPROACHING 20 FT REAL SOON...SE WND HAS BEEN PUSHING BIG
WVS TO THE BCHS S OF HAT AND WE HAV HAD REPORTS OF EROSION. HI TIDE
THIS MORN IS ARND 800 AM WITH A VALUE OF 4.4 FT...IT WILL LIKELY BE
A FOOT OR SO ABV NORMAnL SO MORE EROSION LIKELY WITH 7-11 FT SEAS.
COORD WITH ILM.

.MHX...GALE WARN CSTL WTRS AND SNDS.
HVY SURF ADV FRM CAPE HAT S.

GATES

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 3, 3:11 AM EST	Tornado Warning	ILM	Brunswick	44 min
Jan 3, 3:49 AM EST	Tornado Warning	ILM	Brunswick, New Hanover	46 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1999 Every severe thunderstorm warning in 1999

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.