Alert archive / North Carolina / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 75, NWS Wilmington, NC

July 10, 2002Columbus County, North Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jul 10, 2002, 10:06 PM EDT for Columbus County, North Carolina. It was in force for 39 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 10, 2002, 10:06 PM EDT (02:06 UTC)
Expired: Jul 10, 2002, 10:45 PM EDT
In force: 39 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 02:09 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

Time	Report	Where	Remark
Jul 10, 10:15 PM EDT	Thunderstorm Wind 60 E	Lake Waccamaw, NC	Law enforcement reported trees down.

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, 2.1 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: 642 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 1209 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 130 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

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

513 
WUUS52 KILM 110206
SVRILM
NCC047-110245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
1006 PM EDT WED JUL 10 2002

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  COLUMBUS COUNTY IN SOUTHEAST NORTH CAROLINA

* UNTIL 1045 PM EDT

* AT 959 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH DAMAGING WINDS OVER LAKE WACCAMAW...OR
  ABOUT 12 MILES EAST OF WHITEVILLE...MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   RIEGLEWOOD AT 1025 PM

MORE DANGEROUS THUNDERSTORMS MAY DEVELOP AND AFFECT OTHER COMMUNITIES
IN THE WARNED AREA.

DAMAGING WINDS IN EXCESS OF 58 MPH ARE EXPECTED FROM THIS STORM. SEEK
SHELTER IN A STURDY STRUCTURE UNTIL THE STORM HAS PASSED.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN WILMINGTON NC.

.END

$$

JAQ

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 Jul 10, 2:50 PM EDT, 7 hours 16 minutes earlier.

Area forecast discussion, Jul 10, 2:50 PM EDT, 7 hours 16 minutes before

AREA FORECAST DISCUSSION..CORECTED FOR FORECAST NUMBERS
NATIONAL WEATHER SERVICE WILMINGTON NC
250 PM EDT WED JUL 10 2002

ACTIVITY BREAKING OUT QUICKER THAN EARLIER THOUGHT IN STRONG SWLY
FLOW. LOOP OF VAD PROFILE SHOWING LOW LEVEL FLOW BACKING AS
RESULTANT WIND PUSHES INLAND WHICH SHOULD ENHANCE LOWER LEVEL
CONVERGENCE. NUMEROUS POCKETS OF CONVERGENCE AND MODERATE
INSTABILITY WILL SUPPORT PULSE TYPE STRONGER STORMS. EXPECT MORE
WIDESPREAD ACTIVITY THIS EVENING AS FRONT SAGS INTO REGION
OVERNIGHT. WILL CONTINUE WITH MENTION OF SEVERE TSTMS AND ASSOCIATED
HEAVY RAINS OVERNIGHT.

MODELS SIMILAR IN PUSHING FRONT S OF REGION BY 18Z THU WITH AVN
TENDING TO LAG UVVS/PCPN SLIGHTLY. REGARDLESS THINK 50% POPS OKAY
THU. FRI MORE OF A QUESTION AS UNSEASONABLY COOL WEDGE PATTERN
DEVELOPS INLAND HOLDING TEMPS BELOW NORMAL. CONCERN IS PCPN CHANCES
AND IF SOME OVERRUNNING DEVELOPS.

EXTENDED: MODELS SIMILAR IN PUSHING COLD FRONT S OF REGION BUT
DIFFER IN EVOLUTION ON RETURN OF BOUNDARY SAT. WITH BOUNDARY IN
REGION WILL CONTINUE CHANCE SHWRS/TSTMS SAT/SUN. TREND IN MRF IS NOW
FOR UPR SYS CURRENTLY DIGGING INTO UPPER MIDWEST TO SETTLE INTO
LOWER MS VLY THEN RETROGRADE TO CENTRAL PLAINS AS RIDGE ALOFT BUILDS
INTO SERN US AGAIN. TREND WOULD SUGGEST REDUCED PCPN CHANCES WITH
TIME AS WE MOVE INTO TUE/WED.

MARINE...WIND RUNNING FROM 15 TO 20 KNOTS FROM THE SOUTHWEST WITH
SEAS RANGING FROM 2.5 TO 3.5 FEET ACROSS OUR WATERS. BOTH THE AVN
AND ETA BRING WINDS TO 20 TO 25 KNOTS FROM CAPE FEAR NORTHWARD UNTIL
THE FRONTAL PASSAGE AROUND 12Z IN OUR NORTHERN WATERS TO 15Z IN THE
SOUTH. THEN A NORTHEAST SURGE BEHIND THE FRONT ON TUESDAY WITH
NORTHEAST WINDS OF 15 TO 20 KNOTS. WILL RAISE SMALL CRAFT FROM CAPE
FEAR NORTHWARD FOR TONIGHT.

FCSTID = 1
ILM   74  81  66  81 /  70  50  40  40
LBT   72  82  64  81 /  70  50  40  40
FLO   72  85  65  82 /  70  50  40  40
MYR   74  83  67  79 /  70  50  40  40

.ILM...
NC...SMALL CRAFT ADVISORY AMZ250-252.
SC...NONE.

PUBLIC RWA
MARINE HAWKINS

In the hours before

Local storm report, Jul 10, 6:59 PM EDT, 3 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON, NC
659 PM EDT WED JUL 10 2002

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0430 PM    MAPLE HILL                NC   WIND DAMAGE
07/10/02   PENDER                         TREES DOWN. REPORTED BY
                                          PUBLIC.

JAQ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 10, 10:22 PM EDT	Severe Thunderstorm Warning	ILM	Brunswick, Pender	53 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2002 Every 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.