Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 143, NWS Wilmington, NC
NWS Wilmington, NC issued this severe thunderstorm warning at Aug 19, 1998, 4:36 PM EDT for Brunswick County, North Carolina. It was in force for 34 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 19, 1998, 4:36 PM EDT (20:36 UTC)
- Expired
- Aug 19, 1998, 5:10 PM EDT
- In force
- 34 min
- Issued by
- NWS Wilmington, NC
- Area
- Whole counties
County Brunswick County, NC
The radar
The Wilmington radar (KLTX), 19 km from the middle of the area, began a volume at 20:35 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, 8.6 hours before the alert went out and 149 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.
- Mixed-layer CAPE
- 797 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1194 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 19, 2:30 PM EDT, 2 hours 6 minutes earlier.
Area forecast discussion, Aug 19, 2:30 PM EDT, 2 hours 6 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WILMINGTON NC 230 PM EDT WED AUG 19 1998 RAH/CAE: SLGT CHC EVE TRW MAINLY GRD STRND THEN PTCLDY TNGT. AM CLDS THEN MOSNY THU. SKC/MOCLR THU NGT THEN MOSNY AGN FRI. COOLER W/ RDGS IN 60S BOTH NITES (NR 70 TNGT FOR N CST) & 80S BOTH DAYS (XCPT SUM 90S PEE DEE). CDFNT NOW ACRS NRN CWA & CONTG ITS PUSH ACRS AREA. ADAP SHOWS SMALLER PRES RISES BHND FNT & SEABRZ ACRS GRD STRND MAY INHIBIT ITS SWD PUSH SOME. BUT SUSPECT IT SHUD PUSH COMPLETELY THRU CWA BY EVE. MAY STILL SEE SOME ISOL TRW DEVELOPMENT MAINLY ACRS NERN SC THIS EVE W/ BDRYS..HTG & MOIST CONVG. CONT A SLGT POP HERE. STORY OF THIS FCST PD IS THE RDG BLDG IN SFC/ALF USHERING IN MUCH DRIER AIR. UPR TROF MVG OFF E CST TNGT W/ A S/WV/VORTLOBE SKIRTING AREA TO THE NE. MDLS PROG LTL/NO UVM W/ THIS + WV IMGRY SHOWS DRIER AIR SCREAMING TWD AREA ANYWAY. FOUS DATA BRINGS MEAN RH/S INTO 20 PCNT RANGE FOR LAST 5 PDS AT ILM. BIGGEST PROB WL BE TRAPPED MOISTURE BLO H8 TNGT WHICH COMBO W/ NELY FLOW CUD SOCK US IN W/ SCU FOR AWHILE. AS THE SFC HI BLDS SWD OVR ERN SEABD & UPR RDG MVS IN EARLY TMRW SUBSIDENCE SHUD ERODE SCU & SUN WL BE PLENTY NEXT 2 DAYS. MOS TEMPS IN GD AGREEMENT THRU TMRW & WL ACCEPT. DECENT RAD CONDS THU NGT MAKE ME LN TWD COOLER FWC NUMBERS. MOS NUMBERS FINE FOR FRI. CWF: ELY FLOW ALG BCHS NOW W/ SPDS 10-15. GUID LEANS TWD MAINLY NE WINDS THRU THE PD W/ THE HI SETTLING OVR US. WINDS LIKELY TURN E OR JUST GO VRB ON FRI W/ RDG AXIS OVR US. BEST SPDS COME TNGT W/ COLD AIR SETTLING OVR US BUT GUID DEPICTS REMAINING BLO SCA CRIT. WL HOLD WINDS AT 20 KT N OF LTL RVR...LESS BLO. ILM BU 068/085 065/085 068 200 FLO BU 068/089 064/090 068 100 LGE
The office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 5:05 PM EDT | Flash Flood Warning | ILM | Brunswick, New Hanover | 95 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 1998Every severe thunderstorm warning in 1998
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.