Alert archive / North Carolina / Flash Flood Warnings in 1999

Flash Flood Warning 11, NWS Wilmington, NC

August 30, 1999Brunswick County, New Hanover County, North Carolina

NWS Wilmington, NC issued this flash flood warning at Aug 30, 1999, 2:02 AM EDT for Brunswick County, New Hanover County, North Carolina. It was in force for 3 hr. 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 30, 1999, 2:02 AM EDT (06:02 UTC)
Expired: Aug 30, 1999, 5:00 AM EDT
In force: 3 hr
Issued by: NWS Wilmington, NC
Area: Whole counties

Counties Brunswick County, NC, New Hanover County, NC

The radar

The Wilmington radar (KLTX), 38 km from the middle of the area, began a volume at 06:02 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, 6.0 hours before the alert went out and 130 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: 1325 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 720 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 116 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.3

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 flash flood 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 flash flood warning went out at Aug 29, 10:11 PM EDT, 3 hours 51 minutes earlier.

Area forecast discussion, Aug 29, 10:11 PM EDT, 3 hours 51 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 3:31 AM EDT	Flash Flood Warning	ILM	Pender	89 min
Aug 30, 3:31 AM EDT	Flash Flood Warning	ILM	Pender	2 hr
Aug 30, 4:57 AM EDT	Flash Flood Warning	ILM	Brunswick, New Hanover, Pender	3 hr

Nearby

Flash Flood Warnings in North Carolina, 1999 Every flash flood 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.