Alert archive / North Carolina / Coastal Flood Advisories in 2021

Coastal Flood Advisory 49, NWS Wilmington, NC

June 12, 2021New Hanover County, North Carolina

NWS Wilmington, NC issued this coastal flood advisory at Jun 12, 2021, 3:21 PM EDT for New Hanover County, North Carolina. It took effect at Jun 12, 2021, 10:00 PM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jun 12, 2021, 3:21 PM EDT (19:21 UTC)
In effect from: Jun 12, 2021, 10:00 PM EDT
Expired: Jun 13, 2021, 2:00 AM EDT
In force: 4 hr
Issued by: NWS Wilmington, NC

County New Hanover County, NC

The radar

The Wilmington radar (KLTX), 56 km from the middle of the area, began a volume at 19:24 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

Charleston AFB, SC (KCHS), launched 12:00Z, 7.4 hours before the alert went out and 244 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: 313 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 790 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this coastal flood advisory 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 coastal flood advisory went out at Jun 12, 1:28 PM EDT, 1 hour 53 minutes earlier.

Area forecast discussion, Jun 12, 1:28 PM EDT, 1 hour 53 minutes before

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Hazardous weather outlook, Jun 12, 10:45 AM EDT, 4 hours 36 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 11:23 PM EDT	Special Weather Statement	ILM	Columbus	52 min
Jun 12, 7:02 PM EDT	Areal Flood Advisory	ILM	Florence, Marion	88 min

Nearby

Coastal Flood Advisories in North Carolina, 2021 Every coastal flood advisory in 2021

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.