Alert archive / North Carolina / Areal Flood Advisories in 2020

Areal Flood Advisory 21, NWS Newport/Morehead City, NC

August 10, 2020Lenoir County, North Carolina

NWS Newport/Morehead City, NC issued this areal flood advisory at Aug 10, 2020, 5:54 PM EDT for Lenoir County, North Carolina. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Aug 10, 2020, 5:54 PM EDT (21:54 UTC)
Expired
Aug 10, 2020, 8:00 PM EDT
In force
2 hr
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon

County Lenoir County, NC

The radar

The Morehead City radar (KMHX), 87 km from the middle of the area, began a volume at 21:56 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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.9 hours before the alert went out and 224 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2020-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 104 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2020-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
104 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1402 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 10, 1:21 PM EDTSpecial Marine WarningMHX54 min
Aug 10, 1:53 PM EDTSpecial Weather StatementMHXPamlico37 min
Aug 10, 4:10 PM EDTAreal Flood AdvisoryMHXPitt65 min
Aug 10, 5:29 PM EDTSpecial Weather StatementMHXJones31 min
Aug 10, 6:00 PM EDTSpecial Weather StatementMHXJones45 min
Aug 10, 6:16 PM EDTAreal Flood AdvisoryMHXDuplin, Jones, Lenoir, Onslow119 min
Aug 10, 6:36 PM EDTSpecial Weather StatementMHXDuplin54 min

Nearby

Areal Flood Advisories in North Carolina, 2020Every areal flood advisory in 2020

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.