Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Wakefield, VA

June 17, 2018Perquimans County, North Carolina

NWS Wakefield, VA issued this special weather statement at Jun 17, 2018, 3:08 PM EDT for Perquimans County, North Carolina. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 17, 2018, 3:08 PM EDT (19:08 UTC)
Expired: Jun 17, 2018, 4:00 PM EDT
In force: 52 min
Issued by: NWS Wakefield, VA

County Perquimans County, NC

The radar

The Norfolk radar (KAKQ), 90 km from the middle of the area, began a volume at 19:12 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, 7.1 hours before the alert went out and 166 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: 138 J/kg
Mixed-layer CIN: -80 J/kg
Mixed-layer LCL: 1060 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 17, 4:53 PM EDT	Special Weather Statement	AKQ	City of Portsmouth	52 min
Jun 17, 5:22 PM EDT	Special Weather Statement	AKQ	James City, City of Williamsburg	38 min
Jun 17, 6:08 PM EDT	Special Weather Statement	AKQ	City of Suffolk	52 min
Jun 17, 4:19 AM EDT	Coastal Flood Statement	AKQ	Dorchester, Somerset, Wicomico	3 hr
Jun 17, 7:04 PM EDT	Special Weather Statement	AKQ	Gates	41 min
Jun 17, 7:29 PM EDT	Special Weather Statement	AKQ	Hertford	46 min
Jun 17, 7:43 PM EDT	Special Weather Statement	AKQ	Camden, Pasquotank	47 min

Nearby

Special Weather Statements in North Carolina, 2018 Every special weather statement in 2018

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.