Alert archive / Virginia / High Surf Advisories in 2020

High Surf Advisory 13, NWS Wakefield, VA

November 30, 2020Accomack County, Virginia; Worcester County, Maryland

NWS Wakefield, VA issued this high surf advisory at Nov 30, 2020, 5:10 AM EST for Accomack County, Virginia; Worcester County, Maryland. It took effect at Nov 30, 2020, 10:00 AM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Nov 30, 2020, 5:10 AM EST (10:10 UTC)
In effect from: Nov 30, 2020, 10:00 AM EST
Expired: Nov 30, 2020, 9:53 PM EST
In force: 12 hr
Issued by: NWS Wakefield, VA

Counties Worcester County, MD, Accomack County, VA

The radar

The Dover AFB radar (KDOX), 93 km from the middle of the area, began a volume at 10:10 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

Roanoke, VA (KRNK), launched 00:00Z, 10.2 hours before the alert went out and 361 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1351 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 175 m²/s²
0-3 km storm-relative helicity: 165 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 high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wakefield, VA wrote its last area forecast discussion before this high surf advisory went out at Nov 29, 4:00 PM EST, 13 hours 10 minutes earlier.

Area forecast discussion, Nov 29, 4:00 PM EST, 13 hours 10 minutes before

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Hazardous weather outlook, Nov 29, 4:05 PM EST, 13 hours 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 30, 5:10 AM EST	Coastal Flood Statement	AKQ	Accomack, Northampton, Northumberland, Westmoreland	8 hr
Nov 30, 12:27 PM EST	Special Weather Statement	AKQ	Chesterfield, Hanover, Henrico, City of Richmond	33 min
Nov 30, 1:14 PM EST	Special Weather Statement	AKQ	Essex, Westmoreland	46 min
Nov 30, 1:28 PM EST	Special Weather Statement	AKQ	King and Queen, Richmond	32 min
Nov 30, 1:38 PM EST	Severe Thunderstorm Warning	AKQ	Essex, King and Queen, Richmond, Westmoreland	22 min
Nov 30, 2:09 PM EST	Special Weather Statement	AKQ	King and Queen	36 min
Nov 30, 2:57 PM EST	Special Marine Warning	AKQ		63 min
Nov 30, 3:11 PM EST	Special Weather Statement	AKQ	Gloucester, James City, King and Queen, York, City of Hampton, City of Newport News and 2 more	49 min
Nov 30, 4:26 PM EST	Special Weather Statement	AKQ	Accomack	49 min
Nov 30, 4:31 PM EST	Special Weather Statement	AKQ	City of Chesapeake, City of Norfolk, City of Virginia Beach	59 min
Nov 30, 5:10 AM EST	Coastal Flood Advisory	AKQ	Camden, Chowan, Currituck, Pasquotank, Perquimans	12 hr
Nov 30, 7:58 AM EST	Special Weather Statement	AKQ	Currituck	32 min
Nov 30, 2:26 PM EST	Special Weather Statement	AKQ	Dorchester	34 min
Nov 30, 3:22 PM EST	Special Weather Statement	AKQ	Dorchester	38 min
Nov 30, 4:12 PM EST	Special Weather Statement	AKQ	Dorchester, Somerset, Wicomico	48 min
Nov 30, 5:00 PM EST	Special Weather Statement	AKQ	Wicomico, Worcester	45 min

Nearby

High Surf Advisories in Virginia, 2020 High Surf Advisories in Maryland, 2020 Every high surf 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.