Alert archive / Virginia / High Surf Advisories in 2011

High Surf Advisory 1, NWS Wakefield, VA

April 16, 2011Accomack County, Northampton County, Virginia; Worcester County, Maryland

NWS Wakefield, VA issued this high surf advisory at Apr 16, 2011, 4:32 AM EDT for Accomack County, Northampton County, Virginia; Worcester County, Maryland. It took effect at Apr 16, 2011, 12:00 PM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Apr 16, 2011, 4:32 AM EDT (08:32 UTC)
In effect from: Apr 16, 2011, 12:00 PM EDT
Expired: Apr 17, 2011, 12:00 AM EDT
In force: 12 hr
Issued by: NWS Wakefield, VA

Counties Worcester County, MD, Accomack County, VA, Northampton County, VA

The radar

The Dover AFB radar (KDOX), 120 km from the middle of the area, began a volume at 08:32 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

Washington/Dulle, VA (KIAD), launched 00:00Z, 8.5 hours before the alert went out and 201 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: 1033 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 195 m²/s²
0-3 km storm-relative helicity: 388 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 Apr 16, 1:57 AM EDT, 2 hours 35 minutes earlier.

Area forecast discussion, Apr 16, 1:57 AM EDT, 2 hours 35 minutes before

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Hazardous weather outlook, Apr 15, 11:20 PM EDT, 5 hours 12 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
Apr 15, 10:55 PM EDT	Coastal Flood Watch	AKQ	Accomack, Lancaster, Middlesex, Northumberland, Richmond, Westmoreland	16 hr
Apr 16, 7:05 AM EDT	Coastal Flood Advisory	AKQ	Accomack, Lancaster, Middlesex, Northumberland, Richmond, Westmoreland	23 hr
Apr 16, 2:33 PM EDT	Special Weather Statement	AKQ	Lunenburg, Mecklenburg, Nottoway, Prince Edward	42 min
Apr 16, 3:08 PM EDT	Tornado Warning	AKQ	Lunenburg, Mecklenburg	37 min
Apr 16, 3:22 PM EDT	Tornado Warning	AKQ	Lunenburg, Mecklenburg	23 min
Apr 16, 3:26 PM EDT	Severe Thunderstorm Warning	AKQ	Amelia, Cumberland, Lunenburg, Nottoway, Powhatan, Prince Edward	49 min
Apr 16, 3:43 PM EDT	Severe Thunderstorm Warning	AKQ	Amelia, Brunswick, Dinwiddie, Lunenburg, Mecklenburg, Nottoway	47 min
Apr 16, 3:44 PM EDT	Tornado Warning	AKQ	Brunswick, Lunenburg, Nottoway	31 min
Apr 16, 4:03 PM EDT	Tornado Warning	AKQ	Amelia, Brunswick, Dinwiddie, Lunenburg, Nottoway	27 min
Apr 16, 4:12 PM EDT	Tornado Warning	AKQ	Brunswick, Lunenburg, Mecklenburg	33 min
Apr 16, 4:23 PM EDT	Severe Thunderstorm Warning	AKQ	Amelia, Brunswick, Chesterfield, Dinwiddie, Hanover, Henrico and 6 more	52 min
Apr 16, 4:25 PM EDT	Tornado Warning	AKQ	Brunswick, Mecklenburg	35 min
Apr 16, 4:32 PM EDT	Tornado Warning	AKQ	Fluvanna, Goochland, Louisa	28 min
Apr 16, 4:36 PM EDT	Tornado Warning	AKQ	Charles City, Chesterfield, Dinwiddie, Henrico, Prince George, City of Colonial Heights and 2 more	24 min
Apr 16, 4:48 PM EDT	Severe Thunderstorm Warning	AKQ	Lunenburg, Mecklenburg	15 min
Apr 16, 4:56 PM EDT	Tornado Warning	AKQ	Charles City, Chesterfield, Dinwiddie, Henrico, New Kent, Prince George and 3 more	34 min
Apr 16, 5:01 PM EDT	Severe Thunderstorm Warning	AKQ	Brunswick, Dinwiddie, Greensville, Sussex	17 min
Apr 16, 5:12 PM EDT	Tornado Warning	AKQ	Brunswick, Greensville	33 min
Apr 16, 5:32 PM EDT	Severe Thunderstorm Warning	AKQ	Chesterfield, Goochland, Hanover, Henrico, Louisa, Powhatan	28 min
Apr 16, 5:38 PM EDT	Severe Thunderstorm Warning	AKQ	Greensville, Southampton, Sussex, City of Emporia	22 min
Apr 16, 5:43 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Essex, Gloucester, James City, King and Queen, King William and 6 more	47 min
Apr 16, 5:54 PM EDT	Tornado Warning	AKQ	Southampton, Sussex	25 min
Apr 16, 5:55 PM EDT	Severe Thunderstorm Warning	AKQ	Caroline, Hanover, Louisa	14 min
Apr 16, 6:09 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, Southampton, Surry, Sussex	37 min
Apr 16, 6:11 PM EDT	Tornado Warning	AKQ	Isle of Wight, Southampton, Surry, Sussex	34 min
Apr 16, 6:35 PM EDT	Tornado Warning	AKQ	Isle of Wight, Southampton, City of Franklin, City of Suffolk	25 min
Apr 16, 6:39 PM EDT	Severe Thunderstorm Warning	AKQ	Charles City, Gloucester, Isle of Wight, James City, King and Queen, New Kent and 4 more	36 min
Apr 16, 6:41 PM EDT	Severe Thunderstorm Warning	AKQ	Lancaster, Northumberland	49 min
Apr 16, 6:54 PM EDT	Tornado Warning	AKQ	Gloucester, James City, Surry, York, City of Newport News	24 min
Apr 16, 7:03 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, Southampton, York, City of Franklin, City of Hampton, City of Newport News and 1 more	42 min
Apr 16, 7:12 PM EDT	Tornado Warning	AKQ	Gloucester, Lancaster, Mathews, Middlesex	33 min
Apr 16, 7:17 PM EDT	Special Marine Warning	AKQ		43 min
Apr 16, 7:25 PM EDT	Tornado Warning	AKQ	Isle of Wight, York, City of Hampton, City of Newport News, City of Poquoson	35 min
Apr 16, 7:29 PM EDT	Tornado Warning	AKQ	City of Chesapeake, City of Suffolk	31 min
Apr 16, 7:47 PM EDT	Severe Thunderstorm Warning	AKQ	Isle of Wight, Southampton, City of Franklin, City of Suffolk	28 min
Apr 16, 7:50 PM EDT	Tornado Warning	AKQ	City of Chesapeake, City of Norfolk, City of Virginia Beach	25 min
Apr 16, 7:55 PM EDT	Special Marine Warning	AKQ		65 min
Apr 16, 6:35 PM EDT	Tornado Warning	AKQ	Bertie	40 min
Apr 16, 7:06 PM EDT	Tornado Warning	AKQ	Bertie, Chowan, Gates, Hertford	39 min
Apr 16, 7:19 PM EDT	Tornado Warning	AKQ	Bertie	26 min
Apr 16, 7:45 PM EDT	Tornado Warning	AKQ	Bertie, Chowan	30 min
Apr 16, 4:32 AM EDT	Coastal Flood Warning	AKQ	Worcester	10 hr
Apr 16, 3:01 PM EDT	Coastal Flood Warning	AKQ	Dorchester, Somerset, Wicomico	18 hr
Apr 16, 7:49 PM EDT	Severe Thunderstorm Warning	AKQ	Somerset, Wicomico	26 min

Nearby

High Surf Advisories in Virginia, 2011 High Surf Advisories in Maryland, 2011 Every high surf advisory in 2011

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.