Alert archive / Maryland / Coastal Flood Advisories in 2021

Coastal Flood Advisory 21, NWS Wakefield, VA

October 16, 2021Dorchester County, Maryland

NWS Wakefield, VA issued this coastal flood advisory at Oct 16, 2021, 4:53 AM EDT for Dorchester County, Maryland. It took effect at Oct 16, 2021, 7:04 AM EDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Oct 16, 2021, 4:53 AM EDT (08:53 UTC)
In effect from: Oct 16, 2021, 7:04 AM EDT
Expired: Oct 16, 2021, 4:00 PM EDT
In force: 9 hr
Issued by: NWS Wakefield, VA

County Dorchester County, MD

The radar

The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 08:50 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 8.9 hours before the alert went out and 81 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: 1594 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: -14 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 Wakefield, VA wrote its last area forecast discussion before this coastal flood advisory went out at Oct 16, 4:07 AM EDT, 46 minutes earlier.

Area forecast discussion, Oct 16, 4:07 AM EDT, 46 minutes before

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Hazardous weather outlook, Oct 16, 4:12 AM EDT, 41 minutes before

Hazardous Weather Outlook
National Weather Service Wakefield VA
412 AM EDT Sat Oct 16 2021

MDZ021>025-NCZ012>017-030>032-102-VAZ048-060>062-064>069-075>090-092-
093-095>100-509>525-170815-
Dorchester-Wicomico-Somerset-Inland Worcester-Maryland Beaches-
Northampton-Hertford-Gates-Pasquotank-Camden-Western Currituck-
Bertie-Chowan-Perquimans-Eastern Currituck-Fluvanna-Prince Edward-
Cumberland-Goochland-Caroline-Mecklenburg-Lunenburg-Nottoway-Amelia-
Powhatan-Westmoreland-Richmond-Northumberland-Lancaster-Brunswick-
Dinwiddie-Prince George-Charles City-New Kent-Gloucester-Middlesex-
Mathews-Greensville-Sussex-Surry-James City-Southampton-
Isle of Wight-Norfolk/Portsmouth-Suffolk-Chesapeake-Virginia Beach-
Accomack-Western Louisa-Eastern Louisa-Western Hanover-
Eastern Hanover-Western Chesterfield-
Eastern Chesterfield (Including Col. Heights)-
Western Henrico (Including the City of Richmond)-Eastern Henrico-
Western King William-Eastern King William-Western King and Queen-
Eastern King and Queen-Western Essex-Eastern Essex-York-Newport News-
Hampton/Poquoson-
412 AM EDT Sat Oct 16 2021

This Hazardous Weather Outlook is for southeast Maryland, northeast
North Carolina, central Virginia, east central Virginia, eastern
Virginia, north central Virginia, south central Virginia and
southeast Virginia.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 16, 4:53 AM EDT	Coastal Flood Statement	AKQ	Lancaster, Northumberland, Westmoreland	9 hr
Oct 16, 7:03 AM EDT	Small Craft Advisory	AKQ		72 hr
Oct 16, 3:28 PM EDT	Special Weather Statement	AKQ	Essex, Richmond, Westmoreland	47 min
Oct 16, 3:33 PM EDT	Special Weather Statement	AKQ	Charles City, Dinwiddie, Henrico, King and Queen, King William, New Kent and 4 more	42 min
Oct 16, 3:48 PM EDT	Special Marine Warning	AKQ		57 min
Oct 16, 3:52 PM EDT	Special Marine Warning	AKQ		113 min
Oct 16, 4:09 PM EDT	Special Weather Statement	AKQ	Lancaster, Northumberland, Richmond, Westmoreland	51 min
Oct 16, 4:13 PM EDT	Special Weather Statement	AKQ	Charles City, Gloucester, James City, Mathews, Middlesex, New Kent and 6 more	47 min
Oct 16, 4:54 PM EDT	Special Weather Statement	AKQ	Gloucester, Isle of Wight, James City, Lancaster, Mathews, Middlesex and 9 more	66 min
Oct 16, 5:43 PM EDT	Special Marine Warning	AKQ		62 min
Oct 16, 5:58 PM EDT	Special Marine Warning	AKQ		2 hr
Oct 16, 6:26 PM EDT	Special Marine Warning	AKQ		94 min
Oct 16, 6:39 PM EDT	Special Marine Warning	AKQ		51 min
Oct 16, 7:10 PM EDT	Coastal Flood Statement	AKQ	Accomack, Northampton	6 hr
Oct 16, 4:23 PM EDT	Special Weather Statement	AKQ	Dorchester	52 min
Oct 16, 4:52 PM EDT	Special Weather Statement	AKQ	Somerset, Wicomico	38 min
Oct 16, 5:32 PM EDT	Special Weather Statement	AKQ	Somerset	28 min
Oct 16, 6:02 PM EDT	Special Weather Statement	AKQ	Worcester	28 min

Nearby

Coastal Flood Advisories in Maryland, 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.