Alert archive / Maryland / Coastal Flood Statements in 2017

Coastal Flood Statement 27, NWS Wakefield, VA

July 24, 2017Dorchester County, Somerset County, Wicomico County, Maryland

NWS Wakefield, VA issued this coastal flood statement at Jul 24, 2017, 4:48 PM EDT for Dorchester County, Somerset County, Wicomico County, Maryland. It took effect at Jul 25, 2017, 1:00 AM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Jul 24, 2017, 4:48 PM EDT (20:48 UTC)
In effect from: Jul 25, 2017, 1:00 AM EDT
Expired: Jul 25, 2017, 5:00 AM EDT
In force: 4 hr
Issued by: NWS Wakefield, VA

Counties Dorchester County, MD, Somerset County, MD, Wicomico County, MD

The radar

The Dover AFB radar (KDOX), 70 km from the middle of the area, began a volume at 20:51 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 12:00Z, 8.8 hours before the alert went out and 57 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: 162 J/kg
Mixed-layer CIN: -219 J/kg
Mixed-layer LCL: 1395 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 118 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this coastal flood statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

Hazardous weather outlook, Jul 23, 7:59 PM EDT, 20 hours 49 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
Jul 23, 8:24 PM EDT	Special Weather Statement	AKQ	City of Virginia Beach	51 min
Jul 23, 9:35 PM EDT	Small Craft Advisory	AKQ		3 hr
Jul 23, 9:54 PM EDT	Special Weather Statement	AKQ	Powhatan	51 min
Jul 23, 10:40 PM EDT	Special Weather Statement	AKQ	Chesterfield, Hanover, Henrico, City of Richmond	50 min
Jul 23, 11:27 PM EDT	Special Weather Statement	AKQ	Essex	48 min
Jul 23, 11:31 PM EDT	Special Weather Statement	AKQ	Henrico, King and Queen, King William, New Kent	44 min
Jul 23, 11:37 PM EDT	Special Weather Statement	AKQ	Powhatan	23 min
Jul 24, 12:02 AM EDT	Special Weather Statement	AKQ	Cumberland, Goochland, Powhatan, Prince Edward	28 min
Jul 24, 12:29 AM EDT	Special Weather Statement	AKQ	Caroline, Essex, King and Queen, King William, New Kent	46 min
Jul 24, 5:38 PM EDT	Special Weather Statement	AKQ	Louisa	37 min
Jul 24, 6:14 PM EDT	Special Weather Statement	AKQ	Goochland, Louisa	46 min
Jul 23, 8:29 PM EDT	Special Weather Statement	AKQ	Camden, Chowan, Pasquotank, Perquimans	61 min

Nearby

Coastal Flood Statements in Maryland, 2017 Every coastal flood statement in 2017

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.