Alert archive / Maryland / Coastal Flood Statements in 2016

Coastal Flood Statement 18, NWS Wakefield, VA

August 21, 2016Dorchester County, Somerset County, Wicomico County, Maryland

NWS Wakefield, VA issued this coastal flood statement at Aug 21, 2016, 12:09 PM EDT for Dorchester County, Somerset County, Wicomico County, Maryland. It took effect at Aug 21, 2016, 2:00 PM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Aug 21, 2016, 12:09 PM EDT (16:09 UTC)
In effect from
Aug 21, 2016, 2:00 PM EDT
Expired
Aug 21, 2016, 9:00 PM EDT
In force
7 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 16:13 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, 4.2 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-pSkew-T log-p diagram, Wallops Is Stn, VA at 12:00Z on 2016-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 110 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 12:00Z on 2016-08-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
110 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
859 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 12:47 AM EDTSmall Craft AdvisoryAKQ39 hr
Aug 21, 2:07 PM EDTSpecial Weather StatementAKQPrince George38 min
Aug 21, 2:11 PM EDTSpecial Weather StatementAKQEssex, Westmoreland49 min
Aug 21, 3:04 PM EDTSpecial Weather StatementAKQNorthumberland41 min
Aug 21, 5:04 PM EDTSpecial Weather StatementAKQRichmond41 min
Aug 21, 6:01 PM EDTSpecial Weather StatementAKQNorthumberland44 min
Aug 21, 6:42 PM EDTSpecial Marine WarningAKQ78 min
Aug 21, 6:57 PM EDTSpecial Marine WarningAKQ63 min
Aug 21, 7:03 PM EDTSpecial Weather StatementAKQAccomack72 min
Aug 21, 7:17 PM EDTSpecial Marine WarningAKQ88 min
Aug 21, 7:32 PM EDTSpecial Weather StatementAKQNorthampton43 min
Aug 21, 7:38 PM EDTSpecial Marine WarningAKQ37 min
Aug 21, 3:30 PM EDTSpecial Weather StatementAKQDorchester45 min
Aug 21, 5:19 PM EDTSpecial Weather StatementAKQWorcester41 min
Aug 21, 5:32 PM EDTSpecial Weather StatementAKQDorchester43 min
Aug 21, 6:15 PM EDTSpecial Weather StatementAKQSomerset, Wicomico45 min

Nearby

Coastal Flood Statements in Maryland, 2016Every coastal flood statement in 2016

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.