Alert archive / Maryland / Coastal Flood Statements in 2017

Coastal Flood Statement 21, NWS Wakefield, VA

May 28, 20174 counties in Maryland; 4 counties in Virginia

NWS Wakefield, VA issued this coastal flood statement at May 28, 2017, 9:53 PM EDT for 4 counties in Maryland; 4 counties in Virginia. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
May 28, 2017, 9:53 PM EDT (01:53 UTC)
Expired
May 29, 2017, 8:00 AM EDT
In force
10 hr
Issued by
NWS Wakefield, VA

Counties Dorchester County, MD, Somerset County, MD, Wicomico County, MD, Worcester County, MD, Accomack County, VA, Lancaster County, VA, Northumberland County, VA, Westmoreland County, VA

The radar

The Dover AFB radar (KDOX), 99 km from the middle of the area, began a volume at 01:56 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, 1.9 hours before the alert went out and 58 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 00:00Z on 2017-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2017-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
513 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

345 
WHUS41 KAKQ 290153
CFWAKQ

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE WAKEFIELD VA
953 PM EDT SUN MAY 28 2017


MDZ021>023-291000-
/O.NEW.KAKQ.CF.S.0021.170529T0600Z-170529T1200Z/
DORCHESTER-WICOMICO-SOMERSET-
953 PM EDT SUN MAY 28 2017

...WATER LEVELS TO APPROACH MINOR FLOOD THRESHOLDS...

* LOCATION...BAYSIDE OF MARYLAND EASTERN SHORE INCLUDING TIDAL 
  TRIBUTARIES.

* TIMING...WITHIN ABOUT 2 HOURS EITHER SIDE OF THE UPCOMING HIGH TIDE
  CYCLE EARLY MONDAY MORNING. 

* COASTAL FLOOD IMPACTS...MINOR FLOODING POSSIBLE IN THE MOST VULNERABLE
  LOCATIONS ADJACENT TO THE WATERFRONT AND SHORELINE.



&&

TIME OF HIGH TOTAL TIDES ARE APPROXIMATE TO THE NEAREST HOUR.

CAMBRIDGE MD
MLLW CATEGORIES - MINOR 3.5 FT, MODERATE 4.0 FT, MAJOR 4.5 FT
MHHW CATEGORIES - MINOR 1.5 FT, MODERATE 2.0 FT, MAJOR 2.5 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 28/09 PM     2.4        0.4        0.9        1       NONE    
 29/08 AM     3.2        1.2        0.8        1       NONE    
 29/08 PM     2.5        0.5        0.7        1       NONE    
 30/08 AM     3.0        1.0        0.8        1       NONE    
 30/09 PM     2.6        0.6        0.8        1       NONE    
 31/09 AM     2.8        0.8        0.7        1       NONE

BISHOPS HEAD MD
MLLW CATEGORIES - MINOR 3.3 FT, MODERATE 3.8 FT, MAJOR 4.3 FT
MHHW CATEGORIES - MINOR 1.2 FT, MODERATE 1.7 FT, MAJOR 2.2 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 29/05 AM     3.4        1.3        0.8        1      MINOR    
 29/05 PM     2.9        0.8        0.8        1       NONE    
 30/05 AM     3.3        1.2        0.9        1      MINOR    
 30/06 PM     3.0        0.9        0.9        1       NONE    
 31/06 AM     3.1        1.0        0.8        1       NONE    
 31/07 PM     2.7        0.6        0.6        1       NONE

SAXIS VA

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 29/03 AM     3.8        1.3        0.8        1               
 29/04 PM     3.2        0.7        0.8        1               
 30/04 AM     3.6        1.1        0.8        1               
 30/05 PM     3.2        0.7        0.9        1               
 31/05 AM     3.5        1.0        0.9        1               
 31/06 PM     2.9        0.4        0.6        1

$$

VAZ075-077-078-291000-
/O.NEW.KAKQ.CF.S.0021.170529T0600Z-170529T1200Z/
WESTMORELAND-NORTHUMBERLAND-LANCASTER-
953 PM EDT SUN MAY 28 2017

...WATER LEVELS TO APPROACH MINOR FLOOD THRESHOLDS...

* LOCATION...VIRGINIA NORTHERN NECK ALONG THE BAY...POTOMAC RIVER AND
  TIDAL TRIBUTARIES.

* TIMING...WITHIN ABOUT 2 HOURS EITHER SIDE OF THE UPCOMING HIGH TIDE
  CYCLE EARLY MONDAY MORNING. 

* COASTAL FLOOD IMPACTS...MINOR FLOODING POSSIBLE IN THE MOST VULNERABLE
  LOCATIONS ADJACENT TO THE WATERFRONT AND SHORELINE.



&&

TIME OF HIGH TOTAL TIDES ARE APPROXIMATE TO THE NEAREST HOUR.

LEWISETTA VA
MLLW CATEGORIES - MINOR 3.0 FT, MODERATE 3.5 FT, MAJOR 4.0 FT
MHHW CATEGORIES - MINOR 1.5 FT, MODERATE 2.0 FT, MAJOR 2.5 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 29/04 AM     2.8        1.3        1.1        1       NONE    
 29/05 PM     2.2        0.7        0.8        1       NONE    
 30/06 AM     2.6        1.1        0.9        1       NONE    
 30/06 PM     2.3        0.8        0.9        1       NONE    
 31/07 AM     2.4        0.9        0.8        1       NONE    
 31/07 PM     2.0        0.5        0.6        1       NONE

WINDMILL POINT VA
MLLW CATEGORIES - MINOR 3.0 FT, MODERATE 3.5 FT, MAJOR 4.0 FT
MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 2.1 FT, MAJOR 2.6 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 29/02 AM     2.6        1.2        1.1        1       NONE    
 29/03 PM     2.0        0.6        0.8        1       NONE    
 30/03 AM     2.2        0.8        0.8        1       NONE    
 30/04 PM     2.1        0.7        0.9        1       NONE    
 31/04 AM     2.1        0.7        0.8        1       NONE    
 31/05 PM     1.8        0.4        0.6        1       NONE

$$

MDZ024-025-VAZ099-290700-
/O.NEW.KAKQ.CF.S.0021.170529T0153Z-170529T0700Z/
INLAND WORCESTER-MARYLAND BEACHES-ACCOMACK-
953 PM EDT SUN MAY 28 2017

...WATER LEVELS TO APPROACH MINOR FLOOD THRESHOLDS...

* LOCATION...AREAS ALONG THE COAST...INCLUDING INLETS AND BAYS FROM OCEAN CITY
  MARYLAND TO PARRAMORE ISLAND 

* TIMING...THROUGH THE CURRENT HIGH TIDE CYCLE ENDING SHORTLY AFTER MIDNIGHT.

* COASTAL FLOOD IMPACTS...MINOR FLOODING POSSIBLE IN THE MOST VULNERABLE
  LOCATIONS ADJACENT TO THE WATERFRONT AND SHORELINE.



&&

TIME OF HIGH TOTAL TIDES ARE APPROXIMATE TO THE NEAREST HOUR.

OCEAN CITY INLET MD
MLLW CATEGORIES - MINOR 4.0 FT, MODERATE 5.0 FT, MAJOR 6.0 FT
MHHW CATEGORIES - MINOR 1.5 FT, MODERATE 2.0 FT, MAJOR 2.5 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 28/11 PM     3.9        1.4        0.9       3-4      NONE    
 29/12 PM     3.4        0.9        1.0        2       NONE    
 30/12 AM     3.9        1.4        1.0        2       NONE    
 30/12 PM     3.2        0.7        0.9        2       NONE    
 31/01 AM     3.3        0.8        0.6        2       NONE    
 31/01 PM     2.8        0.3        0.5        2       NONE

CHINCOTEAGUE INLET VA
MLLW CATEGORIES - MINOR 4.5 FT, MODERATE 5.0 FT, MAJOR 6.0 FT
MHHW CATEGORIES - MINOR 1.7 FT, MODERATE 2.2 FT, MAJOR 3.2 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 28/11 PM     4.4        1.6        1.0        1       NONE    
 29/12 PM     3.5        0.7        1.0        1       NONE    
 30/12 AM     4.2        1.4        1.0        1       NONE    
 30/01 PM     3.4        0.6        1.0        1       NONE    
 31/01 AM     3.7        0.9        0.8        1       NONE    
 31/02 PM     2.9        0.1        0.6        1       NONE

WACHAPREAGUE VA
MLLW CATEGORIES - MINOR 6.5 FT, MODERATE 7.5 FT, MAJOR 8.0 FT
MHHW CATEGORIES - MINOR 2.0 FT, MODERATE 3.0 FT, MAJOR 3.5 FT

             TOTAL      TOTAL    DEPARTURE                   
 DAY/TIME    TIDE       TIDE     FROM NORM   WAVES    FLOOD  
            FT MLLW    FT MHHW       FT        FT     IMPACT 
 --------  ---------  ---------  ---------  -------  --------
 29/12 AM     6.3        1.8        1.0        1       NONE    
 29/12 PM     5.1        0.6        1.0        1       NONE    
 30/01 AM     6.0        1.5        1.0        1       NONE    
 30/01 PM     5.0        0.5        1.0        1       NONE    
 31/02 AM     5.6        1.1        0.9        1       NONE    
 31/02 PM     4.6        0.1        0.7        1       NONE

$$

BROWN

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 4:39 PM EDTCoastal Flood AdvisoryAKQWorcester9 hr
May 29, 4:39 PM EDTCoastal Flood AdvisoryAKQDorchester, Somerset, Wicomico17 hr
May 29, 4:39 PM EDTCoastal Flood StatementAKQAccomack, James City, Northampton, Surry, York, City of Chesapeake and 4 more13 hr
May 29, 4:39 PM EDTCoastal Flood StatementAKQLancaster, Northumberland, Westmoreland14 hr
May 29, 7:02 PM EDTSpecial Weather StatementAKQNorthumberland, Richmond43 min
May 29, 7:09 PM EDTSevere Thunderstorm WarningAKQNorthumberland, Richmond, Westmoreland39 min
May 29, 7:15 PM EDTSpecial Weather StatementAKQEssex45 min
May 29, 7:50 PM EDTSpecial Weather StatementAKQNorthumberland40 min
May 29, 7:51 PM EDTSevere Thunderstorm WarningAKQEssex, Lancaster, Middlesex, Richmond39 min

Nearby

Coastal Flood Statements in Maryland, 2017Coastal Flood Statements in Virginia, 2017Every 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.