Alert archive / Delaware / Coastal Flood Statements in 2021

Coastal Flood Statement 7, NWS Philadelphia/Mount Holly

October 11, 2021Sussex County, Delaware; Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this coastal flood statement at Oct 11, 2021, 4:59 PM EDT for Sussex County, Delaware; Ocean County, New Jersey. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Oct 11, 2021, 4:59 PM EDT (20:59 UTC)
Expired
Oct 12, 2021, 5:00 PM EDT
In force
24 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Sussex County, DE, Ocean County, NJ

The radar

The Dover AFB radar (KDOX), 75 km from the middle of the area, began a volume at 20:58 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, 9.0 hours before the alert went out and 158 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 2021-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2021-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

812 
WHUS41 KPHI 112059
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
459 PM EDT Mon Oct 11 2021

DEZ003-004-NJZ020-026-121000-
/O.CAN.KPHI.CF.W.0004.000000T0000Z-211011T2100Z/
/O.NEW.KPHI.CF.S.0007.211011T2059Z-211012T1000Z/
Inland Sussex-Delaware Beaches-Ocean-Coastal Ocean-
459 PM EDT Mon Oct 11 2021

...COASTAL FLOOD WARNING IS CANCELLED. MINOR FLOODING ALONG
BARNEGAT BAY AND LITTLE ASSAWOMAN BAY INTO TONIGHT...

* WHAT...Up to one half foot of inundation above ground level in 
  low-lying areas near shorelines and tidal waterways.

* WHERE...Barnegat Bay and the tidal waterways that flow into 
  it, and Little Assawoman Bay and the tidal waterways that flow 
  into it.

* WHEN...Through late tonight.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

DEZ002-NJZ012>014-021>025-027-112200-
/O.CAN.KPHI.CF.W.0004.000000T0000Z-211011T2100Z/
Kent-Middlesex-Western Monmouth-Eastern Monmouth-Cumberland-
Atlantic-Cape May-Atlantic Coastal Cape May-Coastal Atlantic-
Southeastern Burlington-
459 PM EDT Mon Oct 11 2021

...COASTAL FLOOD WARNING IS CANCELLED...

Moderate coastal flooding has come to an end. Therefore the
Coastal Flood Warning has been cancelled. 

$$

DEZ001-NJZ016-112200-
/O.CON.KPHI.CF.Y.0012.000000T0000Z-211011T2200Z/
New Castle-Salem-
459 PM EDT Mon Oct 11 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...

* WHAT...Up to one foot of inundation above ground level in low- 
  lying areas near shorelines and tidal waterways.

* WHERE...In New Jersey, Salem. In Delaware, New Castle.

* WHEN...Until 6 PM EDT this evening.

* IMPACTS...At this level, flooding begins on the most vulnerable
  roads along tidal waterways. Some partial or full road closures
  are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory means that minor tidal flooding is
expected. Minor tidal flooding often results in some road
closures. Usually, the most vulnerable roadways will flood. 

Do not leave your vehicle at a location that is prone to tidal
flooding. Do not drive your vehicle through flood waters. The
water may be deeper than you think it is. You will be putting
yourself in danger and your vehicle may be damaged, leading to
costly repairs. 

Visit the Advanced Hydrologic Prediction Service at
water.weather.gov/ahps for additional water level and flood
impact information for your local tide gauge.

&&

Time of high total tides are approximate to the nearest hour.

Delaware River at Reedy Point
MLLW Categories - Minor 7.2 ft, Moderate 8.2 ft, Major 9.2 ft
MHHW Categories - Minor 1.4 ft, Moderate 2.4 ft, Major 3.4 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 11/04 PM     8.0        2.2       1.7      Minor    
 12/04 AM     7.0        1.2       1.8       None    
 12/05 PM     7.5        1.7       1.4      Minor    
 13/05 AM     6.2        0.4       1.1       None    
 13/06 PM     7.0        1.2       1.0       None    
 14/06 AM     5.9        0.1       0.9       None

&&

$$

NJZ017>019-PAZ070-071-106-120100-
/O.CON.KPHI.CF.Y.0012.000000T0000Z-211012T0100Z/
Gloucester-Camden-Northwestern Burlington-Delaware-Philadelphia-
Lower Bucks-
459 PM EDT Mon Oct 11 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

* WHAT...Up to one foot of inundation above ground level in low- 
  lying areas near shorelines and tidal waterways.

* WHERE...In Pennsylvania, Delaware, Philadelphia and Lower 
  Bucks. In New Jersey, Gloucester, Northwestern Burlington and 
  Camden.

* WHEN...Until 9 PM EDT this evening.

* IMPACTS...At this level, flooding begins on the most vulnerable
  roads along tidal waterways. Some partial or full road closures
  are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory means that minor tidal flooding is
expected. Minor tidal flooding often results in some road
closures. Usually, the most vulnerable roadways will flood. 

Do not leave your vehicle at a location that is prone to tidal
flooding. Do not drive your vehicle through flood waters. The
water may be deeper than you think it is. You will be putting
yourself in danger and your vehicle may be damaged, leading to
costly repairs. 

Visit the Advanced Hydrologic Prediction Service at
water.weather.gov/ahps for additional water level and flood
impact information for your local tide gauge.

&&

Time of high total tides are approximate to the nearest hour.

Delaware River at Philadelphia
MLLW Categories - Minor 8.2 ft, Moderate 9.2 ft, Major 10.2 ft
MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 3.5 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 11/06 PM     8.9        2.2       1.7      Minor    
 12/07 AM     7.5        0.8       1.5       None    
 12/07 PM     8.3        1.6       1.3      Minor    
 13/08 AM     6.9        0.2       1.0       None    
 13/08 PM     7.9        1.2       1.0       None    
 14/09 AM     6.7        0.0       0.8       None

Delaware River at Burlington
MLLW Categories - Minor 9.3 ft, Moderate 10.3 ft, Major 11.3 ft
MHHW Categories - Minor 1.6 ft, Moderate 2.6 ft, Major 3.6 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 11/07 PM    10.1        2.4       1.3      Minor    
 12/08 AM     8.8        1.1       1.3       None    
 12/08 PM     9.5        1.8       1.0      Minor    
 13/09 AM     8.1        0.4       0.8       None    
 13/09 PM     9.1        1.4       0.8       None    
 14/10 AM     7.9        0.2       0.7       None

&&

$$

BAH
4 follow-up statements
509 
WHUS41 KPHI 112155
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
555 PM EDT Mon Oct 11 2021

DEZ001-NJZ016-112300-
/O.EXP.KPHI.CF.Y.0012.000000T0000Z-211011T2200Z/
New Castle-Salem-
555 PM EDT Mon Oct 11 2021

...COASTAL FLOOD ADVISORY WILL EXPIRE AT 6 PM EDT THIS EVENING...

The tidal levels are falling and will continue to fall through
this evening. Therefore, the coastal flood advisory will be
allowed to expire at 6 PM.

$$

NJZ017>019-PAZ070-071-106-120100-
/O.CON.KPHI.CF.Y.0012.000000T0000Z-211012T0100Z/
Gloucester-Camden-Northwestern Burlington-Delaware-Philadelphia-
Lower Bucks-
555 PM EDT Mon Oct 11 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

* WHAT...Up to one foot of inundation above ground level in low- 
  lying areas near shorelines and tidal waterways.

* WHERE...In New Jersey, Gloucester, Camden and Northwestern 
  Burlington. In Pennsylvania, Delaware, Lower Bucks and 
  Philadelphia.

* WHEN...Until 9 PM EDT this evening.

* IMPACTS...At this level, flooding begins on the most vulnerable
  roads along tidal waterways. Some partial or full road closures
  are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory means that minor tidal flooding is
expected. Minor tidal flooding often results in some road
closures. Usually, the most vulnerable roadways will flood. 

Do not leave your vehicle at a location that is prone to tidal
flooding. Do not drive your vehicle through flood waters. The
water may be deeper than you think it is. You will be putting
yourself in danger and your vehicle may be damaged, leading to
costly repairs. 

Visit the Advanced Hydrologic Prediction Service at
water.weather.gov/ahps for additional water level and flood
impact information for your local tide gauge.

&&

Time of high total tides are approximate to the nearest hour.

Delaware River at Philadelphia
MLLW Categories - Minor 8.2 ft, Moderate 9.2 ft, Major 10.2 ft
MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 3.5 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 11/06 PM     8.7        2.0       1.5      Minor    
 12/07 AM     7.5        0.8       1.5       None    
 12/07 PM     8.3        1.6       1.3      Minor    
 13/08 AM     6.9        0.2       1.0       None    
 13/08 PM     7.9        1.2       1.0       None    
 14/09 AM     6.7        0.0       0.8       None

Delaware River at Burlington
MLLW Categories - Minor 9.3 ft, Moderate 10.3 ft, Major 11.3 ft
MHHW Categories - Minor 1.6 ft, Moderate 2.6 ft, Major 3.6 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 11/07 PM    10.0        2.3       1.2      Minor    
 12/08 AM     8.8        1.1       1.3       None    
 12/08 PM     9.6        1.9       1.1      Minor    
 13/09 AM     8.1        0.4       0.8       None    
 13/09 PM     9.1        1.4       0.8       None    
 14/10 AM     7.9        0.2       0.7       None

&&

$$

DEZ003-004-NJZ020-026-121000-
/O.CON.KPHI.CF.S.0007.000000T0000Z-211012T1000Z/
Inland Sussex-Delaware Beaches-Ocean-Coastal Ocean-
555 PM EDT Mon Oct 11 2021

...MINOR FLOODING ALONG BARNEGAT BAY AND LITTLE ASSAWOMAN BAY 
INTO TONIGHT...

* WHAT...Up to one half foot of inundation above ground level in 
  low-lying areas near shorelines and tidal waterways.

* WHERE...Barnegat Bay and the tidal waterways that flow into 
  it, and Little Assawoman Bay and the tidal waterways that flow 
  into it.

* WHEN...Through late tonight.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

Time of high total tides are approximate to the nearest hour.

Delaware Bay at Lewes
MLLW Categories - Minor 6.0 ft, Moderate 7.0 ft, Major 8.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 3.3 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 11/03 PM     6.4        1.8       2.0      Minor    
 12/02 AM     5.9        1.2       2.1       None    
 12/02 PM     6.6        2.0       1.6      Minor    
 13/03 AM     5.0        0.3       1.3       None    
 13/03 PM     6.1        1.5       1.2      Minor    
 14/04 AM     4.8        0.2       1.1       None

Barnegat Bay at Barnegat Light
MLLW Categories - Minor 3.5 ft, Moderate 4.5 ft, Major 5.5 ft
MHHW Categories - Minor 1.0 ft, Moderate 2.0 ft, Major 3.0 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/01 AM     3.7        1.2       1.5      Minor    
 12/01 PM     4.0        1.5       1.1      Minor    
 13/02 AM     3.0        0.5       0.9       None    
 13/02 PM     3.5        1.0       0.7      Minor    
 14/03 AM     2.8        0.3       0.7       None

&&

$$

Meola
218 
WHUS41 KPHI 120102
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
902 PM EDT Mon Oct 11 2021

NJZ017>019-PAZ070-071-106-120215-
/O.EXP.KPHI.CF.Y.0012.000000T0000Z-211012T0100Z/
Gloucester-Camden-Northwestern Burlington-Delaware-Philadelphia-
Lower Bucks-
902 PM EDT Mon Oct 11 2021

...COASTAL FLOOD ADVISORY HAS EXPIRED...

The tidal levels are falling and will continue to fall through
tonight. Therefore, the coastal flood advisory was allowed expire.

$$

DEZ003-004-NJZ020-026-121000-
/O.CON.KPHI.CF.S.0007.000000T0000Z-211012T1000Z/
Inland Sussex-Delaware Beaches-Ocean-Coastal Ocean-
902 PM EDT Mon Oct 11 2021

* WHAT...Up to one half foot of inundation above ground level in 
  low-lying areas near shorelines and tidal waterways.

* WHERE...Barnegat Bay and the tidal waterways that flow into 
  it, and Little Assawoman Bay and the tidal waterways that flow 
  into it.

* WHEN...Until 6 AM EDT Tuesday.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

Meola
488 
WHUS41 KPHI 120807
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
407 AM EDT Tue Oct 12 2021

DEZ003-004-122100-
/O.CAN.KPHI.CF.S.0007.000000T0000Z-211012T1000Z/
/O.NEW.KPHI.CF.Y.0013.211012T1600Z-211012T2100Z/
Inland Sussex-Delaware Beaches-
407 AM EDT Tue Oct 12 2021

...COASTAL FLOOD ADVISORY IN EFFECT FROM NOON TODAY TO 5 PM EDT
THIS AFTERNOON...

* WHAT...Up to one foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways.

* WHERE...Inland Sussex and Delaware Beaches.

* WHEN...From noon today to 5 PM EDT this afternoon.

* IMPACTS...At this level, flooding begins on the most 
  vulnerable roads in coastal and bayside communities, and along 
  inland tidal waterways. Some partial or full road closures are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory means that minor tidal flooding is
expected. Minor tidal flooding often results in some road
closures. Usually, the most vulnerable roadways will flood. 

Do not leave your vehicle at a location that is prone to tidal
flooding. Do not drive your vehicle through flood waters. The
water may be deeper than you think it is. You will be putting
yourself in danger and your vehicle may be damaged, leading to
costly repairs. 

Visit the Advanced Hydrologic Prediction Service at
water.weather.gov/ahps for additional water level and flood
impact information for your local tide gauge.

&&

Time of high total tides are approximate to the nearest hour.

Delaware Bay at Lewes
MLLW Categories - Minor 6.0 ft, Moderate 7.0 ft, Major 8.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 3.3 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/02 AM     5.4        0.8       1.6       None    
 12/02 PM     6.6        2.0       1.6      Minor    
 13/03 AM     5.1        0.5       1.4       None    
 13/03 PM     6.2        1.5       1.3      Minor    
 14/04 AM     4.9        0.2       1.2       None    
 14/05 PM     6.0        1.3       1.2      Minor

&&

$$

DEZ002-NJZ021>025-122100-
/O.NEW.KPHI.CF.Y.0013.211012T1600Z-211012T2100Z/
Kent-Cumberland-Atlantic-Cape May-Atlantic Coastal Cape May-
Coastal Atlantic-
407 AM EDT Tue Oct 12 2021

...COASTAL FLOOD ADVISORY IN EFFECT FROM NOON TODAY TO 5 PM EDT
THIS AFTERNOON...

* WHAT...Up to one foot of inundation above ground level 
  expected in low-lying areas near shorelines and tidal 
  waterways.

* WHERE...In New Jersey, Cumberland, Atlantic, Cape May, 
  Atlantic Coastal Cape May and Coastal Atlantic. In Delaware, 
  Kent.

* WHEN...From noon today to 5 PM EDT this afternoon.

* IMPACTS...At this level, flooding begins on the most 
  vulnerable roads in coastal and bayside communities, and along 
  inland tidal waterways. Some partial or full road closures are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory means that minor tidal flooding is
expected. Minor tidal flooding often results in some road
closures. Usually, the most vulnerable roadways will flood. 

Do not leave your vehicle at a location that is prone to tidal
flooding. Do not drive your vehicle through flood waters. The
water may be deeper than you think it is. You will be putting
yourself in danger and your vehicle may be damaged, leading to
costly repairs. 

Visit the Advanced Hydrologic Prediction Service at
water.weather.gov/ahps for additional water level and flood
impact information for your local tide gauge.

&&

Time of high total tides are approximate to the nearest hour.

Murderkill River at Bowers Beach
MLLW Categories - Minor 6.1 ft, Moderate 7.1 ft, Major 8.1 ft
MHHW Categories - Minor 0.9 ft, Moderate 1.9 ft, Major 2.9 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/03 AM     5.5        0.3       1.1       None    
 12/03 PM     6.6        1.4       0.7      Minor    
 13/04 AM     4.9       -0.3       0.6       None    
 13/04 PM     6.2        1.0       0.5      Minor    
 14/04 AM     4.7       -0.5       0.5       None    
 14/05 PM     6.0        0.8       0.4       None

Maurice River at Bivalve
MLLW Categories - Minor 7.6 ft, Moderate 8.6 ft, Major 9.6 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 3.3 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/02 AM     6.7        0.4       1.3       None    
 12/03 PM     8.0        1.7       1.5      Minor    
 13/03 AM     6.4        0.1       1.2       None    
 13/04 PM     7.5        1.2       1.2       None    
 14/04 AM     6.2       -0.1       1.2       None    
 14/05 PM     7.3        1.0       1.2       None

Atlantic Ocean at Atlantic City
MLLW Categories - Minor 6.0 ft, Moderate 7.0 ft, Major 8.0 ft
MHHW Categories - Minor 1.4 ft, Moderate 2.4 ft, Major 3.4 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/02 AM     4.6        0.0       1.2       None    
 12/01 PM     6.3        1.7       1.5      Minor    
 13/02 AM     4.7        0.1       1.1       None    
 13/02 PM     5.8        1.2       1.1       None    
 14/03 AM     4.5       -0.1       1.0       None    
 14/03 PM     5.7        1.1       1.1       None

Great Egg Harbor Bay at Ocean City
MLLW Categories - Minor 5.3 ft, Moderate 6.3 ft, Major 7.3 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 3.3 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/02 AM     4.6        0.6       1.3       None    
 12/01 PM     5.8        1.8       1.2      Minor    
 13/02 AM     4.2        0.2       0.8       None    
 13/03 PM     5.2        1.2       0.7       None    
 14/03 AM     4.1        0.1       0.8       None    
 14/04 PM     5.1        1.1       0.7       None

Cape May Harbor at Cape May
MLLW Categories - Minor 6.2 ft, Moderate 7.2 ft, Major 8.2 ft
MHHW Categories - Minor 1.1 ft, Moderate 2.1 ft, Major 3.1 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/02 AM     5.4        0.3       1.5       None    
 12/01 PM     6.8        1.7       1.5      Minor    
 13/02 AM     5.1        0.0       1.1       None    
 13/03 PM     6.3        1.2       1.1      Minor    
 14/04 AM     5.0       -0.1       1.0       None    
 14/04 PM     6.1        1.0       1.0       None

&&

$$

NJZ020-026-122100-
/O.EXT.KPHI.CF.S.0007.000000T0000Z-211012T2100Z/
Ocean-Coastal Ocean-
407 AM EDT Tue Oct 12 2021

...MINOR FLOODING ALONG BARNEGAT BAY TODAY...

* WHAT...Up to one foot of inundation above ground level in low- 
  lying areas near shorelines and tidal waterways.

* WHERE...Barnegat Bay and the tidal waterways that flow into it.

* WHEN...Through this afternoon.

* IMPACTS...At this level, flooding begins on the most 
  vulnerable roads in coastal and bayside communities, and along 
  inland tidal waterways. Some partial or full road closures are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
312 
WHUS41 KPHI 122123
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
523 PM EDT Tue Oct 12 2021

DEZ003-004-131030-
/O.EXP.KPHI.CF.Y.0013.000000T0000Z-211012T2100Z/
/O.NEW.KPHI.CF.S.0008.211012T2123Z-211013T1200Z/
Inland Sussex-Delaware Beaches-
523 PM EDT Tue Oct 12 2021

...COASTAL FLOOD ADVISORY HAS EXPIRED...

* WHAT...Up to one foot of inundation above ground level in low- 
  lying areas near shorelines and tidal waterways.

* WHERE...Little Assawoman Bay and the tidal waterways that flow 
  into it.

* WHEN...Through Wednesday morning.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

Time of high total tides are approximate to the nearest hour.

Delaware Bay at Lewes
MLLW Categories - Minor 6.0 ft, Moderate 7.0 ft, Major 8.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 3.3 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/02 PM     6.1        1.5       1.1      Minor    
 13/03 AM     4.9        0.2       1.2       None    
 13/03 PM     6.1        1.5       1.2      Minor    
 14/04 AM     4.8        0.2       1.1       None    
 14/04 PM     5.9        1.2       1.2       None    
 15/05 AM     5.0        0.3       1.2       None

&&

$$

DEZ002-NJZ021>025-122230-
/O.EXP.KPHI.CF.Y.0013.000000T0000Z-211012T2100Z/
Kent-Cumberland-Atlantic-Cape May-Atlantic Coastal Cape May-
Coastal Atlantic-
523 PM EDT Tue Oct 12 2021

...COASTAL FLOOD ADVISORY HAS EXPIRED...

The tidal levels are falling and will continue to fall through
tonight. Therefore, the coastal flood advisory was allowed expire.

$$

NJZ020-026-131030-
/O.EXP.KPHI.CF.S.0007.000000T0000Z-211012T2100Z/
/O.NEW.KPHI.CF.S.0008.211012T2123Z-211013T1200Z/
Ocean-Coastal Ocean-
523 PM EDT Tue Oct 12 2021

* WHAT...Up to one half foot of inundation above ground level in
  low-lying areas near shorelines and tidal waterways.

* WHERE...Barnegat Bay and the tidal waterways that flow into it.

* WHEN...Through Wednesday morning.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

Time of high total tides are approximate to the nearest hour.

Barnegat Bay at Barnegat Light
MLLW Categories - Minor 3.5 ft, Moderate 4.5 ft, Major 5.5 ft
MHHW Categories - Minor 1.0 ft, Moderate 2.0 ft, Major 3.0 ft

             Total      Total    Departure          
 Day/Time    Tide       Tide     from Norm   Flood  
            ft MLLW    ft MHHW       ft      Impact 
 --------  ---------  ---------  ---------  --------
 12/01 PM     3.6        1.1       0.7      Minor    
 13/02 AM     2.9        0.4       0.8       None    
 13/03 PM     3.5        1.0       0.8      Minor    
 14/03 AM     2.8        0.3       0.7       None    
 14/04 PM     3.5        1.0       0.8      Minor    
 15/04 AM     2.9        0.4       0.7       None

&&

$$

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 11, 3:10 AM EDTSmall Craft AdvisoryPHI58 hr

Nearby

Coastal Flood Statements in Delaware, 2021Coastal Flood Statements in New Jersey, 2021Every coastal flood statement 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.