Alert archive / New Jersey / Coastal Flood Statements in 2021

Coastal Flood Statement 3, NWS Philadelphia/Mount Holly

February 3, 2021Ocean County, New Jersey; Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood statement at Feb 3, 2021, 4:06 AM EST for Ocean County, New Jersey; Sussex County, Delaware. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Feb 3, 2021, 4:06 AM EST (09:06 UTC)
Expired
Feb 3, 2021, 7:00 PM EST
In force
15 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 09:05 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, 9.1 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 00:00Z on 2021-02-03Temperature 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 00:00Z on 2021-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 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
573 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

346 
WHUS41 KPHI 030906
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
406 AM EST Wed Feb 3 2021

NJZ020-026-040000-
/O.EXP.KPHI.CF.Y.0004.000000T0000Z-210203T0900Z/
/O.NEW.KPHI.CF.S.0003.210203T0906Z-210204T0000Z/
Ocean-Coastal Ocean-
406 AM EST Wed Feb 3 2021

...MINOR FLOODING CONTINUES ALONG BARNEGAT BAY...

* WHAT...Up to 1 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 evening.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&



$$

DEZ003-004-040000-
/O.EXP.KPHI.CF.Y.0004.000000T0000Z-210203T0900Z/
/O.NEW.KPHI.CF.S.0003.210203T0906Z-210204T0000Z/
Inland Sussex-Delaware Beaches-
406 AM EST Wed Feb 3 2021

...MINOR FLOODING CONTINUES ALONG LITTLE ASSAWOMAN BAY...

* WHAT...Up to 1 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 this evening.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&


$$

NJZ012>014-022>025-027-031015-
/O.EXP.KPHI.CF.Y.0004.000000T0000Z-210203T0900Z/
Middlesex-Western Monmouth-Eastern Monmouth-Atlantic-Cape May-
Atlantic Coastal Cape May-Coastal Atlantic-
Southeastern Burlington-
406 AM EST Wed Feb 3 2021

...COASTAL FLOOD ADVISORY HAS EXPIRED...

Northwesterly winds and a departing low pressure system have
caused flood waters to recede with no additional coastal flooding
anticipated.

$$
1 follow-up statement
319 
WHUS41 KPHI 040015
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
715 PM EST Wed Feb 3 2021

DEZ003-004-NJZ020-026-040115-
/O.EXP.KPHI.CF.S.0003.000000T0000Z-210204T0000Z/
Inland Sussex-Delaware Beaches-Ocean-Coastal Ocean-
715 PM EST Wed Feb 3 2021

...COASTAL FLOOD STATEMENT HAS EXPIRED...

Minor flooding on the northern portion of Barnegat Bay and Little
Assawoman Bay has ended early this evening.

$$

CMS

Nearby

Coastal Flood Statements in New Jersey, 2021Coastal Flood Statements in Delaware, 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.