Alert archive / New Jersey / Coastal Flood Statements in 2021

Coastal Flood Statement 1, NWS Philadelphia/Mount Holly

January 4, 2021Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this coastal flood statement at Jan 4, 2021, 3:08 PM EST for Ocean County, New Jersey. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jan 4, 2021, 3:08 PM EST (20:08 UTC)
Expired
Jan 4, 2021, 6:59 PM EST
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 16 km from the middle of the area, began a volume at 20:10 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

Brookhaven, NY (KOKX), launched 12:00Z, 8.1 hours before the alert went out and 162 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, Brookhaven, NY at 12:00Z on 2021-01-04Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2021-01-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.19395878Sfc1 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
563 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
-31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

165 
WHUS41 KPHI 042008
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
308 PM EST Mon Jan 4 2021

NJZ020-026-050000-
/O.NEW.KPHI.CF.S.0001.210104T2008Z-210105T0000Z/
Ocean-Coastal Ocean-
308 PM EST Mon Jan 4 2021

...MINOR FLOODING ALONG BARNEGAT BAY...

* 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...Until 7 PM EST this evening.

* IMPACTS...Minor roadway flooding is possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
1 follow-up statement
824 
WHUS41 KPHI 042359
CFWPHI

Coastal Hazard Message
National Weather Service Mount Holly NJ
659 PM EST Mon Jan 4 2021

NJZ020-026-050100-
/O.CAN.KPHI.CF.S.0001.000000T0000Z-210105T0000Z/
Ocean-Coastal Ocean-
659 PM EST Mon Jan 4 2021

...MINOR FLOODING STATEMENT CANCELLED FOR BARNEGAT BAY...

Waters have receded from Barnegat Bay thus there is no longer an 
additional threat from coastal flooding.

$$

Nearby

Coastal 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.