Alert archive / New Jersey / Coastal Flood Statements in 2011

Coastal Flood Statement 16, NWS Philadelphia/Mount Holly

May 10, 20116 counties in New Jersey; Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood statement at May 10, 2011, 3:30 PM EDT for 6 counties in New Jersey; Kent County, Sussex County, Delaware. It took effect at May 11, 2011, 1:00 AM EDT. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued: May 10, 2011, 3:30 PM EDT (19:30 UTC)
In effect from: May 11, 2011, 1:00 AM EDT
Expired: May 11, 2011, 3:26 AM EDT
In force: 2 hr
Issued by: NWS Philadelphia/Mount Holly

Counties Kent County, DE, Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Cape May County, NJ, Cumberland County, NJ, Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 19:30 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.5 hours before the alert went out and 110 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1995 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

338 
WHUS41 KPHI 101930
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 PM EDT TUE MAY 10 2011

DEZ002>004-NJZ013-014-020>027-111000-
/O.NEW.KPHI.CF.S.0016.110511T0500Z-110511T1000Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
330 PM EDT TUE MAY 10 2011

...SPOTTY MINOR TIDAL FLOODING MAY OCCUR AROUND THE TIME OF HIGH
TIDE AFTER MIDNIGHT AND VERY EARLY WEDNESDAY MORNING...

TIDAL ANOMALIES ARE ELEVATED THANKS TO A PERSISTENT...ALTHOUGH
NOT VERY STRONG...NORTHEAST FLOW ALONG THE COAST.

SOME SPOTTY MINOR TIDAL FLOODING IS POSSIBLE IN THE MOST
SUSCEPTIBLE AREAS AROUND THE TIME OF HIGH TIDE LATER TONIGHT. HIGH
TIDE WILL OCCUR BETWEEN 1:30 AM AND 3:30 AM ALONG THE NEW JERSEY
AND DELAWARE OCEAN FRONTS...AND UP TO A FEW HOURS LATER ON RARITAN
BAY...LOWER DELAWARE BAY...AND THE BACK BAYS.

EVEN THOUGH THIS WILL BE A MINOR FLOOD EVENT...IF AT ALL...
VEHICLES SHOULD NOT BE PARKED IN FLOOD PRONE AREAS.

$$

1 follow-up statement

749 
WHUS41 KPHI 110726
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
326 AM EDT WED MAY 11 2011


DEZ002>004-NJZ013-014-020>027-110830-
/O.CAN.KPHI.CF.S.0016.000000T0000Z-110511T1000Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
326 AM EDT WED MAY 11 2011

NO FLOODING HAS OCCURRED ALONG THE ATLANTIC COASTS OF DELAWARE
AND NEW JERSEY THIS MORNING.

THE UPPER PART OF DELAWARE BAY NEAR REEDY POINT MAY APPROACH THE 
MINOR TIDAL INUNDATION THRESHOLD BETWEEN 530 AM AND 630 AM.

MEANWHILE...ASTRONOMICAL TIDES WILL BE INCREASING DAILY INTO
EARLY NEXT WEEK.

THIS WILL PROVIDE FURTHER OPPORTUNITIES FOR MINOR COASTAL
FLOODING...ESPECIALLY DURING THE HIGHER OF THE TWO HIGH TIDE
CYCLES OF THE EVENING AND NIGHTTIME HOURS. 

GREATEST RISK OF MINOR FLOODING APPEARS TO OCCUR EARLY NEXT WEEK
ASSOCIATED WITH THE COMBINATION OF HIGHEST ASTRONOMICAL TIDES AND
A SLOWLY EVOLVING LOW PRESSURE SYSTEM ALONG THE MID ATLANTIC
COAST. 


$$


DRAG

Nearby

Coastal Flood Statements in New Jersey, 2011 Coastal Flood Statements in Delaware, 2011 Every coastal flood statement in 2011

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.