Alert archive / New Jersey / Coastal Flood Statements in 2011

Coastal Flood Statement 8, NWS Philadelphia/Mount Holly

February 21, 20116 counties in New Jersey; Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood statement at Feb 21, 2011, 3:30 PM EST for 6 counties in New Jersey; Sussex County, Delaware. It took effect at Feb 21, 2011, 9:00 PM EST. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Feb 21, 2011, 3:30 PM EST (20:30 UTC)
In effect from
Feb 21, 2011, 9:00 PM EST
Expired
Feb 22, 2011, 1:00 AM EST
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 35 km from the middle of the area, began a volume at 20:36 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, 8.5 hours before the alert went out and 199 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 2011-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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, Brookhaven, NY at 12:00Z on 2011-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 409 square meters per square second.1939587897117136Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
435 m above ground
0-6 km bulk shear
92 kt
0-1 km storm-relative helicity
409 m²/s²
0-3 km storm-relative helicity
666 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.

134 
WHUS41 KPHI 212030
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
330 PM EST MON FEB 21 2011

DEZ003-004-NJZ013-014-020-022>027-220600-
/O.NEW.KPHI.CF.S.0008.110222T0200Z-110222T0600Z/
INLAND SUSSEX-DELAWARE BEACHES-WESTERN MONMOUTH-EASTERN MONMOUTH-
OCEAN-ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-
330 PM EST MON FEB 21 2011

...SOME MINOR TIDAL FLOODING POSSIBLE LATER TONIGHT...

AN AREA OF LOW PRESSURE WILL TRACK ACROSS THE DELMARVA REGION LATE
TONIGHT AND EARLY TUESDAY MORNING. THIS COUPLED WITH HIGH PRESSURE
TO THE NORTH WILL ALLOW A NORTHEASTERLY FLOW TO STRENGTHEN SOME FOR
AWHILE TONIGHT INTO TUESDAY. THE TIDE LEVELS ARE RUNNING ABOVE THE
PREDICTED VALUES AND THE ASTRONOMICAL HIGH TIDE TONIGHT IS HIGHER
THAN THE ONE THIS MORNING. GIVEN THE NORTHEASTERLY FLOW, THE
DEPARTURES SHOULD INCREASE SOME DURING THE NIGHT AS WATER IS
PUSHED TO THE COAST. THIS MAY RESULT IN SOME MINOR TIDAL FLOODING
DURING THE HIGH TIDE TONIGHT, WHICH GENERALLY OCCURS BETWEEN
10:00 PM TO 11:30 PM ON THE OCEANFRONT AND A FEW HOURS LATER IN
THE BACK BAYS.

$$

GORSE
3 follow-up statements
412 
WHUS41 KPHI 212054
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
354 PM EST MON FEB 21 2011

NJZ012-220600-
/O.EXA.KPHI.CF.S.0008.110222T0200Z-110222T0600Z/
MIDDLESEX-
354 PM EST MON FEB 21 2011

...SOME MINOR TIDAL FLOODING POSSIBLE LATER TONIGHT...

AN AREA OF LOW PRESSURE WILL TRACK ACROSS THE DELMARVA REGION
LATE TONIGHT AND EARLY TUESDAY MORNING. THIS COUPLED WITH HIGH
PRESSURE TO THE NORTH WILL ALLOW A NORTHEASTERLY FLOW TO
STRENGTHEN SOME FOR AWHILE TONIGHT INTO TUESDAY. THE TIDE LEVELS
ARE RUNNING ABOVE THE PREDICTED VALUES AND THE ASTRONOMICAL HIGH
TIDE TONIGHT IS HIGHER THAN THE ONE THIS MORNING. GIVEN THE
NORTHEASTERLY FLOW, THE DEPARTURES SHOULD INCREASE SOME DURING
THE NIGHT AS WATER IS PUSHED TO THE COAST. THIS MAY RESULT IN SOME
MINOR TIDAL FLOODING DURING THE HIGH TIDE TONIGHT, WHICH
GENERALLY OCCURS BETWEEN 10:00 PM TO 11:30 PM ON THE OCEANFRONT
INCLUDING RARITAN BAY AND A FEW HOURS LATER IN THE BACK BAYS.

$$

DEZ003-004-NJZ013-014-020-022>027-220600-
/O.CON.KPHI.CF.S.0008.110222T0200Z-110222T0600Z/
INLAND SUSSEX-DELAWARE BEACHES-WESTERN MONMOUTH-EASTERN MONMOUTH-
OCEAN-ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-
354 PM EST MON FEB 21 2011

...SOME MINOR TIDAL FLOODING POSSIBLE LATER TONIGHT...

AN AREA OF LOW PRESSURE WILL TRACK ACROSS THE DELMARVA REGION
LATE TONIGHT AND EARLY TUESDAY MORNING. THIS COUPLED WITH HIGH
PRESSURE TO THE NORTH WILL ALLOW A NORTHEASTERLY FLOW TO
STRENGTHEN SOME FOR AWHILE TONIGHT INTO TUESDAY. THE TIDE LEVELS
ARE RUNNING ABOVE THE PREDICTED VALUES AND THE ASTRONOMICAL HIGH
TIDE TONIGHT IS HIGHER THAN THE ONE THIS MORNING. GIVEN THE
NORTHEASTERLY FLOW, THE DEPARTURES SHOULD INCREASE SOME DURING
THE NIGHT AS WATER IS PUSHED TO THE COAST. THIS MAY RESULT IN SOME
MINOR TIDAL FLOODING DURING THE HIGH TIDE TONIGHT, WHICH
GENERALLY OCCURS BETWEEN 10:00 PM TO 11:30 PM ON THE OCEANFRONT
AND A FEW HOURS LATER IN THE BACK BAYS.

$$

GORSE
249 
WHUS41 KPHI 212059
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
359 PM EST MON FEB 21 2011

DEZ003-004-NJZ012>014-020-022>027-220600-
/O.CON.KPHI.CF.S.0008.110222T0200Z-110222T0600Z/
INLAND SUSSEX-DELAWARE BEACHES-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
359 PM EST MON FEB 21 2011

...SOME MINOR TIDAL FLOODING POSSIBLE LATER TONIGHT...

AN AREA OF LOW PRESSURE WILL TRACK ACROSS THE DELMARVA REGION
LATE TONIGHT AND EARLY TUESDAY MORNING. THIS COUPLED WITH HIGH
PRESSURE TO THE NORTH WILL ALLOW A NORTHEASTERLY FLOW TO
STRENGTHEN SOME FOR AWHILE TONIGHT INTO TUESDAY. THE TIDE LEVELS
ARE RUNNING ABOVE THE PREDICTED VALUES AND THE ASTRONOMICAL HIGH
TIDE TONIGHT IS HIGHER THAN THE ONE THIS MORNING. GIVEN THE
NORTHEASTERLY FLOW, THE DEPARTURES SHOULD INCREASE SOME DURING
THE NIGHT AS WATER IS PUSHED TO THE COAST. THIS MAY RESULT IN SOME
MINOR TIDAL FLOODING DURING THE HIGH TIDE TONIGHT, WHICH
GENERALLY OCCURS BETWEEN 10:00 PM TO 11:30 PM ON THE OCEANFRONT
INCLUDING RARITAN BAY AND A FEW HOURS LATER IN THE BACK BAYS.

$$

GORSE
919 
WHUS41 KPHI 220237
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
937 PM EST MON FEB 21 2011

DEZ003-004-NJZ023-024-220600-
/O.CAN.KPHI.CF.S.0008.000000T0000Z-110222T0600Z/
/O.NEW.KPHI.CF.Y.0003.110222T0237Z-110222T0600Z/
INLAND SUSSEX-DELAWARE BEACHES-CAPE MAY-ATLANTIC COASTAL CAPE MAY-
937 PM EST MON FEB 21 2011

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT UNTIL 1 AM EST TUESDAY. 

LOW PRESSURE WILL TRACK ACROSS THE DELMARVA REGION LATE TONIGHT
AND EARLY TUESDAY MORNING. THIS...COUPLED WITH HIGH PRESSURE TO
THE NORTH...WILL ALLOW A NORTHEASTERLY FLOW TO STRENGTHEN FOR
AWHILE TONIGHT INTO TUESDAY. THE TIDE LEVELS ARE RUNNING ABOVE THE
PREDICTED VALUES AND THE ASTRONOMICAL HIGH TIDE TONIGHT IS HIGHER
THAN THE ONE THIS MORNING. GIVEN THE NORTHEASTERLY FLOW AND
INCREASED TIDAL DEPARTURES OF 1 TO 1.5 FEET ABOVE NORMAL...MINOR
TIDAL FLOODING IS LIKELY DURING THE HIGH TIDE TONIGHT. HIGH TIDE
WILL OCCUR GENERALLY BETWEEN 10:00 PM TO 11:30 PM ON THE
OCEANFRONT...AND UP TO A FEW HOURS LATER ON THE BACK BAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$

NJZ012>014-020-022-025>027-220600-
/O.CON.KPHI.CF.S.0008.000000T0000Z-110222T0600Z/
MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-OCEAN-ATLANTIC-
COASTAL ATLANTIC-COASTAL OCEAN-SOUTHEASTERN BURLINGTON-
937 PM EST MON FEB 21 2011

...SPOTTY MINOR TIDAL FLOODING MAY OCCUR AROUND THE TIMES OF HIGH
TIDE LATE THIS EVENING...

LOW PRESSURE WILL TRACK ACROSS THE DELMARVA REGION LATE TONIGHT
AND EARLY TUESDAY MORNING. THIS...COUPLED WITH HIGH PRESSURE TO
THE NORTH...WILL ALLOW A NORTHEASTERLY FLOW TO STRENGTHEN FOR
AWHILE TONIGHT INTO TUESDAY. THE TIDE LEVELS ARE RUNNING ABOVE THE
PREDICTED VALUES AND THE ASTRONOMICAL HIGH TIDE TONIGHT IS HIGHER
THAN THE ONE THIS MORNING. GIVEN THE NORTHEASTERLY FLOW AND
INCREASED TIDAL DEPARTURES...SOME MINOR TIDAL FLOODING MAY RESULT
DURING THE HIGH TIDE TONIGHT. HIGH TIDE WILL OCCUR GENERALLY
BETWEEN 10:00 PM TO 11:30 PM ON THE OCEANFRONT...INCLUDING
RARITAN BAY...AND UP TO A FEW HOURS LATER ON THE BACK BAYS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 3:13 PM ESTWinter Storm WarningPHIAtlantic, Camden, Cape May, Cumberland, Gloucester, Salem15 hr
Feb 21, 3:13 PM ESTWinter Weather AdvisoryPHIBurlington, Ocean15 hr

Nearby

Coastal Flood Statements in New Jersey, 2011Coastal Flood Statements in Delaware, 2011Every 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.