Alert archive / New Jersey / Areal Flood Warnings in 2011

Areal Flood Warning 8, NWS Philadelphia/Mount Holly

March 7, 2011Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood warning at Mar 7, 2011, 4:46 AM EST for Sussex County, Warren County, New Jersey. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Mar 7, 2011, 4:46 AM EST (09:46 UTC)
Expired
Mar 7, 2011, 6:45 PM EST
In force
14 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 134 km from the middle of the area, began a volume at 09:45 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 00:00Z, 9.8 hours before the alert went out and 176 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 00:00Z on 2011-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 49 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2011-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 272 square meters per square second.1939587897Sfc1 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
49 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
489 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
272 m²/s²
0-3 km storm-relative helicity
371 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.

592 
WGUS41 KPHI 070946
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
446 AM EST MON MAR 7 2011

NJC037-041-071545-
/O.NEW.KPHI.FA.W.0008.110307T0946Z-110307T1545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-
446 AM EST MON MAR 7 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLOOD WARNING FOR SMALL STREAMS IN...
  WEST CENTRAL SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  NORTH CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 1045 AM EST

* AT 444 AM EST...THE TWO TO THREE AND A HALF INCHES OF RAIN THAT 
HAVE FALLEN ACROSS THE REGION HAVE PUSHED FLAT BROOK AT 
FLATBROOKVILLE OVER FLOOD STAGE.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.
STREAM RISES WILL BE SLOW AND FLASH FLOODING IS NOT EXPECTED.
HOWEVER...ALL INTERESTED PARTIES SHOULD TAKE NECESSARY PRECAUTIONS
IMMEDIATELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4119 7488 4110 7472 4092 7494 4102 7505
      4107 7499 4107 7497 4109 7499 4110 7499
      4112 7495

$$

KRUZDLO
1 follow-up statement
306 
WGUS41 KPHI 071515
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1015 AM EST MON MAR 7 2011

NJC037-041-072345-
/O.EXT.KPHI.FA.W.0008.000000T0000Z-110307T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-WARREN NJ-
1015 AM EST MON MAR 7 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE

* FLOOD WARNING FOR SMALL STREAMS IN...
  WEST CENTRAL SUSSEX COUNTY IN NORTHWEST NEW JERSEY...
  NORTH CENTRAL WARREN COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 645 PM EST MONDAY

* AT 1013 AM EST...FLAT BROOK AT FLATBROOKVILLE WAS 8.0 FEET AND     
  RISING SLOWLY. FLOOD STAGE IS 6.0 FEET. FOR THIS REASON THE FLOOD  
  WARNING HAS BEEN EXTENDED FOR THE AREA.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN REPORTED.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 4119 7488 4110 7472 4092 7494 4102 7505
      4107 7499 4107 7497 4109 7499 4110 7499
      4112 7495

$$

JJM

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 7:03 PM ESTAreal Flood AdvisoryPHIBurlington4 hr
Mar 6, 7:08 PM ESTSpecial Weather StatementPHIMiddlesex, Somerset67 min
Mar 6, 7:11 PM ESTSpecial Weather StatementPHIAtlantic, Burlington, Ocean64 min
Mar 6, 8:02 PM ESTSpecial Weather StatementPHIMiddlesex, Monmouth, Ocean58 min
Mar 6, 8:38 PM ESTSpecial Weather StatementPHIMonmouth52 min
Mar 6, 9:30 PM ESTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Salem7 hr
Mar 6, 10:21 PM ESTAreal Flood WarningPHISomerset24 hr
Mar 6, 10:31 PM ESTAreal Flood AdvisoryPHIBurlington, Middlesex, Monmouth, Ocean6 hr
Mar 6, 10:40 PM ESTRiver Flood WarningPHIMorris, Passaic46 hr
Mar 6, 10:44 PM ESTRiver Flood WarningPHIBergen, Morris, Passaic39 hr
Mar 6, 10:50 PM ESTRiver Flood WarningPHIMorris, Passaic43 hr
Mar 6, 11:45 PM ESTAreal Flood AdvisoryPHISussex, Warren6 hr
Mar 7, 1:01 AM ESTRiver Flood WarningPHIMorris43 hr
Mar 7, 1:01 AM ESTRiver Flood WarningPHIMorris7 days
Mar 7, 4:03 AM ESTRiver Flood WarningPHISomerset6 hr
Mar 7, 4:03 AM ESTRiver Flood WarningPHIMiddlesex, Somerset17 hr
Mar 7, 4:03 AM ESTRiver Flood WarningPHIMiddlesex, Somerset17 hr
Mar 7, 4:10 AM ESTRiver Flood WarningPHIEssex, Morris, Passaic41 days
Mar 7, 4:10 AM ESTRiver Flood WarningPHIEssex, Passaic41 days
Mar 7, 8:52 AM ESTRiver Flood WarningPHIHunterdon, Warren17 hr
Mar 7, 8:52 AM ESTRiver Flood WarningPHIHunterdon, Mercer17 hr
Mar 7, 8:55 AM ESTRiver Flood WarningPHISussex, Warren11 hr
Mar 7, 9:28 AM ESTRiver Flood WarningPHISomerset19 hr
Mar 7, 6:19 PM ESTAreal Flood WarningPHISussex, Warren5 hr

Nearby

Areal Flood Warnings in New Jersey, 2011Every areal flood warning 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.