Alert archive / New Jersey / Flash Flood Warnings in 2009

Flash Flood Warning 6, NWS Philadelphia/Mount Holly

June 13, 2009Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 13, 2009, 1:40 PM EDT for Burlington County, New Jersey. It was in force for 3 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
Jun 13, 2009, 1:40 PM EDT (17:40 UTC)
Expired
Jun 13, 2009, 4:27 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 33 km from the middle of the area, began a volume at 17:42 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 12:00Z, 5.7 hours before the alert went out and 220 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 12:00Z on 2009-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 844 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2009-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
844 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KPHI 131740
FFWPHI
NJC005-132130-
/O.NEW.KPHI.FF.W.0006.090613T1740Z-090613T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
140 PM EDT SAT JUN 13 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 530 PM EDT

* AT 134 PM EDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED SEVERAL   
  ROADS FLOODING OUT IN MEDFORD TOWNSHIP AND DOPPLER RADAR WAS       
  SHOWING TWO TO TWO AND A HALF INCHES OF RAIN IN ONE HOUR. THE      
  SHOWERS WERE MOVING SLOWLY SOUTHEAST THROUGH THE COUNTY WITH MORE  
  MOVING INTO THE WESTERN HALF OF BURLINGTON FROM CAMDEN COUNTY. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MEDFORD... 
MEDFORD LAKES...LEISURETOWNE...TABERNACLE...SHAMONG...ATSION AND 
WHARTON STATE FOREST

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

LAT...LON 3997 7498 4000 7472 3988 7451 3967 7461
      3975 7477 3977 7477 3979 7489

$$

EBERWINE
2 follow-up statements
000 
WGUS71 KPHI 131844
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
244 PM EDT SAT JUN 13 2009

NJC005-132130-
/O.CON.KPHI.FF.W.0006.000000T0000Z-090613T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLINGTON NJ-
244 PM EDT SAT JUN 13 2009

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM EDT FOR
CENTRAL BURLINGTON COUNTY...

AT 239 PM EDT...LOCAL LAW ENFORCEMENT AND EMERGENMCY MANAGEMENT 
OFFICIALS REPORTED THAT FLOODING WAS STILL REPORTED IN MEDFORD.
THE FLOODING WAS EASING AND AS OF 230 PM THERE WERE NO IMMINENT
THUNDERSTORMS NEAR THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TABERNACLE...
MEDFORD AND LEISURETOWNE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

DO NOT DRIVE AROUND BARRICADES. FOLLOW THE DIRECTION OF LAW ENFORCEMENT
AND EMERGENCY PERSONNEL IN YOUR AREA.

&&

LAT...LON 3994 7491 3997 7471 3988 7451 3972 7462
      3975 7477 3977 7477 3979 7487

$$

GIGI
000 
WGUS71 KPHI 132027
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
427 PM EDT SAT JUN 13 2009

NJC005-132036-
/O.CAN.KPHI.FF.W.0006.000000T0000Z-090613T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLINGTON NJ-
427 PM EDT SAT JUN 13 2009

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR CENTRAL BURLINGTON
COUNTY...

RAINFALL TOTALS FROM THE DOPPLER RADAR RANGED FROM THREE TO FOUR 
INCHES MAINLY IN AND AROUND MEDFORD. 


LAT...LON 3994 7491 3997 7471 3988 7451 3972 7462
      3975 7477 3977 7477 3979 7487

$$

EBERWINE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 1:17 PM EDTAreal Flood WarningPHIBurlington88 min
Jun 13, 3:17 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Somerset3 hr
Jun 13, 6:35 PM EDTSpecial Marine WarningPHI85 min

Nearby

Flash Flood Warnings in New Jersey, 2009Every flash flood warning in 2009

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.