Alert archive / New Jersey / Flash Flood Warnings in 2012

Flash Flood Warning 2, NWS Philadelphia/Mount Holly

May 24, 2012Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at May 24, 2012, 1:50 PM EDT for Burlington County, New Jersey. It was in force for 89 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 24, 2012, 1:50 PM EDT (17:50 UTC)
Expired: May 24, 2012, 3:19 PM EDT
In force: 89 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 28 km from the middle of the area, began a volume at 17:50 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, 5.8 hours before the alert went out and 129 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: 302 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 499 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 6 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.

926 
WGUS51 KPHI 241750
FFWPHI
NJC005-242145-
/O.NEW.KPHI.FF.W.0002.120524T1750Z-120524T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
150 PM EDT THU MAY 24 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL BURLINGTON COUNTY...

* UNTIL 545 PM EDT...

* AT 146 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER CENTRAL BURLINGTON COUNTY.
  DOPPLER RADAR IS ESTIMATING AROUND THREE INCHES OF RAIN IN THE MEDFORD
  AND MEDFORD LAKES AREA.
 
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PLEASE REPORT FLOODING DAMAGE TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE...1-877-633-6772.

DRIVING INTO FLOOD WATERS COULD COST YOU YOUR LIFE...OR AT THE VERY
LEAST...THOUSANDS OF DOLLARS OF VEHICLE DAMAGE. NEARLY HALF OF ALL
FLASH FLOOD FATALITIES ARE AUTO RELATED. TURN AROUND...DON'T DROWN.

&&

LAT...LON 3977 7479 3986 7493 4003 7486 4017 7467
      4009 7456 4008 7456

$$

TFG

1 follow-up statement

841 
WGUS71 KPHI 241919
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
319 PM EDT THU MAY 24 2012

NJC005-241928-
/O.CAN.KPHI.FF.W.0002.000000T0000Z-120524T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURLINGTON NJ-
319 PM EDT THU MAY 24 2012

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

THE WATERS FROM THE EARLIER HEAVY RAINS ARE RECEDING AND FLOOD WATERS
NO LONGER POSE A THREAT TO LIFE OR PROPERTY. THEREFORE...THE FLASH
FLOOD WARNING HAS BEEN CANCELLED.

LOCATIONS IN THE WARNING INCLUDE CENTRAL BURLINGTON COUNTY.

LAT...LON 3977 7479 3986 7493 4003 7486 4017 7467
      4009 7456 4008 7456

$$

IOVINO

The office that day

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

Issued	Product	Office	Counties	Lasted
May 24, 12:52 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	53 min
May 24, 1:06 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester	94 min
May 24, 1:18 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester	38 min
May 24, 1:19 PM EDT	Special Weather Statement	PHI	Burlington	56 min
May 24, 1:27 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	48 min
May 24, 1:36 PM EDT	Areal Flood Advisory	PHI	Burlington	84 min
May 24, 1:47 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth	43 min
May 24, 2:01 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer	83 min
May 24, 2:08 PM EDT	Severe Thunderstorm Warning	PHI	Mercer	52 min
May 24, 2:21 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Somerset	97 min
May 24, 2:32 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer	29 min
May 24, 2:36 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	54 min
May 24, 3:13 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Warren	91 min
May 24, 3:38 PM EDT	Special Weather Statement	PHI	Hunterdon, Somerset	67 min
May 24, 4:23 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	97 min

Nearby

Flash Flood Warnings in New Jersey, 2012 Every flash flood warning in 2012

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.