Alert archive / New Jersey / Areal Flood Advisories in 2013

Areal Flood Advisory 21, NWS Philadelphia/Mount Holly

May 23, 2013Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood advisory at May 23, 2013, 1:00 PM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: May 23, 2013, 1:00 PM EDT (17:00 UTC)
Expired: May 23, 2013, 4:00 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 124 km from the middle of the area, began a volume at 17:01 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, 5.0 hours before the alert went out and 145 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: 98 J/kg
Mixed-layer CIN: -149 J/kg
Mixed-layer LCL: 599 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 114 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.

222 
WGUS81 KPHI 231700
FLSPHI

FLOOD ADVISORY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
100 PM EDT THU MAY 23 2013

NJC027-037-041-232000-
/O.NEW.KPHI.FA.Y.0021.130523T1700Z-130523T2000Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WARREN NJ-MORRIS NJ-SUSSEX NJ-
100 PM EDT THU MAY 23 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR...
  NORTHEASTERN WARREN COUNTY IN NORTHWEST NEW JERSEY...
  NORTHWESTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  SUSSEX COUNTY IN NORTHWEST NEW JERSEY...

* UNTIL 400 PM EDT

* AT 1258 PM EDT WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF 
HEAVY RAINFALL MOVING NORTHEAST THROUGH SUSSEX COUNTY NEW JERSEY. 
RADAR ESTIMATES THAT NEARLY 1.25 TO 1.5 INCHES OF RAIN HAS FALLEN 
WITHIN THE PAST HOUR. AN ADDITIONAL HALF INCH OF RAIN IS POSSIBLE AS 
THE STORMS MOVE INTO LOWER NEW YORK STATE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

A FLOOD ADVISORY MEANS RIVER OR STREAM FLOWS ARE ELEVATED OR PONDING
OF WATER IN URBAN OR OTHER AREAS IS OCCURRING OR IS IMMINENT.

&&

LAT...LON 4121 7437 4109 7450 4107 7449 4106 7450
      4103 7450 4105 7445 4105 7444 4089 7467
      4089 7476 4086 7484 4100 7503 4129 7455

$$

HEAVENER/JOHNSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 10:53 PM EDT	Special Weather Statement	PHI	Warren	97 min
May 23, 2:14 AM EDT	Special Weather Statement	PHI	Monmouth, Ocean	61 min
May 23, 2:23 PM EDT	Special Weather Statement	PHI	Camden	37 min
May 23, 2:31 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	3 hr
May 23, 3:03 PM EDT	Special Weather Statement	PHI	Sussex, Warren	42 min
May 23, 4:28 PM EDT	Areal Flood Warning	PHI	Morris	3 hr
May 23, 4:47 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Somerset	3 hr
May 23, 5:36 PM EDT	Flash Flood Warning	PHI	Morris	114 min
May 23, 7:34 PM EDT	Areal Flood Warning	PHI	Morris	13 hr

Nearby

Areal Flood Advisories in New Jersey, 2013 Every areal flood advisory in 2013

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.