Alert archive / New Jersey / Flash Flood Warnings in 2013

Flash Flood Warning 32, NWS Philadelphia/Mount Holly

July 1, 2013Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 1, 2013, 8:25 AM EDT for Sussex County, New Jersey. It was in force for 4 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: Jul 1, 2013, 8:25 AM EDT (12:25 UTC)
Expired: Jul 1, 2013, 12:30 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 143 km from the middle of the area, began a volume at 12:26 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, 0.4 hours before the alert went out and 166 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: 687 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 438 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

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

129 
WGUS51 KPHI 011225
FFWPHI
NJC037-011630-
/O.NEW.KPHI.FF.W.0032.130701T1225Z-130701T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
825 AM EDT MON JUL 1 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SUSSEX COUNTY...

* UNTIL 1230 PM EDT...

* AT 820 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN FROM THUNDERSTORMS OVER SUSSEX COUNTY.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEWTON.

SPOTTER REPORTS AND ESTIMATED RAINFALL FROM DOPPLER RADAR INDICATE 
THAT IN EXCESS OF TWO INCHES OF RAIN ARE FALLING PER HOUR. THESE 
TYPE OF RAIN RATES, ON TOP OF ALREADY WET SOILS, WILL LEAD TO RAPID  
FLOODING. MOVE TO HIGHER GROUND IF NECESSARY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

&&

LAT...LON 4125 7445 4095 7481 4109 7497 4109 7499
      4110 7500 4118 7489 4121 7487 4123 7487
      4129 7484 4135 7475 4136 7469

$$

KRUZDLO

2 follow-up statements

570 
WGUS71 KPHI 011354
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
954 AM EDT MON JUL 1 2013

NJC037-011630-
/O.CON.KPHI.FF.W.0032.000000T0000Z-130701T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-
954 AM EDT MON JUL 1 2013

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 PM EDT FOR
SUSSEX COUNTY...

AT 942 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR ESTIMATED 
THAT NEARLY 4.00 INCHES OF RAIN HAD FALLEN THIS MORNING ACROSS 
PORTIONS OF THE WARNED AREA. A FEW SPOTTER REPORTS INDICATED THAT UP 
TO 2.50 INCHES OF THIS RAIN HAD FALLEN IN ABOUT THIRTY MINUTES.

EVEN THOUGH THE RAIN HAS MOVED OUT OF PORTIONS OF THE WARNED AREA, 
DUE TO THESE EXTRAORDINARY HIGH RAINFALL RATES, THE WARNING WILL 
REMAIN IN EFFECT UNTIL 1230 PM.  


LAT...LON 4125 7445 4095 7481 4109 7497 4109 7499
      4110 7500 4118 7489 4121 7487 4123 7487
      4129 7484 4135 7475 4136 7469

$$

KRUZDLO

535 
WGUS71 KPHI 011626
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1226 PM EDT MON JUL 1 2013

NJC037-011636-
/O.EXP.KPHI.FF.W.0032.000000T0000Z-130701T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-
1226 PM EDT MON JUL 1 2013

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1230 PM EDT FOR SUSSEX
COUNTY...

THE WATERS FROM THE EARLIER HEAVY RAINS ARE RECEDING AND NO LONGER
POSE A THREAT TO LIFE OR PROPERTY. THEREFORE...THE FLASH FLOOD
WARNING WILL BE ALLOWED TO EXPIRE.

MORE RAIN IS EXPECTED THIS AFTERNOON. ADDITIONAL WARNINGS ARE 
POSSIBLE. REMAIN VIGILANT.

REMEMBER, DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND 
COST YOU THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY 
BE DEEPER THAN YOU THINK. TURN AROUND AND FIND AN ALTERNATE ROUTE.


LAT...LON 4125 7445 4095 7481 4109 7497 4109 7499
      4110 7500 4118 7489 4121 7487 4123 7487
      4129 7484 4135 7475 4136 7469

$$

KRUZDLO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 4:07 AM EDT	Special Weather Statement	PHI	Sussex	38 min
Jul 1, 5:37 AM EDT	Flash Flood Warning	PHI	Warren	6 hr
Jul 1, 6:49 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Sussex, Warren	4 hr
Jul 1, 7:09 AM EDT	Areal Flood Advisory	PHI	Cumberland, Salem	4 hr
Jul 1, 7:47 AM EDT	Special Weather Statement	PHI	Hunterdon, Somerset	58 min
Jul 1, 8:03 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Morris, Somerset	4 hr
Jul 1, 8:07 AM EDT	Flash Flood Warning	PHI	Hunterdon	4 hr
Jul 1, 8:39 AM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	66 min
Jul 1, 8:55 AM EDT	Flash Flood Warning	PHI	Morris, Somerset, Sussex, Warren	4 hr
Jul 1, 10:30 AM EDT	River Flood Warning	PHI	Hunterdon, Somerset	5 hr
Jul 1, 10:52 AM EDT	Areal Flood Warning	PHI	Hunterdon, Morris, Somerset	13 hr
Jul 1, 12:05 PM EDT	Areal Flood Advisory	PHI	Monmouth, Ocean	4 hr
Jul 1, 12:28 PM EDT	River Flood Warning	PHI	Burlington	40 hr
Jul 1, 12:36 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	4 hr
Jul 1, 2:14 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	4 hr
Jul 1, 5:38 PM EDT	River Flood Warning	PHI	Somerset	4 hr

Nearby

Flash Flood Warnings in New Jersey, 2013 Every flash flood warning 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.