Alert archive / New Jersey / Flash Flood Warnings in 2015
Flash Flood Warning 41, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 26, 2015, 8:42 PM EDT for Sussex County, New Jersey. It was in force for 4 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 26, 2015, 8:42 PM EDT (00:42 UTC)
- Expired
- Jul 27, 2015, 12:45 AM 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 Binghamton radar (KBGM), 143 km from the middle of the area, began a volume at 00:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 26, 8:45 PM EDT | HEAVY RAIN 2.57 | 1 Ssw Montague, NJ | AWS RAIN GAUGE. 70 MINUTE TOTAL. |
| Jul 26, 11:59 PM EDT | HEAVY RAIN 2.88 | 1 Ssw Montague, NJ | EVENT TOTAL... 2.57 INCHES IN 70 MINUTES ENDING 845 PM. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.7 hours before the alert went out and 165 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.
- Mixed-layer CAPE
- 35 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 1409 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
068
WGUS51 KPHI 270042
FFWPHI
NJC037-270445-
/O.NEW.KPHI.FF.W.0041.150727T0042Z-150727T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
842 PM EDT SUN JUL 26 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHWESTERN SUSSEX COUNTY IN NORTHWESTERN NEW JERSEY...
* UNTIL 1245 AM EDT
* AT 841 PM EDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED A
THUNDERSTORM PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO
INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MONTAGUE...MILFORD...HAINESVILLE AND HIGH POINT.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 4133 7464 4117 7467 4115 7490 4128 7484
4131 7479 4132 7480 4132 7479 4133 7476
4135 7475 4136 7469
$$
JRK2 follow-up statements
193
WGUS71 KPHI 270154
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
954 PM EDT SUN JUL 26 2015
NJC037-270445-
/O.CON.KPHI.FF.W.0041.000000T0000Z-150727T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-
954 PM EDT SUN JUL 26 2015
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM EDT FOR
NORTHWESTERN SUSSEX COUNTY...
AT 953 PM EDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAIN OVER THE WARNED AREA. UP TO THREE
INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING MAY ALREADY BE
OCCURRING OR BEGINNING SHORTLY.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MONTAGUE...MILFORD...HAINESVILLE AND HIGH POINT.
ADDITIONAL RAINFALL AMOUNTS OF UP TO ONE INCH ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.
&&
LAT...LON 4115 7490 4128 7484 4131 7479 4132 7480
4132 7479 4133 7476 4135 7475 4136 7469
4134 7465 4130 7465 4116 7475
$$
JRK222
WGUS71 KPHI 270436
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1236 AM EDT MON JUL 27 2015
NJC037-270445-
/O.EXP.KPHI.FF.W.0041.000000T0000Z-150727T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUSSEX NJ-
1236 AM EDT MON JUL 27 2015
...THE FLASH FLOOD WARNING FOR NORTHWESTERN SUSSEX COUNTY WILL EXPIRE
AT 1245 AM EDT...
THE WIDESPREAD HEAVY RAIN HAS ENDED...AND FLASH FLOODING IS NO
LONGER EXPECTED TO POSE A THREAT.
LAT...LON 4115 7490 4128 7484 4131 7479 4132 7480
4132 7479 4133 7476 4135 7475 4136 7469
4134 7465 4130 7465 4116 7475
$$The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 26, 8:00 PM EDT | Special Weather Statement | PHI | Sussex | 30 min |
| Jul 26, 8:10 PM EDT | Areal Flood Advisory | PHI | Sussex | 4 hr |
| Jul 26, 10:02 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 7 hr |
| Jul 26, 10:43 PM EDT | Special Weather Statement | PHI | Morris, Warren | 92 min |
| Jul 26, 11:05 PM EDT | Areal Flood Advisory | PHI | Warren | 4 hr |
| Jul 27, 12:54 AM EDT | Areal Flood Advisory | PHI | Hunterdon | 3 hr |
| Jul 27, 3:19 AM EDT | Areal Flood Advisory | PHI | Camden, Cumberland, Gloucester, Salem | 3 hr |
| Jul 27, 5:20 PM EDT | Areal Flood Advisory | PHI | Middlesex, Somerset | 4 hr |
| Jul 27, 7:13 PM EDT | Areal Flood Advisory | PHI | Mercer | 4 hr |
Nearby
Flash Flood Warnings in New Jersey, 2015Every flash flood warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.