Alert archive / New Jersey / Flash Flood Warnings in 2016
Flash Flood Warning 29, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 31, 2016, 8:21 AM EDT for Hunterdon County, New Jersey. It was in force for 7 hr. 10 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 31, 2016, 8:21 AM EDT (12:21 UTC)
- Expired
- Jul 31, 2016, 3:15 PM EDT
- In force
- 7 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
County Hunterdon County, NJ
The radar
The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 12:24 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 31, 9:00 AM EDT | HEAVY RAIN 2.03 | 1 Sw Union Twp, NJ | 24 HOUR RAINFALL. |
| Jul 31, 9:35 AM EDT | FLOOD | Pleasant Run, NJ | PLEASANT RUN HAS EXCEEDED ITS BANKS AND IS SPILLING OVER ONTO COUNTY ROAD 629. |
| Jul 31, 10:00 AM EDT | HEAVY RAIN 4.35 | Readington Twp, NJ | RAINFALL TOTAL FROM 200 PM ON 7/30/16 THROUGH 1000 AM ON 7/31/16 |
| Jul 31, 11:00 AM EDT | FLASH FLOOD | Flemington, NJ | FLASH FLOODING REPORTED ON CHERRYVILLE HOLLOW ROAD IN FLEMINGTON. |
| Jul 31, 11:45 AM EDT | FLOOD | Franklin Twp, NJ | RARITAN RIVER IS ABOVE ITS BANKS...RIVER ROAD IS COVERED WITH WATER BUT NOT QUITE IMPASSABLE YET. |
| Jul 31, 12:00 PM EDT | HEAVY RAIN 6 | Readington Twp, NJ | EVENT TOTAL RAINFALL OF 6.00 INCHES. 3.49 INCHES HAS FALLEN SINCE 745 AM. |
| Jul 31, 12:04 PM EDT | HEAVY RAIN 4.15 | Flemington, NJ | 4.15 INCHES MEASURED SINCE 7 AM THIS MORNING. TOTAL EVENT RAINFALL OF 7.46 INCHES. |
| Jul 31, 12:04 PM EDT | HEAVY RAIN 4.15 | Flemington, NJ | MEASURED SINCE 7 AM THIS MORNING |
| Jul 31, 2:53 PM EDT | FLOOD | Flemington, NJ | HIGH WATER WAS REPORTED ON ROUTE 202 IN FLEMINGTON. |
| Jul 31, 3:10 PM EDT | HEAVY RAIN 6.76 | Readington Twp, NJ | EVENT TOTAL RAINFALL OF 6.76 INCHES. 4.25 INCHES HAS FALLEN SINCE 745 AM. |
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 12:00Z, 0.4 hours before the alert went out and 169 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
- 325 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 544 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
059
WGUS51 KPHI 311221
FFWPHI
NJC019-311615-
/O.NEW.KPHI.FF.W.0029.160731T1221Z-160731T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
821 AM EDT SUN JUL 31 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* FLASH FLOOD WARNING FOR...
HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
* UNTIL 1215 PM EDT
* AT 821 AM EDT...DOPPLER RADAR INDICATED 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...
FLEMINGTON...HIGH BRIDGE...CLINTON...GLEN GARDNER...FRENCHTOWN...
LEBANON...STOCKTON...WHITE HOUSE STATION...SAND BROOK...
SERGEANTSVILLE AND ANNANDALE.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4054 7475 4039 7496 4040 7497 4043 7506
4054 7507 4069 7494 4071 7475 4065 7472
4064 7473 4063 7471 4059 7472 4058 7471
$$
SFJ4 follow-up statements
334
WGUS71 KPHI 311352
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
952 AM EDT SUN JUL 31 2016
NJC019-311615-
/O.CON.KPHI.FF.W.0029.000000T0000Z-160731T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-
952 AM EDT SUN JUL 31 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT FOR
HUNTERDON COUNTY...
AT 951 AM EDT...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED
AREA. UP TO TWO INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FLEMINGTON...HIGH BRIDGE...CLINTON...GLEN GARDNER...FRENCHTOWN...
LEBANON...STOCKTON...WHITE HOUSE STATION...SAND BROOK...
SERGEANTSVILLE AND ANNANDALE.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.
DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND COST YOU
THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY BE DEEPER
THAT YOU THINK. TURN AROUND AND FIND AN ALTERNATE ROUTE.
LAT...LON 4054 7475 4039 7496 4040 7497 4043 7506
4054 7507 4069 7494 4071 7475 4065 7472
4064 7473 4063 7471 4059 7472 4058 7471
$$
SFJ780
WGUS51 KPHI 311539
FFWPHI
NJC019-311915-
/O.EXT.KPHI.FF.W.0029.000000T0000Z-160731T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1139 AM EDT SUN JUL 31 2016
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
* UNTIL 315 PM EDT
* AT 1138 AM EDT...LOCAL LAW ENFORCEMENT REPORTED FLASH FLOODING
OCCURING ACROSS THE WARNED AREA. UP TO 5 INCHES OF RAIN HAVE
FALLEN SINCE THIS MORNING.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FLEMINGTON...HIGH BRIDGE...CLINTON...GLEN GARDNER...FRENCHTOWN...
LEBANON...STOCKTON...WHITE HOUSE STATION...SAND BROOK...
SERGEANTSVILLE AND ANNANDALE.
ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
&&
LAT...LON 4054 7475 4039 7496 4040 7497 4043 7506
4054 7507 4069 7494 4071 7475 4065 7472
4064 7473 4063 7471 4059 7472 4058 7471
$$
SFJ279
WGUS71 KPHI 311658
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1258 PM EDT SUN JUL 31 2016
NJC019-311915-
/O.CON.KPHI.FF.W.0029.000000T0000Z-160731T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-
1258 PM EDT SUN JUL 31 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM EDT FOR
HUNTERDON COUNTY...
AT 1256 PM EDT...DOPPLER RADAR INDICATED THE HEAVY RAIN HAD MOSTLY
LEFT THE WARNED AREA. HOWEVER, WITH UP TO 5 INCHES OF RAIN THAT HAS
ALREADY FALLEN...IT WILL TAKE TIME FOR THE RUNOFF TO RECEDE. FLASH
FLOODING HAS BEEN REPORTED BY LOCAL LAW ENFORCEMENT AND TRAINED
SPOTTERS.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FLEMINGTON...HIGH BRIDGE...CLINTON...GLEN GARDNER...FRENCHTOWN...
LEBANON...STOCKTON...WHITE HOUSE STATION...SAND BROOK...
SERGEANTSVILLE AND ANNANDALE.
DRIVING INTO FLOOD WATERS COULD PUT YOUR LIFE AT RISK AND COST YOU
THOUSANDS OF DOLLARS IN VEHICLE REPAIRS. FLOOD WATERS MAY BE DEEPER
THAT YOU THINK. TURN AROUND AND FIND AN ALTERNATE ROUTE.
LAT...LON 4054 7475 4039 7496 4040 7497 4043 7506
4054 7507 4069 7494 4071 7475 4065 7472
4064 7473 4063 7471 4059 7472 4058 7471
$$
SFJ457
WGUS71 KPHI 311923
FFSPHI
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
323 PM EDT SUN JUL 31 2016
NJC019-311931-
/O.EXP.KPHI.FF.W.0029.000000T0000Z-160731T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HUNTERDON NJ-
323 PM EDT SUN JUL 31 2016
...THE FLASH FLOOD WARNING FOR HUNTERDON COUNTY HAS EXPIRED...
FLOOD WATERS HAVE RECEDED...AND ARE NO LONGER EXPECTED TO POSE A
THREAT TO LIFE OR PROPERTY. PLEASE CONTINUE TO HEED ANY ROAD
CLOSURES. THE NESHANIC RIVER AT REAVILLE IS STILL RUNNING HIGH AND
IS OUT OF ITS BANKS. A SEPARATE FLOOD WARNING REMAINS IN EFFECT FOR
THE NESHANIC.
LAT...LON 4054 7475 4039 7496 4040 7497 4043 7506
4054 7507 4069 7494 4071 7475 4065 7472
4064 7473 4063 7471 4059 7472 4058 7471
$$
KRUZDLOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 8:15 PM EDT | Areal Flood Advisory | PHI | Hunterdon | 4 hr |
| Jul 30, 10:19 PM EDT | Areal Flood Warning | PHI | Mercer, Middlesex, Somerset | 7 hr |
| Jul 30, 10:32 PM EDT | Areal Flood Warning | PHI | Hunterdon | 4 hr |
| Jul 30, 10:54 PM EDT | Special Weather Statement | PHI | Cumberland, Gloucester, Salem | 36 min |
| Jul 31, 6:31 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Hunterdon, Mercer | 44 min |
| Jul 31, 6:49 AM EDT | River Flood Warning | PHI | Somerset | 25 hr |
| Jul 31, 7:04 AM EDT | Flash Flood Warning | PHI | Burlington, Ocean | 4 hr |
| Jul 31, 7:19 AM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Mercer | 3 hr |
| Jul 31, 7:22 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Somerset | 4 hr |
| Jul 31, 7:48 AM EDT | Areal Flood Advisory | PHI | Burlington, Ocean | 4 hr |
| Jul 31, 9:59 AM EDT | Special Marine Warning | PHI | 61 min | |
| Jul 31, 10:08 AM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland | 4 hr |
| Jul 31, 10:17 AM EDT | Areal Flood Advisory | PHI | Middlesex, Morris, Somerset | 4 hr |
| Jul 31, 11:04 AM EDT | Areal Flood Warning | PHI | Hunterdon, Somerset | 9 hr |
| Jul 31, 11:53 AM EDT | Flash Flood Warning | PHI | Hunterdon, Somerset | 4 hr |
| Jul 31, 12:28 PM EDT | Flash Flood Watch | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 2 more | 38 hr |
| Jul 31, 12:44 PM EDT | Areal Flood Advisory | PHI | Monmouth | 4 hr |
| Jul 31, 2:06 PM EDT | Flash Flood Warning | PHI | Monmouth | 4 hr |
| Jul 31, 2:41 PM EDT | Special Weather Statement | PHI | Mercer | 49 min |
| Jul 31, 2:53 PM EDT | Special Weather Statement | PHI | Ocean | 22 min |
| Jul 31, 7:34 PM EDT | Areal Flood Advisory | PHI | Warren | 4 hr |
Nearby
Flash Flood Warnings in New Jersey, 2016Every flash flood warning in 2016
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.