Alert archive / New Jersey / Areal Flood Warnings in 2017
Areal Flood Warning 4, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood warning at Apr 29, 2017, 7:04 AM EDT for Hunterdon County, Somerset 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
- Apr 29, 2017, 7:04 AM EDT (11:04 UTC)
- Expired
- Apr 29, 2017, 11:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hunterdon County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 11:04 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 00:00Z, 11.1 hours before the alert went out and 164 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1920 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 215 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
290
WGUS41 KPHI 291104
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
704 AM EDT SAT APR 29 2017
NJC019-035-291500-
/O.NEW.KPHI.FA.W.0004.170429T1104Z-170429T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Somerset NJ-
704 AM EDT SAT APR 29 2017
The National Weather Service in Mount Holly NJ has issued a
* Flood Warning for...
Southeastern Hunterdon County in northwestern New Jersey...
Southern Somerset County in northern New Jersey...
* Until 1100 AM EDT
* At 659 AM EDT...Doppler radar and automated rain gauges indicated
up to 2 inches of rain had fallen from earlier thunderstorms. This
has led to rapid rises on area creeks and streams. The rain will
cause flooding.
* Some locations that will experience flooding include...
Somerville, Somerset, Bound Brook, Manville, Flemington, Stockton,
Millstone, Flagtown, Sergeantsville, Cloverhill, Belle Mead,
Martinsville, Sand Brook, Raritan, South Bound Brook and
Lambertville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 4049 7448 4042 7477 4042 7480 4041 7481
4037 7495 4051 7504 4061 7456
$$
SFJ2 follow-up statements
525
WGUS81 KPHI 291250
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
850 AM EDT SAT APR 29 2017
NJC019-035-291500-
/O.CON.KPHI.FA.W.0004.000000T0000Z-170429T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Somerset NJ-
850 AM EDT SAT APR 29 2017
...A FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM EDT FOR
SOUTHEASTERN HUNTERDON AND SOUTHERN SOMERSET COUNTIES...
At 843 AM EDT...the rains and thunderstorms from earlier have moved
well east of the area and no more significant rain is expected for
the next few hours. The excessive rains from earlier are still
causing small streams to run highs and other issues across the area.
The Neshanic Creek was approaching flood stage last hour, but has
since begun to recede.
Some locations that will experience flooding include...
Somerville, Somerset, Bound Brook, Manville, Flemington, Stockton,
Millstone, Flagtown, Sergeantsville, Cloverhill, Belle Mead,
Martinsville, Sand Brook, Raritan, South Bound Brook and
Lambertville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you encounter any roads that are closed or have standing water
across them, turn around and find another way. Remember, most flood
deaths occur in vehicles.
Report any significant flooding to your local law enforcement agency
or to the National Weather Service office.
&&
LAT...LON 4049 7448 4042 7477 4042 7480 4041 7481
4037 7495 4051 7504 4061 7456
$$
po956
WGUS81 KPHI 291445
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1045 AM EDT SAT APR 29 2017
NJC019-035-291453-
/O.CAN.KPHI.FA.W.0004.000000T0000Z-170429T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Somerset NJ-
1045 AM EDT SAT APR 29 2017
...THE FLOOD WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN HUNTERDON
AND SOUTHERN SOMERSET COUNTIES...
The threat for additional flooding has ended. There may still be
some areas of water on roads or swiftly running small streams. Do
not drive anywhere where water is covering the road.
LAT...LON 4049 7448 4042 7477 4042 7480 4041 7481
4037 7495 4051 7504 4061 7456
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 2:54 AM EDT | Special Weather Statement | PHI | Burlington | 36 min |
| Apr 29, 4:14 AM EDT | Special Weather Statement | PHI | Hunterdon, Middlesex, Somerset | 46 min |
| Apr 29, 4:20 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 40 min |
| Apr 29, 4:22 AM EDT | Special Weather Statement | PHI | Burlington, Camden, Gloucester | 38 min |
| Apr 29, 4:29 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 4 hr |
| Apr 29, 4:32 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset | 43 min |
| Apr 29, 4:56 AM EDT | Special Marine Warning | PHI | 64 min | |
| Apr 29, 4:56 AM EDT | Special Weather Statement | PHI | Burlington, Mercer, Monmouth, Ocean | 49 min |
| Apr 29, 5:16 AM EDT | Special Marine Warning | PHI | 29 min | |
| Apr 29, 6:16 AM EDT | Special Marine Warning | PHI | 29 min |
Nearby
Areal Flood Warnings in New Jersey, 2017Every areal flood warning in 2017
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.