Alert archive / New Jersey / Areal Flood Warnings in 2018

Areal Flood Warning 113, NWS Philadelphia/Mount Holly

November 26, 2018Hunterdon County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this areal flood warning at Nov 26, 2018, 6:02 PM EST for Hunterdon County, Somerset County, New Jersey. It was in force for 2 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
Nov 26, 2018, 6:02 PM EST (23:02 UTC)
Expired
Nov 26, 2018, 8:30 PM EST
In force
2 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), 69 km from the middle of the area, began a volume at 23:03 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, 11.0 hours before the alert went out and 167 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2018-11-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2018-11-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

760 
WGUS41 KPHI 262302
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
602 PM EST MON NOV 26 2018

NJC019-035-270800-
/O.NEW.KPHI.FA.W.0113.181126T2302Z-181127T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Somerset NJ-
602 PM EST MON NOV 26 2018

The National Weather Service in Mount Holly NJ has issued a

* Flood Warning for...
  East central Hunterdon County in northwestern New Jersey...
  West central Somerset County in northern New Jersey...

* Until 300 AM EST Tuesday.

* At 558 PM EST, a river gage at Reaville along the Neshanic River 
  indicated the river continued to rise and could cause minor road 
  flooding along the river this evening into late Monday night. 

* Some locations that could experience flooding include...
  Flemington and Cloverhill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Warning means that flooding is imminent or occurring. All
interested parties should take necessary precautions immediately.

&&

LAT...LON 4053 7472 4050 7469 4045 7479 4046 7490
      4050 7488

$$

SFJ
1 follow-up statement
500 
WGUS81 KPHI 270130
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
830 PM EST MON NOV 26 2018

NJC019-035-270139-
/O.CAN.KPHI.FA.W.0113.000000T0000Z-181127T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Somerset NJ-
830 PM EST MON NOV 26 2018

...THE FLOOD WARNING HAS BEEN CANCELLED FOR EAST CENTRAL HUNTERDON
AND WEST CENTRAL SOMERSET COUNTIES...

Flood waters have receded, and are no longer expected to pose a
threat to life or property. Please continue to heed any road
closures.

LAT...LON 4053 7472 4050 7469 4045 7479 4046 7490
      4050 7488

$$

SFJ

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 25, 7:39 PM ESTAreal Flood WarningPHIMiddlesex20 hr
Nov 26, 3:06 AM ESTGale WarningPHI39 hr
Nov 26, 2:06 PM ESTCoastal Flood StatementPHIOcean29 hr
Nov 26, 3:07 PM ESTAreal Flood AdvisoryPHIHunterdon, Middlesex, Morris, Somerset, Sussex, Warren3 hr
Nov 26, 3:31 PM ESTAreal Flood WarningPHIMiddlesex4 hr
Nov 26, 3:40 PM ESTAreal Flood WarningPHICumberland, Salem44 hr
Nov 26, 4:24 PM ESTFlash Flood WarningPHIMorris, Somerset, Sussex3 hr
Nov 26, 5:34 PM ESTAreal Flood WarningPHIWarren40 hr
Nov 26, 5:51 PM ESTRiver Flood WarningPHIMorris31 hr
Nov 26, 5:52 PM ESTRiver Flood WarningPHIMorris, Passaic21 hr
Nov 26, 6:29 PM ESTAreal Flood WarningPHIAtlantic, Burlington21 hr

Nearby

Areal Flood Warnings in New Jersey, 2018Every areal flood warning in 2018

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.