Alert archive / New Jersey / Flash Flood Warnings in 2017

Flash Flood Warning 1, NWS Philadelphia/Mount Holly

May 5, 2017Monmouth County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at May 5, 2017, 12:54 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 4 hr. 6 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
May 5, 2017, 12:54 PM EDT (16:54 UTC)
Expired
May 5, 2017, 4:45 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 16:55 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

TimeReportWhereRemark
May 5, 1:00 PM EDTFLOODHowell Twp, NJINTERSECTION OF FRIENDSHIP ROAD AND CHURCH ROAD FLOODED
May 5, 1:00 PM EDTFLOODHowell Twp, NJROUTE 33 AT FAIRFIELD ROAD IMPASSIBLE
May 5, 1:00 PM EDTFLOODUnion Beach, NJCAR STUCK IN ESTIMATED 2FT OF WATER
May 5, 1:00 PM EDTFLOODUnion Beach, NJCAR STUCK IN ESTIMATED 2FT OF WATER
May 5, 1:00 PM EDTFLASH FLOODUnion Beach, NJCAR STUCK IN ESTIMATED 2FT OF WATER
May 5, 3:09 PM EDTFLOODHazlet, NJNJ 35 CLOSED AT HAZLET AVENUE.

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, 4.9 hours before the alert went out and 131 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 2017-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 289 square meters per square second.19395878Sfc1 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
872 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
289 m²/s²
0-3 km storm-relative helicity
358 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

196 
WGUS51 KPHI 051654
FFWPHI
NJC025-029-052045-
/O.NEW.KPHI.FF.W.0001.170505T1654Z-170505T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
1254 PM EDT FRI MAY 5 2017

The National Weather Service in Mount Holly NJ  has issued a

* Flash Flood Warning for...
  North central Ocean County in southern New Jersey...
  Eastern Monmouth County in central New Jersey...

* Until 445 PM EDT

* At 1247 PM EDT...Doppler radar indicated heavy rain across 
  portions of the warned area. Over two inches of rain have already 
  fallen. Additional rainfall is expected to occur over the next 
  hour. This will lead to flash flooding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Please report flooding to your local law enforcement agency when you
can do so safely.

&&

LAT...LON 3999 7423 3999 7442 4044 7421 4046 7417
      4045 7416 4045 7413 4042 7404

$$

Kruzdlo
2 follow-up statements
576 
WGUS71 KPHI 051742
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE Mount Holly NJ
142 PM EDT FRI MAY 5 2017

NJC025-029-052045-
/O.CON.KPHI.FF.W.0001.000000T0000Z-170505T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-Monmouth NJ-
142 PM EDT FRI MAY 5 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT Until 445 PM EDT for 
north central Ocean and eastern Monmouth Counties...

At 130 PM EDT...Doppler radar indicated heavy rain was still falling 
across portions of the warned area. Between three and four inches 
have already fallen.

In Monmouth county, the County Office of Emergency Management 
reported that some roads are impassable in Middletown including 
Palmer Avenue, Route 36 and Thompson Avenue, Herb Road, and Main 
Street in Belford. In addition, local police in Howell are reporting 
that Fairfield Road and Route 33 as well as Friendship Road and 
Church Road are impassable. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3999 7423 3999 7442 4044 7421 4046 7417
      4045 7416 4045 7413 4042 7404

$$

Kruzdlo
883 
WGUS71 KPHI 052041
FFSPHI

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE Mount Holly NJ
441 PM EDT FRI MAY 5 2017

NJC025-029-052048-
/O.EXP.KPHI.FF.W.0001.000000T0000Z-170505T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-Monmouth NJ-
441 PM EDT FRI MAY 5 2017

...THE FLASH FLOOD WARNING FOR north central Ocean and eastern
Monmouth Counties WILL EXPIRE AT 445 PM EDT...

The heavy rain has moved out of the area and the flood waters are 
receding. The flash flood warning will be allowed to expire at 445 
pm.

Please continue to heed any road closures.

LAT...LON 3999 7423 3999 7442 4044 7421 4046 7417
      4045 7416 4045 7413 4042 7404

$$

Kruzdlo

The office that day

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

IssuedProductOfficeCountiesLasted
May 5, 7:36 AM EDTSpecial Marine WarningPHI39 min
May 5, 9:12 AM EDTSpecial Weather StatementPHICamden, Gloucester, Salem33 min
May 5, 9:13 AM EDTSpecial Marine WarningPHI62 min
May 5, 9:30 AM EDTSpecial Weather StatementPHIAtlantic30 min
May 5, 9:46 AM EDTSpecial Marine WarningPHI59 min
May 5, 9:50 AM EDTGale WarningPHI6 hr
May 5, 9:56 AM EDTSpecial Marine WarningPHI64 min
May 5, 10:00 AM EDTSpecial Weather StatementPHIBurlington, Ocean45 min
May 5, 10:11 AM EDTSpecial Marine WarningPHI64 min
May 5, 10:33 AM EDTSpecial Weather StatementPHIMonmouth, Ocean42 min
May 5, 10:38 AM EDTSpecial Marine WarningPHI37 min
May 5, 10:47 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Ocean4 hr
May 5, 10:48 AM EDTSpecial Weather StatementPHIAtlantic27 min
May 5, 11:00 AM EDTSpecial Marine WarningPHI60 min
May 5, 11:14 AM EDTAreal Flood AdvisoryPHIGloucester, Salem4 hr
May 5, 11:18 AM EDTSpecial Marine WarningPHI27 min
May 5, 11:20 AM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth5 hr
May 5, 11:21 AM EDTSpecial Weather StatementPHIMonmouth, Ocean54 min
May 5, 11:32 AM EDTSpecial Weather StatementPHICumberland43 min
May 5, 11:33 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more4 hr
May 5, 11:54 AM EDTSpecial Marine WarningPHI66 min
May 5, 12:45 PM EDTSpecial Weather StatementPHIMonmouth, Ocean45 min
May 5, 12:53 PM EDTSpecial Marine WarningPHI67 min
May 5, 1:02 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex4 hr

Nearby

Flash Flood Warnings in New Jersey, 2017Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.