Alert archive / New Jersey / Flash Flood Warnings in 2017

Flash Flood Warning 2, NWS Philadelphia/Mount Holly

June 19, 2017Monroe County, Pennsylvania; Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 19, 2017, 3:17 PM EDT for Monroe County, Pennsylvania; Sussex County, Warren County, New Jersey. It was in force for 3 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: Jun 19, 2017, 3:17 PM EDT (19:17 UTC)
Expired: Jun 19, 2017, 6:15 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Sussex County, NJ, Warren County, NJ, Monroe County, PA

The radar

The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 19:17 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, 7.3 hours before the alert went out and 166 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1007 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 659 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 193 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

996 
WGUS51 KPHI 191917
FFWPHI
NJC037-041-PAC089-192215-
/O.NEW.KPHI.FF.W.0002.170619T1917Z-170619T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
317 PM EDT MON JUN 19 2017

The National Weather Service in Mount Holly NJ has issued a

* Flash Flood Warning for...
  Sussex County in northwestern New Jersey...
  Northern Warren County in northwestern New Jersey...
  East central Monroe County in northeastern Pennsylvania...

* Until 615 PM EDT

* At 316 PM EDT...Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Up to two inches of rain have 
  already fallen...and more rain is on the way. Flash flooding is 
  expected in the heaviest rainfall bands. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4120 7437 4097 7464 4092 7465 4090 7471
      4092 7473 4091 7476 4085 7482 4105 7531
      4115 7516 4114 7509 4108 7503 4109 7500
      4116 7490 4128 7484 4135 7475 4136 7470

$$

jjm

1 follow-up statement

537 
WGUS71 KPHI 192149
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
549 PM EDT MON JUN 19 2017

NJC037-041-PAC089-192158-
/O.CAN.KPHI.FF.W.0002.000000T0000Z-170619T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sussex NJ-Warren NJ-Monroe PA-
549 PM EDT MON JUN 19 2017

...THE FLASH FLOOD WARNING FOR SUSSEX...NORTHERN WARREN AND EAST
CENTRAL MONROE COUNTIES IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Any rainfall through the evening will be light to moderate 
and end by midnight. Please continue to heed any remaining road 
closures.

LAT...LON 4120 7437 4097 7464 4092 7465 4090 7471
      4092 7473 4091 7476 4085 7482 4105 7531
      4115 7516 4114 7509 4108 7503 4109 7500
      4116 7490 4128 7484 4135 7475 4136 7470

$$

MWG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 12:24 PM EDT	Special Weather Statement	PHI	Monroe	21 min
Jun 19, 12:44 PM EDT	Special Weather Statement	PHI	Carbon	31 min
Jun 19, 12:46 PM EDT	Special Weather Statement	PHI	Berks	29 min
Jun 19, 12:55 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	50 min
Jun 19, 1:25 PM EDT	Special Weather Statement	PHI	Lehigh	35 min
Jun 19, 1:29 PM EDT	Areal Flood Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	4 hr
Jun 19, 1:42 PM EDT	Special Weather Statement	PHI	Berks	63 min
Jun 19, 2:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks	52 min
Jun 19, 2:20 PM EDT	Special Weather Statement	PHI	Northampton	40 min
Jun 19, 2:25 PM EDT	Special Weather Statement	PHI	Berks	50 min
Jun 19, 2:38 PM EDT	Special Weather Statement	PHI	Philadelphia	22 min
Jun 19, 2:43 PM EDT	Special Weather Statement	PHI	Berks, Lehigh, Northampton	47 min
Jun 19, 2:49 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Montgomery, Northampton	41 min
Jun 19, 2:53 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	52 min
Jun 19, 2:57 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	48 min
Jun 19, 3:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	52 min
Jun 19, 3:24 PM EDT	Flash Flood Warning	PHI	Carbon, Lehigh, Monroe, Northampton	3 hr
Jun 19, 3:25 PM EDT	Special Weather Statement	PHI	Chester	50 min
Jun 19, 3:35 PM EDT	Areal Flood Advisory	PHI	Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia	3 hr
Jun 19, 3:35 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Monroe, Northampton	25 min
Jun 19, 3:53 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	37 min
Jun 19, 3:56 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	49 min
Jun 19, 4:07 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	38 min
Jun 19, 4:07 PM EDT	Severe Thunderstorm Warning	PHI	Delaware	38 min
Jun 19, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	41 min
Jun 19, 5:09 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	51 min
Jun 19, 12:03 PM EDT	Special Weather Statement	PHI	Sussex	27 min
Jun 19, 2:33 PM EDT	Areal Flood Advisory	PHI	Sussex	4 hr
Jun 19, 3:45 PM EDT	Special Weather Statement	PHI	Sussex	15 min
Jun 19, 3:54 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Morris, Somerset, Warren	3 hr
Jun 19, 4:24 PM EDT	Special Marine Warning	PHI		36 min
Jun 19, 4:28 PM EDT	Special Weather Statement	PHI	Sussex	17 min
Jun 19, 4:42 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	3 hr
Jun 19, 4:51 PM EDT	Special Weather Statement	PHI	Gloucester	39 min
Jun 19, 4:58 PM EDT	Special Weather Statement	PHI	Union	32 min
Jun 19, 5:05 PM EDT	Special Marine Warning	PHI		55 min
Jun 19, 5:06 PM EDT	Areal Flood Advisory	PHI	Mercer, Middlesex, Monmouth, Somerset	3 hr
Jun 19, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	45 min
Jun 19, 5:28 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	62 min
Jun 19, 5:41 PM EDT	Special Marine Warning	PHI		64 min
Jun 19, 5:44 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more	3 hr
Jun 19, 5:46 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Mercer, Middlesex, Monmouth, Ocean	3 hr
Jun 19, 5:52 PM EDT	Special Weather Statement	PHI	Atlantic, Monmouth, Ocean	38 min
Jun 19, 5:53 PM EDT	Special Marine Warning	PHI		67 min
Jun 19, 6:01 PM EDT	Special Weather Statement	PHI	Cumberland	44 min
Jun 19, 6:13 PM EDT	Special Marine Warning	PHI		92 min
Jun 19, 6:47 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland	43 min
Jun 19, 7:08 PM EDT	Special Marine Warning	PHI		52 min
Jun 19, 7:20 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Ocean	25 min
Jun 19, 7:33 PM EDT	Special Marine Warning	PHI		57 min

Nearby

Flash Flood Warnings in New Jersey, 2017 Flash Flood Warnings in Pennsylvania, 2017 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.