Alert archive / New Jersey / Flash Flood Warnings in 2018
Flash Flood Warning 95, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 7, 2018, 8:32 PM EDT for Camden County, Gloucester County, Salem County, New Jersey; New Castle County, Delaware. It was in force for 2 hr. 3 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
- Sep 7, 2018, 8:32 PM EDT (00:32 UTC)
- Expired
- Sep 7, 2018, 10:42 PM EDT
- In force
- 2 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties New Castle County, DE, Camden County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 76 km from the middle of the area, began a volume at 00:34 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 |
|---|---|---|---|
| Sep 7, 9:30 PM EDT | FLASH FLOOD | 2 Ne Wilmington, DE | GOVERNOR PRINTZ BOULEVARD CLOSED AT EDGEMOOR ROAD DUE TO FLASH FLOODING. |
| Sep 7, 10:00 PM EDT | FLASH FLOOD | 1 Wnw Wilmington, DE | WATER RESCUE REPORTED ON E FRONT STREET. TIME ESTIMATED. |
| Sep 7, 10:00 PM EDT | HEAVY RAIN 3.5 | Mantua Twp, NJ |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.5 hours before the alert went out and 205 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
- 1088 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 1125 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
130
WGUS51 KPHI 080032
FFWPHI
DEC003-NJC007-015-033-080430-
/O.NEW.KPHI.FF.W.0095.180908T0032Z-180908T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
832 PM EDT FRI SEP 7 2018
The National Weather Service in Mount Holly NJ has issued a
* Flash Flood Warning for...
Northern New Castle County in northern Delaware...
Northwestern Salem County in southern New Jersey...
Central Camden County in southern New Jersey...
Gloucester County in southern New Jersey...
* Until 1230 AM EDT.
* At 831 PM EDT, Doppler radar indicated showers and thunderstorms
producing very heavy rain across the warned area. Up to two inches
of rain have already fallen in portions of the warned area. Flash
flooding is expected to occur in the areas of heaviest rain.
* Some locations that could experience flooding include...
Wilmington, Voorhees, Glassboro, Lindenwold, Pitman, Clayton,
Carneys Point, Berlin, Elsmere, Penns Grove, Woodstown, Woodbury
Heights, Swedesboro, Chesilhurst, Newport, Arden, Talleyville,
Greenville, Mullica Hill and Hockessin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
&&
LAT...LON 3981 7570 3984 7559 3984 7550 3980 7541
3985 7534 3982 7534 3982 7512 3988 7494
3988 7493 3979 7490 3978 7486 3966 7489
3965 7532 3976 7575
$$
Gorse2 follow-up statements
464
WGUS71 KPHI 080118
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
918 PM EDT FRI SEP 7 2018
DEC003-NJC007-015-033-080430-
/O.CON.KPHI.FF.W.0095.000000T0000Z-180908T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Salem NJ-Camden NJ-Gloucester NJ-
918 PM EDT FRI SEP 7 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM EDT FOR
NORTHERN NEW CASTLE...NORTHWESTERN SALEM...CENTRAL CAMDEN AND
GLOUCESTER COUNTIES...
At 915 PM EDT, Doppler radar indicated showers and thunderstorms
producing very heavy rain across much of the warned area. One to
three inches of rain has already fallen in several areas, and
doppler radar indicates rainfall rates of 2 to 3 inches per hour
occurring especially from northern Delaware into portions of Salem
and Gloucester counties. Flash flooding is expected where the
heaviest rain continues to occur.
Some locations that could experience flooding include...
Wilmington, Voorhees, Glassboro, Lindenwold, Pitman, Clayton, Carneys
Point, Berlin, Elsmere, Penns Grove, Woodstown, Woodbury Heights,
Swedesboro, Chesilhurst, Newport, Arden, Talleyville, Greenville,
Mullica Hill and Hockessin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
&&
LAT...LON 3981 7570 3984 7559 3984 7550 3980 7541
3985 7534 3982 7534 3982 7512 3988 7494
3988 7493 3979 7490 3978 7486 3966 7489
3965 7532 3976 7575
$$
Gorse109
WGUS71 KPHI 080242
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
1042 PM EDT FRI SEP 7 2018
DEC003-NJC007-015-033-080251-
/O.CAN.KPHI.FF.W.0095.000000T0000Z-180908T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Salem NJ-Camden NJ-Gloucester NJ-
1042 PM EDT FRI SEP 7 2018
...THE FLASH FLOOD WARNING FOR NORTHERN NEW CASTLE...NORTHWESTERN
SALEM...CENTRAL CAMDEN AND GLOUCESTER COUNTIES IS CANCELLED...
The heavy rain has ended. Although Flash Flooding is no longer
expected to pose a threat, widespread flooding continues, and an
Areal Flood Warning is now in effect. Please continue to heed any
remaining road closures.
LAT...LON 3981 7570 3984 7559 3984 7550 3980 7541
3985 7534 3982 7534 3982 7512 3988 7494
3988 7493 3979 7490 3978 7486 3966 7489
3965 7532 3976 7575
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 10:41 PM EDT | Areal Flood Warning | PHI | Camden, Gloucester | 8 hr |
| Sep 7, 11:19 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 9 days |
| Sep 7, 11:20 PM EDT | Areal Flood Warning | PHI | Camden, Gloucester, Salem | 4 hr |
| Sep 8, 1:21 AM EDT | Special Marine Warning | PHI | 54 min | |
| Sep 8, 1:27 AM EDT | Special Marine Warning | PHI | 63 min | |
| Sep 8, 2:17 AM EDT | Special Marine Warning | PHI | 42 min | |
| Sep 8, 2:43 AM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 6 hr |
| Sep 8, 3:34 AM EDT | Flood Watch | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Hunterdon and 9 more | 60 hr |
| Sep 8, 4:29 AM EDT | Areal Flood Advisory | PHI | Burlington | 4 hr |
| Sep 8, 5:31 AM EDT | Coastal Flood Watch | PHI | Cape May | 11 hr |
| Sep 8, 5:31 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cumberland, Middlesex, Monmouth, Ocean and 1 more | 21 hr |
| Sep 8, 5:31 AM EDT | Coastal Flood Advisory | PHI | Burlington, Camden, Gloucester, Mercer | 24 hr |
| Sep 8, 8:15 AM EDT | Areal Flood Advisory | PHI | Camden, Gloucester, Salem | 119 min |
| Sep 8, 3:36 PM EDT | Gale Warning | PHI | 48 hr | |
| Sep 8, 4:49 PM EDT | Coastal Flood Watch | PHI | Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean and 1 more | 7 hr |
| Sep 8, 4:49 PM EDT | Coastal Flood Warning | PHI | Cape May, Cumberland | 6 hr |
| Sep 8, 4:49 PM EDT | High Surf Advisory | PHI | Atlantic, Cape May, Monmouth, Ocean | 60 hr |
| Sep 7, 11:40 PM EDT | Special Weather Statement | PHI | Sussex | 35 min |
| Sep 8, 12:11 AM EDT | Flash Flood Warning | PHI | Sussex | 4 hr |
| Sep 8, 11:54 AM EDT | Special Weather Statement | PHI | Sussex | 21 min |
Nearby
Flash Flood Warnings in New Jersey, 2018Flash Flood Warnings in Delaware, 2018Every flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.