Alert archive / New Jersey / Flash Flood Warnings in 2019
Flash Flood Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at May 29, 2019, 5:27 PM EDT for 5 counties in New Jersey; 4 counties in Pennsylvania. It was in force for 4 hr. 4 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 29, 2019, 5:27 PM EDT (21:27 UTC)
- Expired
- May 29, 2019, 9:30 PM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Morris County, NJ, Somerset County, NJ, Bucks County, PA, Chester County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 85 km from the middle of the area, began a volume at 21:29 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 |
|---|---|---|---|
| May 29, 6:20 PM EDT | FLASH FLOOD | Feasterville-Trevose, PA | VIDEO RECEIVED OF FAST MOVING WATER FLOWING DOWN A ROADWAY. |
| May 29, 6:22 PM EDT | FLASH FLOOD | 3 W Lower Southampton T, PA | AT THE INTERSECTION OF STREET ROAD AND DAVISVILLE ROAD, THE ROAD IMPASSIBLE. MOTORISTS STUCK IN WATER. |
| May 29, 7:00 PM EDT | FLASH FLOOD | 1 Sse Marlborough Twp, PA | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 SSE MARLBOROUGH TWP. SEVERAL ROADS IMPASSABLE IN SUMNEYTOWN. |
| May 29, 8:30 PM EDT | FLASH FLOOD | 2 S Langhorne, PA | *** 1 FATAL *** MALE TEENAGER FELL OUT OF KAYAK ON NESHAMINY CREEK NEAR PENNDEL. HE LATER DIED AT AN AREA HOSPITAL. LAW ENFORCEMENT INDICATED RIVER WAS FLOODING AT THE TIME AND LIKELY CONTRIBUTED TO HIS DEATH. TIME AND LOCATION ESTIMATED. |
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, 9.5 hours before the alert went out and 143 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
- 415 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- -157 m²/s²
- 0-3 km storm-relative helicity
- -76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
081
WGUS51 KPHI 292127
FFWPHI
NJC019-021-023-027-035-PAC017-029-091-101-300130-
/O.NEW.KPHI.FF.W.0008.190529T2127Z-190530T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
527 PM EDT Wed May 29 2019
The National Weather Service in Mount Holly NJ has issued a
* Flash Flood Warning for...
Morris County in northern New Jersey...
Hunterdon County in northwestern New Jersey...
Mercer County in central New Jersey...
Somerset County in northern New Jersey...
Northern Middlesex County in northern New Jersey...
Central Montgomery County in southeastern Pennsylvania...
Bucks County in southeastern Pennsylvania...
North central Chester County in southeastern Pennsylvania...
Northeastern Philadelphia County in southeastern Pennsylvania...
* Until 930 PM EDT.
* At 522 PM EDT, Doppler radar indicated multiple rounds of
thunderstorms, producing heavy rain, that will move across the
warned area during the next hour or two. Flash flooding is likely
in areas that receive repetitive rounds of heavy rain.
* Some locations that could experience flooding include...
Philadelphia, Trenton, New Brunswick, Morristown, Somerville,
Somerset, Edison, Bensalem, East Brunswick, Bridgewater, South
Brunswick, North Brunswick, Ewing, Carteret, Pottstown, Dover,
Lansdale, Madison, West Norriton and Middlesex.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 4008 7491 4019 7572 4054 7508 4106 7450
4104 7450 4105 7445 4102 7443 4100 7429
4090 7427 4091 7433 4083 7433 4076 7438
4075 7436 4067 7446 4066 7445 4065 7440
4060 7446 4059 7421
$$
Kruzdlo1 follow-up statement
711 WGUS71 KPHI 292328 FFSPHI Flash Flood Statement National Weather Service Mount Holly NJ 728 PM EDT Wed May 29 2019 NJC027-292337- /O.CAN.KPHI.FF.W.0008.000000T0000Z-190530T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Morris NJ- 728 PM EDT Wed May 29 2019 ...THE FLASH FLOOD WARNING FOR MORRIS COUNTY IS CANCELLED... Flooding is no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 4008 7491 4019 7572 4053 7509 4047 7437 $$ NJC019-021-023-035-PAC017-029-091-101-300130- /O.CON.KPHI.FF.W.0008.000000T0000Z-190530T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hunterdon NJ-Mercer NJ-Somerset NJ-Middlesex NJ-Montgomery PA- Bucks PA-Chester PA-Philadelphia PA- 728 PM EDT Wed May 29 2019 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM EDT FOR SOUTHEASTERN HUNTERDON...MERCER...SOUTHERN SOMERSET...WEST CENTRAL MIDDLESEX...CENTRAL MONTGOMERY...BUCKS...NORTH CENTRAL CHESTER AND NORTHEASTERN PHILADELPHIA COUNTIES... At 727 PM EDT, Doppler radar indicated the heavy rain was coming to an end. Although the rain was ending, runoff will continue into the evening. The flash flood warning remains in effect until 930 pm. Some locations that could experience flooding include... Philadelphia, Trenton, New Brunswick, Bensalem, East Brunswick, South Brunswick, North Brunswick, Ewing, Pottstown, Lansdale, West Norriton, East Norriton, Princeton, Perkasie, Doylestown, Byram, Hatboro, Souderton, Bedminster and Ambler. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 4008 7491 4019 7572 4053 7509 4047 7437 $$ Kruzdlo
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 8:23 PM EDT | Tornado Warning | PHI | Warren | 37 min |
| May 28, 8:30 PM EDT | Tornado Warning | PHI | Morris, Sussex | 30 min |
| May 28, 8:34 PM EDT | Special Marine Warning | PHI | 41 min | |
| May 28, 8:35 PM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland | 55 min |
| May 28, 8:37 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 25 min |
| May 28, 8:44 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset, Sussex, Warren | 61 min |
| May 28, 8:50 PM EDT | Areal Flood Advisory | PHI | Cape May | 78 min |
| May 28, 8:59 PM EDT | Special Marine Warning | PHI | 61 min | |
| May 28, 9:33 PM EDT | Areal Flood Advisory | PHI | Morris, Somerset | 63 min |
| May 28, 9:47 PM EDT | Special Marine Warning | PHI | 43 min | |
| May 28, 9:52 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 23 min |
| May 28, 9:57 PM EDT | Special Marine Warning | PHI | 44 min | |
| May 28, 10:03 PM EDT | Special Weather Statement | PHI | Atlantic | 12 min |
| May 28, 10:28 PM EDT | Special Marine Warning | PHI | 58 min | |
| May 28, 10:30 PM EDT | Special Weather Statement | PHI | Ocean | 45 min |
| May 28, 10:33 PM EDT | Special Weather Statement | PHI | Burlington | 27 min |
| May 28, 10:34 PM EDT | Special Weather Statement | PHI | Monmouth | 26 min |
| May 28, 11:00 PM EDT | Special Weather Statement | PHI | Burlington, Ocean | 30 min |
| May 28, 11:07 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 38 min |
| May 28, 11:21 PM EDT | Special Marine Warning | PHI | 39 min | |
| May 28, 11:35 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 25 min |
| May 28, 11:57 PM EDT | Special Marine Warning | PHI | 48 min | |
| May 29, 3:18 AM EDT | Flash Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 7 more | 18 hr |
| May 29, 3:10 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 65 min |
| May 29, 3:38 PM EDT | Tornado Warning | PHI | Hunterdon | 37 min |
| May 29, 3:43 PM EDT | Flash Flood Warning | PHI | Sussex, Warren | 4 hr |
| May 29, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 47 min |
| May 29, 4:04 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 41 min |
| May 29, 4:09 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 51 min |
| May 29, 4:13 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 47 min |
| May 29, 4:16 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 27 min |
| May 29, 4:27 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 51 min |
| May 29, 4:28 PM EDT | Special Weather Statement | PHI | Morris | 32 min |
| May 29, 4:35 PM EDT | Special Weather Statement | PHI | Sussex | 25 min |
| May 29, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Ocean | 53 min |
| May 29, 4:53 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 67 min |
| May 29, 5:01 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris | 29 min |
| May 29, 5:03 PM EDT | Special Marine Warning | PHI | 57 min | |
| May 29, 5:14 PM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Sussex, Warren | 3 hr |
| May 29, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Sussex, Warren | 34 min |
| May 29, 5:33 PM EDT | Tornado Warning | PHI | Burlington, Mercer, Monmouth | 27 min |
| May 29, 5:39 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth, Ocean and 1 more | 66 min |
| May 29, 5:45 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Sussex, Warren | 30 min |
| May 29, 6:01 PM EDT | Special Marine Warning | PHI | 59 min | |
| May 29, 6:02 PM EDT | Special Weather Statement | PHI | Salem | 28 min |
| May 29, 6:06 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 4 hr |
| May 29, 6:06 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 24 min |
| May 29, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 61 min |
| May 29, 6:35 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Ocean | 3 hr |
| May 29, 6:35 PM EDT | Special Marine Warning | PHI | 55 min | |
| May 29, 7:08 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 52 min |
| May 29, 7:12 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more | 3 hr |
| May 29, 7:15 PM EDT | Special Marine Warning | PHI | 60 min | |
| May 29, 7:25 PM EDT | Special Marine Warning | PHI | 65 min | |
| May 29, 7:33 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Cumberland, Ocean | 42 min |
| May 29, 7:35 PM EDT | Special Marine Warning | PHI | 85 min | |
| May 28, 9:17 PM EDT | River Flood Warning | PHI | Chester | 101 min |
| May 29, 2:19 PM EDT | Special Weather Statement | PHI | Lehigh | 41 min |
| May 29, 2:26 PM EDT | Special Weather Statement | PHI | Montgomery | 34 min |
| May 29, 2:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 60 min |
| May 29, 2:48 PM EDT | Special Weather Statement | PHI | Monroe | 27 min |
| May 29, 2:59 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 46 min |
| May 29, 3:17 PM EDT | Tornado Warning | PHI | Bucks, Lehigh | 28 min |
| May 29, 3:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 46 min |
| May 29, 3:29 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 46 min |
| May 29, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 62 min |
| May 29, 4:18 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery, Northampton | 42 min |
| May 29, 4:42 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 48 min |
| May 29, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Chester, Lehigh, Montgomery, Northampton | 40 min |
| May 29, 4:55 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 4 hr |
| May 29, 5:08 PM EDT | Tornado Warning | PHI | Bucks, Montgomery | 27 min |
| May 29, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery, Philadelphia | 41 min |
| May 29, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 53 min |
Nearby
Flash Flood Warnings in New Jersey, 2019Flash Flood Warnings in Pennsylvania, 2019Every flash flood warning in 2019
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.