Alert archive / Pennsylvania / Flash Flood Warnings in 2023
Flash Flood Warning 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 16, 2023, 12:49 PM EDT for Bucks County, Philadelphia County, Pennsylvania. It was in force for 3 hr. 2 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
- Jun 16, 2023, 12:49 PM EDT (16:49 UTC)
- Expired
- Jun 16, 2023, 3:50 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bucks County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 58 km from the middle of the area, began a volume at 16:48 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 |
|---|---|---|---|
| Jun 16, 12:54 PM EDT | FLASH FLOOD | 1 Nnw Holmesburg, PA | The Pennypack gauge on the Pennypack Creek rapidly rose above flood stage. |
| Jun 16, 12:54 PM EDT | FLASH FLOOD | 1 Nnw Holmesburg, PA | The Pennypack gauge on the Pennypack Creek rapidly rose above flood stage. |
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, 4.8 hours before the alert went out and 208 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
- 5 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1418 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
670
WGUS51 KPHI 161649
FFWPHI
PAC017-101-162100-
/O.NEW.KPHI.FF.W.0006.230616T1649Z-230616T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
1249 PM EDT Fri Jun 16 2023
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
South Central Bucks County in southeastern Pennsylvania...
Central Philadelphia County in southeastern Pennsylvania...
* Until 500 PM EDT.
* At 1249 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1.5 and 2 inches of
rain have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
* Some locations that may experience flash flooding include...
Philadelphia, Camden, Wissinoming, Tacony, Holmesburg, Northeast
Philadelphia, Kensington, Center City, Ben Franklin Bridge,
Feasterville-Trevose, Feasterville, and Pennsauken.
This includes the following highways...
Pennsylvania Turnpike between mile markers 349 and 352.
Interstate 95 in Pennsylvania between mile markers 20 and 28.
Interstate 76 in Pennsylvania near mile marker 344.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4014 7502 4015 7501 4016 7497 4012 7494
3997 7509 3996 7513 3993 7514 3993 7515
3996 7521 4005 7512 4005 7511 4006 7509
4007 7509
FLASH FLOOD...RADAR INDICATED
$$
Kruzdlo2 follow-up statements
629
WGUS71 KPHI 161751
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
151 PM EDT Fri Jun 16 2023
PAC017-101-162100-
/O.CON.KPHI.FF.W.0006.000000T0000Z-230616T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Philadelphia PA-
151 PM EDT Fri Jun 16 2023
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON FOR SOUTH CENTRAL BUCKS AND CENTRAL PHILADELPHIA
COUNTIES...
At 151 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1.5 and 2 inches of rain have fallen. Flash flooding is ongoing or
expected to begin shortly. The Pennypack Creek in Philadelphia has
crested in minor flood stage due to flash flooding.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that may experience flash flooding include...
Philadelphia, Camden, Wissinoming, Tacony, Holmesburg, Northeast
Philadelphia, Kensington, Center City, Ben Franklin Bridge,
Feasterville-Trevose, Feasterville, and Pennsauken.
This includes the following highways...
Pennsylvania Turnpike between mile markers 349 and 352.
Interstate 95 in Pennsylvania between mile markers 20 and 29.
Interstate 76 in Pennsylvania near mile marker 344.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 4014 7502 4015 7501 4016 7497 4012 7494
3997 7509 3996 7513 3993 7514 3993 7515
3996 7521 4005 7512 4005 7511 4006 7509
4007 7509
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Staarmann087
WGUS71 KPHI 161950
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
350 PM EDT Fri Jun 16 2023
PAC017-101-162000-
/O.CAN.KPHI.FF.W.0006.000000T0000Z-230616T2100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bucks PA-Philadelphia PA-
350 PM EDT Fri Jun 16 2023
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTH CENTRAL BUCKS AND
CENTRAL PHILADELPHIA COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat.
LAT...LON 4014 7502 4015 7501 4016 7497 4012 7494
3997 7509 3996 7513 3993 7514 3993 7515
3996 7521 4005 7512 4005 7511 4006 7509
4007 7509
$$
KruzdloThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 10:26 AM EDT | Special Weather Statement | PHI | Chester | 34 min |
| Jun 16, 10:48 AM EDT | Severe Thunderstorm Warning | PHI | Chester | 42 min |
| Jun 16, 11:02 AM EDT | Special Weather Statement | PHI | Delaware | 28 min |
| Jun 16, 11:10 AM EDT | Tornado Warning | PHI | Berks, Chester | 35 min |
| Jun 16, 11:20 AM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery | 40 min |
| Jun 16, 11:33 AM EDT | Tornado Warning | PHI | Chester, Delaware, Montgomery | 27 min |
| Jun 16, 11:46 AM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 59 min |
| Jun 16, 11:58 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Jun 16, 12:41 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 49 min |
| Jun 16, 12:46 PM EDT | Areal Flood Advisory | PHI | Bucks, Delaware, Montgomery, Philadelphia | 3 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2023Every flash flood warning in 2023
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.