Alert archive / Pennsylvania / Flash Flood Warnings in 2026
Flash Flood Warning 18, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 5, 2026, 9:05 PM EDT for Berks County, Pennsylvania. It was in force for 6 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
- Jul 5, 2026, 9:05 PM EDT (01:05 UTC)
- Expired
- Jul 6, 2026, 3:00 AM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Berks County, PA
The radar
The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 01:06 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 |
|---|---|---|---|
| Jul 5, 9:47 PM EDT | FLASH FLOOD | 1 Sse Muhlenberg Twp, PA | Reports of flooded roadways along 5th Street near US 222 and PA State Highway 12. |
| Jul 5, 10:00 PM EDT | FLASH FLOOD | 1 Nnw Reading, PA | Roadway flooding reported near the intersection of N 6th Street and Windsor Street. |
| Jul 5, 10:03 PM EDT | FLASH FLOOD | 1 Sse Muhlenberg Twp, PA | PA-12 closed due to flooding between N 5th Street and Route 61. |
| Jul 5, 10:03 PM EDT | FLASH FLOOD | 1 Sse Muhlenberg Twp, PA | PA-12 closed due to flooding between N 5th Street and Route 61. |
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, 1.1 hours before the alert went out and 207 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
- 2754 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1313 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted.
574
WGUS51 KPHI 060105
FFWPHI
PAC011-060700-
/O.NEW.KPHI.FF.W.0018.260706T0105Z-260706T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
905 PM EDT Sun Jul 5 2026
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Central Berks County in eastern Pennsylvania...
* Until 300 AM EDT.
* At 905 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1 inch of rain
has fallen. The expected rainfall rate is 2 to 3 inches in 1 hour.
Additional rainfall amounts of 1 to 3 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Life threatening flash flooding caused by
thunderstorms.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets, and underpasses.
* Some locations that may experience flash flooding include...
Reading, Wyomissing, Birdsboro, Fleetwood, Sinking Spring,
Laureldale, Womelsdorf, Wernersville, Robesonia, Leesport,
Bernville and Bechtelsville.
This includes the following highways...
Interstate 176 in Pennsylvania between mile markers 1 and 11.
Pennsylvania Turnpike between mile markers 296 and 298.
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.
&&
LAT...LON 4049 7589 4048 7572 4044 7566 4037 7561
4034 7562 4024 7570 4015 7590 4036 7621
4038 7625 4048 7601
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR
$$
Hoeflich2 follow-up statements
732
WGUS71 KPHI 060151
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
951 PM EDT Sun Jul 5 2026
PAC011-060700-
/O.CON.KPHI.FF.W.0018.000000T0000Z-260706T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berks PA-
951 PM EDT Sun Jul 5 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 AM EDT MONDAY FOR
SOUTHERN BERKS COUNTY...
At 951 PM EDT, emergency management reported thunderstorms producing
heavy rain with flooded roadways in Muhlenberg Township. Between 1
and 2 inches of rain have fallen. The expected rainfall rate is 2 to
3 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding caused by thunderstorms.
SOURCE...Emergency management reported.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets, and underpasses.
Some locations that may experience flash flooding include...
Reading, Wyomissing, Birdsboro, Sinking Spring, Laureldale,
Womelsdorf, Wernersville, Robesonia, Leesport, Bernville,
Bechtelsville and New Morgan.
This includes the following highways...
Interstate 176 in Pennsylvania between mile markers 1 and 11.
Pennsylvania Turnpike between mile markers 296 and 298.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4037 7561 4034 7562 4024 7570 4015 7590
4038 7625 4048 7601 4049 7589 4040 7592
4044 7566
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR
$$
Hoeflich381
WGUS71 KPHI 060651
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
251 AM EDT Mon Jul 6 2026
PAC011-060701-
/O.EXP.KPHI.FF.W.0018.000000T0000Z-260706T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Berks PA-
251 AM EDT Mon Jul 6 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 3 AM EDT EARLY THIS MORNING
FOR SOUTHERN BERKS COUNTY...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
A Flood Watch remains in effect until 800 PM EDT Monday for portions
of northern Delaware, New Jersey, and Pennsylvania.
&&
LAT...LON 4037 7561 4034 7562 4024 7570 4015 7590
4038 7625 4048 7601 4049 7589 4040 7592
4044 7566
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 8:58 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 77 min |
| Jul 5, 9:57 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 63 min |
| Jul 5, 10:05 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 40 min |
| Jul 5, 10:32 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| Jul 5, 10:37 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 38 min |
| Jul 5, 11:00 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 5, 11:30 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 45 min |
| Jul 6, 10:15 AM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 6, 11:13 AM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Jul 6, 2:15 PM EDT | Areal Flood Warning | PHI | Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 6, 2:40 PM EDT | Areal Flood Warning | PHI | Bucks, Philadelphia | 4 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 2026Every flash flood warning in 2026
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.