Alert archive / Pennsylvania / River Flood Warnings in 2026

River Flood Warning 2, NWS Philadelphia/Mount Holly

August 27, 2026Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Aug 27, 2026, 9:32 PM EDT for Bucks County, Pennsylvania. It took effect at Aug 28, 2026, 12:16 AM EDT. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Aug 27, 2026, 9:32 PM EDT (01:32 UTC)
In effect from: Aug 28, 2026, 12:16 AM EDT
Expired: Aug 28, 2026, 3:23 AM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

County Bucks County, PA

The radar

The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 01:34 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.

The river

Written for the forecast point Neshaminy Creek near Langhorne (LNGP1). The gauge peaked at 9.39 ft at Aug 28, 2026, 1:00 AM EDT.

Action stage: 8 ft
Minor stage: 9 ft
Moderate stage: 12 ft
Major stage: 14 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01465500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

506 
WGUS41 KPHI 280132
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
Issued by National Weather Service New York NY
932 PM EDT Thu Aug 27 2026

...The National Weather Service in Mount Holly has issued a Flood
Warning for the following rivers in Pennsylvania...

  Neshaminy Creek At Langhorne affecting Bucks County.

For the Neshaminy Creek...including Langhorne...Minor flooding is
forecast.

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.

Additional information is available at www.weather.gov/phi.

The next statement will be issued Friday morning by 800 AM EDT.

&&

PAC017-281200-
/O.NEW.KPHI.FL.W.0002.260828T0416Z-260828T1400Z/
/LNGP1.1.ER.260828T0416Z.260828T0600Z.260828T0815Z.NO/
932 PM EDT Thu Aug 27 2026

...FLOOD WARNING IN EFFECT UNTIL FRIDAY MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Neshaminy Creek at Langhorne.

* WHEN...Until Friday morning.

* IMPACTS...At 10.5 feet, Route 413, near Bridgeton Pike in
  Middletown Township, is subject to closures due to flooding.

* ADDITIONAL DETAILS...
  - At 8:45 PM EDT Thursday the stage was 7.2 feet.
  - Bankfull stage is 6.0 feet.
  - Forecast...The river is expected to rise above flood stage just
    after midnight tonight to a crest of 9.9 feet just after midnight
    tonight. It will then fall below flood stage late tonight.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 9.9
    feet on 12/11/2023.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493


$$

PHI

2 follow-up statements

291 
WGUS81 KPHI 280525
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
Issued by National Weather Service New York NY
125 AM EDT Fri Aug 28 2026

...The Flood Warning continues for the following rivers in
Pennsylvania...

  Neshaminy Creek At Langhorne affecting Bucks County.

For the Neshaminy Creek...including Langhorne...Minor flooding is
forecast.

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.

Additional information is available at www.weather.gov/phi.

The next statement will be issued this morning by 800 AM EDT.

&&

PAC017-281200-
/O.EXT.KPHI.FL.W.0002.000000T0000Z-260828T1200Z/
/LNGP1.1.ER.260828T0249Z.260828T0600Z.260828T0815Z.NO/
125 AM EDT Fri Aug 28 2026

...FLOOD WARNING NOW IN EFFECT UNTIL THIS MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Neshaminy Creek at Langhorne.

* WHEN...Until this morning.

* IMPACTS...At 10.5 feet, Route 413, near Bridgeton Pike in
  Middletown Township, is subject to closures due to flooding.

* ADDITIONAL DETAILS...
  - At 11:45 PM EDT Thursday the stage was 9.4 feet.
  - Bankfull stage is 6.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours ending
    at 11:45 PM EDT Thursday was 9.4 feet.
  - Forecast...The river is expected to rise to a crest of 9.9 feet
    early this morning. It will then fall below flood stage early
    this morning.
  - Flood stage is 9.0 feet.
  - Flood History...This crest compares to a previous crest of 9.9
    feet on 12/11/2023.
  - http://www.weather.gov/safety/flood


&&


All Times EDT  Fld     Observed          Forecasts (2 am)
Location       Stg   Stg   Day/Time      Sat   Sun   Mon

Neshaminy Creek
Langhorne      9.0   9.4   Thu 11 pm     2.6   1.7   MSG



&&

LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493


$$

336 
WGUS81 KPHI 280723
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
Issued by National Weather Service New York NY
323 AM EDT Fri Aug 28 2026

...The Flood Warning is cancelled for the following rivers in
Pennsylvania...

  Neshaminy Creek At Langhorne affecting Bucks County.

PAC017-280830-
/O.CAN.KPHI.FL.W.0002.000000T0000Z-260828T0723Z/
/LNGP1.1.ER.260828T0249Z.000000T0000Z.000000T0000Z.NO/
323 AM EDT Fri Aug 28 2026

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Neshaminy Creek At Langhorne.

* ADDITIONAL DETAILS...
  - At 2:45 AM EDT Friday the stage was 8.0 feet.
  - Bankfull stage is 6.0 feet.
  - The river crested at 9.4 feet at 1:00 AM EDT Friday.
  - Forecast...The river is expected to fall to 1.6 feet Sunday
    evening.
  - http://www.weather.gov/safety/flood


&&


All Times EDT  Fld     Observed          Forecasts (2 am)
Location       Stg   Stg   Day/Time      Sat   Sun   Mon

Neshaminy Creek
Langhorne      9.0   8.0   Fri 2 am      2.6   1.7   MSG



&&

LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493


$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 8:09 PM EDT	Areal Flood Warning	PHI	Bucks, Montgomery	5 hr
Aug 27, 8:16 PM EDT	Flash Flood Warning	PHI	Berks	4 hr
Aug 27, 8:40 PM EDT	Severe Thunderstorm Warning	PHI	Berks	50 min
Aug 27, 9:09 PM EDT	Areal Flood Warning	PHI	Bucks, Chester, Montgomery	4 hr
Aug 27, 9:21 PM EDT	Flash Flood Warning	PHI	Berks	3 hr
Aug 27, 10:22 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester	38 min
Aug 27, 10:36 PM EDT	Flash Flood Warning	PHI	Berks, Chester, Montgomery	3 hr

Nearby

River Flood Warnings in Pennsylvania, 2026 Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.