Alert archive / Pennsylvania / River Flood Warnings in 2019

River Flood Warning 10, NWS Philadelphia/Mount Holly

May 29, 2019Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at May 29, 2019, 8:16 PM EDT for Bucks County, Pennsylvania. It took effect at May 29, 2019, 10:04 PM EDT. It was in force for 9 hr.

The area

The outline as issued.

The facts

Issued: May 29, 2019, 8:16 PM EDT (00:16 UTC)
In effect from: May 29, 2019, 10:04 PM EDT
Expired: May 30, 2019, 7:16 AM EDT
In force: 9 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 00:18 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 10.89 ft at May 30, 2019, 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.

302 
WGUS41 KPHI 300016
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
816 PM EDT Wed May 29 2019

...The National Weather Service in Mount Holly NJ has issued a 
flood warning for the following rivers in Pennsylvania...

  Neshaminy Creek At Langhorne affecting Bucks County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. 
The water may be deeper than you think.

&&

PAC017-300616-
/O.NEW.KPHI.FL.W.0010.190530T0433Z-190530T1300Z/
/LNGP1.1.ER.190530T0433Z.190530T0600Z.190530T0700Z.NO/
816 PM EDT Wed May 29 2019

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Neshaminy Creek at Langhorne.
* From late tonight to Thursday morning...or until the warning 
  is cancelled.
* At 7:15 PM Wednesday the stage was 5.3 feet.
* Flood stage is 9.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage tonight. The river will fall 
  below flood stage by early tomorrow.
* Impact...At 10.5 feet...Route 413, near Bridgeton Pike in 
  Middletown Township, is subject to closures due to flooding.
* Flood history...This crest compares to a previous crest of 9.9 
  feet on Dec 17 2000.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG   DAY TIME     CREST

Neshaminy Creek
  Langhorne              9.0    5.31  Wed 7 PM     10.0   Thu 2 AM 
 
&&
 
LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493
                                      

$$

Kruzdlo

2 follow-up statements

699 
WGUS81 KPHI 300207
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1007 PM EDT Wed May 29 2019

...The Flood Warning continues for the Neshaminy Creek...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think.

&&

PAC017-301208-
/O.EXT.KPHI.FL.W.0010.190530T0204Z-190530T1300Z/
/LNGP1.1.ER.190530T0113Z.190530T0600Z.190530T0700Z.NO/
1007 PM EDT Wed May 29 2019

The Flood Warning continues for
  The Neshaminy Creek at Langhorne.
* until Thursday morning...or until the warning is cancelled.
* At 9:15 PM Wednesday, the creek level was 9.04 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring and is forecast to continue.
* Forecast...The river will continue rising to near 11.0 feet
  overnight. The river level should fall back below flood stage
  early on Thursday morning.
* Impact...At 10.5 feet...Route 413, near Bridgeton Pike in
  Middletown Township, is subject to closures due to flooding.
* Flood history...This crest compares to a previous crest of
  11.3 feet on March 10, 1994.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Neshaminy Creek
  Langhorne              9.0    9.04  Wed 915 PM   11.0   Thu 2 AM 
 
&&
 
LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493
                                      

$$

Iovino

561 
WGUS81 KPHI 301116
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
716 AM EDT Thu May 30 2019

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

  Neshaminy Creek At Langhorne affecting Bucks County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. The water may be
deeper than you think.

&&

PAC017-301146-
/O.CAN.KPHI.FL.W.0010.000000T0000Z-190530T1300Z/
/LNGP1.1.ER.190530T0113Z.190530T0530Z.190530T0946Z.NO/
716 AM EDT Thu May 30 2019

The Flood Warning is cancelled for
  The Neshaminy Creek at Langhorne.
* At  6:15 AM Thursday the stage was 8.4 feet.
* Flood stage is 9.0 feet.
* Fell below flood stage at 5:46 AM Thursday.

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Neshaminy Creek
  Langhorne              9.0    8.41  Thu 6 AM     7.6    Thu 8 AM 
 
&&
 
LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493
                                      

$$

Meola

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 9:57 PM EDT	Areal Flood Warning	PHI	Lehigh	2 hr
May 30, 3:20 AM EDT	Flash Flood Watch	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	18 hr
May 30, 3:33 AM EDT	Dense Fog Advisory	PHI	Bucks, Montgomery	4 hr
May 30, 4:03 PM EDT	Special Weather Statement	PHI	Berks	27 min
May 30, 4:17 PM EDT	Areal Flood Advisory	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	4 hr
May 30, 4:19 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	4 hr
May 30, 4:22 PM EDT	Special Weather Statement	PHI	Delaware	23 min
May 30, 4:25 PM EDT	Special Weather Statement	PHI	Northampton	35 min
May 30, 4:36 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	39 min
May 30, 4:40 PM EDT	Severe Thunderstorm Warning	PHI	Northampton	50 min
May 30, 4:48 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	42 min
May 30, 4:49 PM EDT	Flash Flood Warning	PHI	Lehigh, Northampton	4 hr
May 30, 4:57 PM EDT	Areal Flood Advisory	PHI	Bucks	4 hr
May 30, 5:02 PM EDT	Special Weather Statement	PHI	Philadelphia	28 min
May 30, 5:03 PM EDT	Areal Flood Advisory	PHI	Berks, Bucks, Chester, Montgomery	4 hr
May 30, 5:17 PM EDT	Flash Flood Warning	PHI	Bucks, Delaware, Montgomery, Philadelphia	4 hr
May 30, 5:20 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	40 min
May 30, 6:51 PM EDT	Special Weather Statement	PHI	Berks	24 min
May 30, 7:35 PM EDT	Special Weather Statement	PHI	Bucks, Chester, Montgomery	25 min
May 30, 7:56 PM EDT	Special Weather Statement	PHI	Bucks, Montgomery	34 min

Nearby

River Flood Warnings in Pennsylvania, 2019 Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.