Alert archive / Pennsylvania / River Flood Warnings in 2020

River Flood Warning 23, NWS Philadelphia/Mount Holly

August 4, 2020Berks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Aug 4, 2020, 1:12 PM EDT for Berks County, Pennsylvania. It took effect at Aug 5, 2020, 2:00 AM EDT. It was in force for .

The area

The outline as issued.

The facts

Issued
Aug 4, 2020, 1:12 PM EDT (17:12 UTC)
In effect from
Aug 5, 2020, 2:00 AM EDT
Expired
Aug 4, 2020, 11:04 PM EDT
In force
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Minor

County Berks County, PA

The radar

The Philadelphia radar (KDIX), 127 km from the middle of the area, began a volume at 17:24 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 Schuylkill River at Reading (RDRP1).

Action stage
14.5 ft
Minor stage
15.5 ft
Moderate stage
18 ft
Major stage
22 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01471510, 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.

389 
WGUS41 KPHI 041712
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
112 PM EDT Tue Aug 4 2020

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

  Schuylkill River At Reading affecting Berks County
  Schuylkill River At Pottstown affecting Montgomery County
  Schuylkill River At Norristown affecting Chester...Montgomery
  and Philadelphia Counties
  Schuylkill River At Philadelphia affecting Montgomery and 
  Philadelphia Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC011-042312-
/O.NEW.KPHI.FL.W.0023.200805T0600Z-200805T1200Z/
/RDRP1.1.ER.200805T0600Z.200805T0600Z.200805T0600Z.NO/
112 PM EDT Tue Aug 4 2020

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Schuylkill River at Reading.
* From late tonight to Wednesday morning...or until the 
  warning is cancelled.
* At 12:31 PM Tuesday the stage was 5.8 feet.
* Flood stage is 15.5 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to near flood stage
  after midnight tonight.
* Impact...At 15.5 feet...Flooding begins in Reading. Portions of 
  Water and Canal Streets are flooded.
* Flood history...This crest compares to a previous crest of 15.8 
  feet on Oct 20 1996.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG     STG   DAY TIME    CREST

Schuylkill River
  Reading                15.5    5.79  Tue 1 PM    15.5    Wed 2 AM 
 
&&
 
LAT...LON 4031 7599 4036 7591 4030 7580 4026 7562
      4020 7569 4024 7584             

$$

PAC091-042311-
/O.NEW.KPHI.FL.W.0024.200805T0709Z-200806T0138Z/
/PTNP1.1.ER.200805T0709Z.200805T1200Z.200805T1938Z.NO/
112 PM EDT Tue Aug 4 2020

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Schuylkill River at Pottstown.
* From late tonight to Wednesday evening...or until the warning is
  cancelled.
* At 11:15 AM Tuesday the stage was 5.7 feet.
* Flood stage is 12.5 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage tonight and continue to rise to 
  near 15.0 feet by tomorrow morning. The river will fall below 
  flood stage by tomorrow afternoon.
* Impact...At 13.0 feet...Portions of PA Route 724 along the 
  Berks/Chester county line are closed due to high water, specifically
  Union Township in Berks county and North Coventry Township in 
  Chester county.
* Flood history...This crest compares to a previous crest of 14.8 
  feet on Jan 20 1996.  
 
&&

                         FLD     OBSERVED           FORECAST
 LOCATION                STG     STG   DAY TIME     CREST

Schuylkill River
  Pottstown              12.5    5.65  Tue 11 AM    15.0    Wed 8 AM 
 
&&
 
LAT...LON 4020 7569 4026 7562 4013 7535 4006 7542
                                      

$$

PAC029-091-101-042311-
/O.NEW.KPHI.FL.W.0025.200804T1712Z-200806T1200Z/
/NRSP1.2.ER.200804T1538Z.200805T0600Z.200806T0600Z.NO/
112 PM EDT Tue Aug 4 2020

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Schuylkill River at Norristown.
* Until Thursday morning...or until the warning is cancelled.
* At 12:30 PM Tuesday the stage was 14.5 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 18.0 feet tonight. 
  The river will fall below flood stage early Thursday morning.
* Impact...At 19.0 feet...Flooding occurs at Riverfront Park in Norristown 
  blocking the entrance way. Apartment parking lots are flooded on Dekalb 
  Street in Norristown. Water also begins to enter the parking lots at the 
  Riverside Apartments. Businesses and industry along Dekalb Street and on east 
  Washington Street in Norristown begin to flood. Stoney Creek begins to back 
  up. Saw Mill Run starts to flood. The intersection of Water and Lafayette 
  Streets in Norristown is flooded, affecting businesses.
* Flood history...This crest compares to a previous crest of 17.9 feet on Oct 9 
  2005.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG    DAY TIME    CREST

Schuylkill River
  Norristown             13.0   14.54  Tue 12 PM   18.0    Wed 2 AM 
 
&&
 
LAT...LON 4006 7542 4013 7535 4002 7517 3998 7525
                                      

$$

PAC091-101-042311-
/O.NEW.KPHI.FL.W.0026.200804T1825Z-200806T0417Z/
/PADP1.2.ER.200804T1825Z.200805T0600Z.200805T2217Z.NO/
112 PM EDT Tue Aug 4 2020

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The Schuylkill River at Philadelphia.
* Until late Wednesday night...or until the warning is cancelled.
* At 11:00 AM Tuesday the stage was 9.0 feet.
* Flood stage is 11.0 feet.
* Moderate flooding is forecast.
* Forecast...Rise above flood stage this afternoon and continue to 
  rise to near 13.5 feet tonight. The river will fall below flood 
  stage by tomorrow evening.
* Impact...At 13.0 feet...Main Street in Manayunk is closed from 
  Ridge Avenue to Leverington Street.
* Flood history...This crest compares to a previous crest of 13.6 
  feet on Aug 28 2011.  

&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG    DAY TIME    CREST

Schuylkill River
  Philadelphia           11.0    9.03  Tue 11 AM   13.5    Wed 2 AM 
 
&&
 
LAT...LON 3998 7525 4002 7517 3988 7517 3985 7525
                                      

$$

Kruzdlo
2 follow-up statements
987 
WGUS81 KPHI 042225
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
625 PM EDT Tue Aug 4 2020

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

  Brandywine Creek At Chadds Ford affecting Chester and Delaware Counties
  Brandywine Creek At Wilmington affecting New Castle County
  Neshaminy Creek At Langhorne affecting Bucks County
  Schuylkill River At Pottstown affecting Montgomery County
  Schuylkill River At Philadelphia affecting Montgomery and Philadelphia Counties
...The Flood Warning continues for the following rivers in Pennsylvania...
  Schuylkill River At Reading affecting Berks County
  Schuylkill River At Norristown affecting Chester...Montgomery and Philadelphia
  Counties

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC029-045-050825-
/O.EXT.KPHI.FL.W.0020.000000T0000Z-200805T1500Z/
/CDFP1.2.ER.200804T1713Z.200805T0600Z.200805T0900Z.NO/
625 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The Brandywine Creek at Chadds Ford.
* At  5:30 PM Tuesday the stage was 10.0 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 11.5 feet by after midnight 
  tonight. The river will fall below flood stage early tomorrow.
* Impact...At 11.8 feet...Brandywine River Museum begins to take on water. Route
  1 also takes on water.
* Flood history...This crest compares to a previous crest of 11.4 feet on Aug 14 
  2018.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Chadds Ford            9.0   10.03  Tue 5 PM    11.5    Wed 2 AM 
 
&&
 
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
                                      

$$

DEC003-050825-
/O.EXT.KPHI.FL.W.0021.200804T2300Z-200805T1240Z/
/WMND1.1.ER.200804T2300Z.200805T0300Z.200805T0640Z.UU/
625 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The Brandywine Creek at Wilmington.
* until Wednesday morning...or until the warning is cancelled.
* At  6:15 PM Tuesday the stage was 15.5 feet.
* Flood stage is 16.5 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by this evening and continue to rise to near
  16.8 feet by tonight.The river will fall below flood stage by after midnight 
  tonight.
* Impact...At 17.0 feet...Some flooding begins in the historic Breck's Mill area
  in Montchanin.
* Flood history...This crest compares to a previous crest of 16.7 feet on Sep 8 
  2011.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Brandywine Creek
  Wilmington             16.5   15.47  Tue 6 PM    16.8    Tue 11 PM
 
&&
 
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560
                                      

$$

PAC011-050825-
/O.CON.KPHI.FL.W.0023.200805T0600Z-200805T1200Z/
/RDRP1.1.ER.200805T0600Z.200805T0600Z.200805T0600Z.NO/
625 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The Schuylkill River at Reading.
* from late tonight to Wednesday morning...or until the warning is cancelled.
* At  6:01 PM Tuesday the stage was 8.2 feet.
* Flood stage is 15.5 feet.
* Forecast...The river is expected to rise to near flood stage after midnight 
  tonight.
* Impact...At 15.5 feet...Flooding begins in Reading. Portions of Water and 
  Canal Streets are flooded.
* Flood history...This crest compares to a previous crest of 15.8 feet on Oct 20 
  1996.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Schuylkill River
  Reading                15.5    8.17  Tue 6 PM    15.5    Wed 2 AM 
 
&&
 
LAT...LON 4031 7599 4036 7591 4030 7580 4026 7562
      4020 7569 4024 7584             

$$

PAC091-050825-
/O.EXT.KPHI.FL.W.0024.200804T2224Z-200806T0200Z/
/PTNP1.1.ER.200804T1902Z.200805T0000Z.200805T2000Z.NO/
625 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The Schuylkill River at Pottstown.
* until Wednesday evening...or until the warning is cancelled.
* At  6:01 PM Tuesday the stage was 13.5 feet.
* Flood stage is 12.5 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Forecast...The river will continue rising to near 15.6 feet by this evening. 
  The river will fall below flood stage tomorrow afternoon.
* Flood history...This crest compares to a previous crest of 16.3 feet on Oct 8 
  2005.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Schuylkill River
  Pottstown              12.5   13.49  Tue 6 PM    15.6    Tue 8 PM 
 
&&
 
LAT...LON 4020 7569 4026 7562 4013 7535 4006 7542
                                      

$$

PAC029-091-101-050825-
/O.CON.KPHI.FL.W.0025.000000T0000Z-200806T0800Z/
/NRSP1.3.ER.200804T1538Z.200805T0600Z.200806T0200Z.NO/
625 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The Schuylkill River at Norristown.
* At  5:30 PM Tuesday the stage was 18.1 feet.
* Flood stage is 13.0 feet.
* Moderate flooding is occurring and Major flooding is forecast.
* Forecast...The river will continue rising to near 20.5 feet by after midnight 
  tonight. The river will fall below flood stage late tomorrow evening.
* Impact...At 21.0 feet...Abrams Road is closed in Upper Merion from Hamlet 
  Circle to the Abrams Yard driveway.
* Flood history...This crest compares to a previous crest of 20.8 feet on May 1 
  2014.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Schuylkill River
  Norristown             13.0   18.15  Tue 5 PM    20.5    Wed 2 AM 
 
&&
 
LAT...LON 4006 7542 4013 7535 4002 7517 3998 7525
                                      

$$

PAC091-101-050825-
/O.EXT.KPHI.FL.W.0026.000000T0000Z-200806T0100Z/
/PADP1.2.ER.200804T1733Z.200805T0600Z.200805T1900Z.NO/
625 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The Schuylkill River at Philadelphia.
* At  5:00 PM Tuesday the stage was 12.2 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 15.4 feet by after midnight 
  tonight. The river will fall below flood stage tomorrow afternoon.


 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Schuylkill River
  Philadelphia           11.0   12.16  Tue 5 PM    15.4    Wed 2 AM 
 
&&
 
LAT...LON 3998 7525 4002 7517 3988 7517 3985 7525
                                      

$$

PAC017-050825-
/O.EXT.KPHI.FL.W.0022.000000T0000Z-200805T1100Z/
/LNGP1.2.ER.200804T2010Z.200805T0000Z.200805T0500Z.NO/
625 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The Neshaminy Creek at Langhorne.
* At  5:15 PM Tuesday the stage was 9.8 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will continue rising to near 12.0 feet by this evening. 
  The river will fall below flood stage after midnight tonight.
* Impact...At 12.0 feet...Widespread flooding occurs on Bridle Drive in 
  Middletown Township. The road becomes impassable.
* Flood history...This crest compares to a previous crest of 11.9 feet on Nov 25 
  2018.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Neshaminy Creek
  Langhorne              9.0    9.83  Tue 5 PM    12.0    Tue 8 PM 
 
&&
 
LAT...LON 4019 7498 4020 7491 4008 7486 4006 7493
                                      

$$
439 
WGUS81 KPHI 050304
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1104 PM EDT Tue Aug 4 2020

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

  Schuylkill River At Reading affecting Berks County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

PAC011-050334-
/O.CAN.KPHI.FL.W.0023.000000T0000Z-200805T1200Z/
/RDRP1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1104 PM EDT Tue Aug 4 2020

The Flood Warning is cancelled for
  The Schuylkill River at Reading.
* At 10:31 PM Tuesday the stage was 10.4 feet.
* Flood stage is 15.5 feet.
* Forecast...The river will crest below flood stage at 13.1 feet after midnight 
  tonight.


 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

Schuylkill River
  Reading                15.5   10.41  Tue 11 PM   13.1    Wed 2 AM 
 
&&
 
LAT...LON 4031 7599 4036 7591 4030 7580 4026 7562
      4020 7569 4024 7584             

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 5:17 AM EDTAreal Flood AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia4 hr
Aug 4, 7:23 AM EDTTornado WarningPHIChester, Delaware, Montgomery, Philadelphia20 min
Aug 4, 7:28 AM EDTFlash Flood WarningPHIChester, Delaware, Montgomery3 hr
Aug 4, 8:11 AM EDTFlash Flood WarningPHIBucks, Lehigh, Montgomery, Northampton4 hr
Aug 4, 8:19 AM EDTRiver Flood WarningPHIDelaware15 hr
Aug 4, 8:19 AM EDTTornado WarningPHIBucks26 min
Aug 4, 9:23 AM EDTTornado Warning Tornado observedPHIChester22 min
Aug 4, 9:29 AM EDTTornado WarningPHIMonroe, Northampton31 min
Aug 4, 9:38 AM EDTFlash Flood WarningPHIMonroe, Northampton4 hr
Aug 4, 9:58 AM EDTTornado WarningPHIMonroe16 min
Aug 4, 10:02 AM EDTFlash Flood WarningPHIChester, Delaware4 hr
Aug 4, 10:20 AM EDTFlash Flood WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia4 hr
Aug 4, 10:51 AM EDTTornado WarningPHIMontgomery24 min
Aug 4, 11:01 AM EDTFlash Flood WarningPHIBucks4 hr
Aug 4, 11:13 AM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton4 hr
Aug 4, 11:43 AM EDTFlash Flood WarningPHIBerks, Lehigh, Northampton4 hr
Aug 4, 12:06 PM EDTRiver Flood WarningPHIChester11 hr
Aug 4, 12:37 PM EDTRiver Flood WarningPHIMontgomery14 hr
Aug 4, 12:48 PM EDTRiver Flood WarningPHIChester, Delaware24 hr
Aug 4, 1:01 PM EDTRiver Flood WarningPHIBucks18 hr
Aug 4, 1:12 PM EDTRiver Flood WarningPHIMontgomery26 hr
Aug 4, 1:12 PM EDTRiver Flood WarningPHIChester, Montgomery, Philadelphia43 hr
Aug 4, 1:12 PM EDTRiver Flood WarningPHIMontgomery, Philadelphia35 hr
Aug 4, 1:59 PM EDTAreal Flood WarningPHIChester, Delaware9 hr
Aug 4, 2:09 PM EDTAreal Flood WarningPHIBerks, Chester, Delaware, Montgomery, Philadelphia15 hr
Aug 4, 2:23 PM EDTRiver Flood WarningPHILehigh16 hr
Aug 4, 2:47 PM EDTAreal Flood WarningPHIBucks9 hr
Aug 4, 3:42 PM EDTAreal Flood WarningPHILehigh, Northampton4 hr
Aug 4, 4:39 PM EDTRiver Flood WarningPHIMonroe6 hr
Aug 4, 7:29 PM EDTAreal Flood WarningPHILehigh, Northampton12 hr

Nearby

River Flood Warnings in Pennsylvania, 2020Every river flood warning in 2020

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.