Alert archive / Pennsylvania / River Flood Warnings in 2021

River Flood Warning 37, NWS Philadelphia/Mount Holly

September 1, 2021Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this river flood warning at Sep 1, 2021, 4:12 PM EDT for Carbon County, Pennsylvania. It took effect at Sep 1, 2021, 8:22 PM EDT. It was in force for 11 hr.

The area

The outline as issued.

The facts

Issued
Sep 1, 2021, 4:12 PM EDT (20:12 UTC)
In effect from
Sep 1, 2021, 8:22 PM EDT
Expired
Sep 2, 2021, 7:29 AM EDT
In force
11 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Minor

County Carbon County, PA

The radar

The Philadelphia radar (KDIX), 143 km from the middle of the area, began a volume at 20:13 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 Lehigh River at Lehighton (LHTP1). The gauge peaked at 14.05 ft at Sep 2, 2021, 1:00 AM EDT.

actionminormoderatemajor5101509/0109/0209/03
Action stage
9 ft
Minor stage
10 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 01449000, 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.

985 
WGUS41 KPHI 012012
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
412 PM EDT Wed Sep 1 2021

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

  Lehigh River At Walnutport affecting Lehigh and Northampton 
  Counties.

  Lehigh River At Bethlehem affecting Lehigh and Northampton 
  Counties.

  Lehigh River At Lehighton affecting Carbon County.

For the Lehigh River...including Lehighton, Walnutport, Bethlehem...
Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

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


PAC077-095-020815-
/O.NEW.KPHI.FL.W.0035.210902T0100Z-210903T1000Z/
/WNTP1.1.ER.210902T0100Z.210902T1200Z.210903T0400Z.NO/
412 PM EDT Wed Sep 1 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Lehigh River At Walnutport.
* From this evening to Friday morning.
* At 3:30 PM EDT Wednesday the stage was 5.2 feet.
* Flood stage is 8.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this evening to a crest of 10.4 feet tomorrow morning. It will 
  then fall below flood stage early Friday morning.
* Impact...At 6.0 feet, Minor flooding begins downstream at 
  Catasaqua and Hokendaqua.
* Flood History...This crest compares to a previous crest of 10.5 
  feet on 04/03/2005.

&&


            Fld   Observed           Forecasts (2 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lehigh River
Walnutport  8.0   5.2   Wed 3 pm EDT 9.2   6.9   6.0          





&&

LAT...LON 4077 7563 4081 7559 4064 7542 4059 7545

$$

PAC077-095-020815-
/O.NEW.KPHI.FL.W.0036.210902T0800Z-210903T0324Z/
/BETP1.1.ER.210902T0800Z.210902T1200Z.210902T2124Z.NO/
412 PM EDT Wed Sep 1 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Lehigh River At Bethlehem.
* From late tonight to Thursday evening.
* At 3:30 PM EDT Wednesday the stage was 4.8 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  tonight to a crest of 19.0 feet tomorrow morning. It will then 
  fall below flood stage tomorrow afternoon.
* Impact...At 14.0 feet, Flooding begins upstream in Allentown. 
  Backwater begins to effect the Little Lehigh and Jordan creeks.
* Impact...At 15.0 feet, The islands in the Allentown area begin to 
  flood.
* Impact...At 15.5 feet, Sand Island Recreational Area in Bethlehem 
  is flooded.
* Impact...At 16.0 feet, Wilson Avenue takes on water.
* Flood History...This crest compares to a previous crest of 18.7 
  feet on 08/24/1933.

&&


            Fld   Observed           Forecasts (2 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lehigh River
Bethlehem   16.0  4.8   Wed 3 pm EDT 17.7  9.6   7.0          





&&

LAT...LON 4059 7545 4063 7543 4065 7534 4071 7520
      4066 7520 4061 7533

$$

PAC025-020815-
/O.NEW.KPHI.FL.W.0037.210902T1200Z-210902T1800Z/
/LHTP1.1.ER.210902T1200Z.210902T1200Z.210902T1200Z.NO/
412 PM EDT Wed Sep 1 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Lehigh River At Lehighton.
* From Thursday morning to Thursday afternoon.
* At 4:00 PM EDT Wednesday the stage was 6.6 feet.
* Flood stage is 10.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 10.0 feet 
  tomorrow morning.
* Impact...At 9.0 feet, Open adjacent land in Lehigh Gorge State 
  Park floods.
* Impact...At 10.0 feet, Flooding begins in Jim Thorpe.
* Flood History...This crest compares to a previous crest of 10.5 
  feet on 04/11/1993.

&&


            Fld   Observed           Forecasts (2 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lehigh River
Lehighton   10.0  6.6   Wed 4 pm EDT 9.2   7.0   6.2          





&&

LAT...LON 4083 7573 4085 7567 4081 7564 4081 7559
      4077 7563 4077 7567

$$

Kruzdlo
4 follow-up statements
936 
WGUS81 KPHI 020022
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
822 PM EDT Wed Sep 1 2021

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

  Lehigh River At Lehighton affecting Carbon County.

  Lehigh River At Walnutport affecting Lehigh and Northampton 
  Counties.

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

  Lehigh River At Bethlehem affecting Lehigh and Northampton 
  Counties.

For the Lehigh River...including Lehighton, Walnutport, Bethlehem...
Minor flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

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


PAC025-021230-
/O.EXT.KPHI.FL.W.0037.210902T0022Z-210902T2046Z/
/LHTP1.1.ER.210901T2322Z.210902T1200Z.210902T1446Z.NO/
822 PM EDT Wed Sep 1 2021

...The Flood Warning is now in effect until tomorrow afternoon...

The Flood Warning continues for
  the Lehigh River At Lehighton.
* From this evening to Thursday afternoon.
* At 8:01 PM EDT Wednesday the stage was 10.6 feet.
* Flood stage is 10.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:01 PM EDT Wednesday was 10.6 feet.
* Forecast...The river is expected to rise to a crest of 10.6 feet 
  tomorrow morning. It will then fall below flood stage late 
  tomorrow morning.
* Impact...At 9.0 feet, Open adjacent land in Lehigh Gorge State 
  Park floods.
* Impact...At 10.0 feet, Flooding begins in Jim Thorpe.
* Flood History...This crest compares to a previous crest of 10.5 
  feet on 04/11/1993.

&&


            Fld   Observed           Forecasts (8 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lehigh River
Lehighton   10.0  10.6  Wed 8 pm EDT 8.4   6.8   MSG          





&&

LAT...LON 4083 7573 4085 7567 4081 7564 4081 7559
      4077 7563 4077 7567

$$

PAC077-095-021230-
/O.EXT.KPHI.FL.W.0035.210902T0022Z-210903T1000Z/
/WNTP1.1.ER.210901T2336Z.210902T1200Z.210903T0400Z.NO/
822 PM EDT Wed Sep 1 2021

...The Flood Warning is now in effect until Friday morning...

The Flood Warning continues for
  the Lehigh River At Walnutport.
* From this evening to Friday morning.
* At 8:01 PM EDT Wednesday the stage was 8.5 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:01 PM EDT Wednesday was 8.5 feet.
* Forecast...The river is expected to rise to a crest of 10.4 feet 
  tomorrow morning. It will then fall below flood stage early Friday 
  morning.
* Impact...At 6.0 feet, Minor flooding begins downstream at 
  Catasaqua and Hokendaqua.
* Flood History...This crest compares to a previous crest of 10.5 
  feet on 04/03/2005.

&&


            Fld   Observed           Forecasts (8 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lehigh River
Walnutport  8.0   8.5   Wed 8 pm EDT 8.4   6.6   MSG          





&&

LAT...LON 4077 7563 4081 7559 4064 7542 4059 7545

$$

PAC077-095-021230-
/O.CON.KPHI.FL.W.0036.210902T0800Z-210903T0324Z/
/BETP1.1.ER.210902T0800Z.210902T1200Z.210902T2124Z.NO/
822 PM EDT Wed Sep 1 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Lehigh River At Bethlehem.
* From late tonight to Thursday evening.
* At 8:02 PM EDT Wednesday the stage was 9.4 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  tonight to a crest of 19.0 feet tomorrow morning. It will then 
  fall below flood stage tomorrow afternoon.
* Impact...At 14.0 feet, Flooding begins upstream in Allentown. 
  Backwater begins to effect the Little Lehigh and Jordan creeks.
* Impact...At 15.0 feet, The islands in the Allentown area begin to 
  flood.
* Impact...At 15.5 feet, Sand Island Recreational Area in Bethlehem 
  is flooded.
* Impact...At 16.0 feet, Wilson Avenue takes on water.
* Flood History...This crest compares to a previous crest of 18.7 
  feet on 08/24/1933.

&&


            Fld   Observed           Forecasts (8 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lehigh River
Bethlehem   16.0  9.4   Wed 8 pm EDT 14.7  8.7   MSG          





&&

LAT...LON 4059 7545 4063 7543 4065 7534 4071 7520
      4066 7520 4061 7533

$$

CMS
437 
WGUS41 KPHI 020140
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
940 PM EDT Wed Sep 1 2021

...Forecast flooding changed from Minor to Moderate severity and 
increased in duration for the following rivers in Pennsylvania...

  Lehigh River At Lehighton affecting Carbon County.

For the Lehigh River...including Lehighton, Walnutport, Bethlehem...
Moderate flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

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


PAC025-021345-
/O.EXT.KPHI.FL.W.0037.000000T0000Z-210903T0142Z/
/LHTP1.2.ER.210901T2322Z.210902T0600Z.210902T1942Z.NO/
940 PM EDT Wed Sep 1 2021

...Forecast flooding increased from Minor to Moderate severity and 
increased in duration until late tomorrow evening...

The Flood Warning continues for
  the Lehigh River At Lehighton.
* Until Thursday evening.
* At 9:30 PM EDT Wednesday the stage was 12.0 feet.
* Flood stage is 10.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 9:30 PM EDT Wednesday was 12.0 feet.
* Forecast...The river is expected to rise to a crest of 13.2 feet 
  just after midnight tonight. It will then fall below flood stage 
  tomorrow afternoon.
* Impact...At 9.0 feet, Open adjacent land in Lehigh Gorge State 
  Park floods.
* Impact...At 10.0 feet, Flooding begins in Jim Thorpe.
* Impact...At 12.0 feet, River Street begins to flood. Trails in 
  Lehigh Gorge State Park are flooded.
* Impact...At 14.0 feet, Evacuations occur on River Street.
* Flood History...This crest compares to a previous crest of 13.0 
  feet on 03/11/2011.

&&


            Fld   Observed           Forecasts (8 pm EDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lehigh River
Lehighton   10.0  12.0  Wed 9 pm EDT 9.0   6.9   6.1          





&&

LAT...LON 4083 7573 4085 7567 4081 7564 4081 7559
      4077 7563 4077 7567

$$

CMS
817 
WGUS41 KPHI 020334
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1134 PM EDT Wed Sep 1 2021

...Forecast flooding changed from Moderate to Major severity and 
increased in duration for the following rivers in Pennsylvania...

  Lehigh River At Lehighton affecting Carbon County.

  Lehigh River At Walnutport affecting Lehigh and Northampton 
  Counties.

  Lehigh River At Bethlehem affecting Lehigh and Northampton 
  Counties.

For the Lehigh River...including Lehighton, Walnutport, Bethlehem...
Major 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.


PAC025-021545-
/O.EXT.KPHI.FL.W.0037.000000T0000Z-210902T2100Z/
/LHTP1.3.ER.210901T2322Z.210902T0600Z.210902T1500Z.NO/
1134 PM EDT Wed Sep 1 2021

...Forecast flooding increased from Moderate to Major severity and 
increased in duration until tomorrow afternoon...

The Flood Warning continues for
  the Lehigh River At Lehighton.
* Until Thursday afternoon.
* At 11:15 PM EDT Wednesday the stage was 13.5 feet.
* Flood stage is 10.0 feet.
* Moderate flooding is occurring and major flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 11:15 PM EDT Wednesday was 13.5 feet.
* Forecast...The river is expected to rise to a crest of 14.6 feet 
  just after midnight tonight. It will then fall below flood stage 
  late tomorrow morning.
* Impact...At 9.0 feet, Open adjacent land in Lehigh Gorge State 
  Park floods.
* Impact...At 10.0 feet, Flooding begins in Jim Thorpe.
* Impact...At 12.0 feet, River Street begins to flood. Trails in 
  Lehigh Gorge State Park are flooded.
* Impact...At 14.0 feet, Evacuations occur on River Street.
* Flood History...This crest compares to a previous crest of 13.5 
  feet on 06/28/2006.

&&


            Fld   Observed           Forecasts (2 am EDT)     
Location    Stg   Stg   Day/Time     Fri   Sat   Sun          

Lehigh River
Lehighton   10.0  13.5  Wed 11 pm ED 6.7   5.5   MSG          





&&

LAT...LON 4083 7573 4085 7567 4081 7564 4081 7559
      4077 7563 4077 7567

$$

PAC077-095-021545-
/O.EXT.KPHI.FL.W.0035.000000T0000Z-210903T0640Z/
/WNTP1.2.ER.210901T2336Z.210902T0800Z.210903T0040Z.NO/
1134 PM EDT Wed Sep 1 2021

...Forecast flooding increased from Minor to Moderate severity and 
increased in duration until early Friday morning...

The Flood Warning continues for
  the Lehigh River At Walnutport.
* Until late Thursday night.
* At 11:16 PM EDT Wednesday the stage was 11.6 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 11:16 PM EDT Wednesday was 11.6 feet.
* Forecast...The river is expected to rise to a crest of 13.2 feet 
  late tonight. It will then fall below flood stage tomorrow evening.
* Impact...At 6.0 feet, Minor flooding begins downstream at 
  Catasaqua and Hokendaqua.
* Impact...At 13.0 feet, Flooding begins just downstream from the 
  Slatington Walnutport Bridge.
* Flood History...This crest compares to a previous crest of 12.7 
  feet on 03/11/2011.

&&


            Fld   Observed           Forecasts (2 am EDT)     
Location    Stg   Stg   Day/Time     Fri   Sat   Sun          

Lehigh River
Walnutport  8.0   11.6  Wed 11 pm ED 7.2   5.8   MSG          





&&

LAT...LON 4077 7563 4081 7559 4064 7542 4059 7545

$$

PAC077-095-021545-
/O.EXT.KPHI.FL.W.0036.210902T0607Z-210903T0101Z/
/BETP1.2.ER.210902T0607Z.210902T1200Z.210902T1901Z.NO/
1134 PM EDT Wed Sep 1 2021

...Forecast flooding increased from Minor to Moderate severity and 
increased in duration until late tomorrow evening...

The Flood Warning continues for
  the Lehigh River At Bethlehem.
* Until Thursday evening.
* At 11:16 PM EDT Wednesday the stage was 14.5 feet.
* Flood stage is 16.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage just 
  after midnight tonight to a crest of 20.6 feet tomorrow morning. 
  It will then fall below flood stage tomorrow afternoon.
* Impact...At 14.0 feet, Flooding begins upstream in Allentown. 
  Backwater begins to effect the Little Lehigh and Jordan creeks.
* Impact...At 15.0 feet, The islands in the Allentown area begin to 
  flood.
* Impact...At 15.5 feet, Sand Island Recreational Area in Bethlehem 
  is flooded.
* Impact...At 16.0 feet, Wilson Avenue takes on water.
* Flood History...This crest compares to a previous crest of 20.0 
  feet on 06/23/1972.

&&


            Fld   Observed           Forecasts (2 am EDT)     
Location    Stg   Stg   Day/Time     Fri   Sat   Sun          

Lehigh River
Bethlehem   16.0  14.5  Wed 11 pm ED 10.8  6.6   MSG          





&&

LAT...LON 4059 7545 4063 7543 4065 7534 4071 7520
      4066 7520 4061 7533

$$

Meola
303 
WGUS81 KPHI 021129
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
729 AM EDT Thu Sep 2 2021

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

  Lehigh River At Lehighton affecting Carbon County.

PAC025-021230-
/O.CAN.KPHI.FL.W.0037.000000T0000Z-210902T1129Z/
/LHTP1.3.ER.210901T2322Z.210902T0446Z.210902T1300Z.NO/
729 AM EDT Thu Sep 2 2021

...The Flood Warning for the Lehigh River At Lehighton has been 
cancelled...

The Flood Warning is cancelled for
  the Lehigh River At Lehighton.
* At 7:16 AM EDT Thursday the stage was 9.8 feet.
* Flood stage is 10.0 feet.
* Forecast...The river will continue to fall this morning.

&&


            Fld   Observed           Forecasts (8 am EDT)     
Location    Stg   Stg   Day/Time     Fri   Sat   Sun          

Lehigh River
Lehighton   10.0  9.8   Thu 7 am EDT 6.0   5.0   MSG          





&&

LAT...LON 4083 7573 4085 7567 4081 7564 4081 7559
      4077 7563 4077 7567

$$

Kruzdlo

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 6:19 AM EDTAreal Flood AdvisoryPHIChester, Delaware116 min
Sep 1, 6:49 AM EDTFlash Flood WarningPHIChester, Delaware, Philadelphia86 min
Sep 1, 11:24 AM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh, Monroe, Northampton3 hr
Sep 1, 12:07 PM EDTFlash Flood WarningPHICarbon, Monroe4 hr
Sep 1, 1:29 PM EDTFlash Flood WarningPHIBerks, Lehigh6 hr
Sep 1, 2:53 PM EDTFlash Flood WarningPHIBerks, Chester, Delaware, Montgomery9 hr
Sep 1, 3:55 PM EDTRiver Flood WarningPHIMontgomery36 hr
Sep 1, 3:55 PM EDTRiver Flood WarningPHIChester, Montgomery, Philadelphia43 hr
Sep 1, 3:55 PM EDTRiver Flood WarningPHIMontgomery, Philadelphia41 hr
Sep 1, 3:55 PM EDTRiver Flood WarningPHIPhiladelphia39 hr
Sep 1, 3:55 PM EDTRiver Flood WarningPHIBerks24 hr
Sep 1, 4:02 PM EDTRiver Flood WarningPHIMonroe24 hr
Sep 1, 4:04 PM EDTAreal Flood WarningPHICarbon, Monroe, Northampton24 hr
Sep 1, 4:10 PM EDTRiver Flood WarningPHIMonroe19 hr
Sep 1, 4:12 PM EDTFlash Flood WarningPHIBerks, Bucks, Lehigh, Montgomery, Northampton7 hr
Sep 1, 4:12 PM EDTRiver Flood WarningPHILehigh, Northampton25 hr
Sep 1, 4:12 PM EDTRiver Flood WarningPHILehigh, Northampton24 hr
Sep 1, 4:13 PM EDTTornado WarningPHIChester32 min
Sep 1, 4:20 PM EDTRiver Flood WarningPHIMontgomery22 hr
Sep 1, 4:21 PM EDTRiver Flood WarningPHIBucks29 hr
Sep 1, 4:42 PM EDTFlash Flood Warning EmergencyConsiderable damage threatPHIChester, Delaware, Montgomery6 hr
Sep 1, 5:07 PM EDTRiver Flood WarningPHIChester17 hr
Sep 1, 5:13 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia47 min
Sep 1, 5:15 PM EDTTornado WarningPHIDelaware, Montgomery, Philadelphia30 min
Sep 1, 5:26 PM EDTFlash Flood WarningPHIBucks, Delaware, Montgomery, Philadelphia9 hr
Sep 1, 5:34 PM EDTTornado WarningPHIBucks, Montgomery, Philadelphia26 min
Sep 1, 5:42 PM EDTFlash Flood WarningPHIBucks10 hr
Sep 1, 5:57 PM EDTTornado WarningPHIBucks33 min
Sep 1, 6:08 PM EDTFlash Flood WarningPHIMonroe, Northampton6 hr
Sep 1, 6:20 PM EDTTornado WarningPHIBucks40 min
Sep 1, 6:22 PM EDTTornado Warning Tornado observedPHIPhiladelphia23 min
Sep 1, 6:38 PM EDTRiver Flood WarningPHIChester, Delaware26 hr
Sep 1, 6:42 PM EDTTornado WarningPHIBucks, Philadelphia33 min
Sep 1, 6:59 PM EDTSevere Thunderstorm WarningPHIBucks61 min
Sep 1, 7:04 PM EDTTornado Warning EmergencyTornado observedCatastrophic damage threatPHIBucks26 min
Sep 1, 7:05 PM EDTFlash Flood Warning EmergencyCatastrophic damage threatPHIBucks8 hr
Sep 1, 7:22 PM EDTTornado WarningPHIBucks11 min
Sep 1, 7:23 PM EDTAreal Flood WarningPHIBerks, Lehigh14 hr
Sep 1, 7:31 PM EDTFlash Flood Warning EmergencyCatastrophic damage threatPHIBucks4 hr
Sep 1, 7:53 PM EDTRiver Flood WarningPHIDelaware13 hr

Nearby

River Flood Warnings in Pennsylvania, 2021Every river flood warning in 2021

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.