Alert archive / Pennsylvania / River Flood Warnings in 2021
River Flood Warning 35, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Sep 1, 2021, 4:12 PM EDT for Lehigh County, Northampton County, Pennsylvania. It took effect at Sep 1, 2021, 8:22 PM EDT. It was in force for 21 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, 4:57 PM EDT
- In force
- 21 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 129 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 Walnutport (WNTP1). The gauge peaked at 13.18 ft at Sep 2, 2021, 3:00 AM EDT.
- Action stage
- 7.5 ft
- Minor stage
- 8 ft
- Moderate stage
- 12 ft
- Major stage
- 16 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01451000, 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
$$
Kruzdlo5 follow-up statements
936
WGUS81 KPHI 020022
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
822 PM EDT Wed Sep 1 2021
...The Flood Warning is extended for the following rivers in
Pennsylvania...
Lehigh River At Lehighton affecting Carbon County.
Lehigh River At Walnutport affecting Lehigh and Northampton
Counties.
...The Flood Warning continues for the following rivers in
Pennsylvania...
Lehigh River At Bethlehem affecting Lehigh and Northampton
Counties.
For the Lehigh River...including Lehighton, Walnutport, Bethlehem...
Minor flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
PAC025-021230-
/O.EXT.KPHI.FL.W.0037.210902T0022Z-210902T2046Z/
/LHTP1.1.ER.210901T2322Z.210902T1200Z.210902T1446Z.NO/
822 PM EDT Wed Sep 1 2021
...The Flood Warning is now in effect until tomorrow afternoon...
The Flood Warning continues for
the Lehigh River At Lehighton.
* From this evening to Thursday afternoon.
* At 8:01 PM EDT Wednesday the stage was 10.6 feet.
* Flood stage is 10.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 8:01 PM EDT Wednesday was 10.6 feet.
* Forecast...The river is expected to rise to a crest of 10.6 feet
tomorrow morning. It will then fall below flood stage late
tomorrow morning.
* Impact...At 9.0 feet, Open adjacent land in Lehigh Gorge State
Park floods.
* Impact...At 10.0 feet, Flooding begins in Jim Thorpe.
* Flood History...This crest compares to a previous crest of 10.5
feet on 04/11/1993.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Lehigh River
Lehighton 10.0 10.6 Wed 8 pm EDT 8.4 6.8 MSG
&&
LAT...LON 4083 7573 4085 7567 4081 7564 4081 7559
4077 7563 4077 7567
$$
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
$$
PAC077-095-021230-
/O.CON.KPHI.FL.W.0036.210902T0800Z-210903T0324Z/
/BETP1.1.ER.210902T0800Z.210902T1200Z.210902T2124Z.NO/
822 PM EDT Wed Sep 1 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Lehigh River At Bethlehem.
* From late tonight to Thursday evening.
* At 8:02 PM EDT Wednesday the stage was 9.4 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late
tonight to a crest of 19.0 feet tomorrow morning. It will then
fall below flood stage tomorrow afternoon.
* Impact...At 14.0 feet, Flooding begins upstream in Allentown.
Backwater begins to effect the Little Lehigh and Jordan creeks.
* Impact...At 15.0 feet, The islands in the Allentown area begin to
flood.
* Impact...At 15.5 feet, Sand Island Recreational Area in Bethlehem
is flooded.
* Impact...At 16.0 feet, Wilson Avenue takes on water.
* Flood History...This crest compares to a previous crest of 18.7
feet on 08/24/1933.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Lehigh River
Bethlehem 16.0 9.4 Wed 8 pm EDT 14.7 8.7 MSG
&&
LAT...LON 4059 7545 4063 7543 4065 7534 4071 7520
4066 7520 4061 7533
$$
CMS438
WGUS81 KPHI 020140
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
940 PM EDT Wed Sep 1 2021
...The Flood Warning is extended for the following rivers in
Pennsylvania...
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...
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.
PAC077-095-021345-
/O.EXT.KPHI.FL.W.0035.000000T0000Z-210903T1108Z/
/WNTP1.1.ER.210901T2336Z.210902T1200Z.210903T0508Z.NO/
940 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.
* Until Friday morning.
* At 9:30 PM EDT Wednesday the stage was 10.3 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 9:30 PM EDT Wednesday was 10.3 feet.
* Forecast...The river is expected to rise to a crest of 11.8 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 11.7
feet on 06/23/1972.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Lehigh River
Walnutport 8.0 10.3 Wed 9 pm EDT 8.6 6.6 5.8
&&
LAT...LON 4077 7563 4081 7559 4064 7542 4059 7545
$$
PAC077-095-021345-
/O.EXT.KPHI.FL.W.0036.210902T0727Z-210903T0318Z/
/BETP1.1.ER.210902T0727Z.210902T1200Z.210902T2118Z.NO/
940 PM EDT Wed Sep 1 2021
...The Flood Warning is now in effect until late tomorrow evening...
The Flood Warning continues for
the Lehigh River At Bethlehem.
* From late tonight to Thursday evening.
* At 9:30 PM EDT Wednesday the stage was 11.5 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late
tonight to a crest of 19.1 feet tomorrow morning. It will then
fall below flood stage tomorrow afternoon.
* Impact...At 14.0 feet, Flooding begins upstream in Allentown.
Backwater begins to effect the Little Lehigh and Jordan creeks.
* Impact...At 15.0 feet, The islands in the Allentown area begin to
flood.
* Impact...At 15.5 feet, Sand Island Recreational Area in Bethlehem
is flooded.
* Impact...At 16.0 feet, Wilson Avenue takes on water.
* Flood History...This crest compares to a previous crest of 18.7
feet on 08/24/1933.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Lehigh River
Bethlehem 16.0 11.5 Wed 9 pm EDT 14.7 8.3 6.3
&&
LAT...LON 4059 7545 4063 7543 4065 7534 4071 7520
4066 7520 4061 7533
$$
CMS817
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
$$
Meola945
WGUS81 KPHI 021501
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1101 AM EDT Thu Sep 2 2021
...The Flood Warning continues for the following rivers in
Pennsylvania...
Lehigh River At Bethlehem affecting Lehigh and Northampton
Counties.
Lehigh River At Walnutport affecting Lehigh and Northampton
Counties.
For the Lehigh River...including Walnutport, Bethlehem...Minor
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
PAC077-095-030100-
/O.EXT.KPHI.FL.W.0036.000000T0000Z-210903T0046Z/
/BETP1.1.ER.210902T0423Z.210902T1200Z.210902T1846Z.NO/
1101 AM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until this evening...
The Flood Warning continues for
the Lehigh River At Bethlehem.
* Until this evening.
* At 10:30 AM EDT Thursday the stage was 18.6 feet.
* Flood stage is 16.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 AM EDT Thursday was 19.5 feet.
* Forecast...The river is expected to fall below flood stage this
afternoon and continue falling to 4.2 feet Sunday morning.
* Impact...At 14.0 feet, Flooding begins upstream in Allentown.
Backwater begins to effect the Little Lehigh and Jordan creeks.
* Impact...At 15.0 feet, The islands in the Allentown area begin to
flood.
* Impact...At 15.5 feet, Sand Island Recreational Area in Bethlehem
is flooded.
* Impact...At 16.0 feet, Wilson Avenue takes on water.
* Flood History...This crest compares to a previous crest of 18.5
feet on 07/10/1935.
&&
Fld Observed Forecasts (8 am EDT)
Location Stg Stg Day/Time Fri Sat Sun
Lehigh River
Bethlehem 16.0 18.6 Thu 10 am ED 9.4 5.6 4.2
&&
LAT...LON 4059 7545 4063 7543 4065 7534 4071 7520
4066 7520 4061 7533
$$
PAC077-095-030315-
/O.EXT.KPHI.FL.W.0035.000000T0000Z-210903T0400Z/
/WNTP1.1.ER.210901T2336Z.210902T0630Z.210902T2200Z.NO/
1101 AM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until just after midnight
tonight...
The Flood Warning continues for
the Lehigh River At Walnutport.
* Until late tonight.
* At 10:46 AM EDT Thursday the stage was 9.8 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 10:46 AM EDT Thursday was 13.2 feet.
* Forecast...The river is expected to fall below flood stage this
evening and continue falling to 4.5 feet Sunday morning.
* Impact...At 6.0 feet, Minor flooding begins downstream at
Catasaqua and Hokendaqua.
* Flood History...This crest compares to a previous crest of 9.5
feet on 04/11/1993.
&&
Fld Observed Forecasts (8 am EDT)
Location Stg Stg Day/Time Fri Sat Sun
Lehigh River
Walnutport 8.0 9.8 Thu 10 am ED 6.3 5.1 4.5
&&
LAT...LON 4077 7563 4081 7559 4064 7542 4059 7545
$$
Kruzdlo211
WGUS81 KPHI 022057
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
457 PM EDT Thu Sep 2 2021
...The Flood Warning is cancelled for the following rivers in
Pennsylvania...
Lehigh River At Walnutport affecting Lehigh and Northampton
Counties.
PAC077-095-022200-
/O.CAN.KPHI.FL.W.0035.000000T0000Z-210902T2057Z/
/WNTP1.1.ER.210901T2336Z.210902T0630Z.210902T2015Z.NO/
457 PM EDT Thu Sep 2 2021
...The Flood Warning for the Lehigh River At Walnutport has been
cancelled...
The Flood Warning is cancelled for
the Lehigh River At Walnutport.
* At 4:31 PM EDT Thursday the stage was 7.9 feet.
* Flood stage is 8.0 feet.
* Forecast...The river is expected to fall to 4.4 feet early Sunday
afternoon.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Lehigh River
Walnutport 8.0 7.9 Thu 4 pm EDT 6.0 4.9 4.4
&&
LAT...LON 4077 7563 4081 7559 4064 7542 4059 7545
$$
KruzdloThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 6:19 AM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 116 min |
| Sep 1, 6:49 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 86 min |
| Sep 1, 11:24 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 3 hr |
| Sep 1, 12:07 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| Sep 1, 1:29 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh | 6 hr |
| Sep 1, 2:53 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 9 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery | 36 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 43 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 41 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Philadelphia | 39 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Berks | 24 hr |
| Sep 1, 4:02 PM EDT | River Flood Warning | PHI | Monroe | 24 hr |
| Sep 1, 4:04 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe, Northampton | 24 hr |
| Sep 1, 4:10 PM EDT | River Flood Warning | PHI | Monroe | 19 hr |
| Sep 1, 4:12 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 7 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 24 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Carbon | 15 hr |
| Sep 1, 4:13 PM EDT | Tornado Warning | PHI | Chester | 32 min |
| Sep 1, 4:20 PM EDT | River Flood Warning | PHI | Montgomery | 22 hr |
| Sep 1, 4:21 PM EDT | River Flood Warning | PHI | Bucks | 29 hr |
| Sep 1, 4:42 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 6 hr |
| Sep 1, 5:07 PM EDT | River Flood Warning | PHI | Chester | 17 hr |
| Sep 1, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Sep 1, 5:15 PM EDT | Tornado Warning | PHI | Delaware, Montgomery, Philadelphia | 30 min |
| Sep 1, 5:26 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 9 hr |
| Sep 1, 5:34 PM EDT | Tornado Warning | PHI | Bucks, Montgomery, Philadelphia | 26 min |
| Sep 1, 5:42 PM EDT | Flash Flood Warning | PHI | Bucks | 10 hr |
| Sep 1, 5:57 PM EDT | Tornado Warning | PHI | Bucks | 33 min |
| Sep 1, 6:08 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 6 hr |
| Sep 1, 6:20 PM EDT | Tornado Warning | PHI | Bucks | 40 min |
| Sep 1, 6:22 PM EDT | Tornado Warning | PHI | Philadelphia | 23 min |
| Sep 1, 6:38 PM EDT | River Flood Warning | PHI | Chester, Delaware | 26 hr |
| Sep 1, 6:42 PM EDT | Tornado Warning | PHI | Bucks, Philadelphia | 33 min |
| Sep 1, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 61 min |
| Sep 1, 7:04 PM EDT | Tornado Warning | PHI | Bucks | 26 min |
| Sep 1, 7:05 PM EDT | Flash Flood Warning | PHI | Bucks | 8 hr |
| Sep 1, 7:22 PM EDT | Tornado Warning | PHI | Bucks | 11 min |
| Sep 1, 7:23 PM EDT | Areal Flood Warning | PHI | Berks, Lehigh | 14 hr |
| Sep 1, 7:31 PM EDT | Flash Flood Warning | PHI | Bucks | 4 hr |
| Sep 1, 7:53 PM EDT | River Flood Warning | PHI | Delaware | 13 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.