River Flood Warning 16, NWS Philadelphia/Mount Holly

Issued

Aug 23, 2021, 3:50 AM EDT (07:50 UTC)

In effect from

Aug 23, 2021, 7:00 AM EDT

Expired

Aug 23, 2021, 2:20 PM EDT

In force

7 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

Minor

Counties Lehigh County, PA, Northampton County, PA

The Philadelphia radar (KDIX), 129 km from the middle of the area, began a volume at 07:50 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.

Written for the forecast point Lehigh River at Walnutport (WNTP1). The gauge peaked at 9.16 ft at Aug 23, 2021, 7:00 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.

570 
WGUS41 KPHI 230750
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
350 AM EDT Mon Aug 23 2021

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

  Lehigh River At Lehighton affecting Carbon County.

  Lehigh River At Walnutport affecting Lehigh and Northampton 
  Counties.

For the Lehigh River, including Lehighton and Walnutport, minor 
flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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


PAC025-231645-
/O.NEW.KPHI.FL.W.0015.210823T0800Z-210823T1640Z/
/LHTP1.1.ER.210823T0800Z.210823T0900Z.210823T1040Z.NO/
350 AM EDT Mon Aug 23 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Lehigh River At Lehighton.
* Until this afternoon.
* At 3:30 AM EDT Monday the river level was 8.9 feet.
* Flood stage is 10.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage early 
  this morning to a crest of 10.5 feet. It should then fall back 
  below flood stage late this 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 am EDT)     
Location    Stg   Stg   Day/Time     Tue   Wed   Thu          

Lehigh River
Lehighton   10.0  8.9   Mon 3 am EDT 6.4   5.0   4.5          





&&

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

$$

PAC077-095-232000-
/O.NEW.KPHI.FL.W.0016.210823T1100Z-210824T0028Z/
/WNTP1.1.ER.210823T1100Z.210823T1200Z.210823T1827Z.NO/
350 AM EDT Mon Aug 23 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Lehigh River At Walnutport.
* From this morning to this evening.
* At 3:30 AM EDT Monday the river level was 6.6 feet.
* Flood stage is 8.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  morning to a crest of 8.2 feet. It should then fall back below 
  flood stage this afternoon.
* Impact...At 6.0 feet, minor flooding begins downstream at 
  Catasaqua and Hokendaqua.
* Flood History...This crest compares to a previous crest of 8.8 
  feet on 09/09/2011.

&&


            Fld   Observed           Forecasts (2 am EDT)     
Location    Stg   Stg   Day/Time     Tue   Wed   Thu          

Lehigh River
Walnutport  8.0   6.6   Mon 3 am EDT 6.1   4.7   4.1          





&&

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

$$

Iovino

623 
WGUS81 KPHI 231453
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1053 AM EDT Mon Aug 23 2021

...Observed flooding changed to Minor severity for the following 
rivers in Pennsylvania...

  Lehigh River At Walnutport affecting Lehigh and Northampton 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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


PAC077-095-240030-
/O.CON.KPHI.FL.W.0016.000000T0000Z-210824T0028Z/
/WNTP1.1.ER.210823T0854Z.210823T1131Z.210823T1703Z.NO/
1053 AM EDT Mon Aug 23 2021

...Observed flooding increased to Minor severity...

The Flood Warning continues for
  the Lehigh River At Walnutport.
* Until this evening.
* At 10:30 AM EDT Monday the stage was 8.5 feet.
* Flood stage is 8.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 10:30 AM EDT Monday was 9.2 feet.
* Forecast...The river is expected to fall below flood stage this 
  afternoon and continue falling to 3.9 feet Thursday morning.
* Impact...At 6.0 feet, Minor flooding begins downstream at 
  Catasaqua and Hokendaqua.
* Flood History...This crest compares to a previous crest of 8.8 
  feet on 09/09/2011.

&&


            Fld   Observed           Forecasts (8 am EDT)     
Location    Stg   Stg   Day/Time     Tue   Wed   Thu          

Lehigh River
Walnutport  8.0   8.5   Mon 10 am ED 5.6   4.4   3.9          





&&

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

$$

Kruzdlo

410 
WGUS81 KPHI 231820
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
220 PM EDT Mon Aug 23 2021

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

  Lehigh River At Walnutport affecting Lehigh and Northampton 
  Counties.

PAC077-095-231930-
/O.CAN.KPHI.FL.W.0016.000000T0000Z-210823T1820Z/
/WNTP1.1.ER.210823T0854Z.210823T1131Z.210823T1724Z.NO/
220 PM EDT Mon Aug 23 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 1:46 PM EDT Monday the stage was 7.9 feet.
* Flood stage is 8.0 feet.
* Forecast...The river is expected to fall to 3.9 feet Thursday 
  morning.

&&


            Fld   Observed           Forecasts (2 pm EDT)     
Location    Stg   Stg   Day/Time     Tue   Wed   Thu          

Lehigh River
Walnutport  8.0   7.9   Mon 1 pm EDT 5.2   4.3   MSG          





&&

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

$$

Kruzdlo

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

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.